2021 SM1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3440148227 ± 3.06e-06
Semi-major axis (a)1.4236204106 AU ± 5.97e-06
Inclination (i)2.15499162° ± 1.67e-05
Long. of Asc. Node (Ω)206.03265696° ± 1.95e-05
Arg. of Perihelion (ω)219.66270900° ± 2.47e-05
Mean Anomaly (M)128.34620547° ± 5.31e-03
Mean Motion (n)0.5802577736°/day ± 3.65e-06
Perihelion dist (q)0.93387389 AU ± 5.85e-06
Aphelion dist (Q)1.91336693 AU ± 9.13e-06
Orbital Period1.69860074 yr ± 1.07e-05
Physical Parameters
H (abs. magnitude)25.55
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.280″
Uncertainty1
Orbit TypeApollo
MOID0.001181 AU
Observations Used108
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-27
Last Observation Used2022-02-03
Observations (111)
Date Type RA Dec Mag Band Observatory
2021-10-08 21:32:28 C 01 34 01.83 +23 50 31.6 X Z43
2021-10-08 21:42:37 C 01 34 09.45 +23 51 21.2 X Z43
2021-10-08 21:52:47 C 01 34 17.07 +23 52 11.0 X Z43
2021-10-09 00:03:59 C 01 35 49.55 +24 02 49.4 V K88
2021-10-09 00:06:50 C 01 35 51.69 +24 03 02.8 V K88
2021-10-09 00:09:58 C 01 35 56.56 +24 03 11.0 V K87
2021-10-09 00:19:26 C 01 36 03.72 +24 03 56.1 V K87
2021-10-09 00:28:53 C 01 36 10.83 +24 04 40.3 V K87
2021-10-09 06:56:37 C 01 41 46.01 +24 37 29.9 V 703
2021-10-09 07:04:50 C 01 41 52.57 +24 38 11.6 V 703
2021-10-09 07:13:03 C 01 41 59.11 +24 38 53.3 V 703
2021-10-09 07:21:15 C 01 42 05.71 +24 39 34.4 V 703
2021-10-09 13:01:44 C 01 47 00.641 +25 09 02.48 V T12
2021-10-09 13:02:20 C 01 47 01.166 +25 09 05.42 V T12
2021-10-09 19:51:28 C 01 54 02.22 +25 41 47.4 V L18
2021-10-09 19:54:24 C 01 54 05.06 +25 42 03.0 V L18
2021-10-09 19:57:20 C 01 54 07.95 +25 42 20.2 V L18
2021-10-09 20:00:24 C 01 54 10.90 +25 42 36.1 V L18
2021-10-09 21:04:08 C 01 55 15.20 +25 48 18.7 V 246
2021-10-09 21:04:29 C 01 55 15.48 +25 48 19.7 V 246
2021-10-09 21:04:39 C 01 55 15.65 +25 48 20.7 V 246
2021-10-09 21:04:50 C 01 55 15.85 +25 48 22.6 V 246
2021-10-10 02:19:19 C 02 00 28.71 +26 16 33.2 V K87
2021-10-10 02:25:43 C 02 00 35.36 +26 17 06.0 V K87
2021-10-10 02:32:08 C 02 00 41.97 +26 17 39.8 V K87
2021-10-10 12:42:38 C 02 12 29.09 +27 17 15.2 V T08
2021-10-10 12:47:59 C 02 12 35.14 +27 17 44.0 V T08
2021-10-10 12:56:46 C 02 12 45.02 +27 18 30.4 V T08
2021-10-10 13:23:14 C 02 13 15.15 +27 20 51.3 V T08
2021-10-10 20:56:24 C 02 23 27.31 +28 00 31.7 V 246
2021-10-10 20:57:00 C 02 23 28.08 +28 00 34.8 V 246
2021-10-10 20:57:11 C 02 23 28.29 +28 00 35.8 V 246
2021-10-10 20:57:21 C 02 23 28.53 +28 00 37.5 V 246
2021-10-10 20:57:32 C 02 23 28.79 +28 00 38.0 V 246
2021-10-10 20:57:42 C 02 23 28.98 +28 00 39.8 V 246
2021-10-10 20:57:53 C 02 23 29.22 +28 00 40.0 V 246
2021-10-10 21:09:12 C 02 23 45.91 +28 01 12.7 V Z80
2021-10-10 21:17:32 C 02 23 56.92 +28 02 03.4 V Z80
2021-10-10 21:25:52 C 02 24 07.89 +28 02 54.3 V Z80
2021-10-10 21:34:33 C 02 24 18.89 +28 04 31.7 V K38
2021-10-10 21:53:12 C 02 24 43.14 +28 06 24.3 V K38
2021-10-10 22:11:54 C 02 25 07.46 +28 08 17.3 V K38
2021-10-11 01:47:20 C 02 29 55.01 +28 28 36.4 V J95
2021-10-11 01:50:31 C 02 29 59.34 +28 28 54.6 V J95
2021-10-11 01:53:49 C 02 30 03.82 +28 29 13.2 V J95
2021-10-11 01:57:03 C 02 30 08.19 +28 29 31.7 V J95
2021-10-11 06:48:51 C 02 37 32.22 +28 59 07.3 V 703
2021-10-11 06:56:28 C 02 37 43.04 +28 59 52.4 V 703
2021-10-11 07:04:05 C 02 37 53.79 +29 00 38.3 V 703
2021-10-11 07:11:40 C 02 38 04.73 +29 01 24.9 V 703