2021 WK1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6137730000
Semi-major axis (a)2.5610612000 AU
Inclination (i)0.46912000°
Long. of Asc. Node (Ω)261.52152000°
Arg. of Perihelion (ω)160.35271000°
Mean Anomaly (M)349.90590000°
Mean Motion (n)0.2404773300°/day
Perihelion dist (q)0.98915100 AU
Aphelion dist (Q)4.13297140 AU
Orbital Period4.09854710 yr
Physical Parameters
H (abs. magnitude)26.27
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.780″
Uncertainty5
Orbit TypeApollo
MOID0.002819 AU
Observations Used65
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-12-13
Observations (68)
Date Type RA Dec Mag Band Observatory
2021-11-27 05:17:50 C 23 00 16.343 +02 36 02.15 U F52
2021-11-27 05:35:12 C 23 00 28.773 +02 38 48.21 U F52
2021-11-27 05:52:34 C 23 00 41.310 +02 41 35.17 U F52
2021-11-27 08:07:57 C 23 02 24.209 +03 03 45.45 V F51
2021-11-27 08:08:38 C 23 02 24.771 +03 03 52.23 V F51
2021-11-27 21:52:06 C 23 17 04.09 +05 40 38.9 V J95
2021-11-27 21:54:41 C 23 17 07.09 +05 41 14.3 V J95
2021-11-27 22:01:19 C 23 17 14.80 +05 42 44.3 V J95
2021-11-27 22:48:01 C 23 18 06.46 +05 54 12.4 V I93
2021-11-27 22:57:33 C 23 18 17.91 +05 56 23.3 V I93
2021-11-27 23:54:29 C 23 20 01.76 +06 11 36.5 X W34
2021-11-28 00:05:34 C 23 20 14.52 +06 14 14.3 X W34
2021-11-28 00:16:39 C 23 20 27.43 +06 16 53.9 X W34
2021-11-28 01:27:27 C 23 22 06.13 +06 34 08.6 X 858
2021-11-28 01:31:59 C 23 22 11.61 +06 35 15.9 X 858
2021-11-28 01:36:37 C 23 22 17.19 +06 36 24.5 X 858
2021-11-28 01:48:30 C 23 22 34.58 +06 39 48.0 V I52
2021-11-28 01:48:45 C 23 22 34.86 +06 39 51.7 V I52
2021-11-28 01:48:59 C 23 22 35.15 +06 39 55.0 V I52
2021-11-28 01:49:13 C 23 22 35.43 +06 39 58.6 V I52
2021-11-29 01:36:05 C 00 08 44.34 +14 38 58.7 V I52
2021-11-29 01:36:19 C 00 08 44.94 +14 39 05.0 V I52
2021-11-29 01:36:34 C 00 08 45.54 +14 39 11.3 V I52
2021-11-29 01:36:48 C 00 08 46.13 +14 39 17.6 V I52
2021-11-30 00:38:59 C 01 39 36.82 +27 04 36.9 V 033
2021-11-30 00:39:19 C 01 39 38.63 +27 04 48.7 V 033
2021-11-30 00:39:39 C 01 39 40.43 +27 04 59.9 V 033
2021-11-30 04:12:22 C 02 01 39.00 +29 20 38.8 V 703
2021-11-30 04:33:35 C 02 03 44.25 +29 32 58.5 V I52
2021-11-30 04:36:20 C 02 04 00.50 +29 34 34.1 V 703
2021-11-30 04:46:00 C 02 04 58.08 +29 40 08.5 V I52
2021-11-30 04:46:28 C 02 05 00.84 +29 40 24.4 V I52
2021-11-30 04:46:55 C 02 05 03.57 +29 40 40.2 V I52
2021-12-01 22:54:12 C 06 34 58.13 +33 29 28.3 V Z80
2021-12-01 23:02:26 C 06 35 29.91 +33 27 37.9 V Z80
2021-12-01 23:10:59 C 06 36 02.76 +33 25 43.5 V Z80
2021-12-02 08:51:59 C 07 08 48.80 +31 12 57.9 V I52
2021-12-02 08:52:14 C 07 08 49.46 +31 12 54.7 V I52
2021-12-02 09:11:24 C 07 09 40.60 +31 08 32.9 V I52
2021-12-02 09:11:39 C 07 09 41.22 +31 08 29.5 V I52
2021-12-02 09:32:47 C 07 10 36.92 +31 03 39.3 V I52
2021-12-02 09:40:50 C 07 10 57.98 +31 01 48.1 V I52
2021-12-02 10:34:30 C 07 13 15.97 +30 49 22.2 V I52
2021-12-02 10:34:44 C 07 13 16.57 +30 49 18.9 V I52
2021-12-02 12:31:26 C 07 18 10.50 +30 21 57.8 U I41
2021-12-02 12:31:56 C 07 18 11.68 +30 21 51.1 U I41
2021-12-02 12:32:06 C 07 18 12.11 +30 21 48.4 U I41
2021-12-02 12:32:36 C 07 18 13.26 +30 21 41.6 U I41
2021-12-02 12:33:28 C 07 18 15.46 +30 21 28.0 U I41
2021-12-02 12:33:58 C 07 18 16.62 +30 21 21.3 U I41