IAA RAS IAA Minor Planet Database

2021 SO

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3103343000
Semi-major axis (a)0.7912379000 AU
Inclination (i)4.13057000°
Long. of Asc. Node (Ω)194.65246000°
Arg. of Perihelion (ω)343.57112000°
Mean Anomaly (M)150.83970000°
Mean Motion (n)1.4003719800°/day
Perihelion dist (q)0.54568960 AU
Aphelion dist (Q)1.03678620 AU
Orbital Period0.70381840 yr
Physical Parameters
H (abs. magnitude)25.35
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.890″
Uncertainty6
Orbit TypeAten
MOID0.008338 AU
Observations Used49
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-10-10
Observations (50)
Date Type RA Dec Mag Band Observatory
2021-09-18 05:00:15 C 23 51 28.18 +38 39 32.4 – V G96
2021-09-18 05:10:03 C 23 51 20.42 +38 38 33.6 – V G96
2021-09-18 05:18:18 C 23 51 13.83 +38 37 43.6 – V G96
2021-09-18 05:26:34 C 23 51 07.21 +38 36 53.5 – V G96
2021-09-18 10:04:12 C 23 47 24.85 +38 07 10.8 – V G96
2021-09-18 10:04:32 C 23 47 24.57 +38 07 08.8 – V G96
2021-09-18 10:04:53 C 23 47 24.31 +38 07 06.4 – V G96
2021-09-18 10:05:14 C 23 47 24.04 +38 07 03.6 – V G96
2021-09-18 20:09:42 C 23 40 22.65 +36 59 28.6 – X Z41
2021-09-18 20:51:04 C 23 39 50.95 +36 55 01.5 – X Z41
2021-09-18 20:56:18 C 23 39 46.89 +36 54 27.7 – X Z41
2021-09-18 21:47:29 C 23 39 05.52 +36 48 16.3 – V J95
2021-09-18 21:56:35 C 23 38 58.53 +36 47 16.2 – V J95
2021-09-18 22:07:34 C 23 38 50.03 +36 46 03.1 – V J95
2021-09-18 22:31:04 C 23 38 31.85 +36 43 24.7 – V J95
2021-09-18 22:45:06 C 23 38 18.75 +36 42 20.8 – V 104
2021-09-18 22:49:17 C 23 38 15.48 +36 41 52.3 – V 104
2021-09-18 22:53:27 C 23 38 12.17 +36 41 23.3 – V 104
2021-09-18 23:06:57 C 23 38 01.60 +36 39 50.9 – V 104
2021-09-19 19:11:29 C 23 23 47.95 +34 14 38.6 – V B49
2021-09-19 19:12:02 C 23 23 47.55 +34 14 34.6 – V B49
2021-09-19 19:17:58 C 23 23 43.22 +34 13 51.7 – V B49
2021-09-19 19:19:02 C 23 23 42.46 +34 13 44.1 – V B49
2021-09-19 22:28:10 C 23 21 19.94 +33 50 41.8 – V B37
2021-09-19 22:28:24 C 23 21 19.75 +33 50 39.9 – V B37
2021-09-19 22:36:16 C 23 21 13.74 +33 49 40.5 – V B37
2021-09-19 22:38:07 C 23 21 10.76 +33 49 11.5 – V 204
2021-09-19 22:53:47 C 23 20 58.87 +33 47 12.4 – V 204
2021-09-19 23:11:18 C 23 20 45.55 +33 44 58.9 – V 204
2021-09-21 21:22:12 C 22 49 41.65 +27 27 07.9 – V J95
2021-09-21 21:41:48 C 22 49 28.22 +27 24 20.8 – V J95
2021-09-21 22:01:22 C 22 49 14.78 +27 21 33.8 – V J95
2021-09-21 22:17:15 C 22 49 03.87 +27 19 17.3 – V J95
2021-09-24 20:06:16 C 22 08 29.80 +16 57 52.3 – V A17
2021-09-24 20:22:18 C 22 08 20.78 +16 55 30.9 – V A17
2021-09-24 20:38:21 C 22 08 11.72 +16 53 08.5 – V A17
2021-09-26 02:07:41 C 21 53 36.40 +12 35 59.8 – X W34
2021-09-26 02:10:52 C 21 53 34.75 +12 35 33.5 – X W34
2021-09-26 02:19:38 C 21 53 30.20 +12 34 18.8 – X W34
2021-09-27 01:03:22 C 21 43 15.36 +09 27 26.2 – u 807
2021-09-27 01:07:59 C 21 43 13.15 +09 26 48.9 – u 807
2021-09-27 01:12:31 C 21 43 10.88 +09 26 11.9 – u 807
2021-10-02 05:34:15 C 21 00 04.15 -04 53 29.9 – o 291
2021-10-02 05:35:49 C 21 00 03.64 -04 53 38.8 – o 291
2021-10-02 05:37:23 C 21 00 03.16 -04 53 46.4 – o 291
2021-10-09 02:16:16 C 20 27 10.76 -16 17 01.7 – o 291
2021-10-09 02:29:48 C 20 27 08.36 -16 17 42.1 – o 291
2021-10-10 02:18:42 C 20 23 50.25 -17 26 47.4 – o 291
2021-10-10 02:31:23 C 20 23 48.10 -17 27 22.1 – o 291
2021-10-10 02:44:09 C 20 23 46.03 -17 27 57.3 – o 291