2021 SP

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4628477000
Semi-major axis (a)1.4520942000 AU
Inclination (i)4.75576000°
Long. of Asc. Node (Ω)174.53633000°
Arg. of Perihelion (ω)252.91218000°
Mean Anomaly (M)110.72787000°
Mean Motion (n)0.5632638600°/day
Perihelion dist (q)0.77999570 AU
Aphelion dist (Q)2.12419270 AU
Orbital Period1.74981520 yr
Physical Parameters
H (abs. magnitude)29.26
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual1.100″
Uncertainty7
Orbit TypeApollo
MOID0.000513 AU
Observations Used12
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-17
Observations (12)
Date Type RA Dec Mag Band Observatory
2021-09-15 08:42:31 C 23 52 30.05 -00 55 00.4 U I41
2021-09-15 09:54:14 C 23 52 17.72 -00 54 52.3 U I41
2021-09-16 09:43:14 C 23 50 37.95 -00 51 28.3 U I41
2021-09-16 09:43:44 C 23 50 37.54 -00 51 27.3 U I41
2021-09-17 07:28:29 C 23 36 41.67 -00 15 15.8 U I41
2021-09-17 07:28:59 C 23 36 38.87 -00 15 10.9 U I41
2021-09-17 07:29:49 C 23 36 34.03 -00 15 02.5 U I41
2021-09-17 07:30:20 C 23 36 31.18 -00 14 57.4 U I41
2021-09-17 08:07:11 C 23 32 23.70 -00 07 41.1 U I41
2021-09-17 08:07:41 C 23 32 19.66 -00 07 33.9 U I41
2021-09-17 08:09:53 C 23 32 01.84 -00 07 03.0 U I41
2021-09-17 08:10:23 C 23 31 57.73 -00 06 55.7 U I41