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
2021-09-09 20:21:00 C 22 47 12.15 +06 56 55.5 V 104
2021-09-10 03:01:41 C 22 47 01.71 +08 15 44.9 X W34
2021-09-10 03:12:09 C 22 47 01.15 +08 17 47.8 X W34
2021-09-10 03:24:46 C 22 47 00.41 +08 20 14.4 X W34
2021-09-10 03:54:41 C 22 47 01.56 +08 26 02.4 q 858
2021-09-10 03:59:13 C 22 47 01.33 +08 26 56.0 q 858
2021-09-10 04:03:44 C 22 47 01.08 +08 27 49.0 q 858
2021-09-10 20:17:00 C 22 46 35.22 +11 34 31.3 V K88
2021-09-10 20:20:55 C 22 46 35.03 +11 35 16.3 V K88
2021-09-10 20:24:50 C 22 46 34.84 +11 35 59.9 V K88
2021-09-11 07:13:02 C 22 46 22.124 +13 38 33.42 U F52
2021-09-11 07:28:44 C 22 46 21.263 +13 41 29.41 U F52
2021-09-11 07:44:30 C 22 46 20.391 +13 44 26.16 U F52
2021-09-11 08:00:16 C 22 46 19.494 +13 47 22.29 U F52
2021-09-11 20:13:51 C 22 46 01.27 +16 00 30.5 V K88
2021-09-11 20:18:17 C 22 46 01.03 +16 01 19.0 V K88
2021-09-11 20:24:02 C 22 46 00.83 +16 02 21.2 V K88
2021-09-12 19:57:58 C 22 45 30.60 +20 09 38.9 V 033
2021-09-12 19:59:03 C 22 45 30.56 +20 09 49.9 V 033
2021-09-12 20:00:08 C 22 45 30.52 +20 10 01.0 V 033
2021-09-13 07:09:45 C 22 45 18.253 +22 02 48.69 U F51
2021-09-13 07:28:22 C 22 45 17.302 +22 05 54.16 U F51
2021-09-13 07:47:02 C 22 45 16.307 +22 08 59.86 U F51
2021-09-13 08:05:44 C 22 45 15.292 +22 12 05.19 U F51
2021-09-15 05:16:37 C 22 44 23.35 +29 05 11.1 V G96
2021-09-15 05:24:15 C 22 44 23.00 +29 06 16.3 V G96
2021-09-15 05:31:50 C 22 44 22.61 +29 07 20.5 V G96
2021-09-15 05:39:26 C 22 44 22.21 +29 08 25.9 V G96