2021 SN2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7458497676 ± 7.91e-05
Semi-major axis (a)2.8778480482 AU ± 9.56e-04
Inclination (i)40.38736758° ± 4.22e-03
Long. of Asc. Node (Ω)15.08039967° ± 3.99e-04
Arg. of Perihelion (ω)103.55858849° ± 3.79e-03
Mean Anomaly (M)287.06479106° ± 1.43e-01
Mean Motion (n)0.2018879914°/day ± 1.01e-04
Perihelion dist (q)0.73140575 AU ± 3.33e-04
Aphelion dist (Q)5.02429035 AU ± 1.68e-03
Orbital Period4.88204512 yr ± 2.43e-03
Physical Parameters
H (abs. magnitude)21.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.225″
Uncertainty3
Orbit TypeApollo
MOID0.062704 AU
Observations Used32
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-28
Last Observation Used2021-11-10
Observations (32)
Date Type RA Dec Mag Band Observatory
2021-09-28 09:34:40 C 01 54 54.232 +10 29 29.01 U F52
2021-09-28 09:51:08 C 01 54 52.559 +10 29 52.74 U F52
2021-09-28 10:07:40 C 01 54 50.891 +10 30 16.69 U F52
2021-09-28 13:10:22 C 01 54 32.189 +10 34 41.60 V F51
2021-09-28 13:11:32 C 01 54 32.059 +10 34 42.95 V F51
2021-09-29 07:23:50 C 01 52 41.46 +11 01 31.5 u H21
2021-09-29 07:30:53 C 01 52 40.71 +11 01 42.3 u H21
2021-09-29 08:46:14 C 01 52 32.90 +11 03 36.8 o 291
2021-09-29 09:01:21 C 01 52 31.30 +11 03 59.4 o 291
2021-09-29 09:16:29 C 01 52 29.65 +11 04 22.5 o 291
2021-09-30 08:29:18 C 01 49 59.773 +11 40 06.11 U F51
2021-09-30 08:50:39 C 01 49 57.319 +11 40 40.13 U F51
2021-09-30 09:13:20 C 01 49 54.722 +11 41 15.59 U F51
2021-10-01 09:57:41 C 01 47 01.66 +12 21 01.1 o 291
2021-10-01 10:20:32 C 01 46 58.81 +12 21 38.1 o 291
2021-10-01 10:45:01 C 01 46 55.82 +12 22 18.6 o 291
2021-10-07 08:49:00 C 01 26 05.339 +16 48 07.91 U F51
2021-10-07 09:22:56 C 01 25 59.178 +16 49 19.68 U F51
2021-10-07 09:41:14 C 01 25 55.852 +16 49 58.41 U F51
2021-10-13 04:58:31 C 00 56 18.80 +22 15 27.2 V G96
2021-10-13 05:05:25 C 00 56 17.00 +22 15 45.4 V G96
2021-10-13 05:12:19 C 00 56 15.23 +22 16 02.4 V G96
2021-10-13 05:19:15 C 00 56 13.41 +22 16 20.7 V G96
2021-10-25 05:05:31 C 23 16 04.41 +34 56 28.2 V G96
2021-10-25 05:13:02 C 23 16 01.06 +34 56 45.5 V G96
2021-10-25 05:20:36 C 23 15 57.68 +34 57 03.0 V G96
2021-10-25 05:28:07 C 23 15 54.30 +34 57 20.4 V G96
2021-10-30 02:58:26 C 22 21 36.98 +38 45 00.1 V I52
2021-10-30 03:14:52 C 22 21 29.06 +38 45 24.8 V I52
2021-10-30 03:23:30 C 22 21 24.85 +38 45 37.4 V I52
2021-11-10 02:58:29 C 20 25 06.20 +41 10 44.7 V V06
2021-11-10 03:02:21 C 20 25 04.72 +41 10 43.8 V V06