IAA RAS IAA Minor Planet Database

2021 SM3

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4801960000
Semi-major axis (a)1.5059573000 AU
Inclination (i)16.06139000°
Long. of Asc. Node (Ω)23.08474000°
Arg. of Perihelion (ω)71.20389000°
Mean Anomaly (M)52.81330000°
Mean Motion (n)0.5333165900°/day
Perihelion dist (q)0.78280260 AU
Aphelion dist (Q)2.22911200 AU
Orbital Period1.84807240 yr
Physical Parameters
H (abs. magnitude)22.78
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.770″
Uncertainty7
Orbit TypeApollo
MOID0.003012 AU
Observations Used56
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-10-11
Observations (56)
Date Type RA Dec Mag Band Observatory
2021-09-30 10:12:24 C 02 52 21.460 -16 14 48.98 – U F51
2021-09-30 10:31:55 C 02 52 24.090 -16 14 28.03 – U F51
2021-09-30 10:51:26 C 02 52 26.706 -16 14 06.89 – U F51
2021-09-30 11:10:53 C 02 52 29.304 -16 13 45.80 – U F51
2021-09-30 23:36:56 C 02 54 24.77 -15 59 29.7 – V I93
2021-09-30 23:49:21 C 02 54 26.56 -15 59 14.7 – V I93
2021-10-01 00:02:15 C 02 54 28.47 -15 58 59.7 – V I93
2021-10-01 00:52:35 C 02 54 35.13 -15 58 01.7 – X 595
2021-10-01 01:30:24 C 02 54 40.65 -15 57 14.7 – X 595
2021-10-01 09:40:18 C 02 56 00.52 -15 46 43.8 – o 691
2021-10-01 09:51:35 C 02 56 02.20 -15 46 30.1 – o 691
2021-10-01 09:52:16 C 02 56 02.24 -15 46 29.3 – V V06
2021-10-01 09:52:54 C 02 56 02.34 -15 46 28.4 – V V06
2021-10-01 09:53:33 C 02 56 02.42 -15 46 27.8 – V V06
2021-10-01 09:54:12 C 02 56 02.52 -15 46 27.0 – V V06
2021-10-01 19:47:21 C 02 57 44.89 -15 33 04.4 – V N51
2021-10-01 19:55:56 C 02 57 46.18 -15 32 53.0 – V N51
2021-10-02 08:38:50 C 03 00 03.94 -15 14 18.1 – V 654
2021-10-02 09:10:57 C 03 00 09.37 -15 13 29.5 – V 654
2021-10-02 09:40:03 C 03 00 14.28 -15 12 45.1 – V 654
2021-10-06 12:17:33 C 03 25 09.32 -11 25 04.4 – V T05
2021-10-06 12:20:11 C 03 25 10.16 -11 24 55.7 – V T05
2021-10-06 12:24:08 C 03 25 11.40 -11 24 42.5 – V T05
2021-10-06 12:51:48 C 03 25 20.15 -11 23 08.4 – V T05
2021-10-07 11:38:17 C 03 33 58.48 -09 57 01.1 – V T05
2021-10-07 11:42:55 C 03 34 00.28 -09 56 41.1 – V T05
2021-10-07 11:56:35 C 03 34 05.58 -09 55 43.9 – V T05
2021-10-07 12:17:02 C 03 34 13.36 -09 54 18.5 – V T05
2021-10-08 10:13:43 C 03 44 11.50 -08 11 07.5 – V V06
2021-10-08 10:13:59 C 03 44 11.63 -08 11 06.1 – V V06
2021-10-08 10:14:16 C 03 44 11.76 -08 11 04.6 – V V06
2021-10-08 10:14:33 C 03 44 11.89 -08 11 03.2 – V V06
2021-10-09 03:10:24 C 03 53 20.12 -06 34 09.8 – V K87
2021-10-09 03:15:52 C 03 53 23.19 -06 33 35.5 – V K87
2021-10-09 12:01:45 C 03 58 48.71 -05 34 53.0 – V T08
2021-10-09 12:21:42 C 03 59 00.69 -05 32 35.1 – V T08
2021-10-09 12:26:21 C 03 59 03.50 -05 32 01.9 – V T08
2021-10-09 12:40:58 C 03 59 12.26 -05 30 20.9 – V T08
2021-10-10 02:57:19 C 04 09 00.29 -03 43 40.7 – V K87
2021-10-10 03:02:00 C 04 09 03.60 -03 43 02.7 – V K87
2021-10-10 03:06:44 C 04 09 06.99 -03 42 24.2 – V K87
2021-10-10 05:10:18 C 04 10 38.36 -03 24 38.4 – V G40
2021-10-10 05:26:28 C 04 10 50.04 -03 22 22.2 – V G40
2021-10-10 05:36:10 C 04 10 57.08 -03 21 00.5 – V G40
2021-10-10 05:46:12 C 04 11 04.34 -03 19 35.7 – V G40
2021-10-10 09:36:11 C 04 14 09.37 -02 46 44.5 – V 703
2021-10-10 09:43:51 C 04 14 15.14 -02 45 37.9 – V 703
2021-10-10 09:51:31 C 04 14 20.94 -02 44 29.7 – V 703
2021-10-10 09:59:11 C 04 14 26.79 -02 43 21.3 – V 703
2021-10-11 00:37:07 C 04 27 08.68 -00 23 08.0 – V A17