2021 WN4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5328066000
Semi-major axis (a)2.1689063000 AU
Inclination (i)8.20195000°
Long. of Asc. Node (Ω)75.20277000°
Arg. of Perihelion (ω)352.51734000°
Mean Anomaly (M)87.78025000°
Mean Motion (n)0.3085623200°/day
Perihelion dist (q)1.01329870 AU
Aphelion dist (Q)3.32451390 AU
Orbital Period3.19419320 yr
Physical Parameters
H (abs. magnitude)24.98
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.820″
Uncertainty6
Orbit TypeAmor
MOID0.028904 AU
Observations Used58
Oppositions1
Arc Total
First Observation Used
Last Observation Used2022-01-04
Observations (65)
Date Type RA Dec Mag Band Observatory
2021-12-07 00:15:18 C 06 57 11.01 +25 02 56.8 V Z99
2021-12-07 00:17:18 C 06 57 12.58 +25 03 17.7 V Z99
2021-12-07 00:19:18 C 06 57 14.13 +25 03 38.3 V Z99
2021-12-07 00:21:17 C 06 57 15.69 +25 03 58.2 V Z99
2021-12-07 00:23:16 C 06 57 17.23 +25 04 18.5 V Z99
2021-12-07 01:48:44 C 06 58 21.36 +25 18 58.8 V 033
2021-12-07 01:49:53 C 06 58 22.28 +25 19 10.5 V 033
2021-12-07 01:51:03 C 06 58 23.14 +25 19 22.0 V 033
2021-12-08 08:50:58 C 07 22 35.21 +29 59 16.6 V G96
2021-12-08 08:58:28 C 07 22 40.31 +30 00 16.8 V G96
2021-12-08 09:05:58 C 07 22 45.39 +30 01 16.9 V G96
2021-12-08 09:13:26 C 07 22 50.44 +30 02 16.2 V G96
2022-01-04 08:10:15 C 09 56 04.36 +47 20 45.6 u H21
2022-01-04 08:24:33 C 09 56 04.31 +47 20 47.5 u H21
2022-01-04 08:41:57 C 09 56 04.27 +47 20 49.7 u H21