2021 MD1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5212800213 ± 5.05e-08
Semi-major axis (a)2.5648533163 AU ± 1.47e-08
Inclination (i)26.61146234° ± 7.68e-06
Long. of Asc. Node (Ω)223.41591326° ± 6.81e-06
Arg. of Perihelion (ω)104.24472884° ± 1.62e-05
Mean Anomaly (M)23.62373418° ± 4.41e-06
Mean Motion (n)0.2399487417°/day ± 2.06e-09
Perihelion dist (q)1.22784652 AU ± 1.30e-07
Aphelion dist (Q)3.90186011 AU ± 1.31e-07
Orbital Period4.10765348 yr ± 3.53e-08
Physical Parameters
H (abs. magnitude)19.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.213″
Uncertainty0
Orbit TypeAmor
MOID0.451360 AU
Observations Used124
Oppositions6
Arc Total2017-2025
First Observation Used2017-11-24
Last Observation Used2025-12-24
Observations (136)
Date Type RA Dec Mag Band Observatory
2017-11-24 12:00:22 C 05 05 03.010 +00 39 59.29 V F51
2017-11-24 12:19:11 C 05 05 01.923 +00 39 47.99 V F51
2017-11-24 12:38:01 C 05 05 00.821 +00 39 36.51 V F51
2017-11-24 12:56:53 C 05 04 59.724 +00 39 25.15 V F51
2017-12-14 09:10:57 C 04 39 39.218 -02 46 24.54 V F51
2017-12-14 09:25:58 C 04 39 38.534 -02 46 28.54 V F51
2017-12-24 09:44:21 C 04 29 54.988 -03 29 09.13 V F51
2017-12-24 10:16:25 C 04 29 53.838 -03 29 12.21 V F51
2021-04-23 14:23:34 C 20 31 13.860 +04 41 58.38 V F51
2021-04-23 14:38:37 C 20 31 15.705 +04 42 19.35 V F51
2021-06-17 09:33:47 C 23 39 04.93 +36 07 22.4 V G96
2021-06-17 09:43:31 C 23 39 06.48 +36 07 33.5 V G96
2021-06-17 09:53:15 C 23 39 08.12 +36 07 44.1 V G96
2021-06-17 10:03:00 C 23 39 09.58 +36 07 54.7 V G96
2021-06-17 10:26:45 C 23 39 13.44 +36 08 20.9 V V06
2021-06-17 10:31:18 C 23 39 14.17 +36 08 25.6 V V06
2021-06-17 10:35:51 C 23 39 14.90 +36 08 30.9 V V06
2021-06-17 10:40:25 C 23 39 15.63 +36 08 35.9 V V06
2021-06-18 10:24:00 C 23 43 07.73 +36 34 00.4 V G96
2021-06-18 10:28:31 C 23 43 08.36 +36 34 04.1 V G96
2021-06-18 10:30:46 C 23 43 08.82 +36 34 07.0 V G96
2021-06-19 10:37:16 C 23 47 05.41 +36 59 19.0 V V06
2021-06-19 10:44:23 C 23 47 06.56 +36 59 26.4 V V06
2021-06-19 10:51:30 C 23 47 07.71 +36 59 33.9 V V06
2021-06-20 10:39:00 C 23 51 02.05 +37 23 49.9 V V06
2021-06-20 10:44:56 C 23 51 02.99 +37 23 55.3 V V06
2021-06-20 10:50:52 C 23 51 03.94 +37 24 01.5 V V06
2021-06-21 09:37:05 C 23 54 49.04 +37 46 39.8 V V06
2021-06-21 09:48:31 C 23 54 50.93 +37 46 51.3 V V06
2021-06-30 09:21:12 C 00 30 45.92 +40 53 07.4 V V06
2021-06-30 09:49:07 C 00 30 50.55 +40 53 28.0 V V06
2021-07-07 10:16:32 C 00 59 07.16 +42 42 42.7 V V06
2021-07-07 10:26:47 C 00 59 08.94 +42 42 48.2 V V06
2021-07-07 10:37:03 C 00 59 10.59 +42 42 54.3 V V06
2021-07-07 10:47:20 C 00 59 12.28 +42 43 00.4 V V06
2021-10-01 10:18:18 C 04 27 09.23 +30 14 02.9 V V06
2021-10-01 10:20:13 C 04 27 09.22 +30 14 01.7 V V06
2021-10-01 10:24:05 C 04 27 09.23 +30 13 56.6 V V06
2021-10-13 08:46:03 C 04 23 00.98 +24 35 46.1 V G96
2021-10-13 08:53:27 C 04 23 00.72 +24 35 36.1 V G96
2021-10-13 09:00:51 C 04 23 00.45 +24 35 27.4 V G96
2021-10-13 09:08:16 C 04 23 00.25 +24 35 18.4 V G96
2021-10-28 09:28:59 C 04 08 00.003 +16 42 39.02 U F52
2021-10-28 09:45:18 C 04 07 59.106 +16 42 17.57 U F52
2021-10-28 10:01:48 C 04 07 58.200 +16 41 55.87 U F52
2021-10-28 10:18:14 C 04 07 57.301 +16 41 34.07 U F52
2021-10-31 09:32:58 C 04 04 09.052 +15 07 45.28 U F52
2021-10-31 09:49:28 C 04 04 08.106 +15 07 23.85 U F52
2021-10-31 10:05:56 C 04 04 07.170 +15 07 02.73 U F52
2021-11-05 08:31:12 C 03 57 30.792 +12 35 19.86 U F52