2021 PW4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3857149000
Semi-major axis (a)1.6419072000 AU
Inclination (i)1.19761000°
Long. of Asc. Node (Ω)188.38285000°
Arg. of Perihelion (ω)99.82913000°
Mean Anomaly (M)24.71093000°
Mean Motion (n)0.4684693100°/day
Perihelion dist (q)1.00859910 AU
Aphelion dist (Q)2.27521530 AU
Orbital Period2.10388940 yr
Physical Parameters
H (abs. magnitude)24.91
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.760″
Uncertainty6
Orbit TypeAmor
MOID0.019281 AU
Observations Used81
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-09
Observations (85)
Date Type RA Dec Mag Band Observatory
2021-08-12 08:56:05 C 21 01 57.093 +07 19 19.16 U F51
2021-08-12 09:13:05 C 21 02 06.484 +07 18 42.07 U F51
2021-08-12 09:30:06 C 21 02 15.848 +07 18 04.92 U F51
2021-08-12 21:56:07 C 21 09 33.35 +06 49 47.2 V A17
2021-08-12 22:07:26 C 21 09 39.34 +06 49 22.4 V A17
2021-08-12 22:18:20 C 21 09 45.08 +06 49 00.9 V A17
2021-08-13 00:10:55 C 21 10 45.35 +06 44 54.5 V Z99
2021-08-13 00:14:07 C 21 10 47.04 +06 44 47.6 V Z99
2021-08-13 00:17:01 C 21 10 48.56 +06 44 41.5 V Z99
2021-08-13 00:20:05 C 21 10 50.15 +06 44 35.0 V Z99
2021-08-13 00:23:19 C 21 10 51.83 +06 44 28.6 V Z99
2021-08-13 22:35:35 C 21 22 33.08 +06 00 09.5 V A17
2021-08-13 22:53:03 C 21 22 41.09 +05 59 35.9 V A17
2021-08-13 23:10:01 C 21 22 48.83 +05 59 03.7 V A17
2021-08-14 23:58:44 C 21 34 10.54 +05 13 51.5 V K38
2021-08-15 00:14:30 C 21 34 16.74 +05 13 23.8 V K38
2021-08-15 00:30:22 C 21 34 22.94 +05 12 56.2 V K38
2021-08-15 00:46:15 C 21 34 29.20 +05 12 28.5 V K38
2021-08-15 20:40:48 C 21 42 40.03 +04 39 02.5 V 033
2021-08-15 20:41:13 C 21 42 40.17 +04 39 01.8 V 033
2021-08-15 20:41:38 C 21 42 40.29 +04 39 01.0 V 033
2021-08-15 20:42:13 C 21 42 40.51 +04 38 59.9 V 033
2021-08-27 08:27:08 C 22 41 17.15 -00 03 09.1 o 691
2021-08-27 08:43:11 C 22 41 18.57 -00 03 19.6 o 691
2021-08-27 08:59:15 C 22 41 19.94 -00 03 29.8 o 691
2021-08-30 09:14:21 C 22 48 24.848 -00 46 58.77 U F51
2021-08-30 09:48:36 C 22 48 27.030 -00 47 18.02 U F51
2021-08-30 10:05:48 C 22 48 28.116 -00 47 27.56 U F51
2021-09-09 09:24:14 C 23 02 32.388 -02 32 02.30 U F52
2021-09-09 09:40:52 C 23 02 32.809 -02 32 07.62 U F52
2021-09-09 09:57:32 C 23 02 33.230 -02 32 13.85 U F52
2021-09-09 10:14:15 C 23 02 33.645 -02 32 19.31 U F52
2021-09-10 08:46:31 C 23 03 26.14 -02 39 52.1 o 691
2021-09-10 08:54:35 C 23 03 26.35 -02 39 54.7 o 691
2021-09-10 09:02:38 C 23 03 26.58 -02 39 57.1 o 691