2021 RA1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5297140027 ± 3.58e-04
Semi-major axis (a)2.1550920444 AU ± 1.70e-03
Inclination (i)10.01280343° ± 4.62e-03
Long. of Asc. Node (Ω)341.23335537° ± 9.13e-04
Arg. of Perihelion (ω)337.12627754° ± 1.29e-03
Mean Anomaly (M)126.06681816° ± 5.73e-01
Mean Motion (n)0.3115398028°/day ± 3.69e-04
Perihelion dist (q)1.01350961 AU ± 1.11e-03
Aphelion dist (Q)3.29667448 AU ± 2.72e-03
Orbital Period3.16372507 yr ± 3.75e-03
Physical Parameters
H (abs. magnitude)25.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.403″
Uncertainty3
Orbit TypeApollo
MOID0.024556 AU
Observations Used66
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-01
Last Observation Used2021-09-16
Observations (67)
Date Type RA Dec Mag Band Observatory
2021-09-01 07:32:43 C 00 20 03.44 -11 16 04.5 V I41
2021-09-01 08:32:47 C 00 20 03.41 -10 53 01.9 V I41
2021-09-01 08:34:09 C 00 20 03.44 -10 52 31.0 V I41
2021-09-02 09:26:10 C 00 21 27.73 -02 17 21.5 o I41
2021-09-02 09:27:31 C 00 21 27.70 -02 16 56.7 o I41
2021-09-05 01:14:28 C 00 23 40.53 +12 36 18.3 o K88
2021-09-05 01:17:19 C 00 23 40.47 +12 36 48.7 o K88
2021-09-05 01:20:10 C 00 23 40.46 +12 37 17.7 o K88
2021-09-05 01:52:08 C 00 23 39.99 +12 42 46.3 o K88
2021-09-05 02:02:48 C 00 23 39.89 +12 44 34.1 o K88
2021-09-05 02:07:28 C 00 23 39.88 +12 45 21.4 o K88
2021-09-05 02:12:56 C 00 23 39.81 +12 46 17.3 o K88
2021-09-05 02:20:21 C 00 23 39.72 +12 47 33.0 o K88
2021-09-05 02:26:35 C 00 23 39.68 +12 48 37.1 o K88
2021-09-05 02:28:53 C 00 23 40.24 +12 49 08.2 V L01
2021-09-05 02:29:37 C 00 23 40.26 +12 49 15.8 V L01
2021-09-05 02:31:51 C 00 23 40.19 +12 49 38.4 V L01
2021-09-05 02:32:36 C 00 23 40.18 +12 49 45.9 V L01
2021-09-05 02:33:55 C 00 23 40.16 +12 49 59.9 V L01
2021-09-05 03:20:37 C 00 23 55.02 +12 58 15.9 X W34
2021-09-05 03:31:31 C 00 23 54.93 +13 00 07.8 X W34
2021-09-05 03:42:50 C 00 23 54.83 +13 02 04.5 X W34
2021-09-05 19:52:34 C 00 24 14.15 +15 33 56.9 o K88
2021-09-05 20:00:21 C 00 24 14.17 +15 35 05.7 o K88
2021-09-05 20:08:07 C 00 24 14.23 +15 36 16.2 o K88
2021-09-05 20:32:02 C 00 24 14.33 +15 39 36.9 V 033
2021-09-05 20:32:57 C 00 24 14.33 +15 39 45.1 V 033
2021-09-05 20:33:52 C 00 24 14.33 +15 39 52.9 V 033
2021-09-05 20:51:07 C 00 24 15.36 +15 42 42.1 V 104
2021-09-05 21:01:58 C 00 24 15.30 +15 44 18.1 V 104
2021-09-05 21:14:37 C 00 24 15.24 +15 46 10.6 V 104
2021-09-05 21:23:06 C 00 24 14.26 +15 47 13.4 V 246
2021-09-05 21:23:39 C 00 24 14.23 +15 47 18.5 V 246
2021-09-05 21:23:42 C 00 24 15.17 +15 47 05.5 V J95
2021-09-05 21:24:18 C 00 24 14.26 +15 47 24.5 V 246
2021-09-05 21:27:58 C 00 24 14.28 +15 47 57.8 V 246
2021-09-05 21:28:16 C 00 24 14.20 +15 47 59.4 V 246
2021-09-05 21:57:30 C 00 24 15.13 +15 52 03.6 V J95
2021-09-05 22:29:01 C 00 24 14.52 +15 57 00.5 V G15
2021-09-05 22:34:41 C 00 24 14.39 +15 57 49.2 V G15
2021-09-05 23:46:35 C 00 24 14.63 +16 08 08.5 X 958
2021-09-05 23:55:15 C 00 24 14.54 +16 09 23.8 X 958
2021-09-05 23:59:19 C 00 24 17.805 +16 10 36.48 V J04
2021-09-06 00:01:26 C 00 24 17.720 +16 10 55.06 V J04
2021-09-06 00:03:55 C 00 24 14.35 +16 10 37.8 X 958
2021-09-06 20:04:21 C 00 24 36.45 +18 46 34.9 V 033
2021-09-06 20:05:16 C 00 24 36.42 +18 46 41.1 V 033
2021-09-06 20:06:11 C 00 24 36.42 +18 46 47.7 V 033
2021-09-06 21:46:09 C 00 24 35.27 +18 59 04.9 o K88
2021-09-06 21:51:49 C 00 24 35.19 +18 59 45.1 o K88