IAA RAS IAA Minor Planet Database

2021 SU1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2494408919 ± 2.62e-05
Semi-major axis (a)0.8507539717 AU ± 9.87e-06
Inclination (i)1.10778694° ± 1.30e-04
Long. of Asc. Node (Ω)349.90337009° ± 1.77e-04
Arg. of Perihelion (ω)223.58444722° ± 3.78e-04
Mean Anomaly (M)236.48839572° ± 3.15e-02
Mean Motion (n)1.2560481792°/day ± 2.19e-05
Perihelion dist (q)0.63854114 AU ± 2.35e-05
Aphelion dist (Q)1.06296680 AU ± 2.55e-05
Orbital Period0.78470420 yr ± 1.37e-05
Physical Parameters
H (abs. magnitude)26.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.201″
Uncertainty2
Orbit TypeAten
MOID0.003171 AU
Observations Used62
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-28
Last Observation Used2021-12-01
Observations (62)
Date Type RA Dec Mag Band Observatory
2021-09-28 07:03:57 C 21 20 47.826 -03 13 06.69 – U F51
2021-09-28 07:22:12 C 21 20 49.929 -03 13 36.84 – U F51
2021-09-28 07:40:28 C 21 20 52.023 -03 14 06.69 – U F51
2021-09-28 07:58:43 C 21 20 54.138 -03 14 36.51 – U F51
2021-09-28 20:29:16 C 21 23 30.64 -03 35 11.5 – X Z41
2021-09-28 20:43:31 C 21 23 32.27 -03 35 31.4 – X Z41
2021-09-28 20:45:45 C 21 23 32.47 -03 35 35.0 – X Z41
2021-09-28 20:49:19 C 21 23 28.01 -03 35 58.6 – V L01
2021-09-28 20:52:07 C 21 23 28.33 -03 36 02.1 – V L01
2021-09-28 20:52:41 C 21 23 28.41 -03 36 03.0 – V L01
2021-09-28 22:02:53 C 21 23 36.88 -03 37 38.3 – V L01
2021-09-28 22:08:30 C 21 23 37.60 -03 37 46.0 – V L01
2021-09-29 01:53:02 C 21 24 30.31 -03 42 25.3 – u H21
2021-09-29 01:57:04 C 21 24 30.70 -03 42 30.6 – u H21
2021-09-29 02:01:22 C 21 24 31.14 -03 42 36.4 – u H21
2021-09-29 02:59:53 C 21 24 46.09 -03 43 29.3 – V 654
2021-09-29 03:33:40 C 21 24 49.47 -03 44 13.9 – V 654
2021-09-29 04:04:38 C 21 24 52.41 -03 44 54.3 – V 654
2021-09-29 04:22:15 C 21 24 52.18 -03 45 05.6 – o 691
2021-09-29 04:33:25 C 21 24 53.20 -03 45 20.1 – o 691
2021-09-29 04:44:34 C 21 24 54.24 -03 45 34.1 – o 691
2021-09-30 10:40:12 C 21 29 20.10 -04 12 30.7 – V 474
2021-09-30 10:45:16 C 21 29 20.49 -04 12 35.4 – V 474
2021-09-30 10:50:20 C 21 29 20.88 -04 12 39.8 – V 474
2021-09-30 10:55:24 C 21 29 21.27 -04 12 44.7 – V 474
2021-10-02 04:25:39 C 21 34 04.43 -04 50 24.6 – o 691
2021-10-02 04:48:42 C 21 34 05.38 -04 50 38.6 – o 691
2021-10-02 05:11:37 C 21 34 06.26 -04 50 52.9 – o 691
2021-10-02 06:56:01 C 21 34 20.426 -04 51 17.52 – V T12
2021-10-03 04:09:23 C 21 36 14.03 -05 04 05.0 – o 691
2021-10-03 04:24:48 C 21 36 14.50 -05 04 13.1 – o 691
2021-10-03 04:40:12 C 21 36 14.99 -05 04 21.2 – o 691
2021-10-04 05:30:26 C 21 38 19.931 -05 15 29.45 – U F52
2021-10-04 05:47:59 C 21 38 20.386 -05 15 37.58 – U F52
2021-10-04 06:05:22 C 21 38 20.805 -05 15 45.55 – U F52
2021-10-04 06:22:46 C 21 38 21.212 -05 15 52.99 – U F52
2021-10-07 07:56:17 C 21 43 05.460 -05 39 42.84 – V T12
2021-10-07 07:59:48 C 21 43 05.519 -05 39 43.61 – V T12
2021-10-07 19:44:11 C 21 43 50.946 -05 43 02.99 – V Z84
2021-10-07 20:57:12 C 21 43 52.567 -05 43 19.32 – V Z84
2021-10-09 05:03:51 C 21 45 37.03 -05 49 13.9 – o 291
2021-10-09 05:20:26 C 21 45 37.36 -05 49 16.4 – o 291
2021-10-09 05:37:07 C 21 45 37.71 -05 49 18.9 – o 291
2021-10-09 06:51:02 C 21 45 45.111 -05 49 07.49 – V T12
2021-10-10 03:56:55 C 21 46 51.59 -05 52 39.3 – o 291
2021-10-10 04:18:14 C 21 46 52.08 -05 52 43.1 – o 291
2021-10-10 04:39:32 C 21 46 52.45 -05 52 45.0 – o 291
2021-10-11 06:09:58 C 21 48 08.08 -05 55 43.7 – V 291
2021-10-11 06:31:32 C 21 48 08.62 -05 55 45.7 – V 291
2021-10-11 06:53:07 C 21 48 09.22 -05 55 46.5 – V 291