2021 MC1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7917882135 ± 4.52e-07
Semi-major axis (a)2.1116193625 AU ± 6.27e-08
Inclination (i)11.72842492° ± 2.11e-05
Long. of Asc. Node (Ω)279.16777029° ± 3.73e-05
Arg. of Perihelion (ω)137.37992464° ± 9.91e-05
Mean Anomaly (M)132.42896164° ± 1.69e-05
Mean Motion (n)0.3212098264°/day ± 1.43e-08
Perihelion dist (q)0.43966404 AU ± 9.54e-07
Aphelion dist (Q)3.78357469 AU ± 9.61e-07
Orbital Period3.06848111 yr ± 1.37e-07
Physical Parameters
H (abs. magnitude)20.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.263″
Uncertainty0
Orbit TypeApollo
MOID0.105288 AU
Observations Used81
Oppositions2
Arc Total2021-2024
First Observation Used2021-06-11
Last Observation Used2024-07-16
Observations (87)
Date Type RA Dec Mag Band Observatory
2021-06-11 08:51:16 C 21 24 00.94 -12 11 12.2 V G96
2021-06-11 08:58:41 C 21 24 01.26 -12 11 06.6 V G96
2021-06-11 09:13:32 C 21 24 02.03 -12 10 55.4 V G96
2021-06-19 12:02:44 C 21 35 06.552 -09 23 36.58 U F51
2021-06-19 12:18:39 C 21 35 07.460 -09 23 20.57 U F51
2021-06-19 12:34:33 C 21 35 08.360 -09 23 04.70 U F51
2021-06-20 05:29:26 C 21 36 09.78 -09 05 36.6 V 807
2021-06-20 05:32:37 C 21 36 09.96 -09 05 33.3 V 807
2021-06-20 05:37:24 C 21 36 10.22 -09 05 28.6 V 807
2021-06-21 06:31:58 C 21 37 41.66 -08 39 01.9 V 807
2021-06-21 06:36:21 C 21 37 41.91 -08 38 57.2 V 807
2021-06-21 06:40:34 C 21 37 42.17 -08 38 52.6 V 807
2021-06-30 10:12:51 C 21 53 02.79 -03 35 20.5 V I52
2021-06-30 10:20:06 C 21 53 03.30 -03 35 07.2 V I52
2021-06-30 10:27:18 C 21 53 03.85 -03 34 54.9 V I52
2021-06-30 10:34:27 C 21 53 04.43 -03 34 42.1 V I52
2021-07-03 01:24:22 C 21 58 28.53 -01 33 36.8 V 033
2021-07-03 01:25:07 C 21 58 28.59 -01 33 35.3 V 033
2021-07-03 01:25:52 C 21 58 28.63 -01 33 33.7 V 033
2021-07-03 08:37:21 C 21 59 08.41 -01 18 15.0 q H36
2021-07-03 08:46:34 C 21 59 09.19 -01 17 55.7 q H36
2021-07-03 09:11:54 C 21 59 11.42 -01 17 00.5 q H36
2021-07-03 09:24:33 C 21 59 12.52 -01 16 33.9 q H36
2021-07-04 01:12:31 C 22 00 42.26 -00 41 54.1 V 033
2021-07-04 01:13:11 C 22 00 42.33 -00 41 52.7 V 033
2021-07-04 01:13:50 C 22 00 42.37 -00 41 51.1 V 033
2021-07-04 01:14:38 C 22 00 42.45 -00 41 49.2 V 033
2021-07-08 01:05:30 C 22 11 05.51 +03 28 39.3 V 033
2021-07-08 01:05:59 C 22 11 05.56 +03 28 41.1 V 033
2021-07-08 01:06:29 C 22 11 05.61 +03 28 42.6 V 033
2021-07-08 01:07:07 C 22 11 05.69 +03 28 44.7 V 033
2021-07-08 09:27:09 C 22 12 08.04 +03 54 30.5 V 703
2021-07-08 09:40:28 C 22 12 09.70 +03 55 12.0 V 703
2021-07-08 09:47:07 C 22 12 10.42 +03 55 32.8 V 703
2021-07-12 00:04:53 C 22 24 46.88 +09 10 41.4 V A17
2021-07-12 00:20:13 C 22 24 49.43 +09 11 46.7 V A17
2021-07-12 00:38:55 C 22 24 52.50 +09 13 06.7 V A17
2021-07-14 11:44:01 C 22 36 15.77 +13 56 27.2 V T08
2021-07-14 11:46:41 C 22 36 16.31 +13 56 41.1 V T08
2021-07-14 11:53:09 C 22 36 17.65 +13 57 15.4 V T08
2021-07-14 12:07:33 C 22 36 20.71 +13 58 33.4 V T08
2021-07-16 00:42:07 C 22 45 05.61 +17 29 41.5 V Z99
2021-07-16 00:45:40 C 22 45 06.51 +17 30 03.7 V Z99
2021-07-16 00:49:13 C 22 45 07.44 +17 30 26.0 V Z99
2021-07-16 00:52:46 C 22 45 08.33 +17 30 48.0 V Z99
2021-07-18 01:49:22 C 22 59 46.40 +23 06 17.0 V K87
2021-07-18 01:56:53 C 22 59 48.84 +23 07 13.6 V K87
2021-07-18 02:04:24 C 22 59 51.36 +23 08 10.2 V K87
2021-07-18 11:47:42 C 23 03 18.32 +24 23 04.1 V T08
2021-07-18 11:48:22 C 23 03 18.51 +24 23 08.7 V T08