• Source: 2024 PT5

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.




Physical properties


Its reflectance spectrum in the range 350-2350 nm obtained with LDT/IRTF is inconsistent with artificial objects and asteroids, its surface is quite red, well matched by samples of the Moon, both Maria and Highlands. However, its visible spectrum obtained with GTC is consistent with that of an Sv-type asteroid or perhaps lunar ejecta. Its color indices and the spectrum obtained with Gemini North best matches lunar rock samples followed by S-complex asteroids.




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 1966 Surveyor 2 mission
Arjuna asteroid




References

Kata Kunci Pencarian:

• 2024 PT5
• PT5
• 2024 in science
• Arjuna asteroid
• Claimed moons of Earth
• Quasi-satellite
• Apollo asteroid
• Sleeping at Last
• Horseshoe orbit
• Earth trojan