2021 WW

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2753646000
Semi-major axis (a)1.3301169000 AU
Inclination (i)23.52214000°
Long. of Asc. Node (Ω)235.37503000°
Arg. of Perihelion (ω)138.16131000°
Mean Anomaly (M)244.49624000°
Mean Motion (n)0.6424943800°/day
Perihelion dist (q)0.96384980 AU
Aphelion dist (Q)1.69638400 AU
Orbital Period1.53403310 yr
Physical Parameters
H (abs. magnitude)24.27
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.520″
Uncertainty7
Orbit TypeApollo
MOID0.028015 AU
Observations Used22
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-12-10
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-11-25 09:19:09 C 04 06 28.464 -25 30 38.23 U F52
2021-11-25 09:32:51 C 04 06 29.352 -25 31 49.07 U F52
2021-11-25 09:46:33 C 04 06 30.225 -25 32 58.98 U F52
2021-11-26 09:17:30 C 04 08 37.506 -27 21 22.80 U F51
2021-11-26 09:25:21 C 04 08 37.914 -27 21 55.87 U F51
2021-11-26 09:33:14 C 04 08 38.325 -27 22 28.98 U F51
2021-11-26 09:41:10 C 04 08 38.741 -27 23 02.28 U F51
2021-11-27 00:56:26 C 04 09 46.41 -28 21 41.9 V L81
2021-11-27 01:36:37 C 04 09 48.48 -28 24 05.5 V L81
2021-11-27 04:54:55 C 04 10 07.19 -28 36 05.0 u 807
2021-11-27 05:02:45 C 04 10 07.58 -28 36 32.7 u 807
2021-11-27 05:10:37 C 04 10 07.95 -28 37 00.6 u 807
2021-11-27 05:29:36 C 04 10 13.07 -28 39 29.3 o 691
2021-11-27 05:42:54 C 04 10 13.68 -28 40 19.1 o 691
2021-11-28 05:25:53 C 04 11 47.52 -29 56 15.0 u 807
2021-11-28 05:29:49 C 04 11 47.67 -29 56 26.8 u 807
2021-11-28 05:33:44 C 04 11 47.85 -29 56 37.4 u 807
2021-12-01 02:40:19 C 04 15 34.64 -32 39 13.6 V 807
2021-12-01 02:45:38 C 04 15 34.78 -32 39 23.6 V 807
2021-12-01 02:50:58 C 04 15 34.93 -32 39 33.9 V 807
2021-12-04 04:49:27 C 04 18 25.28 -34 26 46.2 V 807
2021-12-04 04:54:46 C 04 18 25.42 -34 26 52.5 V 807
2021-12-04 05:00:05 C 04 18 25.51 -34 26 57.9 V 807
2021-12-10 05:15:16 C 04 22 26.29 -36 08 38.1 V 807
2021-12-10 05:31:12 C 04 22 26.47 -36 08 43.7 V 807
2021-12-10 05:47:10 C 04 22 26.66 -36 08 48.9 V 807