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
2014-12-01 08:02:45 C 05 00 37.161 +31 20 30.97 V F51
2015-01-21 06:47:42 C 03 51 23.448 +30 17 03.21 V F51
2015-01-21 07:05:44 C 03 51 23.061 +30 17 01.29 V F51
2015-01-21 07:41:43 C 03 51 22.319 +30 16 57.57 V F51
2018-01-07 05:01:18 C 05 36 13.897 +38 57 04.46 V G96
2018-01-25 04:12:42 C 05 04 41.691 +38 41 40.65 V G96
2018-06-16 22:51:48 C 10 06 01.425 +12 50 51.59 V W84
2018-06-16 23:03:35 C 10 06 03.348 +12 50 33.34 V W84
2018-06-16 23:15:09 C 10 06 05.242 +12 50 15.15 V W84
2018-06-16 23:26:46 C 10 06 07.122 +12 49 57.31 V W84
2020-12-25 12:41:39 C 09 27 52.097 +35 18 30.99 V F52
2020-12-27 07:28:19 C 09 29 12.80 +35 45 49.9 V G96
2020-12-27 07:35:42 C 09 29 12.99 +35 45 54.8 V G96
2020-12-27 07:50:29 C 09 29 13.43 +35 46 03.8 V G96
2020-12-27 10:55:43 C 09 29 19.022 +35 48 08.16 V F51
2020-12-29 13:38:34 C 09 30 45.381 +36 22 28.32 V F52
2020-12-29 14:26:48 C 09 30 46.508 +36 23 02.16 V F51
2020-12-29 14:37:56 C 09 30 46.779 +36 23 09.49 V F52
2020-12-29 14:46:46 C 09 30 46.946 +36 23 15.77 V F51
2021-01-05 12:34:27 C 09 34 25.528 +38 29 09.18 V F52
2021-01-05 12:53:05 C 09 34 25.745 +38 29 24.39 V F52
2021-01-13 10:19:47 C 09 36 06.708 +41 18 47.51 V F52
2021-01-14 07:37:13 C 09 36 06.27 +41 39 23.5 V G96
2021-01-14 07:45:36 C 09 36 06.24 +41 39 31.6 V G96
2021-01-14 07:53:57 C 09 36 06.21 +41 39 39.9 V G96
2021-01-14 08:02:18 C 09 36 06.13 +41 39 48.4 V G96
2021-01-17 09:13:02 C 09 35 46.049 +42 52 59.51 U F52
2021-01-17 09:42:26 C 09 35 45.665 +42 53 30.16 U F52
2021-01-17 09:57:06 C 09 35 45.471 +42 53 45.96 U F52
2021-01-23 09:52:11 C 09 33 29.111 +45 26 13.54 U F51
2021-01-23 09:54:04 C 09 33 29.075 +45 26 15.64 U F51
2021-01-23 10:10:52 C 09 33 28.555 +45 26 34.19 U F51
2021-01-23 10:12:44 C 09 33 28.503 +45 26 36.38 U F51
2021-01-23 10:29:37 C 09 33 28.010 +45 26 55.13 U F51
2021-01-23 10:31:29 C 09 33 27.956 +45 26 57.43 U F51
2021-01-23 10:48:22 C 09 33 27.427 +45 27 16.04 U F51
2021-01-23 10:50:14 C 09 33 27.401 +45 27 17.94 U F51
2021-01-31 09:18:37 C 09 26 48.21 +48 59 13.8 V I52
2021-01-31 09:50:59 C 09 26 46.45 +48 59 49.5 V I52
2021-01-31 09:58:04 C 09 26 46.09 +48 59 57.2 V I52
2021-01-31 10:05:07 C 09 26 45.72 +49 00 04.4 V I52
2021-01-31 13:05:37 C 09 26 37.174 +49 03 30.91 U F51
2021-01-31 13:45:41 C 09 26 35.002 +49 04 14.59 U F51
2021-01-31 14:05:30 C 09 26 33.959 +49 04 35.94 U F51
2021-02-01 09:24:34 C 09 25 38.64 +49 26 14.8 V 695
2021-02-01 09:33:00 C 09 25 38.17 +49 26 24.2 V 695
2021-02-01 09:41:24 C 09 25 37.71 +49 26 33.5 V 695
2021-02-01 10:33:38 C 09 25 36.065 +49 27 35.88 U F51
2021-02-01 10:35:30 C 09 25 35.954 +49 27 38.05 U F51
2021-02-01 10:56:10 C 09 25 34.740 +49 28 01.31 U F51
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)