2021 AF8

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5170238105 ± 1.04e-08
Semi-major axis (a)2.0154860612 AU ± 4.02e-08
Inclination (i)9.71035688° ± 1.55e-06
Long. of Asc. Node (Ω)42.45480050° ± 4.62e-06
Arg. of Perihelion (ω)168.96245187° ± 5.07e-06
Mean Anomaly (M)215.35628626° ± 1.75e-05
Mean Motion (n)0.3444629985°/day ± 1.03e-08
Perihelion dist (q)0.97343178 AU ± 2.86e-08
Aphelion dist (Q)3.05754034 AU ± 6.45e-08
Orbital Period2.86134153 yr ± 8.57e-08
Physical Parameters
H (abs. magnitude)20.22
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.266″
Uncertainty0
Orbit TypeApollo
MOID0.027279 AU
Observations Used368
Radar Obs Used2
Oppositions5
Arc Total2014-2024
First Observation Used2014-12-01
Last Observation Used2024-08-03
Observations (397)
Date Type RA Dec Mag Band Observatory
2021-04-23 03:08:16 C 06 10 28.98 +56 24 49.2 V 703
2021-04-23 03:16:04 C 06 10 25.70 +56 24 31.8 V 703
2021-04-23 03:41:06 C 06 10 15.09 +56 23 37.0 V 291
2021-04-23 03:43:21 C 06 10 14.14 +56 23 31.9 V 291
2021-04-23 03:45:35 C 06 10 13.21 +56 23 26.7 V 291
2021-04-23 19:43:58 C 06 03 43.44 +55 50 01.8 V 033
2021-04-23 19:44:28 C 06 03 43.21 +55 50 00.5 V 033
2021-04-23 19:44:57 C 06 03 42.99 +55 49 59.2 V 033
2021-04-24 20:51:50 C 05 52 11.48 +54 46 29.0 V 033
2021-04-24 20:52:19 C 05 52 11.24 +54 46 27.5 V 033
2021-04-24 20:52:49 C 05 52 10.98 +54 46 25.8 V 033
2021-04-24 23:01:39 C 05 51 08.15 +54 39 47.8 V Z80
2021-04-24 23:11:39 C 05 51 03.43 +54 39 15.4 V Z80
2021-04-24 23:21:39 C 05 50 58.61 +54 38 43.1 V Z80
2021-04-25 19:54:41 C 05 40 08.39 +53 32 47.3 V 033
2021-04-25 19:56:13 C 05 40 07.54 +53 32 41.1 V 033
2021-04-25 19:56:49 C 05 40 07.21 +53 32 38.9 V 033
2021-04-25 19:57:26 C 05 40 06.85 +53 32 36.2 V 033
2021-04-26 20:18:30 C 05 25 36.91 +51 51 19.5 V 033
2021-04-26 20:19:01 C 05 25 36.59 +51 51 16.9 V 033
2021-04-26 20:19:31 C 05 25 36.28 +51 51 14.5 V 033
2021-04-26 20:20:07 C 05 25 35.90 +51 51 11.5 V 033
2021-04-27 20:00:34 C 05 09 34.85 +49 41 58.7 V 033
2021-04-27 20:01:03 C 05 09 34.50 +49 41 55.5 V 033
2021-04-27 20:01:33 C 05 09 34.15 +49 41 52.5 V 033
2021-05-15 08:01:28 S 23 18 16.826 -53 07 16.61 L C51
2021-05-15 11:09:36 S 23 17 03.365 -53 15 22.25 L C51
2021-05-15 14:17:55 S 23 15 50.866 -53 23 13.67 L C51
2021-05-15 15:51:59 S 23 15 15.026 -53 27 05.90 L C51
2021-05-25 09:25:31 C 22 16 17.63 -58 08 48.3 V W88
2021-05-25 09:35:09 C 22 16 15.68 -58 08 54.8 V W88
2021-06-05 05:23:38 C 21 38 12.18 -59 36 58.1 q Y00
2021-06-05 05:35:41 C 21 38 10.29 -59 37 01.8 q Y00
2021-06-05 05:46:24 C 21 38 08.63 -59 37 04.6 q Y00
2021-06-13 06:03:17 C 21 12 50.61 -59 51 14.4 q Y00
2021-06-13 06:15:27 C 21 12 48.75 -59 51 14.5 q Y00
2021-06-13 06:29:01 C 21 12 46.66 -59 51 14.4 q Y00
2021-06-17 05:12:41 C 21 00 25.98 -59 43 44.8 q Y00
2021-06-17 05:27:05 C 21 00 23.84 -59 43 42.9 q Y00
2021-06-17 05:41:37 C 21 00 21.67 -59 43 42.2 q Y00
2021-07-09 04:12:41 C 20 00 16.08 -56 12 47.9 q Y00
2021-07-09 04:28:47 C 20 00 14.36 -56 12 37.4 q Y00
2021-07-09 04:44:58 C 20 00 12.87 -56 12 26.3 q Y00
2024-08-03 12:25:17 C 23 19 57.095 -25 18 38.18 X F52
2024-08-03 12:38:40 C 23 19 56.254 -25 18 43.30 X F52
2024-08-03 12:52:02 C 23 19 55.421 -25 18 48.86 X F52
2024-08-03 13:05:24 C 23 19 54.604 -25 18 54.20 X F52
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-05-03 15:00:00 133632.8 0.5 Hz 8560 -14 -14
2021-05-03 16:00:00 22859278 1 us 8560 -14 -14
2021-05-05 03:50:00 -81043.705 0.8 Hz 7159.45 -47 -43
2021-05-05 23:20:00 -142285.686 0.6 Hz 7159.45 -47 -43
Station codes
-47 DSS-47 ATCA (W196) -43 DSS-43 Tidbinbilla (70-m) -14 DSS-14 Goldstone (70-m)