2021 SW

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3406597000
Semi-major axis (a)1.2072605000 AU
Inclination (i)3.47151000°
Long. of Asc. Node (Ω)0.25818000°
Arg. of Perihelion (ω)277.28275000°
Mean Anomaly (M)94.60709000°
Mean Motion (n)0.7430235900°/day
Perihelion dist (q)0.79599550 AU
Aphelion dist (Q)1.61852550 AU
Orbital Period1.32648240 yr
Physical Parameters
H (abs. magnitude)27.99
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.550″
Uncertainty8
Orbit TypeApollo
MOID0.003136 AU
Observations Used11
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-27
Observations (11)
Date Type RA Dec Mag Band Observatory
2021-09-25 09:37:08 C 00 00 41.478 +04 11 59.60 U F52
2021-09-25 09:53:36 C 00 00 39.131 +04 12 45.79 U F52
2021-09-25 10:10:08 C 00 00 36.777 +04 13 32.20 U F52
2021-09-25 10:26:38 C 00 00 34.443 +04 14 17.51 U F52
2021-09-26 09:46:47 C 23 59 18.300 +05 08 47.47 U F51
2021-09-26 09:55:09 C 23 59 17.369 +05 09 03.80 U F51
2021-09-26 10:26:28 C 23 59 13.897 +05 10 05.48 U F51
2021-09-26 10:35:56 C 23 59 12.861 +05 10 23.80 U F51
2021-09-27 04:00:52 C 23 58 34.82 +05 39 44.3 u H21
2021-09-27 04:05:31 C 23 58 34.45 +05 39 51.7 u H21
2021-09-27 04:13:34 C 23 58 33.78 +05 40 04.6 u H21