2021 RX4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4175602494 ± 7.60e-05
Semi-major axis (a)1.6983251557 AU ± 2.15e-04
Inclination (i)12.02339673° ± 1.53e-03
Long. of Asc. Node (Ω)165.32559306° ± 4.65e-04
Arg. of Perihelion (ω)151.68576312° ± 4.11e-04
Mean Anomaly (M)335.84347835° ± 1.33e-01
Mean Motion (n)0.4453290359°/day ± 8.46e-05
Perihelion dist (q)0.98917208 AU ± 1.80e-04
Aphelion dist (Q)2.40747823 AU ± 3.31e-04
Orbital Period2.21325403 yr ± 4.20e-04
Physical Parameters
H (abs. magnitude)23.82
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.344″
Uncertainty3
Orbit TypeApollo
MOID0.012784 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-08
Last Observation Used2021-10-14
Observations (31)
Date Type RA Dec Mag Band Observatory
2021-09-08 10:35:52 C 03 35 59.10 +06 45 56.1 V G96
2021-09-08 10:50:44 C 03 35 58.10 +06 44 11.5 V G96
2021-09-08 10:58:09 C 03 35 57.48 +06 43 18.6 V G96
2021-09-08 12:00:23 C 03 35 52.94 +06 36 00.1 V G96
2021-09-08 12:00:59 C 03 35 52.86 +06 35 54.6 V G96
2021-09-08 12:01:34 C 03 35 52.83 +06 35 50.7 V G96
2021-09-09 03:10:52 C 03 35 14.75 +04 51 53.2 V 033
2021-09-09 03:11:47 C 03 35 14.69 +04 51 47.0 V 033
2021-09-09 03:12:42 C 03 35 14.65 +04 51 41.2 V 033
2021-09-09 03:13:51 C 03 35 14.57 +04 51 33.7 V 033
2021-09-09 07:56:05 C 03 35 05.56 +04 21 03.8 u H21
2021-09-09 07:58:38 C 03 35 05.38 +04 20 47.5 u H21
2021-09-09 08:03:52 C 03 35 05.04 +04 20 14.0 u H21
2021-09-09 10:21:01 C 03 34 56.73 +04 05 32.3 V 734
2021-09-09 10:31:19 C 03 34 56.02 +04 04 26.4 V 734
2021-09-10 01:56:07 C 03 34 19.29 +02 28 45.8 X L01
2021-09-10 01:59:51 C 03 34 19.02 +02 28 23.7 X L01
2021-09-10 02:01:43 C 03 34 18.90 +02 28 12.6 X L01
2021-09-10 02:04:14 C 03 34 18.78 +02 27 57.9 X L01
2021-09-10 02:19:03 C 03 34 17.84 +02 26 21.2 V 033
2021-09-10 02:20:08 C 03 34 17.78 +02 26 15.2 V 033
2021-09-11 09:06:31 C 03 33 05.20 -00 26 11.2 V G96
2021-09-11 09:13:22 C 03 33 04.81 -00 26 46.9 V G96
2021-09-11 09:20:14 C 03 33 04.40 -00 27 22.8 V G96
2021-09-11 09:27:06 C 03 33 03.90 -00 27 59.4 V G96
2021-09-18 14:15:59 C 03 26 10.574 -11 29 01.25 U F51
2021-09-18 14:33:03 C 03 26 09.537 -11 29 47.84 U F51
2021-09-18 14:50:07 C 03 26 08.488 -11 30 34.35 U F51
2021-10-14 11:46:55 C 02 55 08.534 -23 17 59.15 U F51
2021-10-14 12:03:41 C 02 55 07.457 -23 18 02.55 U F51
2021-10-14 12:37:12 C 02 55 05.306 -23 18 09.34 U F51