2021 RW4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3828422000
Semi-major axis (a)1.7296950000 AU
Inclination (i)14.51269000°
Long. of Asc. Node (Ω)343.92880000°
Arg. of Perihelion (ω)8.03062000°
Mean Anomaly (M)302.26264000°
Mean Motion (n)0.4332611900°/day
Perihelion dist (q)1.06749480 AU
Aphelion dist (Q)2.39189520 AU
Orbital Period2.27485800 yr
Physical Parameters
H (abs. magnitude)25.07
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.740″
Uncertainty7
Orbit TypeAmor
MOID0.060418 AU
Observations Used75
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-09-15
Observations (78)
Date Type RA Dec Mag Band Observatory
2021-09-02 07:32:07 C 22 52 12.28 -27 31 33.3 V I41
2021-09-02 08:33:20 C 22 52 08.39 -27 21 41.0 V I41
2021-09-04 07:05:55 C 22 50 51.14 -19 20 35.9 V I41
2021-09-04 07:32:50 C 22 50 49.40 -19 15 40.4 V I41
2021-09-08 22:29:25 C 22 47 41.91 +02 35 45.0 o K88
2021-09-08 22:35:15 C 22 47 41.58 +02 36 56.5 o K88
2021-09-08 23:21:47 C 22 47 39.08 +02 46 16.7 o K88
2021-09-08 23:23:52 C 22 47 38.99 +02 46 41.4 o K88
2021-09-08 23:25:54 C 22 47 38.86 +02 47 05.9 o K88
2021-09-08 23:27:15 C 22 47 38.80 +02 47 22.0 o K88
2021-09-08 23:39:24 C 22 47 38.13 +02 49 49.2 o K88
2021-09-08 23:42:31 C 22 47 37.99 +02 50 26.3 o K88
2021-09-08 23:45:37 C 22 47 37.79 +02 51 03.5 o K88
2021-09-08 23:50:38 C 22 47 37.56 +02 52 04.6 o K88
2021-09-08 23:56:55 C 22 47 37.23 +02 53 19.7 o K88
2021-09-09 00:36:43 C 22 47 36.18 +03 01 13.6 V 033
2021-09-09 00:37:12 C 22 47 36.15 +03 01 19.5 V 033
2021-09-09 00:37:41 C 22 47 36.11 +03 01 25.4 V 033
2021-09-09 00:54:52 C 22 47 34.71 +03 05 01.8 V L01
2021-09-09 00:56:50 C 22 47 34.63 +03 05 25.0 V L01
2021-09-09 00:58:48 C 22 47 34.51 +03 05 48.7 V L01
2021-09-09 01:00:46 C 22 47 34.41 +03 06 12.0 V L01
2021-09-09 01:02:44 C 22 47 34.32 +03 06 36.5 V L01
2021-09-09 01:04:51 C 22 47 34.21 +03 07 01.5 V L01
2021-09-09 04:37:13 C 22 47 36.48 +03 49 53.9 q 858
2021-09-09 04:43:04 C 22 47 36.15 +03 51 04.5 q 858
2021-09-09 04:48:57 C 22 47 35.84 +03 52 15.2 q 858
2021-09-09 05:10:43 C 22 47 33.16 +03 56 30.5 V 734
2021-09-09 05:16:57 C 22 47 32.80 +03 57 45.2 V 734
2021-09-09 05:23:04 C 22 47 32.48 +03 58 58.1 V 734
2021-09-09 05:35:36 C 22 47 33.80 +04 01 40.7 V G96
2021-09-09 05:52:02 C 22 47 32.84 +04 04 57.7 V G96
2021-09-09 06:00:15 C 22 47 32.33 +04 06 36.3 V G96
2021-09-09 19:27:52 C 22 47 14.59 +06 46 32.8 q C82
2021-09-09 19:37:43 C 22 47 14.22 +06 48 28.5 q C82
2021-09-09 19:48:21 C 22 47 13.65 +06 50 37.3 q C82
2021-09-09 19:49:21 C 22 47 13.45 +06 50 36.8 V K51
2021-09-09 19:52:22 C 22 47 13.29 +06 51 12.9 V K51
2021-09-09 19:55:24 C 22 47 13.16 +06 51 48.8 V K51
2021-09-09 20:04:16 C 22 47 12.96 +06 53 37.4 V 104
2021-09-09 20:08:25 C 22 47 12.16 +06 54 14.0 V 033
2021-09-09 20:09:04 C 22 47 12.13 +06 54 21.9 V 033
2021-09-09 20:09:14 C 22 47 12.06 +06 54 27.9 V 246
2021-09-09 20:09:38 C 22 47 12.05 +06 54 32.9 V 246
2021-09-09 20:09:44 C 22 47 12.10 +06 54 29.8 V 033
2021-09-09 20:09:50 C 22 47 12.71 +06 54 43.2 V 104
2021-09-09 20:10:03 C 22 47 11.99 +06 54 37.8 V 246
2021-09-09 20:10:27 C 22 47 11.96 +06 54 42.0 V 246
2021-09-09 20:10:52 C 22 47 11.99 +06 54 46.7 V 246
2021-09-09 20:15:25 C 22 47 12.41 +06 55 49.5 V 104