2021 SG1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1987862683 ± 3.22e-04
Semi-major axis (a)0.9640810805 AU ± 7.32e-05
Inclination (i)9.58914789° ± 1.66e-02
Long. of Asc. Node (Ω)180.15591195° ± 1.25e-03
Arg. of Perihelion (ω)65.40582583° ± 1.68e-02
Mean Anomaly (M)233.63449415° ± 2.26e-01
Mean Motion (n)1.0412186439°/day ± 1.19e-04
Perihelion dist (q)0.77243500 AU ± 3.16e-04
Aphelion dist (Q)1.15572716 AU ± 3.22e-04
Orbital Period0.94660837 yr ± 1.08e-04
Physical Parameters
H (abs. magnitude)25.56
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.453″
Uncertainty3
Orbit TypeAten
MOID0.002636 AU
Observations Used20
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-26
Last Observation Used2021-10-01
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-09-26 23:43:14 C 21 30 51.73 -32 39 26.2 V W94
2021-09-26 23:51:41 C 21 31 00.25 -32 40 10.1 V W94
2021-09-27 00:00:16 C 21 31 08.86 -32 40 55.8 V W94
2021-09-27 01:21:22 C 21 32 28.24 -32 47 37.2 V W95
2021-09-27 01:28:56 C 21 32 35.57 -32 48 13.2 V W95
2021-09-27 01:36:28 C 21 32 42.87 -32 48 48.8 V W95
2021-09-28 00:32:12 C 21 54 28.71 -34 14 51.8 X Y00
2021-09-28 00:41:20 C 21 54 35.51 -34 15 17.9 X Y00
2021-09-28 00:50:30 C 21 54 42.34 -34 15 44.6 X Y00
2021-09-28 02:47:39 C 21 56 17.28 -34 21 08.5 V W95
2021-09-28 02:55:15 C 21 56 22.77 -34 21 28.5 V W95
2021-09-28 03:02:51 C 21 56 28.31 -34 21 48.6 V W95
2021-09-28 10:10:32 C 22 02 10.77 -34 38 59.4 V R65
2021-09-28 10:14:38 C 22 02 13.57 -34 39 09.5 V R65
2021-09-28 10:18:42 C 22 02 16.36 -34 39 19.0 V R65
2021-09-28 10:23:02 C 22 02 19.36 -34 39 29.6 V R65
2021-10-01 07:31:27 C 22 40 58.281 -36 17 45.33 U F52
2021-10-01 07:53:00 C 22 41 05.628 -36 18 01.67 U F52
2021-10-01 08:05:46 C 22 41 09.969 -36 18 10.85 U F52
2021-10-01 08:18:34 C 22 41 14.298 -36 18 19.67 U F52