2021 SN1

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7792190780 ± 6.46e-08
Semi-major axis (a)1.7867932667 AU ± 1.83e-08
Inclination (i)12.37810781° ± 2.03e-05
Long. of Asc. Node (Ω)208.33487970° ± 3.16e-05
Arg. of Perihelion (ω)284.85109878° ± 2.50e-05
Mean Anomaly (M)235.90964910° ± 8.35e-06
Mean Motion (n)0.4126680210°/day ± 6.34e-09
Perihelion dist (q)0.39448986 AU ± 1.15e-07
Aphelion dist (Q)3.17909667 AU ± 1.20e-07
Orbital Period2.38842419 yr ± 3.67e-08
Physical Parameters
H (abs. magnitude)21.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.280″
Uncertainty0
Orbit TypeApollo
MOID0.027582 AU
Observations Used90
Oppositions9
Arc Total2009-2024
First Observation Used2009-09-18
Last Observation Used2024-06-06
Observations (93)
Date Type RA Dec Mag Band Observatory
2021-10-08 20:40:33 C 22 54 15.44 +14 00 30.4 V K87
2021-10-08 20:48:04 C 22 54 12.83 +14 00 13.3 V K87
2021-10-08 20:55:37 C 22 54 10.23 +13 59 55.5 V K87
2021-10-09 18:21:42 C 22 46 36.05 +13 08 06.0 V K88
2021-10-09 18:24:33 C 22 46 35.05 +13 07 59.3 V K88
2021-10-09 18:27:25 C 22 46 33.95 +13 07 52.1 V K88
2021-10-09 20:06:19 C 22 45 57.52 +13 03 39.4 V K87
2021-10-09 20:14:33 C 22 45 54.38 +13 03 18.7 V K87
2021-10-09 20:22:47 C 22 45 51.36 +13 02 58.8 V K87
2021-10-10 19:52:20 C 22 36 59.98 +12 00 04.1 V A17
2021-10-10 20:03:40 C 22 36 55.52 +11 59 32.5 V A17
2021-10-10 20:05:19 C 22 36 54.86 +11 59 30.2 V K38
2021-10-10 20:14:59 C 22 36 51.00 +11 59 00.6 V A17
2021-10-10 20:34:58 C 22 36 43.12 +11 58 06.9 V K38
2021-10-11 09:01:34 C 22 31 46.696 +11 22 27.37 U F51
2021-10-11 09:18:22 C 22 31 39.765 +11 21 37.44 U F51
2021-10-11 09:35:09 C 22 31 32.843 +11 20 47.41 U F51
2021-10-11 14:16:56 C 22 29 39.40 +11 06 36.5 V D29
2021-10-11 14:37:18 C 22 29 30.88 +11 05 35.2 V D29
2021-10-11 14:57:40 C 22 29 22.38 +11 04 33.2 V D29
2021-10-13 00:08:06 C 22 15 15.40 +09 17 30.5 V G40
2021-10-13 00:36:02 C 22 15 02.76 +09 15 53.7 V G40
2021-10-13 01:28:24 C 22 14 41.91 +09 12 47.2 u H21
2021-10-13 01:33:05 C 22 14 39.73 +09 12 30.9 u H21
2021-10-13 01:37:07 C 22 14 37.88 +09 12 17.1 u H21
2021-10-18 00:46:46 C 21 14 05.15 +00 53 17.0 u H21
2021-10-18 00:50:41 C 21 14 02.90 +00 52 57.9 u H21
2021-10-18 00:54:43 C 21 14 00.55 +00 52 38.4 u H21
2021-10-18 00:58:45 C 21 13 58.20 +00 52 18.7 u H21
2021-10-18 01:02:48 C 21 13 55.85 +00 51 58.9 u H21
2021-10-18 01:06:50 C 21 13 53.49 +00 51 39.4 u H21
2021-10-19 02:00:19 S 20 59 25.454 -01 11 36.85 L C51
2021-10-19 06:42:42 S 20 56 37.817 -01 35 33.18 L C51
2021-10-25 01:57:38 C 19 28 54.61 -13 31 33.6 o 691
2021-10-25 02:07:46 C 19 28 48.01 -13 32 22.0 o 691
2024-06-02 06:05:35 C 08 26 32.580 +33 46 55.53 V T14
2024-06-02 06:06:59 C 08 26 33.495 +33 46 56.75 V T14
2024-06-03 06:05:06 C 08 42 39.557 +34 05 32.04 V T14
2024-06-03 06:07:51 C 08 42 41.412 +34 05 33.57 V T14
2024-06-03 06:10:35 C 08 42 43.277 +34 05 35.08 V T14
2024-06-06 03:50:54 C 09 32 21.410 +34 13 48.54 V I52
2024-06-06 04:18:11 C 09 32 41.227 +34 13 35.06 V I52
2024-06-06 04:45:00 C 09 33 00.761 +34 13 21.75 V I52