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List of asteroid close approaches to Earth in 2019

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Time of discovery of asteroids which came closer to Earth than the Moon in 2019
After closest approach: 47 (57.3%)< 24 hours before: 11 (13.4%)up to 7 days before: 20 (24.4%)> one week before: 4 (4.9%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)
  •   After closest approach: 47 (57.3%)
  •   < 24 hours before: 11 (13.4%)
  •   up to 7 days before: 20 (24.4%)
  •   > one week before: 4 (4.9%)
  •   > 7 weeks before: 0 (0.0%)
  •   > one year before: 0 (0.0%)
Other Years
2017, 2018, 2019, 2020, 2021
Simulated animation of 66391 Moshup (previously KW4), a binary system asteroid, which came within 15 lunar distances in May 2019

Below is the list of asteroid close approaches to Earth in 2019.

Timeline of known close approaches less than one lunar distance from Earth

[edit]

A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2019.[note 1] 2019 has been a notable year in that an asteroid was detected prior to impact (2019 MO). This has only happened three times previously (see List of successfully predicted asteroid impacts). In addition, for the first year ever, four close approaches of previously undiscovered asteroids were successfully predicted over a week in advance.

For reference, the radius of Earth is approximately 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 lunar distances.
Geosynchronous satellites have an orbit with semi-major axis length of 0.000282 AU (42,200 km; 26,200 mi) or 0.110 lunar distances. A number of known asteroids came closer than this in 2019, notably including 2019 MO which was detected a few hours before it impacted, only the fourth asteroid impact in history to have been successfully predicted in advance.
While most asteroids on this list are confirmed, well-observed unconfirmed objects with a 50% or greater chance of passing within 1 LD of the Earth are included as well.

The largest asteroid to pass within 1 LD of Earth in 2019 was 2019 OK with an estimated diameter of around 95 meters and an absolute magnitude of 23.3. The fastest asteroid to pass within 1 LD of Earth in 2019 was 2019 FC1 that passed Earth with a velocity with respect to Earth of 25.9 km/s (58,000 mph).[1][note 2]

  Rows highlighted red indicate objects which were not discovered until after closest approach

  Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach

  Rows highlighted green indicate objects discovered more than one week before closest approach

  Rows highlighted turquoise indicate objects discovered more than 7 weeks before closest approach

  Rows highlighted blue indicate objects discovered more than one year before closest approach (i.e.
objects successfully cataloged on a previous orbit, rather than being detected during final approach)

Date of
closest
approach 		Date
discovered 		Object Nominal geocentric
distance (AU)[note 3] 		Nominal geocentric
distance (LD) 		Size (m)
(approximate) 		(H)
(abs. mag) 		Closer
approach
to Moon 		Refs[2][3]
2019-01-08 2019-01-08 2019 AS5 0.000101 AU (15,100 km; 9,400 mi) 0.039 0.7–2.5 32.3 — data · 2019 AS5
2019-01-12 2019-01-11 2019 AE9 0.000666 AU (99,600 km; 61,900 mi) 0.26 8–25 27.2 — data · 2019 AE9
2019-01-12 2019-01-16 P10LI6O 0.0023 AU (340,000 km; 210,000 mi) 0.90[note 4] 3–18 28.6 ? Pseudo-MPEC
CNEOS Distance (H) (T)
2019-01-16 2019-01-17 2019 BO 0.000460 AU (68,800 km; 42,800 mi) 0.18 5–18 28.0 — data · 2019 BO
2019-01-17 2019-01-16 P10LGkb 0.000225 AU (33,700 km; 20,900 mi) 0.088[note 5] 1–3 31.6 — Pseudo-MPEC
CNEOS Distance (H) (T)
2019-01-24 2019-01-25 2019 BV1 0.000904 AU (135,200 km; 84,000 mi) 0.35 3–14 28.7 — data · 2019 BV1
2019-01-27 2019-01-28 C04U1L2 0.0015 AU (220,000 km; 140,000 mi) 0.60[note 6] 2–12 29.4 ? Pseudo-MPEC
CNEOS Distance (H) (T)
2019-01-27 2019-01-28 2019 BZ3 0.000322 AU (48,200 km; 29,900 mi) 0.13 4–12 28.7 — data · 2019 BZ3
2019-02-09 2019-02-09 C03CZA1 0.00175 AU (262,000 km; 163,000 mi) 0.68[note 7] 9–30 26.9 — Pseudo-MPEC
CNEOS Distance (H) (T)
2019-02-11 2019-02-12 2019 CN5 0.000793 AU (118,600 km; 73,700 mi) 0.31 6–19 27.8 — data · 2019 CN5
2019-02-26 2019-02-28 2019 DG2 0.00158 AU (236,000 km; 147,000 mi) 0.61 4–14 28.5 — data · 2019 DG2
2019-02-26 2019-02-26 2019 DF 0.00120 AU (180,000 km; 112,000 mi) 0.47 2–8 29.7 — data · 2019 DF
2019-03-01 2019-03-01 2019 EH1 0.000157 AU (23,500 km; 14,600 mi) 0.061 2–6 30.1 — data · 2019 EH1
2019-03-04 2019-03-05 C09Q4H2 0.000178 AU (26,600 km; 16,500 mi) 0.069[note 8] 1–3 31.9 — Pseudo-MPEC
CNEOS Distance (T)
2019-03-04 2019-03-04 C04H931 0.0014 AU (210,000 km; 130,000 mi) 0.54[note 9] 5–19 28.0 ? Pseudo-MPEC
CNEOS Distance (H) (T)
2019-03-06 2019-03-07 C0A1UN2 0.0000526 AU (7,870 km; 4,890 mi) 0.020[note 10] 0.4–1.3 33.5 —
2019-03-13 2019-03-14 2019 EN2 0.00221 AU (331,000 km; 205,000 mi) 0.86 6–21 27.6 — data · 2019 EN2
2019-03-22 2019-03-09 2019 EA2 0.00205 AU (307,000 km; 191,000 mi) 0.80 14–44 25.9 — data · 2019 EA2
2019-03-23 2019-03-25 2019 FQ 0.00220 AU (329,000 km; 205,000 mi) 0.86 10–23 27.1 — data · 2019 FQ2
2019-03-28 2019-03-29 2019 FC1 0.00069 AU (103,000 km; 64,000 mi) 0.27 20–45 25.6 ? data · 2019 FC1
2019-03-31 2019-03-29 2019 FV1 0.00223 AU (334,000 km; 207,000 mi) 0.87 4.6–10 28.8 ? data · 2019 FV1
2019-03-31 2019-04-03 2019 GP21 0.00238 AU (356,000 km; 221,000 mi) 0.93 3.0–6.6 29.8 ? data · 2019 GP21
2019-04-04 2020-02-15 2020 CD3 0.0000877 AU (13,120 km; 8,150 mi) 0.034 1.9–3.5 31.7 — data · 2020 CD3
2019-04-06 2019-04-05 A10cQ6k 0.000989 AU (148,000 km; 91,900 mi) 0.39[note 11] 6.7–22 27.5 —
2019-04-12 2019-04-09 2019 GN20 0.00253 AU (378,000 km; 235,000 mi) 0.98 14–31 26.4 ? data · 2019 GN20
2019-04-18 2019-04-09 2019 GC6 0.00146 AU (218,000 km; 136,000 mi) 0.57 13–30 26.5 ? data · 2019 GC6
2019-04-20 2019-04-21 2019 HE 0.00150 AU (224,000 km; 139,000 mi) 0.58 12–28 26.7 ? data · 2019 HE
2019-04-30 2019-05-01 2019 JK 0.00178 AU (266,000 km; 165,000 mi) 0.69 6.7–15 28 ? data · 2019 JK
2019-05-01 2019-05-01 C093PF1 0.000588 AU (88,000 km; 54,700 mi) 0.23[note 12] 1.9–6.2 30.2 —
2019-05-02 2019-05-03 2019 JX1 0.00120 AU (180,000 km; 112,000 mi) 0.47 4.0–8.9 29.1 ? data · 2019 JX1
2019-05-03 2019-05-04 C0M3DQ2 0.000879 AU (131,500 km; 81,700 mi) 0.34[note 13] 5.1–16 28.1 —
2019-05-05 2019-05-06 2019 JY2 0.00098 AU (147,000 km; 91,000 mi) 0.38 3.2–7.2 29.6 ? data · 2019 JY2
2019-05-16 2019-05-14 2019 JH7 0.00048 AU (72,000 km; 45,000 mi) 0.19 3.1–7.0 29.6 ? data · 2019 JH7
2019-05-28 2019-05-26 2019 KT 0.00217 AU (325,000 km; 202,000 mi) 0.85 13–29 26.6 ? data · 2019 KT
2019-06-06 2019-06-06 2019 LY4 0.00056 AU (84,000 km; 52,000 mi) 0.22 7.3–16 27.8 ? data · 2019 LY4
2019-06-08 2019-06-02 2019 LW4 0.00166 AU (248,000 km; 154,000 mi) 0.65 9.3–21 27.3 ? data · 2019 LW4
2019-06-22 2019-06-22 2019 MO Impact Impact 3–10 29.3 ? data · 2019 MO · [4] · [5]
2019-07-02 2019-07-04 2019 NK1 0.00177 AU (265,000 km; 165,000 mi) 0.69 2.6–5.7 30.1 ? data · 2019 NK1
2019-07-09 2019-06-29 2019 MB4 0.00211 AU (316,000 km; 196,000 mi) 0.82 16–35 26.2 ? data · 2019 MB4
2019-07-09 2019-07-09 2019 NF7 0.00253 AU (378,000 km; 235,000 mi) 0.98 6.4–14 28.1 ? data · 2019 NF7
2019-07-10 2019-07-07 2019 NN3 0.00214 AU (320,000 km; 199,000 mi) 0.83 29–66 24.8 ? data · 2019 NN3
2019-07-24 2019-07-21 2019 OD 0.00239 AU (358,000 km; 222,000 mi) 0.93 54–120 23.5 ? data · 2019 OD
2019-07-25 2019-07-24[note 14] 2019 OK 0.00048 AU (72,000 km; 45,000 mi) 0.19 59–130 23.3 ? data · 2019 OK
2019-07-28 2019-07-27 2019 OD3 0.00126 AU (188,000 km; 117,000 mi) 0.49 11–25 26.9 ? data · 2019 OD3
2019-07-29 2019-07-30 2019 ON3 0.00143 AU (214,000 km; 133,000 mi) 0.56 7.4–16 27.8 ? data · 2019 ON3
2019-08-20 2019-08-22 2019 QB1 0.00083 AU (124,000 km; 77,000 mi) 0.32 8.7–20 27.4 ? data · 2019 QB1
2019-08-20 2019-08-21 2019 QH2 0.00033 AU (49,000 km; 31,000 mi) 0.13 2.2–5.0 30.4 ? data · 2019 QH2
2019-08-22 2019-08-21 2019 QD 0.00200 AU (299,000 km; 186,000 mi) 0.78 4.7–11 28.8 ? data · 2019 QD
2019-08-26 2019-08-28 2019 QR8 0.00207 AU (310,000 km; 192,000 mi) 0.80 6.6–15 28 ? data · 2019 QR8
2019-08-26 2019-08-27 2019 QQ3 0.00064 AU (96,000 km; 59,000 mi) 0.25 3.7–8.2 29.3 ? data · 2019 QQ3
2019-09-02 2019-09-03 2019 RQ 0.00074 AU (111,000 km; 69,000 mi) 0.29 2.1–4.6 30.6 ? data · 2019 RQ
2019-09-05 2019-09-06 2019 RP1 0.00025 AU (37,000 km; 23,000 mi) 0.10 7.3–16 27.8 ? data · 2019 RP1
2019-09-07 2019-09-05 2019 RC1 0.00123 AU (184,000 km; 114,000 mi) 0.48 4.6–10 28.8 ? data · 2019 RC1
2019-09-16 2019-09-19 2019 SJ 0.00163 AU (244,000 km; 152,000 mi) 0.64 8.3–19 27.5 ? data · 2019 SJ
2019-09-21 2019-09-22 2019 SU2 0.00048 AU (72,000 km; 45,000 mi) 0.19 2.6–5.8 30.1 ? data · 2019 SU2
2019-09-21 2019-09-20 2019 SD1 0.00187 AU (280,000 km; 174,000 mi) 0.73 5.5–12 28.4 ? data · 2019 SD1
2019-09-21 2019-09-22 2019 SS2 0.00077 AU (115,000 km; 72,000 mi) 0.30 2.0–4.4 30.7 ? data · 2019 SS2
2019-09-22 2019-09-25 2019 SS3 0.00188 AU (281,000 km; 175,000 mi) 0.73 15–34 26.2 ? data · 2019 SS3
2019-09-28 2019-09-30 2019 SX8 0.00255 AU (381,000 km; 237,000 mi) 0.99 4.3–9.7 28.9 ? data · 2019 SX8
2019-09-28 2019-10-01 2019 TE 0.00238 AU (356,000 km; 221,000 mi) 0.93 6.8–15 28 ? data · 2019 TE
2019-09-29 2019-10-01 2019 TD 0.00087 AU (130,000 km; 81,000 mi) 0.34 3.9–8.7 29.2 ? data · 2019 TD
2019-10-01 2019-09-30 2019 SM8 0.00106 AU (159,000 km; 99,000 mi) 0.41 3.8–8.6 29.2 ? data · 2019 SM8
2019-10-03 2019-09-22 2019 SP3 0.00249 AU (372,000 km; 231,000 mi) 0.97 14–31 26.4 ? data · 2019 SP3
2019-10-05 2019-10-06 2019 TN5 0.00083 AU (124,000 km; 77,000 mi) 0.32 5.5–12 28.4 ? data · 2019 TN5
2019-10-18 2019-10-19 2019 UU1 0.00151 AU (226,000 km; 140,000 mi) 0.59 2.2–5.0 30.4 ? data · 2019 UU1
2019-10-18 2019-10-19 2019 UG 0.00215 AU (322,000 km; 200,000 mi) 0.84 6.3–14 28.1 ? data · 2019 UG
2019-10-19 2019-10-22 2019 UL3 0.00199 AU (298,000 km; 185,000 mi) 0.77 5.9–13 28.3 ? data · 2019 UL3
2019-10-23 2019-10-25 2019 UN8 0.00240 AU (359,000 km; 223,000 mi) 0.93 3.1–6.9 29.7 ? data · 2019 UN8
2019-10-25 2019-10-26 2019 UO8 0.00105 AU (157,000 km; 98,000 mi) 0.41 3.7–8.3 29.3 ? data · 2019 UO8
2019-10-26 2019-10-29 2019 UX12 0.00255 AU (381,000 km; 237,000 mi) 0.99 4.8–11 28.7 ? data · 2019 UX12
2019-10-27 2019-10-28 2019 UD10 0.00112 AU (168,000 km; 104,000 mi) 0.44 6.3–14 28.1 ? data · 2019 UD10
2019-10-29 2019-10-26 2019 UB8
(AKA 2019 US8)		 0.00127 AU (190,000 km; 118,000 mi) 0.50 4.3–9.7 28.9 ? data · 2019 UB8
2019-10-31 2019-10-31 2019 UN13 0.0000843 AU (12,610 km; 7,840 mi) 0.03 1.0–2.2 32.1 ? data · 2019 UN13
2019-11-01 2019-10-29 2019 UG11 0.00140 AU (209,000 km; 130,000 mi) 0.55 12–28 26.7 ? data · 2019 UG11
2019-11-02 2019-11-01 2019 VA 0.00071 AU (106,000 km; 66,000 mi) 0.28 5.8–13 28.3 ? data · 2019 VA
2019-11-04 2019-11-01 2019 VD 0.00117 AU (175,000 km; 109,000 mi) 0.45 8.7–20 27.4 ? data · 2019 VD
2019-11-04 2019-11-03 2019 VR 0.00091 AU (136,000 km; 85,000 mi) 0.35 6.4–14 28.1 ? data · 2019 VR
2019-11-06 2019-11-06 2019 VS4 0.00093 AU (139,000 km; 86,000 mi) 0.36 9.2–21 27.3 ? data · 2019 VS4
2019-11-09 2019-11-08 2019 VB5 0.00097 AU (145,000 km; 90,000 mi) 0.38 1.2–2.7 31.7 ? data · 2019 VB5
2019-11-09 2019-11-05 2019 VF5 0.00127 AU (190,000 km; 118,000 mi) 0.49 8.1–18 27.6 ? data · 2019 VF5
2019-11-19 2019-11-18 2019 WH 0.00057 AU (85,000 km; 53,000 mi) 0.22 15–35 26.2 ? data · 2019 WH
2019-11-19 2019-11-24 2019 WV1 0.00185 AU (277,000 km; 172,000 mi) 0.72 6.2–14 28.2 ? data · 2019 WV1
2019-11-23 2019-11-24 2019 WG2 0.00121 AU (181,000 km; 112,000 mi) 0.47 27–60 25 ? data · 2019 WG2
2019-11-30 2019-11-29 2019 WJ4 0.00219 AU (328,000 km; 204,000 mi) 0.85 5.5–12 28.4 ? data · 2019 WJ4
2019-12-18 2019-12-17 2019 YB 0.00113 AU (169,000 km; 105,000 mi) 0.44 3.1–7.0 29.7 ? data · 2019 YB
2019-12-18 2019-12-19 2019 YS 0.00044 AU (66,000 km; 41,000 mi) 0.17 1.3–3.0 31.5 ? data · 2019 YS
2019-12-23 2019-12-24 2019 YU2 0.00066 AU (99,000 km; 61,000 mi) 0.26 8.9–20 27.4 ? data · 2019 YU2
2019-12-25 2019-12-30 2019 YV4 0.00251 AU (375,000 km; 233,000 mi) 0.98 9.3–21 27.3 ? data · 2019 YV4

Warning Times by Size

[edit]

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.

Abs Magnitude 30 and greater

Silhouette of man standing and facing forward
Silhouette of man standing and facing forward

(size of a person for comparison)

After closest approach: 8 (61.5%)< 24 hours before: 3 (23.1%)up to 7 days before: 2 (15.4%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)

Abs Magnitude 29-30

After closest approach: 8 (61.5%)< 24 hours before: 3 (23.1%)up to 7 days before: 2 (15.4%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)

Absolute Magnitude 28-29

After closest approach: 15 (60.0%)< 24 hours before: 4 (16.0%)up to 7 days before: 6 (24.0%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)

Absolute Magnitude 27-28

After closest approach: 11 (73.3%)< 24 hours before: 0 (0.0%)up to 7 days before: 4 (26.7%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)

Absolute Magnitude 26-27

After closest approach: 3 (27.3%)< 24 hours before: 2 (18.2%)up to 7 days before: 3 (27.3%)> one week before: 3 (27.3%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)

Absolute Magnitude 25-26

After closest approach: 2 (66.7%)< 24 hours before: 0 (0.0%)up to 7 days before: 0 (0.0%)> one week before: 1 (33.3%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)

Absolute Magnitude less than 25 (largest)

After closest approach: 0 (0.0%)< 24 hours before: 0 (0.0%)up to 7 days before: 3 (100.0%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)
  •   After closest approach: 0 (0.0%)
  •   < 24 hours before: 0 (0.0%)
  •   up to 7 days before: 3 (100.0%)
  •   > one week before: 0 (0.0%)
  •   > 7 weeks before: 0 (0.0%)
  •   > one year before: 0 (0.0%)

Notes

[edit]
  1. ^ For a list of current Earth close approaches see NEO Earth Close Approaches
  2. ^ 2019 FC1 passed Earth with a velocity with respect to Earth of 25.9 km/s and was moving away from the Sun at 37.1 km/s.
  3. ^ Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km.
  4. ^ Distance error: 0.0012 AU, approach range: 0.40 to 1.36 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  5. ^ Distance error: 0.000420 AU, approach range: 0.016 to 0.25 LD. There was a roughly 2% chance of impact. The asteroid is most likely between 1 and 14 meters across, so would probably be detectable. The asteroid is unconfirmed and will likely never receive a provisional designation.
  6. ^ distance error: 0.0008 AU, approach range: 0.27 to 0.90 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  7. ^ distance error: 0.0010 AU, approach range: 0.30 to 1.07 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  8. ^ the asteroid is unconfirmed and will likely never receive a provisional designation.
  9. ^ distance error: 0.0004 AU, approach range: 0.39 to 0.70 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  10. ^ distance error: 0.00013 AU. The asteroid is unconfirmed and will likely never receive a provisional designation. The asteroid may have impacted Earth.
  11. ^ distance error: 0.00020 AU. The asteroid is unconfirmed and will likely never receive a provisional designation.
  12. ^ distance error: 0.00000085 AU. The asteroid is unconfirmed and will likely never receive a provisional designation.
  13. ^ distance error: 0.00032 AU. The asteroid is unconfirmed and will likely never receive a provisional designation.
  14. ^ 2019-07-04 is the official first observation date for this asteroid, credited to the SONEAR Observatory, Oliveira by the Minor Planet Center. However the object had been observed several times by other telescopes in the run up, but had not been recognised as an asteroid by their automated systems. See 2019 OK for more details

Timeline of close approaches less than one lunar distance from the Moon

[edit]

The number of asteroids listed here are significantly less than those of asteroids that approach Earth for several reasons. Asteroids that approach Earth not only move faster, but are brighter and are easier to detect with modern surveys because:

  • Asteroids that come closer to Earth are a higher priority to confirm, and only confirmed asteroids are listed with a lunocentric approach distance.
  • Those that closely approach the Moon are frequently lost in its glare, making them harder to confirm. They are similarly hard to discover during the new moon, when the Moon is too close to the Sun to detect asteroids while they are near the Moon.

These factors severely limit the amount of Moon-approaching asteroids, to a level many times lower than the asteroids detected passing as close to Earth.

Date of
closest
approach 		Object Nominal lunocentric
distance (AU)[note2 1] 		Nominal lunocentric
distance (LD) 		Size (m)
(approximate) 		(H)
approach
distance
to Earth
(LD) 		Refs
2019-01-04 2019 AB 0.00246 AU (368,000 km; 229,000 mi) 0.96 10–43 26.3 1.43 data · 2019 AB
2019-01-07 2019 AS5 0.00107 AU (160,000 km; 99,000 mi) 0.41 0.7–2.5 32.2 0.039 data · 2019 AS5
2019-01-15 2019 BO 0.00221 AU (331,000 km; 205,000 mi) 0.86 5–18 28.0 0.18 data · 2019 BO
2019-01-25 2019 BV1 0.00134 AU (200,000 km; 125,000 mi) 0.52 3–14 28.7 0.35 data · 2019 BV1
2019-01-27 2019 BZ3 0.00234 AU (350,000 km; 218,000 mi) 0.91 4–12 28.7 0.13 data · 2019 BZ3
2019-02-10 C03CZA1 0.00239 AU (358,000 km; 222,000 mi) 0.93[note2 2] 9–30 26.9 0.68 Pseudo-MPEC
CNEOS Distance (H) (T)
2019-02-11 2019 CN5 0.00181 AU (271,000 km; 168,000 mi) 0.70 6–19 27.8 0.31 data · 2019 CN5
2019-02-11 2019 CY5 0.00252 AU (377,000 km; 234,000 mi) 0.98 12–45 26.1 1.42 data · 2019 CY5
2019-02-26 2019 DS1 0.00242 AU (362,000 km; 225,000 mi) 0.94 15–51 25.6 1.89 data · 2019 DS1
2019-02-26 2019 DM1 0.00223 AU (334,000 km; 207,000 mi) 0.87 5–18 28.0 1.32 data · 2019 DM1
2019-02-27 2019 DF 0.00170 AU (254,000 km; 158,000 mi) 0.66 2–8 29.7 0.47 data · 2019 DF
2019-03-01 2019 EH1 0.00184 AU (275,000 km; 171,000 mi) 0.72 2–6 30.1 0.061 data · 2019 EH1
2019-03-04 C09Q4H2 0.00256 AU (383,000 km; 238,000 mi) 0.998[note2 3] 1–3 31.9 0.069 Pseudo-MPEC
CNEOS Distance (T)

Notes

[edit]
  1. ^ Distance from the center of the Moon to the center of the object. The Moon has a radius of approximately 1,740 km.
  2. ^ Distance error: 0.0010 AU, approach range: 0.54 to 1.32 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  3. ^ the asteroid is unconfirmed and will likely never receive a provisional designation.

Additional examples

[edit]
Radar image of 2016 AZ8 and its satellite during close approach in January 2019
Moshup and its satellite Squannit imaged by the VLT during closest approach in May 2019

An example list of near-Earth asteroids that passed more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2019.

Object Size
meters 		lunar
distances 		Date Ref
2016 AZ8 215 11.59 2019-01-07 JPL · CAD
2019 BE5 40 3.05 2019-01-30 JPL · CAD
2015 EG 25 1.16+1.16
−0.02		 2019-03-04 JPL · CAD
2016 GE1 16 3.88+9.96
−2.77		 2019-04-04 ± 5 JPL · CAD
2018 VX8 111 6.15±0.09 2019-05-12 JPL · CAD
(12538) 1998 OH 1663 72.71 2019-05-16 JPL · CAD
2012 KT12 19 6.4[note2.5 1] 2019-05-17 JPL · CAD
66391 Moshup 1317 13.48 2019-05-25 JPL · CAD
(441987) 2010 NY65 228 7.27 2019-06-24 JPL · CAD
2016 NO56 25 3.41+36.86
−2.41[note2.5 1]		 2019-07-07 ± 6 JPL · CAD
2019 PG1 270 61.53 2019-07-24 JPL · CAD
2010 PK9 138 8.20 2019-07-26 JPL · CAD
2011 PN1 11 61.97+90.70
−61.00[note2.5 1]		 2019-08-07 ± 5 JPL · CAD
(66146) 1998 TU3 2864 28.89 2019-08-25 JPL · CAD
2019 OU1 115 2.67 2019-08-28 JPL · CAD
1620 Geographos 2560 53.42 2019-08-31 JPL · CAD
2009 EH1 9 58.91+76.41
−58.43[note2.5 1]		 2019-09-09 ± 9 JPL · CAD
2100 Ra-Shalom 2300 69.94 2019-09-21 JPL · CAD
2016 XA2 164 66.91+66.18
−65.98 [note2.5 1]		 2019-12-06 ± 7 JPL · CAD

Notes

[edit]
  1. ^ a b c d e 2012 KT12 could have potentially passed less than 1 lunar distance to Earth, but the chances were fairly low and as such it was not listed in the main table unless followup observations confirmed that it would pass less than 1 LD from Earth. It was recovered on 2 May 2019.

Virtual impactors

[edit]

Listed are asteroids that are included on the Sentry Risk Table because they have short observation arcs with poorly constrained orbits and have a chance of striking Earth in 2019. Given a short observation arc, many different orbits fit the observed data. These objects could be millions if not billions of kilometers from Earth on the date of a low probability virtual impactor. For example, 2008 SH148 is expected to be 5.3 AU (800 million km) from Earth in October 2019 around the time of the virtual impact.

Cumulatively among the asteroids listed below, there is a roughly 1 in 16,500 chance that any of the asteroids will impact Earth in 2019. Most of this comes from asteroid 2006 QV89 which formerly had a 1 in 20,000 chance of impact on 9 September 2019, but the impact was ruled out in August.

Also included are asteroids discovered before impact and exceptionally massive fireballs with either an equivalent yield of more than 1 kiloton of TNT or an estimated size of more than 3 meters.

Date Object Estimated
diameter
(meters) 		Obs
arc
(days) 		Impact
probability
(1 in) 		Sigma from
best-fit orbit
[note3 1] 		Palermo
scale 		JPL Horizons
nominal geocentric
distance (AU) 		NEODyS
nominal geocentric
distance (AU)
2019-01-06[6] 2005 NX55 80–260 1.1 710,000,000 -2.461 -5.51 2.8 AU (420,000,000 km; 260,000,000 mi) 3.0 AU (450,000,000 km; 280,000,000 mi)
2019-01-06[7] 2010 JA43 459–497 2.7 210,000,000 -2.004 -4.32 2.4 AU (360,000,000 km; 220,000,000 mi) 2.9 AU (430,000,000 km; 270,000,000 mi)
2019-01-07[8] 2014 HN198[note3 2] 15–47 5.9 (0.99) N/A (1,400,000,000) N/A (-0.160) N/A (-8.09) 1.5 AU (220,000,000 km; 140,000,000 mi) 1.5 AU (220,000,000 km; 140,000,000 mi)
2019-01-08[9] 2010 DG77[note3 3][note3 4] 309–321 0.60 220,000,000 -4.057 -6.94 3.0 AU (450,000,000 km; 280,000,000 mi) 0.52 AU (78,000,000 km; 48,000,000 mi)
2019-01-10[10] 2008 EL68[note3 5] 6–20 0.071 36,000,000 -1.475 -7.80 1.4 AU (210,000,000 km; 130,000,000 mi) 1.2 AU (180,000,000 km; 110,000,000 mi)
2019-01-10[11] 2016 AZ193[note3 6] 10–35 0.16 4,200,000,000 -3.197 -8.22 1.3 AU (190,000,000 km; 120,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-01-11[9] 2010 DG77 309–321 0.60 4,200,000,000 -2.874 -6.91 3.0 AU (450,000,000 km; 280,000,000 mi) 0.51 AU (76,000,000 km; 47,000,000 mi)
2019-01-11[9] 2010 DG77 309–321 0.60 2,900,000,000 -2.297 -6.52 3.0 AU (450,000,000 km; 280,000,000 mi) 0.51 AU (76,000,000 km; 47,000,000 mi)
2019-01-11[12] 2010 XC[note3 7] 3–12 0.058 17,000,000 -1.593 -7.91 2.4 AU (360,000,000 km; 220,000,000 mi) 2.4 AU (360,000,000 km; 220,000,000 mi)
2019-01-20[11] 2016 AZ193 10–35 0.16 1,400,000,000 -3.137 -9.15 1.3 AU (190,000,000 km; 120,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-02-01[13] N/A (not discovered
before impact)		 4 N/A 1 0.000 0 N/A
(impact)		 N/A
(impact)
2019-02-07[14] 2015 HV182[note3 8] 92–300 1.0 1,100,000,000 -0.900 -5.81 2.1 AU (310,000,000 km; 200,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-02-15[15] 2009 VZ39[note3 9] 5–16 0.043 290,000,000 0.751 -8.30 0.082 AU (12,300,000 km; 7,600,000 mi) 2.3 AU (340,000,000 km; 210,000,000 mi)
2019-02-15[16] 2011 CF66[note3 10] 7–23 0.18 62,000,000 -2.603 -7.84 1.3 AU (190,000,000 km; 120,000,000 mi) 0.29 AU (43,000,000 km; 27,000,000 mi)
2019-02-18[16] 2011 CF66 7–23 0.18 280,000,000 -2.921 -8.34 1.3 AU (190,000,000 km; 120,000,000 mi) 0.30 AU (45,000,000 km; 28,000,000 mi)
2019-02-18[13] N/A (not discovered
before impact		 5 N/A 1 0.000 0 N/A
(impact)		 N/A
(impact)
2019-02-20[17] 2008 JD33 14–59 0.12 260,000,000 -2.901 -8.73 4.4 AU (660,000,000 km; 410,000,000 mi) 4.1 AU (610,000,000 km; 380,000,000 mi)
2019-02-22[10] 2008 EL68 6–20 0.071 1,500,000 -0.914 -6.47 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-02-28[10] 2008 EL68 6–20 0.071 4,300,000 -1.271 -6.90 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-01[18] 2008 EK68[note3 11] 3–8 0.040 1,400,000,000 1.826 -9.38 1.2 AU (180,000,000 km; 110,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-02[10] 2008 EL68 6–20 0.071 8,300,000 -1.469 -7.14 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-02[18] 2008 EK68 3–8 0.040 830,000,000 2.221 -9.34 1.2 AU (180,000,000 km; 110,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-03[10] 2008 EL68 6–20 0.071 45,000,000 -2.055 -7.80 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-03[10] 2008 EL68 6–20 0.071 16,000,000 -1.712 -7.41 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-03[18] 2008 EK68 3–8 0.040 200,000,000 1.940 -8.93 1.2 AU (180,000,000 km; 110,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-03[18] 2008 EK68 3–8 0.040 71,000,000 1.771 -8.70 1.2 AU (180,000,000 km; 110,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-04[15] 2009 VZ39 5–16 0.043 130,000,000 1.257 -7.96 0.15 AU (22,000,000 km; 14,000,000 mi) 2.2 AU (330,000,000 km; 200,000,000 mi)
2019-03-09[10] 2008 EL68 6–20 0.071 5,000,000,000 3.289 -8.75 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-10[10] 2008 EL68 6–20 0.071 830,000,000 2.871 -8.09 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-10[10] 2008 EL68 6–20 0.071 91,000,000 2.767 -7.53 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-11[19] 2008 EM68[note3 12] 7–22 0.11 6,700,000 1.207 -6.51 0.37 AU (55,000,000 km; 34,000,000 mi) 2.3 AU (340,000,000 km; 210,000,000 mi)
2019-03-11[19] 2008 EM68 7–22 0.11 480,000 0.652 -5.47 0.37 AU (55,000,000 km; 34,000,000 mi) 2.3 AU (340,000,000 km; 210,000,000 mi)
2019-03-12[10] 2008 EL68 6–20 0.071 3,600,000 1.085 -6.47 1.5 AU (220,000,000 km; 140,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-03-12[19] 2008 EM68 7–22 0.11 11,000,000 1.823 -6.94 0.37 AU (55,000,000 km; 34,000,000 mi) 2.3 AU (340,000,000 km; 210,000,000 mi)
2019-03-14[19] 2008 EM68 7–22 0.11 830,000,000 2.905 -8.91 0.37 AU (55,000,000 km; 34,000,000 mi) 2.4 AU (360,000,000 km; 220,000,000 mi)
2019-04-03[20] 2014 HG196[note3 13] 10–33 1.0 590,000,000 2.345 -8.13 2.0 AU (300,000,000 km; 190,000,000 mi) 2.7 AU (400,000,000 km; 250,000,000 mi)
2019-04-03[21] 2014 MV67 220–710 0.94 2,100,000,000 0.441 -4.95 3.5 AU (520,000,000 km; 330,000,000 mi) 1.2 AU (180,000,000 km; 110,000,000 mi)
2019-04-09[20] 2014 HG196 10–33 1.0 6,200,000,000 3.011 -8.98 2.0 AU (300,000,000 km; 190,000,000 mi) 2.8 AU (420,000,000 km; 260,000,000 mi)
2019-04-18[22] 2008 US[note3 14] 1–4 0.081 43,000,000 -1.780 -9.20 2.6 AU (390,000,000 km; 240,000,000 mi) 2.7 AU (400,000,000 km; 250,000,000 mi)
2019-04-18[22] 2008 US 1–4 0.081 710,000 -1.526 -7.39 2.6 AU (390,000,000 km; 240,000,000 mi) 2.7 AU (400,000,000 km; 250,000,000 mi)
2019-04-29[23] 2017 UK52 7–28 0.18 91,000,000 1.988 -6.92 2.2 AU (330,000,000 km; 200,000,000 mi) 2.2 AU (330,000,000 km; 200,000,000 mi)
2019-05-01[11] 2016 AZ193 10–35 0.16 310,000,000 -2.900 -8.79 1.4 AU (210,000,000 km; 130,000,000 mi) 1.5 AU (220,000,000 km; 140,000,000 mi)
2019-05-04[24] 2014 MA68 16–40 0.95 91,000,000 -3.804 -7.23 2.8 AU (420,000,000 km; 260,000,000 mi) 2.8 AU (420,000,000 km; 260,000,000 mi)
2019-05-07[15] 2009 VZ39 5–16 0.043 260,000,000 1.252 -7.82 0.67 AU (100,000,000 km; 62,000,000 mi) 1.5 AU (220,000,000 km; 140,000,000 mi)
2019-05-21[13] N/A (not discovered
before impact		 5 N/A 1 0.000 0 N/A
(impact)		 N/A
(impact)
2019-06-03[25] 2014 LY21[note3 15] 3–10 0.045 400,000 -0.302 -5.66 0.45 AU (67,000,000 km; 42,000,000 mi) 0.72 AU (108,000,000 km; 67,000,000 mi)
2019-06-03[25] 2014 LY21 3–10 0.045 25,000,000 2.025 -7.89 0.45 AU (67,000,000 km; 42,000,000 mi) 0.72 AU (108,000,000 km; 67,000,000 mi)
2019-06-04[25] 2014 LY21 3–10 0.045 480,000,000 3.015 -9.33 0.46 AU (69,000,000 km; 43,000,000 mi) 0.72 AU (108,000,000 km; 67,000,000 mi)
2019-06-04[25] 2014 LY21 3–10 0.045 670,000 0.351 -6.63 0.46 AU (69,000,000 km; 43,000,000 mi) 0.72 AU (108,000,000 km; 67,000,000 mi)
2019-06-04[25] 2014 LY21 3–10 0.045 1,500,000 0.855 -7.12 0.46 AU (69,000,000 km; 43,000,000 mi) 0.73 AU (109,000,000 km; 68,000,000 mi)
2019-06-12[14] 2015 HV182 92–300 1.0 1,200,000,000 0.518 -6.13 1.1 AU (160,000,000 km; 100,000,000 mi) 1.1 AU (160,000,000 km; 100,000,000 mi)
2019-06-22 2019 MO 6 0.095 1 0.000 >0 0.00004 AU (6,000 km; 3,700 mi)
(impact)		 0.00004 AU (6,000 km; 3,700 mi)
(impact)
2019-07-07[26] 2014 CH13 28–90 0.96 59,000,000 -3.714 -6.25 0.94 AU (141,000,000 km; 87,000,000 mi) 0.82 AU (123,000,000 km; 76,000,000 mi)
2019-07-07[27] 2011 AE3 5–17 0.043 590,000,000 0.765 -7.85 0.72 AU (108,000,000 km; 67,000,000 mi) 0.75 AU (112,000,000 km; 70,000,000 mi)
2019-07-13[28] 2004 ME6 53–250 0.87 1,700,000,000 -2.219 -6.56 1.1 AU (160,000,000 km; 100,000,000 mi) 0.15 AU (22,000,000 km; 14,000,000 mi)
2019-07-21[29] 2012 BL14 5–16 0.12 260,000,000 3.036 -8.26 3.1 AU (460,000,000 km; 290,000,000 mi) 3.1 AU (460,000,000 km; 290,000,000 mi)
2019-08-19[30] 2015 ME131 270–860 1.8 710,000,000 0.809 -4.47 1.3 AU (190,000,000 km; 120,000,000 mi) 1.3 AU (190,000,000 km; 120,000,000 mi)
2019-08-30[31] 2015 HW182 18–57 1.0 450,000,000 -1.745 -7.54 2.1 AU (310,000,000 km; 200,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-09-07[19] 2008 EM68 7–22 0.11 220,000,000 2.279 -8.32 0.99 AU (148,000,000 km; 92,000,000 mi) 2.2 AU (330,000,000 km; 200,000,000 mi)
2019-09-09[32] 2006 QV89 18–59 9.9 20,000 2.894 -3.32 0.061 AU (9,100,000 km; 5,700,000 mi) 0.054 AU (8,100,000 km; 5,000,000 mi)
2019-09-11[19] 2008 EM68 7–22 0.11 830,000,000 -1.445 -8.40 0.97 AU (145,000,000 km; 90,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-09-12[19] 2008 EM68 7–22 0.11 710,000,000 -0.811 -8.51 0.97 AU (145,000,000 km; 90,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-09-12[19] 2008 EM68 7–22 0.11 110,000,000 -0.815 -7.72 0.97 AU (145,000,000 km; 90,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-09-13[19] 2008 EM68 7–22 0.11 310,000,000 -1.036 -8.06 0.97 AU (145,000,000 km; 90,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-09-13[19] 2008 EM68 7–22 0.11 2,400,000,000 -1.783 -8.73 0.97 AU (145,000,000 km; 90,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-09-20[14] 2015 HV182 92–300 1.0 7,700,000,000 0.093 -6.63 2.0 AU (300,000,000 km; 190,000,000 mi) 2.0 AU (300,000,000 km; 190,000,000 mi)
2019-09-22[33] 2009 FZ4 18–57 0.60 30,000,000 1.308 -6.31 1.5 AU (220,000,000 km; 140,000,000 mi) 1.4 AU (210,000,000 km; 130,000,000 mi)
2019-09-23[14] 2015 HV182 92–300 1.0 7,700,000,000 -2.410 -6.99 2.0 AU (300,000,000 km; 190,000,000 mi) 2.0 AU (300,000,000 km; 190,000,000 mi)
2019-10-03[34] 2007 FT3 210–680 1.2 11,000,000 -1.652 -3.17 0.93 AU (139,000,000 km; 86,000,000 mi) 1.1 AU (160,000,000 km; 100,000,000 mi)
2019-10-07[35] 2008 SH148 13–41 0.10 1,600,000,000 3.550 -8.39 5.3 AU (790,000,000 km; 490,000,000 mi) 5.4 AU (810,000,000 km; 500,000,000 mi)
2019-10-09[14] 2015 HV182 92–300 1.0 340,000,000 -0.355 -5.78 2.1 AU (310,000,000 km; 200,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-10-11[36] 2006 SF281[note3 16] 8–26 0.027 42,000,000 2.475 -7.08 2.6 AU (390,000,000 km; 240,000,000 mi) 1.4 AU (210,000,000 km; 130,000,000 mi)
2019-10-27[37] 2014 HR197[note3 17] 8–26 0.96 9,100,000,000 -3.524 -9.07 2.9 AU (430,000,000 km; 270,000,000 mi) 2.9 AU (430,000,000 km; 270,000,000 mi)
2019-10-28[37] 2014 HR197 8–26 0.96 910,000,000 -3.002 -8.30 2.9 AU (430,000,000 km; 270,000,000 mi) 2.9 AU (430,000,000 km; 270,000,000 mi)
2019-10-28[38] 2008 VL 6–22 0.12 1,500,000,000 -3.610 -9.35 2.0 AU (300,000,000 km; 190,000,000 mi) 2.0 AU (300,000,000 km; 190,000,000 mi)
2019-10-29[37] 2014 HR197 8–26 0.96 770,000,000 -3.196 -8.45 2.9 AU (430,000,000 km; 270,000,000 mi) 2.9 AU (430,000,000 km; 270,000,000 mi)
2019-11-01[39] 2010 VR139 11–31 0.064 38,000,000 -0.745 -7.29 2.2 AU (330,000,000 km; 200,000,000 mi) 2.1 AU (310,000,000 km; 200,000,000 mi)
2019-11-10[40] 2010 VP139[note3 18] 13–41 0.046 12,000,000 -2.326 -7.86 1.7 AU (250,000,000 km; 160,000,000 mi) 1.7 AU (250,000,000 km; 160,000,000 mi)
2019-11-12[40] 2010 VP139 13–41 0.046 15,000,000 -2.088 -8.00 1.7 AU (250,000,000 km; 160,000,000 mi) 1.7 AU (250,000,000 km; 160,000,000 mi)
2019-11-12[15] 2009 VZ39 5–16 0.043 430,000,000 -1.453 -8.42 2.9 AU (430,000,000 km; 270,000,000 mi) 1.2 AU (180,000,000 km; 110,000,000 mi)
2019-11-13[40] 2010 VP139 13–41 0.046 56,000,000 -2.556 -8.41 1.7 AU (250,000,000 km; 160,000,000 mi) 1.7 AU (250,000,000 km; 160,000,000 mi)
2019-11-13[40] 2010 VP139 13–41 0.046 4,000,000,000 3.632 -10.1 1.7 AU (250,000,000 km; 160,000,000 mi) 1.7 AU (250,000,000 km; 160,000,000 mi)
2019-11-14[15] 2009 VZ39 5–16 0.043 29,000,000 0.995 -7.78 2.9 AU (430,000,000 km; 270,000,000 mi) 1.2 AU (180,000,000 km; 110,000,000 mi)
2019-11-16[41] 2008 VS4[note3 19] 29–87 0.083 5,600,000,000 3.255 -7.62 1.8 AU (270,000,000 km; 170,000,000 mi) 4.2 AU (630,000,000 km; 390,000,000 mi)
2019-11-16[15] 2009 VZ39 5–16 0.043 100,000,000 1.284 -7.90 2.9 AU (430,000,000 km; 270,000,000 mi) 1.2 AU (180,000,000 km; 110,000,000 mi)
2019-11-17[41] 2008 VS4 29–87 0.083 1,100,000,000 2.834 -7.02 1.8 AU (270,000,000 km; 170,000,000 mi) 4.2 AU (630,000,000 km; 390,000,000 mi)
2019-11-19[42] 2008 XK[note3 20] 8–25 0.087 910,000,000 4.019 -8.84 3.4 AU (510,000,000 km; 320,000,000 mi) 2.4 AU (360,000,000 km; 220,000,000 mi)
2019-11-21[43] 2017 WF30[note3 21] 10–31 0.17 1,800,000,000 -2.868 -8.06 0.33 AU (49,000,000 km; 31,000,000 mi) 0.26 AU (39,000,000 km; 24,000,000 mi)
2019-11-23[44] 2017 RZ17 180–590 0.96 290,000,000 1.115 -4.27 3.4 AU (510,000,000 km; 320,000,000 mi) 3.3 AU (490,000,000 km; 310,000,000 mi)
2019-11-23[45] 2007 YM 12–39 0.13 280,000,000 -0.878 -7.81 2.5 AU (370,000,000 km; 230,000,000 mi) 2.5 AU (370,000,000 km; 230,000,000 mi)
2019-12-06[42] 2008 XK 8–25 0.087 200,000,000 -2.287 -7.98 3.6 AU (540,000,000 km; 330,000,000 mi) 2.5 AU (370,000,000 km; 230,000,000 mi)
2019-12-06[43] 2017 WF30 10–31 0.17 220,000,000 2.469 -7.72 0.39 AU (58,000,000 km; 36,000,000 mi) 0.32 AU (48,000,000 km; 30,000,000 mi)
2019-12-08[12] 2010 XC 3–12 0.058 5,900,000,000 3.630 -10.2 2.5 AU (370,000,000 km; 230,000,000 mi) 2.5 AU (370,000,000 km; 230,000,000 mi)
2019-12-09[12] 2010 XC 3–12 0.058 710,000,000 3.253 -9.51 2.5 AU (370,000,000 km; 230,000,000 mi) 2.5 AU (370,000,000 km; 230,000,000 mi)
2019-12-14[41] 2008 VS4 29–87 0.083 53,000,000 1.138 -6.32 1.7 AU (250,000,000 km; 160,000,000 mi) 4.1 AU (610,000,000 km; 380,000,000 mi)
2019-12-15[46] 2014 JT79[note3 22] 11–34 6.8 (2.8) 0 (1,300,000,000) N/A (0.741) N/A (-8.10) 0.94 AU (141,000,000 km; 87,000,000 mi) 0.94 AU (141,000,000 km; 87,000,000 mi)
2019-12-15[46] 2014 JT79 11–34 6.8 (2.8) 0 (400,000,000) N/A (0.733) N/A (-7.86) 0.94 AU (141,000,000 km; 87,000,000 mi) 0.94 AU (141,000,000 km; 87,000,000 mi)
2019-12-16[47] 2010 WW8 9–30 0.066 120,000,000 1.760 -7.51 0.46 AU (69,000,000 km; 43,000,000 mi) 0.97 AU (145,000,000 km; 90,000,000 mi)
2019-12-17[46] 2014 JT79 11–34 6.8 (2.8) 0 (150,000,000) N/A (-0.905) N/A (-7.75) 0.94 AU (141,000,000 km; 87,000,000 mi) 0.94 AU (141,000,000 km; 87,000,000 mi)
2019-12-18[48] 2005 TM173[note3 23] 28–130 1.9 5,300,000,000 3.220 -8.03 3.4 AU (510,000,000 km; 320,000,000 mi) 5.4 AU (810,000,000 km; 500,000,000 mi)
2019-12-18[48] 2005 TM173 28–130 1.9 500,000,000 -2.460 -6.84 3.4 AU (510,000,000 km; 320,000,000 mi) 5.4 AU (810,000,000 km; 500,000,000 mi)
2019-12-18[48] 2005 TM173 28–130 1.9 1,300,000,000 -2.461 -7.25 3.4 AU (510,000,000 km; 320,000,000 mi) 5.4 AU (810,000,000 km; 500,000,000 mi)
2019-12-19[46] 2014 JT79 11–34 6.8 (2.8) 0 (91,000,000) N/A (-1.732) N/A (-7.87) 0.95 AU (142,000,000 km; 88,000,000 mi) 0.95 AU (142,000,000 km; 88,000,000 mi)
2019-12-24[46] 2014 JT79 11–34 6.8 (2.8) 0 (710,000,000) N/A (-3.598) N/A (-9.23) 0.96 AU (144,000,000 km; 89,000,000 mi) 0.96 AU (144,000,000 km; 89,000,000 mi)
2019-12-25[42] 2008 XK 8–25 0.087 260,000,000 3.252 -8.39 3.7 AU (550,000,000 km; 340,000,000 mi) 2.6 AU (390,000,000 km; 240,000,000 mi)
2019-12-26[49] 2016 RP41 68–210 0.76 590,000,000 2.440 -6.39 1.2 AU (180,000,000 km; 110,000,000 mi) 1.1 AU (160,000,000 km; 100,000,000 mi)
2019-12-28[50] 2010 GD37 1000–3100 3.3 1,400,000,000 -0.862 -3.38 2.2 AU (330,000,000 km; 200,000,000 mi) Not listed
2019-12-28[14] 2015 HV182 92–300 1.0 450,000,000 -0.451 -5.91 2.3 AU (340,000,000 km; 210,000,000 mi) 2.3 AU (340,000,000 km; 210,000,000 mi)
2019-12-29[11] 2016 AZ193 10–35 0.16 3,300,000,000 2.902 -8.39 1.6 AU (240,000,000 km; 150,000,000 mi) 1.7 AU (250,000,000 km; 160,000,000 mi)

Notes

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  1. ^ This is a measurement of how far off of the "best fit" orbit the asteroid would have to have for it to hit at this time. Further values from 0 mean that the measured positions of the asteroid used to calculate its orbit would need to be highly inaccurate for it to hit Earth. For reference, 1.0/-1.0=31.7% odds the observations would be this inaccurate, 2.0/-2.0=4.6% odds, 3.0/-3.0=0.27% odds.
  2. ^ 2014 HN198 was ruled out as a potential impactor after further observations from Cerro Tololo, improving the orbit enough to determine that it won't hit Earth.
  3. ^ 2010 DG77 has a cumulative probability of 1 in 195,000,000 (Palermo scale -6.89) of impacting Earth in 2019.
  4. ^ This listing is compiled from 3 separate virtual impacts at the exact same time, and simply spread out by several sigma. The probabilities are updated to reflect the duplicated listings.
  5. ^ 2008 EL68 has a cumulative probability of 1 in 703,000 (Palermo scale -6.14) of impacting Earth in 2019.
  6. ^ 2016 AZ193 has a cumulative probability of 1 in 223,000,000 (Palermo scale -8.00) of impacting Earth in 2019.
  7. ^ 2010 XC has a cumulative probability of 1 in 16,600,000 (Palermo scale -7.90) of impacting Earth in 2019.
  8. ^ 2015 HV182 has a cumulative probability of 1 in 140,000,000 (Palermo scale -5.39) of impacting Earth in 2019.
  9. ^ 2009 VZ39 has a cumulative probability of 1 in 16,200,000 (Palermo scale -7.53) of impacting Earth in 2019.
  10. ^ 2011 CF66 has a cumulative probability of 1 in 50,800,000 (Palermo scale -7.75) of impacting Earth in 2019.
  11. ^ 2008 EK68 has a cumulative probability of 1 in 47,600,000 (Palermo scale -8.08) of impacting Earth in 2019.
  12. ^ 2008 EM68 has a cumulative probability of 1 in 427,000 (Palermo scale -5.42) of impacting Earth in 2019.
  13. ^ 2014 HG196 has a cumulative probability of 1 in 539,000,000 (Palermo scale -8.09) of impacting Earth in 2019.
  14. ^ 2008 US has a cumulative probability of 1 in 698,000 (Palermo scale -7.38) of impacting Earth in 2019.
  15. ^ 2014 LY21 has a cumulative probability of 1 in 213,000 (Palermo scale -5.39) of impacting Earth in 2019.
  16. ^ This listing is compiled from 16 separate virtual impacts at the exact same time, and simply spread out by several sigma. The probabilities are updated to reflect the duplicated listings.
  17. ^ 2014 HR197 has a cumulative probability of 1 in 399,000,000 (Palermo scale -8.16) of impacting Earth in 2019.
  18. ^ 2010 VP139 has a cumulative probability of 1 in 5,950,000 (Palermo scale -7.56) of impacting Earth in 2019.
  19. ^ 2008 VS4 has a cumulative probability of 1 in 50,100,000 (Palermo scale -6.30) of impacting Earth in 2019.
  20. ^ 2008 XK has a cumulative probability of 1 in 101,000,000 (Palermo scale -7.68) of impacting Earth in 2019.
  21. ^ 2017 WF30 has a cumulative probability of 1 in 196,000,000 (Palermo scale -7.67) of impacting Earth in 2019.
  22. ^ 2014 JT79 had a cumulative probability of 1 in 44,800,000 (Palermo scale -7.56) of impacting Earth in 2019. It was ruled out as a potential impactor after further observations from Cerro Tololo, improving the orbit enough to determine that it won't hit Earth.
  23. ^ 2005 TM173 has a cumulative probability of 1 in 338,000,000 (Palermo scale -6.67) of impacting Earth in 2019.

See also

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References

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  1. ^ "JPL Small-Body Database Browser: (2019 FC1)". Jet Propulsion Laboratory.
  2. ^ "JPL Small-Body Database Browser". JPL Solar System Dynamics. NASA Jet Propulsion Laboratory.
  3. ^ "MPC Database". IAU Minor Planet Center. International Astronomical Union. Retrieved 1 January 2021.
  4. ^ Guido, Ernesto. "Small Asteroid 2019 MO (NEOCP A10eoM1) impacted Earth on June 22". Comets & Asteroids news (remanzacco). Retrieved 28 December 2019.
  5. ^ Gal, Roy. "Breakthrough: UH team successfully locates incoming asteroid". University of Hawaii. Retrieved 26 June 2019.
  6. ^ "Sentry: 2005 NX55 (archived)" (computed on 2017-04-09). Archived from the original on 2018-12-30.
  7. ^ "Sentry: 2010 JA43 (archived)" (computed on 2018-10-03). Archived from the original on 2018-12-30.
  8. ^ "Sentry: 2014 HN198 (archived)" (computed on 2017-04-07). Archived from the original on 2018-12-30.
  9. ^ a b c "Sentry: 2010 DG77 (archived)" (computed on 2017-04-07). Archived from the original on 2018-12-30.
  10. ^ a b c d e f g h i j "Sentry: 2008 EL68 (archived)" (computed on 2017-04-09). Archived from the original on 2018-12-30.
  11. ^ a b c d "Sentry: 2016 AZ193 (archived)" (computed on 2017-04-06). Archived from the original on 2018-01-28.
  12. ^ a b c "Sentry: 2010 XC (archived)" (computed on 2017-04-07). Archived from the original on 2018-01-28. {{cite web}}: Check |url= value (help)
  13. ^ a b c "CNEOS Fireball and Bolide Data".
  14. ^ a b c d e f "Sentry: 2015 HV182 (archived)" (computed on 2017-04-06). Archived from the original on 2017-04-14.
  15. ^ a b c d e f "Sentry: 2009 VZ39 (archived)" (computed on 2017-04-06). Archived from the original on 2018-12-30.
  16. ^ a b "Sentry: 2011 CF66 (archived)" (computed on 2017-04-07). Archived from the original on 2018-01-28.
  17. ^ "Sentry: 2008 JD33 (archived)" (computed on 2017-04-06). Archived from the original on 2018-01-29. {{cite web}}: Check |url= value (help)
  18. ^ a b c d "Sentry: 2008 EK68 (archived)" (computed on 2017-04-06). Archived from the original on 2018-01-29. {{cite web}}: Check |url= value (help)
  19. ^ a b c d e f g h i j "Sentry: 2008 EM68" (computed on 2017-04-07). Archived from the original on 2018-01-28.
  20. ^ a b "Sentry: 2014 HG196 (archived)" (computed on 2017-04-08). Archived from the original on 2018-01-29.
  21. ^ "Sentry: 2014 MV67 (archived)" (computed on 2017-04-06). Archived from the original on 2018-01-28.
  22. ^ a b "Sentry: 2008 US (archived)" (computed on 2017-04-07). {{cite web}}: Check |url= value (help)[dead link‍]
  23. ^ "Sentry: 2017 UK52 (archived)" (computed on 2017-12-15). Archived from the original on 2018-12-30.
  24. ^ "Sentry: 2014 MA68 (archived)" (computed on 2017-04-07). Archived from the original on 2018-12-30.
  25. ^ a b c d e "Sentry: 2014 LY21 (archived)" (computed on 2017-04-08). Archived from the original on 2018-12-30.
  26. ^ "Sentry: 2014 CH13 (archived)" (computed on 2017-04-20). Archived from the original on 2018-12-30.
  27. ^ "Sentry: 2011 AE3 (archived)" (computed on 2017-04-09). Archived from the original on 2018-12-30.
  28. ^ "Sentry: 2004 ME6 (archived)" (computed on 2017-04-12). Archived from the original on 2018-12-30.
  29. ^ "Sentry: 2012 BL14 (archived)" (computed on 2017-04-70). Archived from the original on 2018-12-30.
  30. ^ "Sentry: 2015 ME131 (archived)" (computed on 2017-04-08). Archived from the original on 2017-07-31.
  31. ^ "Sentry: 2015 HW182 (archived)" (computed on 2017-04-14). Archived from the original on 2018-01-29. {{cite web}}: Check |url= value (help)
  32. ^ "Sentry: 2006 QV89 (archived)" (computed on 2017-04-08). Archived from the original on 2018-12-29.
  33. ^ "Sentry: 2009 FZ4 (archived)" (computed on 2017-04-11). Archived from the original on 2018-01-29.
  34. ^ "Sentry: 2007 FT3 (archived)" (computed on 2017-04-11). Archived from the original on 2018-12-30. {{cite web}}: Check |url= value (help)
  35. ^ "Sentry: 2008 SH148 (archived)" (computed on 2017-04-08). Archived from the original on 2018-12-30.
  36. ^ "Sentry: 2006 SF281 (archived)" (computed on 2017-04-08). Archived from the original on 2018-12-30. {{cite web}}: Check |url= value (help)
  37. ^ a b c "Sentry: 2014 HR197 (archived)" (computed on 2017-04-09). Archived from the original on 2018-01-28.
  38. ^ "Sentry: 2008 VL (archived)" (computed on 2017-04-08). Archived from the original on 2018-01-29.
  39. ^ "Sentry: 2010 VR139 (archived)" (computed on 2017-04-07). Archived from the original on 2018-12-29.
  40. ^ a b c d "Sentry: 2010 VP139 (archived)" (computed on 2017-04-07). Archived from the original on 2018-01-29. {{cite web}}: Check |url= value (help)
  41. ^ a b c "Sentry: 2008 VS4 (archived)" (computed on 2017-04-08). Archived from the original on 2017-10-20.
  42. ^ a b c "Sentry: 2008 XK (archived)" (computed on 2017-04-07). Archived from the original on 2018-12-30.
  43. ^ a b "Sentry: 2017 WF30 (archived)" (computed on 2018-01-07). Archived from the original on 2018-12-30.
  44. ^ "Sentry: 2017 RZ17 (archived)" (computed on 2018-02-08). Archived from the original on 2018-12-30.
  45. ^ "Sentry: 2007 YM (archived)" (computed on 2017-04-08). Archived from the original on 2017-10-20.
  46. ^ a b c d e "Sentry: 2014 JT79 (archived)" (computed on 2017-04-06). Archived from the original on 2018-01-29.
  47. ^ "Sentry: 2010 WW8 (archived)" (computed on 2017-04-09). Archived from the original on 2018-01-28.
  48. ^ a b c "Sentry: 2005 TM173 (archived)" (computed on 2017-04-08). Archived from the original on 2018-12-30.
  49. ^ "Sentry: 2016 RP41 (archived)" (computed on 2017-04-08). Archived from the original on 2018-12-30.
  50. ^ "Sentry: 2010 GD37 (archived)" (computed on 2018-10-03). Archived from the original on 2018-12-30.
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