2021 SF1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1677478907 ± 2.87e-06
Semi-major axis (a)1.1717047215 AU ± 3.75e-06
Inclination (i)0.79406878° ± 1.26e-05
Long. of Asc. Node (Ω)204.29909993° ± 4.62e-05
Arg. of Perihelion (ω)213.28440167° ± 7.99e-05
Mean Anomaly (M)59.09227781° ± 5.38e-03
Mean Motion (n)0.7771144889°/day ± 3.73e-06
Perihelion dist (q)0.97515373 AU ± 4.59e-06
Aphelion dist (Q)1.36825572 AU ± 5.52e-06
Orbital Period1.26831541 yr ± 6.09e-06
Physical Parameters
H (abs. magnitude)27.19
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.213″
Uncertainty1
Orbit TypeApollo
MOID0.000145 AU
Observations Used54
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-27
Last Observation Used2022-02-26
Observations (58)
Date Type RA Dec Mag Band Observatory
2021-09-27 09:04:04 C 00 43 21.429 +13 43 24.73 U F51
2021-09-27 09:19:58 C 00 43 24.584 +13 43 55.28 U F51
2021-09-27 09:35:59 C 00 43 27.705 +13 44 25.65 U F51
2021-09-27 12:37:28 C 00 44 03.138 +13 49 53.28 V F51
2021-09-27 12:38:24 C 00 44 03.330 +13 49 54.97 V F51
2021-09-27 19:13:28 C 00 45 58.60 +14 01 23.5 V N51
2021-09-27 19:22:43 C 00 46 00.63 +14 01 41.0 V N51
2021-09-27 19:31:58 C 00 46 02.47 +14 01 57.3 V N51
2021-09-27 21:53:19 C 00 46 51.69 +14 05 40.5 V B49
2021-09-27 21:55:53 C 00 46 52.28 +14 05 46.6 V B49
2021-09-27 22:06:30 C 00 46 54.75 +14 06 06.4 V B49
2021-09-27 22:19:43 C 00 46 57.74 +14 06 32.6 V B49
2021-09-27 22:59:47 C 00 47 06.77 +14 07 50.8 V B37
2021-09-27 23:13:12 C 00 47 09.81 +14 08 17.5 V B37
2021-09-27 23:27:16 C 00 47 12.97 +14 08 44.8 V B37
2021-09-27 23:47:06 C 00 47 17.42 +14 09 23.4 V B37
2021-09-28 00:00:14 C 00 47 20.34 +14 09 48.1 V B37
2021-09-28 04:33:19 C 00 48 44.04 +14 18 39.1 u H21
2021-09-28 04:37:21 C 00 48 44.97 +14 18 47.3 u H21
2021-09-28 04:41:22 C 00 48 45.93 +14 18 55.3 u H21
2021-09-28 05:42:19 C 00 48 42.997 +14 21 14.53 V Z24
2021-09-28 05:48:30 C 00 48 44.586 +14 21 25.12 V Z24
2021-09-28 05:54:41 C 00 48 46.214 +14 21 35.78 V Z24
2021-09-29 07:33:42 C 00 57 01.24 +15 14 23.2 o 691
2021-09-29 07:53:25 C 00 57 06.35 +15 15 03.3 o 691
2021-09-29 08:14:00 C 00 57 11.62 +15 15 46.7 o 691
2021-09-29 17:32:19 C 01 00 18.72 +15 35 56.0 V D29
2021-09-29 17:52:41 C 01 00 24.37 +15 36 39.6 V D29
2021-09-29 18:13:02 C 01 00 30.07 +15 37 22.6 V D29
2021-10-02 11:35:19 C 01 27 38.88 +18 19 23.0 o 291
2021-10-02 11:36:48 C 01 27 39.52 +18 19 26.3 o 291
2021-10-02 11:38:16 C 01 27 40.18 +18 19 29.8 o 291
2021-10-02 11:45:51 C 01 27 56.530 +18 21 40.16 V T12
2021-10-02 11:46:38 C 01 27 56.839 +18 21 42.19 V T12
2021-10-02 11:47:20 C 01 27 57.113 +18 21 44.05 V T12
2021-10-02 13:18:14 C 01 28 34.230 +18 25 35.67 U F52
2021-10-02 13:36:40 C 01 28 41.919 +18 26 21.96 U F52
2021-10-02 13:55:03 C 01 28 49.693 +18 27 07.60 U F52
2021-10-03 07:26:05 C 01 38 27.570 +19 16 05.91 V I41
2021-10-03 11:35:15 C 01 40 23.54 +19 27 54.1 o 291
2021-10-03 11:39:14 C 01 40 25.52 +19 28 04.3 o 291
2021-10-04 22:42:32 C 02 03 00.10 +21 14 54.5 V B49
2021-10-04 22:43:34 C 02 03 00.75 +21 14 58.1 V B49
2021-10-05 11:20:24 C 02 11 56.074 +21 58 10.91 V T12
2021-10-05 11:20:55 C 02 11 56.403 +21 58 12.66 V T12
2021-10-05 11:21:26 C 02 11 56.720 +21 58 14.32 V T12
2021-10-05 11:22:06 C 02 11 57.133 +21 58 16.45 V T12
2021-10-05 11:23:44 C 02 11 58.161 +21 58 21.82 V T12
2021-10-05 11:25:01 C 02 11 58.950 +21 58 26.00 V T12
2021-10-07 13:54:36 C 02 55 15.158 +24 38 36.15 V T12