2022 AP7
| Discovery | |
|---|---|
| Discovery site | Cerro Tololo Observatory[1] |
| Designations | |
| NEO · Apollo · PHA[2] | |
| Orbital characteristics[2] | |
| Epoch 9 August 2022 (JD 2459800.5) | |
| Uncertainty parameter 1 | |
| Observation arc | 1774 days |
| Aphelion | 5.015 AU (750.2 Gm) |
| Perihelion | 0.83298 AU (124.612 Gm) |
| 2.9239 AU (437.41 Gm) | |
| Eccentricity | 0.71512 |
| 5.0000 yr[3] | |
| 25.85718° | |
| Inclination | 13.8348° |
| 192.38° | |
| 30 March 2022 | |
| 113.59° | |
| Earth MOID | 0.04716 AU (7,055,000 km) |
| Jupiter MOID | 1.18855 AU (177.805 Gm) |
| Physical characteristics | |
| Dimensions | 1100-2300 m[4] |
| 17.1[4] | |
2022 AP7 is a potentially hazardous asteroid approximately 1.5 kilometers across. It is said to be the largest potentially hazardous object identified in the eight years prior to its 2022 discovery.[5][a] The discovery was made with twilight observations using the Dark Energy Camera at Cerro Tololo Observatory in Chile.[1] The asteroid does not currently make notable close approaches to Earth because it is in a near resonance with Earth, in a highly elliptic orbit, and takes 5.0 years to orbit the Sun.[3] In March 2022 the asteroid was 1.4 AU (210 million km) from Earth and will not come that close again until March 2027.[7] The asteroid is not risk listed. Over thousands of years close approaches to Jupiter and Mars will change the orbit.
Notes
References
- ^ a b Space.com
- ^ a b 2022 AP7 at Minor Planet Center, retrieved October 31, 2022
- ^ a b "JPL Small-Body Database Browser: (2022 AP7)". Jet Propulsion Laboratory. Retrieved 2021-10-31.
- ^ a b Sheppard et al.
- ^ CNN
- ^ 2014 LJ21 at Minor Planet Center, accessed October 31, 2022
- ^ "Horizons Batch for 2022 to 2050". JPL Horizons. Retrieved 2022-10-31. (text search: "00:00 1.4")
Sources
- Isaac Schultz (October 31, 2022). "Scientists Find Potentially Hazardous Asteroid Hiding in the Sun's Glare". Gizmodo.
At nearly 1.5 kilometers wide, it's the largest such asteroid discovered in eight years.
- Robin George Andrews (October 31, 2022). "'Planet Killer' Asteroid Spotted That Poses Distant Risk to Earth". The New York Times.
- Ashley Strickland. "'Planet killer' asteroid spotted hiding in the sun's glare". CNN.
- Scott S. Sheppard; et al. (September 29, 2022), "A Deep and Wide Twilight Survey for Asteroids Interior to Earth and Venus", The Astronomical Journal, 164 (4), American Astronomical Society, doi:10.3847/1538-3881/ac8cff
{{citation}}: CS1 maint: unflagged free DOI (link) - Tereza Pultarova (October 31, 2022). "'Planet killer' asteroid found hiding in sun's glare may one day hit Earth". Space.com.
External links
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