IAA RAS IAA Minor Planet Database

2021 SE1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2952226819 ± 1.30e-04
Semi-major axis (a)1.4423602083 AU ± 2.77e-04
Inclination (i)3.60006291° ± 1.35e-03
Long. of Asc. Node (Ω)1.75654340° ± 1.31e-04
Arg. of Perihelion (ω)17.88849266° ± 1.57e-03
Mean Anomaly (M)133.62257116° ± 2.44e-01
Mean Motion (n)0.5689861266°/day ± 1.64e-04
Perihelion dist (q)1.01654276 AU ± 2.70e-04
Aphelion dist (Q)1.86817766 AU ± 4.05e-04
Orbital Period1.73225012 yr ± 4.99e-04
Physical Parameters
H (abs. magnitude)26.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.394″
Uncertainty3
Orbit TypeApollo
MOID0.019662 AU
Observations Used39
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-27
Last Observation Used2021-10-07
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-09-27 07:53:27 C 21 43 55.564 -11 25 35.45 – U F51
2021-09-27 08:06:43 C 21 43 57.482 -11 23 54.78 – U F51
2021-09-27 08:20:02 C 21 43 59.443 -11 22 13.29 – U F51
2021-09-27 08:33:36 C 21 44 01.436 -11 20 30.26 – U F51
2021-09-27 11:27:44 C 21 44 39.68 -10 53 10.3 – V 474
2021-09-27 11:29:03 C 21 44 39.94 -10 52 59.2 – V 474
2021-09-27 11:30:21 C 21 44 40.17 -10 52 49.6 – V 474
2021-09-27 11:36:54 C 21 44 41.30 -10 51 59.0 – V 474
2021-09-27 16:08:37 C 21 45 49.97 -10 22 44.8 – V N51
2021-09-27 16:17:20 C 21 45 51.48 -10 21 38.7 – V N51
2021-09-27 18:47:58 C 21 46 34.46 -10 02 20.4 – V 104
2021-09-27 18:56:19 C 21 46 36.05 -10 01 13.5 – V 104
2021-09-27 20:30:24 C 21 46 53.23 -09 48 49.5 – V 204
2021-09-27 20:55:18 C 21 46 57.68 -09 45 29.6 – V 204
2021-09-27 22:20:39 C 21 47 13.08 -09 33 56.4 – V 203
2021-09-27 23:06:36 C 21 47 21.76 -09 27 39.4 – V 203
2021-09-28 00:31:51 C 21 47 57.51 -09 10 18.5 – u 807
2021-09-28 00:36:28 C 21 47 58.29 -09 09 40.7 – u 807
2021-09-28 00:41:11 C 21 47 59.11 -09 09 02.4 – u 807
2021-09-28 01:18:27 C 21 47 57.23 -09 04 44.3 – X Y00
2021-09-28 01:24:15 C 21 48 09.44 -09 08 24.3 – X W34
2021-09-28 01:32:43 C 21 47 59.67 -09 02 45.4 – X Y00
2021-09-28 01:35:48 C 21 48 11.50 -09 06 49.2 – X W34
2021-09-28 01:46:37 C 21 48 13.41 -09 05 20.4 – X W34
2021-09-28 01:46:52 C 21 48 01.98 -09 00 47.8 – X Y00
2021-09-28 02:22:16 C 21 48 21.07 -09 00 42.0 – u H21
2021-09-28 02:26:18 C 21 48 21.79 -09 00 09.0 – u H21
2021-09-28 02:30:19 C 21 48 22.49 -08 59 35.7 – u H21
2021-10-01 22:23:20 C 22 16 17.00 +06 40 23.1 – V 104
2021-10-01 22:27:30 C 22 16 18.29 +06 41 13.7 – V 104
2021-10-01 22:31:40 C 22 16 19.53 +06 42 04.1 – V 104
2021-10-04 18:26:46 C 22 46 37.67 +21 47 25.1 – V G02
2021-10-04 18:32:17 C 22 46 40.07 +21 48 45.1 – V G02
2021-10-04 18:37:39 C 22 46 42.60 +21 50 00.0 – V G02
2021-10-05 05:58:10 C 22 52 49.686 +24 32 46.97 – U F51
2021-10-05 06:18:50 C 22 52 58.920 +24 37 46.50 – U F51
2021-10-05 06:39:29 C 22 53 08.015 +24 42 43.96 – U F51
2021-10-06 19:19:20 C 23 14 55.71 +33 09 49.4 – V B49
2021-10-06 19:24:42 C 23 14 58.71 +33 11 04.9 – V B49
2021-10-07 20:04:11 C 23 31 34.18 +38 33 46.7 – V A17
2021-10-07 20:18:04 C 23 31 42.91 +38 36 46.2 – V A17
2021-10-07 20:31:56 C 23 31 51.56 +38 39 44.2 – V A17