2021 SH1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2583593269 ± 2.21e-04
Semi-major axis (a)1.1421297339 AU ± 2.21e-04
Inclination (i)3.46484141° ± 2.98e-03
Long. of Asc. Node (Ω)209.76729383° ± 5.58e-03
Arg. of Perihelion (ω)64.35461658° ± 8.99e-03
Mean Anomaly (M)202.71343483° ± 3.84e-01
Mean Motion (n)0.8074936563°/day ± 2.34e-04
Perihelion dist (q)0.84704986 AU ± 3.01e-04
Aphelion dist (Q)1.43720960 AU ± 3.76e-04
Orbital Period1.22059941 yr ± 3.54e-04
Physical Parameters
H (abs. magnitude)25.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.223″
Uncertainty3
Orbit TypeApollo
MOID0.011484 AU
Observations Used28
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-26
Last Observation Used2021-10-06
Observations (28)
Date Type RA Dec Mag Band Observatory
2021-09-26 05:33:31 C 21 06 05.335 +11 21 02.28 U F52
2021-09-26 05:50:04 C 21 06 13.561 +11 20 11.57 U F52
2021-09-26 06:23:20 C 21 06 30.056 +11 18 29.24 U F52
2021-09-26 10:47:47 C 21 08 40.336 +11 04 46.31 V F51
2021-09-26 10:48:43 C 21 08 40.811 +11 04 43.70 V F51
2021-09-26 21:47:04 C 21 14 18.70 +10 31 02.0 V 204
2021-09-26 22:18:36 C 21 14 33.56 +10 29 27.6 V 204
2021-09-27 01:10:09 C 21 16 01.60 +10 23 37.3 V 807
2021-09-27 01:14:43 C 21 16 03.68 +10 23 23.9 V 807
2021-09-27 01:19:17 C 21 16 05.76 +10 23 10.7 V 807
2021-09-27 01:23:39 C 21 16 07.75 +10 22 58.0 V 807
2021-09-27 02:17:51 C 21 16 34.44 +10 18 01.1 u H21
2021-09-27 02:23:53 C 21 16 37.21 +10 17 43.7 u H21
2021-09-27 02:27:54 C 21 16 39.05 +10 17 31.6 u H21
2021-09-27 05:47:00 C 21 18 17.593 +10 08 30.08 V F51
2021-09-27 05:55:24 C 21 18 21.381 +10 08 05.78 V F51
2021-09-27 06:03:54 C 21 18 25.169 +10 07 41.74 V F51
2021-09-28 04:36:08 C 21 28 39.05 +09 04 47.0 V 654
2021-09-28 04:54:36 C 21 28 46.56 +09 03 57.7 V 654
2021-09-28 06:09:25 C 21 29 16.86 +09 00 38.4 V 654
2021-09-28 06:26:28 C 21 29 23.77 +08 59 52.7 V 654
2021-10-04 07:30:28 C 22 17 01.122 +04 01 25.10 U F52
2021-10-04 08:05:16 C 22 17 08.920 +04 00 31.35 U F52
2021-10-04 08:22:39 C 22 17 12.806 +04 00 04.32 U F52
2021-10-06 05:42:15 C 22 27 41.895 +02 55 27.66 V F51
2021-10-06 06:02:15 C 22 27 45.820 +02 55 01.81 V F51
2021-10-06 06:22:17 C 22 27 49.685 +02 54 36.11 V F51
2021-10-06 06:42:15 C 22 27 53.554 +02 54 10.20 V F51