2021 WN

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6419850032 ± 1.45e-04
Semi-major axis (a)1.3864492409 AU ± 4.10e-04
Inclination (i)8.98737913° ± 3.41e-03
Long. of Asc. Node (Ω)86.35718831° ± 6.11e-03
Arg. of Perihelion (ω)215.10010022° ± 7.34e-03
Mean Anomaly (M)198.43124736° ± 4.11e-01
Mean Motion (n)0.6037488475°/day ± 2.68e-04
Perihelion dist (q)0.49636962 AU ± 2.49e-04
Aphelion dist (Q)2.27652886 AU ± 7.02e-04
Orbital Period1.63251042 yr ± 7.24e-04
Physical Parameters
H (abs. magnitude)21.71
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.468″
Uncertainty3
Orbit TypeApollo
MOID0.096555 AU
Observations Used79
Oppositions1
Arc Total2021-2021
First Observation Used2021-11-23
Last Observation Used2021-12-12
Observations (80)
Date Type RA Dec Mag Band Observatory
2021-11-27 03:15:46 C 02 36 55.68 -08 14 19.2 u 807
2021-11-27 03:20:17 C 02 36 55.60 -08 14 00.2 u 807
2021-11-27 03:24:45 C 02 36 55.51 -08 13 41.6 u 807
2021-11-28 08:51:13 C 02 36 29.549 -06 19 46.54 U F51
2021-11-28 09:07:21 C 02 36 29.179 -06 18 47.54 U F51
2021-11-28 09:23:28 C 02 36 28.813 -06 17 48.38 U F51
2021-11-28 09:39:36 C 02 36 28.452 -06 16 49.47 U F51
2021-11-29 03:43:03 C 02 36 16.47 -05 12 35.9 u 807
2021-11-29 03:47:00 C 02 36 16.41 -05 12 22.5 u 807
2021-11-29 03:51:01 C 02 36 16.34 -05 12 08.8 u 807
2021-11-29 05:52:49 C 02 36 15.45 -05 05 53.2 V 703
2021-11-29 06:00:23 C 02 36 15.36 -05 05 27.0 V 703
2021-11-29 06:15:30 C 02 36 15.23 -05 04 38.0 V 703
2021-12-02 03:54:08 C 02 35 52.77 -01 37 01.8 V I52
2021-12-02 03:57:28 C 02 35 52.77 -01 36 53.5 V I52
2021-12-02 04:00:47 C 02 35 52.76 -01 36 44.7 V I52
2021-12-02 04:02:53 C 02 35 52.74 -01 36 38.7 V I52
2021-12-05 02:49:37 C 02 35 58.44 +01 10 26.0 u 807
2021-12-05 02:57:25 C 02 35 58.40 +01 10 42.6 u 807
2021-12-05 03:05:16 C 02 35 58.38 +01 10 59.7 u 807
2021-12-05 04:16:18 C 02 35 59.34 +01 12 59.8 V I52
2021-12-05 04:19:59 C 02 35 59.36 +01 13 08.4 V I52
2021-12-05 04:23:39 C 02 35 59.35 +01 13 15.2 V I52
2021-12-08 07:53:55 C 02 36 32.86 +03 35 47.9 o 691
2021-12-08 08:02:11 C 02 36 32.93 +03 36 01.4 o 691
2021-12-08 08:10:27 C 02 36 32.99 +03 36 15.9 o 691
2021-12-12 05:37:30 C 02 37 49.45 +05 58 04.9 V V06
2021-12-12 05:39:26 C 02 37 49.47 +05 58 07.5 V V06
2021-12-12 05:41:22 C 02 37 49.48 +05 58 10.7 V V06
2021-12-12 05:43:18 C 02 37 49.52 +05 58 12.9 V V06