Discovery[1][2] | |
---|---|
Discovered by | K. Sárneczky |
Discovery site | Piszkéstető Stn. |
Discovery date | 24 March 2022 |
Designations | |
2022 FD1 | |
Sar2594[3] | |
NEO · Apollo[4][1] | |
Orbital characteristics[4] | |
Epoch 21 January 2022 (JD 2459600.5) | |
Uncertainty parameter 6 | |
Observation arc | 8.4 hours[1] |
Aphelion | 2.653 AU |
Perihelion | 0.719 AU |
1.686 AU | |
Eccentricity | 0.5735 |
2.19 yr (800 days) | |
309.949° | |
0° 27m 0.765s / day | |
Inclination | 9.446° |
4.374° | |
256.448° | |
Earth MOID | 0.000168 AU (25,100 km) |
Jupiter MOID | 2.51 AU |
Physical characteristics | |
2–4 m[3] | |
31.02±0.28[4] | |
2022 FD1 is a small, metre-sized Apollo near-Earth asteroid that was eclipsed by Earth and made its closest approach 8,470 km (5,260 mi) from Earth's surface on 25 March 2022.[a] It entered Earth's shadow at 8:10 UTC and became invisible until egress at 8:45 UTC.[5] Its brightness from Earth reached a peak apparent magnitude of 13 shortly before closest approach at 09:13 UTC.[6] By that time, the asteroid was moving at a speed of 18.5 km/s (11.5 mi/s) relative to Earth and was located in the far Southern hemisphere sky.[4][6]
2022 FD1 was discovered on 24 March 2022, by astronomer Krisztián Sárneczky at Konkoly Observatory's Piszkéstető Station in Budapest, Hungary.[2] It was his next near-Earth asteroid discovery after the impactor 2022 EB5 from early March 2022.[3]
Parameter | Epoch | Period (p) |
Aphelion (Q) |
Perihelion (q) |
Semi-major axis (a) |
Eccentricity (e) |
Inclination (i) |
---|---|---|---|---|---|---|---|
Units | (days) | AU | (°) | ||||
Pre-flyby | 2021 March 13[4] | 928 | 2.863 | 0.790 | 1.863 | 0.567 | 9.440 |
Post-flyby | 2022-Dec-17[1][6] | 795 | 2.610 | 0.751 | 1.681 | 0.553 | 4.490 |
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