2021 SK87

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3090213000
Semi-major axis (a)1.4230361000 AU
Inclination (i)3.63114000°
Long. of Asc. Node (Ω)6.43674000°
Arg. of Perihelion (ω)25.90709000°
Mean Anomaly (M)145.06782000°
Mean Motion (n)0.5806042300°/day
Perihelion dist (q)0.98328760 AU
Aphelion dist (Q)1.86278460 AU
Orbital Period1.69755510 yr
Physical Parameters
H (abs. magnitude)26.34
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.500″
Uncertainty7
Orbit TypeApollo
MOID0.002280 AU
Observations Used13
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-03
Observations (13)
Date Type RA Dec Mag Band Observatory
2021-09-22 04:17:42 C 21 33 13.53 -36 01 28.3 W W84
2021-09-30 06:59:58 C 21 05 34.76 -19 37 53.3 W I41
2021-09-30 08:06:13 C 21 05 23.97 -19 16 01.1 V T08
2021-09-30 08:10:52 C 21 05 20.84 -19 14 34.1 V T08
2021-09-30 08:18:50 C 21 05 15.53 -19 12 03.9 V T08
2021-09-30 08:33:26 C 21 05 05.79 -19 07 24.9 V T08
2021-10-01 05:45:42 C 20 53 56.96 -10 20 45.3 W I41
2021-10-01 05:46:12 C 20 53 56.54 -10 20 29.0 W I41
2021-10-02 05:23:34 C 20 30 50.91 +09 10 12.3 W I41
2021-10-02 05:24:04 C 20 30 49.96 +09 10 48.5 W I41
2021-10-03 05:29:10 C 19 28 48.93 +46 47 05.5 W I41
2021-10-03 05:29:40 C 19 28 46.38 +46 47 55.0 W I41
2021-10-03 16:11:08 S 18 22 01.64 +63 11 00.5 W C51