2021 SJ

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5257476000
Semi-major axis (a)2.1421039000 AU
Inclination (i)8.05575000°
Long. of Asc. Node (Ω)340.41957000°
Arg. of Perihelion (ω)347.90810000°
Mean Anomaly (M)126.54052000°
Mean Motion (n)0.3143715700°/day
Perihelion dist (q)1.01589790 AU
Aphelion dist (Q)3.26830990 AU
Orbital Period3.13516790 yr
Physical Parameters
H (abs. magnitude)24.37
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.870″
Uncertainty8
Orbit TypeAmor
MOID0.011376 AU
Observations Used25
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-18
Observations (25)
Date Type RA Dec Mag Band Observatory
2021-09-16 02:41:42 C 21 25 01.89 +21 27 37.9 V G96
2021-09-16 02:50:06 C 21 25 07.08 +21 28 39.2 V G96
2021-09-16 02:58:30 C 21 25 12.30 +21 29 40.6 V G96
2021-09-17 04:07:43 C 21 40 57.08 +24 15 12.6 V G96
2021-09-17 04:15:17 C 21 41 01.33 +24 15 58.5 V G96
2021-09-17 04:24:40 C 21 41 06.58 +24 16 55.3 V G96
2021-09-17 05:52:22 C 21 41 55.53 +24 25 41.9 o 291
2021-09-17 05:57:21 C 21 41 58.34 +24 26 11.4 o 291
2021-09-17 05:59:51 C 21 41 59.71 +24 26 25.9 o 291
2021-09-17 16:24:44 C 21 48 06.12 +25 25 29.8 V N88
2021-09-17 16:25:14 C 21 48 06.38 +25 25 32.2 V N88
2021-09-17 19:39:02 C 21 50 01.86 +25 43 02.9 V B37
2021-09-17 19:55:04 C 21 50 10.41 +25 44 30.6 V B37
2021-09-17 20:11:23 C 21 50 19.18 +25 46 00.7 V B37
2021-09-17 20:12:33 C 21 50 19.75 +25 46 07.3 V B49
2021-09-17 20:15:22 C 21 50 21.28 +25 46 22.2 V B49
2021-09-17 20:16:26 C 21 50 22.12 +25 46 22.3 X 958
2021-09-17 20:30:57 C 21 50 29.95 +25 47 40.7 X 958
2021-09-17 20:48:08 C 21 50 39.07 +25 49 13.2 X 958
2021-09-17 21:38:48 C 21 51 05.78 +25 53 26.4 V J95
2021-09-17 21:49:40 C 21 51 11.53 +25 54 25.0 V J95
2021-09-18 04:19:26 C 21 54 50.18 +26 28 43.4 V G96
2021-09-18 04:19:40 C 21 54 50.25 +26 28 44.5 V G96
2021-09-18 04:19:55 C 21 54 50.43 +26 28 45.8 V G96
2021-09-18 04:20:11 C 21 54 50.51 +26 28 47.4 V G96