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
2021-11-05 08:46:47 C 03 57 29.847 +12 35 00.51 U F52
2021-11-08 07:59:13 C 03 53 27.09 +11 07 38.5 V G96
2021-11-08 08:06:39 C 03 53 26.65 +11 07 29.2 V G96
2021-11-08 08:14:03 C 03 53 26.26 +11 07 19.9 V G96
2021-11-08 08:21:28 C 03 53 25.75 +11 07 11.8 V G96
2021-11-09 07:47:16 C 03 52 06.32 +10 39 15.3 V G96
2021-11-09 07:47:34 C 03 52 06.765 +10 39 17.05 U F51
2021-11-09 07:54:47 C 03 52 05.86 +10 39 07.0 V G96
2021-11-09 08:02:18 C 03 52 05.39 +10 38 58.0 V G96
2021-11-09 08:04:14 C 03 52 05.775 +10 38 57.33 U F51
2021-11-09 08:09:50 C 03 52 04.96 +10 38 49.3 V G96
2021-11-09 08:20:59 C 03 52 04.801 +10 38 37.58 U F51
2021-11-09 08:37:45 C 03 52 03.812 +10 38 17.94 U F51
2021-11-12 09:29:57 C 03 47 58.37 +09 14 22.4 V I52
2021-11-12 09:34:34 C 03 47 58.14 +09 14 17.0 V I52
2021-11-12 09:38:30 C 03 47 57.87 +09 14 12.6 V I52
2021-11-12 09:43:04 C 03 47 57.64 +09 14 07.7 V I52
2021-11-12 11:35:47 C 03 47 51.531 +09 12 03.64 U F52
2021-11-12 12:10:46 C 03 47 49.505 +09 11 24.56 U F52
2021-11-12 12:28:12 C 03 47 48.495 +09 11 05.01 U F52
2021-11-14 07:13:28 C 03 45 28.25 +08 24 11.6 V G96
2021-11-14 07:29:45 C 03 45 27.35 +08 23 53.9 V G96
2021-11-14 07:37:53 C 03 45 26.90 +08 23 45.4 V G96
2021-11-23 10:30:40 C 03 34 25.244 +04 53 42.08 U F51
2021-11-23 10:47:02 C 03 34 24.457 +04 53 28.24 U F51
2021-11-23 11:03:26 C 03 34 23.660 +04 53 14.74 U F51
2021-11-26 07:15:48 C 03 31 24.354 +03 58 41.10 U F52
2021-11-26 07:33:21 C 03 31 23.578 +03 58 27.88 U F52
2021-11-26 07:51:00 C 03 31 22.795 +03 58 14.36 U F52
2021-11-26 08:08:36 C 03 31 22.009 +03 58 01.01 U F52
2021-12-02 05:13:15 C 03 25 58.97 +02 21 57.1 V G96
2021-12-02 05:20:44 C 03 25 58.73 +02 21 52.1 V G96
2021-12-02 05:28:11 C 03 25 58.43 +02 21 47.9 V G96
2021-12-02 05:35:39 C 03 25 58.16 +02 21 43.4 V G96
2021-12-03 06:23:54 C 03 25 08.55 +02 07 07.0 V G96
2021-12-03 06:31:22 C 03 25 08.30 +02 07 03.2 V G96
2021-12-03 06:38:53 C 03 25 08.04 +02 06 58.5 V G96
2021-12-03 06:46:22 C 03 25 07.80 +02 06 54.9 V G96
2025-05-09 09:05:17 C 18 58 31.462 +04 15 23.90 V I52
2025-05-09 09:13:05 C 18 58 31.843 +04 15 37.08 V I52
2025-05-09 09:20:53 C 18 58 32.340 +04 15 50.51 V I52
2025-05-09 09:28:40 C 18 58 32.750 +04 16 03.58 V I52
2025-05-09 09:46:10 C 18 58 33.751 +04 16 33.92 V I52
2025-07-08 21:01:18 C 20 06 11.81 +52 41 03.6 X B88
2025-07-08 22:00:52 C 20 06 14.18 +52 42 37.8 X B88
2025-07-08 23:03:06 C 20 06 16.41 +52 44 15.2 X B88
2025-07-09 20:58:45 C 20 07 11.61 +53 17 58.3 X B88
2025-07-09 21:59:20 C 20 07 13.95 +53 19 31.9 X B88
2025-07-09 23:00:05 C 20 07 16.33 +53 21 05.3 X B88
2025-10-04 08:50:12 C 23 32 26.400 +49 31 15.21 X F51