(367789) 2011 AG5
(367789) 2011 AG5, provisional designation 2011 AG5, is a sub-kilometer asteroid, classified as near-Earth object and potentially hazardous asteroid of the Apollo group. It has a diameter of about 140 meters (460 ft). It was removed from the Sentry Risk Table on 21 December 2012 and as such it now has a rating of 0 on the Torino Scale. It was recovered in December 2022 extending the observation arc from 4.8 years to 14 years. As of 2023, the distance between the orbits of Earth and 2011 AG5 is 0.0004 AU (60,000 km; 0.16 LD)
| Date | JPL Horizons nominal geocentric distance (AU) |
uncertainty region (3-sigma) |
|---|---|---|
| 2023-Feb-03 08:51 ± 00:01 | 0.01215 AU (1.818 million km) | ±112 km |
| 2040-Feb-04 08:29 ± 00:06 | 0.00725 AU (1.085 million km) | ±5800 km |
Animation of 2011 AG5 rotating in radar images by the Goldstone Solar System Radar on 4 February 2023 | |
| Discovery | |
|---|---|
| Discovered by | Mount Lemmon Srvy. |
| Discovery site | Mount Lemon Obs. |
| Discovery date | 8 January 2011 |
| Designations | |
| (367789) 2011 AG5 | |
| 2011 AG5 | |
| Apollo · NEO · PHA | |
| Orbital characteristics | |
| Epoch 2023-Feb-25 (JD 2460000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 14.2 yr (5,201 days) |
| Earliest precovery date | 3 October 2008 |
| Aphelion | 1.978 AU |
| Perihelion | 0.87066 AU |
| 1.424 AU | |
| Eccentricity | 0.3887 |
| 1.7 yr (620.9 days) | |
| 348.2° | |
| 0° 34m 33.222s / day | |
| Inclination | 3.6946° |
| 135.6° | |
| 2023-Mar-17 | |
| 54.02° | |
| Earth MOID | 0.00038 AU (57,000 km; 0.15 LD) |
| Physical characteristics | |
| Dimensions | 140 m |
| Mass | 4×109 kg (assumed) |
| 21.9 | |
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