IAA RAS IAA Minor Planet Database

2021 SA

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5788774000
Semi-major axis (a)2.2796158000 AU
Inclination (i)1.64760000°
Long. of Asc. Node (Ω)175.37027000°
Arg. of Perihelion (ω)148.50595000°
Mean Anomaly (M)84.27566000°
Mean Motion (n)0.2863594900°/day
Perihelion dist (q)0.95999770 AU
Aphelion dist (Q)3.59923390 AU
Orbital Period3.44185430 yr
Physical Parameters
H (abs. magnitude)26.45
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.610″
Uncertainty6
Orbit TypeApollo
MOID0.001094 AU
Observations Used47
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-10-14
Observations (47)
Date Type RA Dec Mag Band Observatory
2021-09-16 10:16:29 C 04 19 42.92 +27 32 03.1 – V 703
2021-09-16 10:24:04 C 04 19 10.85 +27 28 16.1 – V 703
2021-09-16 10:31:39 C 04 18 38.63 +27 24 30.0 – V 703
2021-09-16 11:36:58 C 04 14 11.57 +26 52 26.9 – V 703
2021-09-16 11:37:14 C 04 14 10.49 +26 52 19.1 – V 703
2021-09-16 11:37:29 C 04 14 09.52 +26 52 11.7 – V 703
2021-09-16 11:37:45 C 04 14 08.47 +26 52 04.0 – V 703
2021-09-16 12:09:15 C 04 12 05.79 +26 36 53.1 – V 703
2021-09-16 12:09:31 C 04 12 04.73 +26 36 43.9 – V 703
2021-09-16 12:09:48 C 04 12 03.58 +26 36 37.6 – V 703
2021-09-16 17:15:41 C 03 56 57.860 +24 40 42.12 – V Q63
2021-09-16 17:17:50 C 03 56 51.636 +24 39 52.55 – V Q63
2021-09-16 17:20:01 C 03 56 45.341 +24 39 02.52 – V Q63
2021-09-16 19:05:54 C 03 52 54.96 +23 41 34.5 – V N51
2021-09-16 19:09:14 C 03 52 46.48 +23 40 27.4 – V N51
2021-09-16 23:14:30 C 03 43 50.43 +22 15 00.0 – V J95
2021-09-16 23:17:05 C 03 43 45.28 +22 14 16.0 – V J95
2021-09-16 23:19:41 C 03 43 40.13 +22 13 31.5 – V J95
2021-09-16 23:22:15 C 03 43 34.97 +22 12 48.0 – V J95
2021-09-16 23:51:50 C 03 42 41.63 +22 05 52.1 – X 958
2021-09-16 23:58:49 C 03 42 27.83 +22 03 55.2 – X 958
2021-09-17 00:05:48 C 03 42 14.03 +22 01 58.8 – X 958
2021-09-17 01:51:15 C 03 38 49.54 +21 33 10.7 – V I93
2021-09-17 01:56:27 C 03 38 39.75 +21 31 47.7 – V I93
2021-09-17 02:01:41 C 03 38 29.94 +21 30 24.2 – V I93
2021-09-17 08:34:37 C 03 28 37.87 +19 56 11.3 – u H21
2021-09-17 08:37:09 C 03 28 34.17 +19 55 39.0 – u H21
2021-09-17 08:39:41 C 03 28 30.47 +19 55 06.8 – u H21
2021-09-17 08:42:12 C 03 28 26.78 +19 54 34.6 – u H21
2021-09-17 08:43:48 C 03 28 24.45 +19 54 14.2 – u H21
2021-09-18 08:43:32 C 03 07 37.59 +16 16 26.3 – V G96
2021-09-18 08:54:32 C 03 07 29.82 +16 15 18.4 – V G96
2021-09-18 09:09:58 C 03 07 19.03 +16 13 43.9 – V G96
2021-09-18 09:16:39 C 03 07 14.33 +16 13 02.9 – V G96
2021-09-29 09:57:54 C 02 31 13.72 +09 43 45.8 – o 291
2021-09-29 10:18:40 C 02 31 12.27 +09 43 37.2 – o 291
2021-09-29 10:39:27 C 02 31 10.76 +09 43 29.2 – o 291
2021-10-01 10:02:46 C 02 29 13.799 +09 27 23.63 – V G37
2021-10-01 10:05:44 C 02 29 13.614 +09 27 22.58 – V G37
2021-10-02 11:59:19 C 02 28 14.919 +09 20 13.10 – V T12
2021-10-02 12:04:51 C 02 28 14.575 +09 20 11.61 – V T12
2021-10-02 12:10:23 C 02 28 14.235 +09 20 10.10 – V T12
2021-10-07 13:38:29 C 02 23 55.238 +08 52 27.24 – V T12
2021-10-07 13:43:49 C 02 23 54.976 +08 52 26.17 – V T12
2021-10-07 13:49:18 C 02 23 54.708 +08 52 24.96 – V T12
2021-10-14 09:26:18 C 02 18 51.78 +08 27 58.6 – V 695
2021-10-14 10:23:07 C 02 18 49.51 +08 27 51.7 – V 695