2021 SR3

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5072984594 ± 4.84e-06
Semi-major axis (a)2.1836397659 AU ± 2.30e-05
Inclination (i)0.67026456° ± 5.32e-06
Long. of Asc. Node (Ω)147.75905016° ± 1.26e-04
Arg. of Perihelion (ω)286.32166390° ± 1.28e-04
Mean Anomaly (M)81.19266875° ± 7.00e-03
Mean Motion (n)0.3054504606°/day ± 4.82e-06
Perihelion dist (q)1.07588268 AU ± 1.55e-05
Aphelion dist (Q)3.29139686 AU ± 3.62e-05
Orbital Period3.22679587 yr ± 5.09e-05
Physical Parameters
H (abs. magnitude)22.71
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.235″
Uncertainty1
Orbit TypeAmor
MOID0.090362 AU
Observations Used237
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-29
Last Observation Used2022-02-20
Observations (253)
Date Type RA Dec Mag Band Observatory
2022-02-20 02:34:51 C 08 17 05.79 +19 30 39.4 u H21
2022-02-20 02:39:31 C 08 17 05.99 +19 30 39.4 u H21
2022-02-20 02:43:54 C 08 17 06.18 +19 30 39.1 u H21