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
2021-10-07 13:55:02 C 02 55 15.519 +24 38 37.20 V T12
2021-10-07 13:55:52 C 02 55 16.239 +24 38 39.50 V T12
2021-10-11 02:04:55 C 04 33 49.60 +27 21 27.9 V J95
2021-10-11 02:12:42 C 04 33 58.95 +27 21 33.2 V J95
2021-10-11 02:26:26 C 04 34 15.38 +27 21 41.4 V J95
2022-01-07 09:56:41 C 11 19 54.284 -03 07 13.96 V G37
2022-01-07 10:08:43 C 11 19 53.929 -03 07 12.80 V G37
2022-02-26 11:44:27 C 10 00 31.521 +08 06 22.94 V T12