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
2021-10-11 19:12:49 C 02 57 51.28 +30 05 03.1 V G15
2021-10-11 19:16:47 C 02 57 58.20 +30 05 27.7 V G15
2021-10-11 19:20:59 C 02 58 05.47 +30 05 52.6 V G15
2021-10-11 22:59:03 C 03 04 25.32 +30 26 27.1 X Z43
2021-10-11 23:09:23 C 03 04 43.38 +30 27 25.6 X Z43
2021-10-11 23:19:43 C 03 05 01.44 +30 28 23.8 X Z43
2021-10-16 11:02:25 C 07 20 22.72 +26 07 09.7 V 695
2021-10-16 11:03:18 C 07 20 24.39 +26 07 01.4 V 695
2021-10-17 00:31:37 S 07 45 08.846 +23 51 04.61 L C51
2022-02-03 08:16:56 C 12 19 12.767 -10 04 38.32 V 309
2022-02-03 08:23:43 C 12 19 12.410 -10 04 35.64 V 309