2021 SJ1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4723993333 ± 1.20e-05
Semi-major axis (a)2.0353769532 AU ± 5.01e-05
Inclination (i)6.99675425° ± 1.39e-04
Long. of Asc. Node (Ω)321.46360421° ± 1.06e-04
Arg. of Perihelion (ω)82.26521208° ± 1.48e-04
Mean Anomaly (M)139.58756498° ± 1.86e-02
Mean Motion (n)0.3394259148°/day ± 1.25e-05
Perihelion dist (q)1.07386624 AU ± 3.60e-05
Aphelion dist (Q)2.99688767 AU ± 7.77e-05
Orbital Period2.90380387 yr ± 1.07e-04
Physical Parameters
H (abs. magnitude)23.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.306″
Uncertainty2
Orbit TypeAmor
MOID0.146710 AU
Observations Used22
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-09
Last Observation Used2021-12-13
Observations (22)
Date Type RA Dec Mag Band Observatory
2021-09-09 08:07:22 C 22 23 49.239 +04 22 04.40 V F51
2021-09-09 08:24:04 C 22 23 48.160 +04 22 24.91 V F51
2021-09-27 05:27:40 C 21 59 25.468 +14 47 29.59 U F52
2021-09-27 05:44:08 C 21 59 24.455 +14 47 57.90 U F52
2021-09-27 06:00:34 C 21 59 23.455 +14 48 25.71 U F52
2021-09-27 09:44:58 C 21 59 09.506 +14 54 42.64 V F51
2021-09-27 09:45:54 C 21 59 09.446 +14 54 44.12 V F51
2021-09-28 01:00:41 C 21 58 26.01 +15 20 14.2 u H21
2021-09-28 01:08:44 C 21 58 25.55 +15 20 28.1 u H21
2021-09-28 01:31:16 C 21 58 24.23 +15 21 07.1 u H21
2021-09-28 04:06:55 C 21 58 16.21 +15 25 35.3 V 654
2021-09-28 05:36:35 C 21 58 10.83 +15 28 06.8 V 654
2021-09-28 06:53:47 C 21 58 06.22 +15 30 17.4 V 654
2021-10-02 05:21:16 C 21 53 46.77 +18 14 45.2 V V00
2021-10-02 05:29:03 C 21 53 46.36 +18 14 59.1 V V00
2021-10-02 05:36:49 C 21 53 45.92 +18 15 13.1 V V00
2021-10-02 05:44:35 C 21 53 45.54 +18 15 26.5 V V00
2021-10-31 03:18:15 C 22 00 32.65 +41 48 44.2 V I52
2021-10-31 03:33:15 C 22 00 33.66 +41 49 17.3 V I52
2021-12-11 23:03:43 C 03 02 56.58 +58 52 52.1 V 204
2021-12-13 03:11:50 C 03 12 23.50 +58 14 40.8 V I52
2021-12-13 03:14:45 C 03 12 24.29 +58 14 36.0 V I52