2021 SB5

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4545976971 ± 8.24e-07
Semi-major axis (a)1.2026028925 AU ± 2.20e-08
Inclination (i)20.53320468° ± 3.10e-05
Long. of Asc. Node (Ω)187.47741399° ± 9.95e-06
Arg. of Perihelion (ω)11.61172588° ± 8.65e-05
Mean Anomaly (M)210.20360115° ± 2.00e-04
Mean Motion (n)0.7473583826°/day ± 2.05e-08
Perihelion dist (q)0.65590239 AU ± 9.91e-07
Aphelion dist (Q)1.74930340 AU ± 9.91e-07
Orbital Period1.31881345 yr ± 3.62e-08
Physical Parameters
H (abs. magnitude)20.95
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.148″
Uncertainty0
Orbit TypeApollo
MOID0.312037 AU
Observations Used53
Oppositions4
Arc Total2009-2025
First Observation Used2009-09-19
Last Observation Used2025-10-24
Observations (54)
Date Type RA Dec Mag Band Observatory
2025-09-28 21:39:55 C 01 46 15.159 +04 32 03.04 W O18
2025-10-24 02:48:18 C 00 59 32.740 -06 43 33.00 V 807
2025-10-24 03:09:31 C 00 59 31.170 -06 43 53.20 V 807
2025-10-24 03:30:43 C 00 59 29.540 -06 44 13.00 V 807