2024 PT5

2024 PT ₅

Discovery
Discovered by	ATLAS South Africa, Sutherland
Discovery date	7 August 2024
Designations
MPC designation	2024 PT 5
Alternative designations	A119q0V
Minor planet category	NEO Apollo
Orbital characteristics
Epoch 2024-Oct-17 (JD 2460600.5)
Uncertainty parameter 1
Observation arc	37 days
Aphelion	1.03404606 AU (Q)
Perihelion	0.990564100 AU (q)
Semi-major axis	1.01230508 AU (a)
Eccentricity	0.02147671 (e) (Geocentric hyperbolic e=1.1)
Orbital period (sidereal)	1.01853352 years
Mean anomaly	323.6773° (M)
Inclination	1.52051° (i)
Longitude of ascending node	305.5723° (Ω)
Time of perihelion	2024-Nov-23.5354
Argument of perihelion	116.2485° (ω)
Earth MOID	0.00607823 AU (909,290 km; 2.36546 LD)
Jupiter MOID	3.95662 AU (591,902,000 km)
Physical characteristics
Dimensions	~ 11 m (36 ft) 5–42 meters
Absolute magnitude (H)	27.6

2024 PT₅ is a near-Earth object roughly 11 meters (36 ft) in diameter discovered by ATLAS South Africa, Sutherland on 7 August 2024, the day before approaching Earth at 568,500 km (353,200 mi).

Orbit

The object orbits the Sun but makes slow close approaches to the Earth–Moon system. Between 29 September (19:54 UTC) and 25 November 2024 (16:43 UTC) (a period of 1 month and 27 days) it will pass just outside Earth's Hill sphere (roughly 0.01 AU [1.5 million km; 0.93 million mi]) at a low relative velocity (in the range 0.002 km/s (4.5 mph) – 0.439 km/s [980 mph]) and will become temporarily captured by Earth's gravity, with a geocentric orbital eccentricity of less than 1 and negative geocentric orbital energy. The most recent closest approach to Earth was 8 August 2024 at roughly 567,000 km (352,000 mi) when it had a relative velocity of 1.37 km/s (3,100 mph).

On 18 August 2024 CNEOS removed 2024 PT₅ from their Sentry Risk Table, having determined it poses no risk of a potential Earth impact.

Animation of 2024 PT5

Around the Earth – Close approach

   2024 PT5  ·    Earth  ·    Moon

Entering and Exiting Geocentric Orbit

Epoch	Earth distance	Geocentric eccentricity	Apogee	Orbital period
2024-Sep-29	0.0230 AU (3.44 million km)	1.016	$\infty$	$\infty$
2024-Sep-30	0.0232 AU (3.47 million km)	0.997	2.9 AU (430 million km)	99.84 years (36,468 d)
2024-Oct-24	0.0268 AU (4.01 million km)	0.614	0.028 AU (4.2 million km)	1.35 years (493 d)
2024-Nov-25	0.0238 AU (3.56 million km)	0.983	0.72 AU (108 million km)	127.24 years (46,473 d)
2024-Nov-26	0.0236 AU (3.53 million km)	1.009	$\infty$	$\infty$

See also

• 1991 VG – near-Earth asteroid temporarily captured by Earth after its discovery in 1991
• 2006 RH120 – the first temporary Earth satellite discovered in situ 2006
• 2020 CD3 – another temporary Earth satellite discovered in 2020
• 2022 NX1 – another temporary Earth satellite discovered in 2022
• 2020 SO – a suspected near-Earth object identified as a rocket booster from the Surveyor 2 mission
• Arjuna asteroid