2009 RA4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4492300015 ± 2.34e-05
Semi-major axis (a)2.2666642706 AU ± 1.03e-04
Inclination (i)6.20112095° ± 2.24e-04
Long. of Asc. Node (Ω)358.14520379° ± 3.63e-05
Arg. of Perihelion (ω)345.26554424° ± 5.34e-04
Mean Anomaly (M)269.87600404° ± 1.19e-01
Mean Motion (n)0.2888228026°/day ± 1.97e-05
Perihelion dist (q)1.24841068 AU ± 7.77e-05
Aphelion dist (Q)3.28491786 AU ± 1.58e-04
Orbital Period3.41256395 yr ± 2.32e-04
Physical Parameters
H (abs. magnitude)21.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.298″
Uncertainty3
Orbit TypeAmor
MOID0.240545 AU
Observations Used38
Oppositions1
Arc Total2009-2009
First Observation Used2009-09-14
Last Observation Used2009-11-11
Observations (39)
Date Type RA Dec Mag Band Observatory
2009-09-14 06:01:28 C 23 57 52.31 -03 30 58.3 19.8 c 704
2009-09-14 06:18:19 C 23 57 52.33 -03 30 36.6 20.1 c 704
2009-09-14 06:52:05 C 23 57 52.33 -03 29 49.8 20.1 c 704
2009-09-14 07:08:56 C 23 57 52.40 -03 29 30.2 20.0 c 704
2009-09-14 23:28:53 C 23 58 01.41 -03 08 16.4 r J95
2009-09-14 23:35:01 C 23 58 01.43 -03 08 07.8 r J95
2009-09-14 23:39:27 C 23 58 01.45 -03 08 02.3 r J95
2009-09-15 03:42:40 C 23 58 04.35 -03 02 39.8 r H55
2009-09-15 03:49:11 C 23 58 04.37 -03 02 31.5 r H55
2009-09-15 03:55:41 C 23 58 04.39 -03 02 23.3 r H55
2009-09-15 06:12:20 C 23 58 05.31 -02 59 21.7 o 291
2009-09-15 06:17:57 C 23 58 05.33 -02 59 14.5 o 291
2009-09-15 06:24:55 C 23 58 05.32 -02 59 05.4 o 291
2009-09-15 07:47:03 C 23 58 05.37 -02 57 18.9 c 854
2009-09-15 07:53:59 C 23 58 05.29 -02 57 09.3 c 854
2009-09-15 08:00:54 C 23 58 05.39 -02 57 00.2 c 854
2009-09-18 03:51:27 C 23 58 37.47 -01 29 53.9 r H26
2009-09-18 03:54:56 C 23 58 37.38 -01 29 48.5 r H26
2009-09-18 03:58:22 C 23 58 37.35 -01 29 43.7 r H26
2009-09-18 04:01:45 C 23 58 37.33 -01 29 39.2 r H26
2009-09-19 22:29:52 C 23 58 53.30 -00 36 22.9 v 204
2009-09-19 22:38:59 C 23 58 53.30 -00 36 11.4 v 204
2009-09-20 00:21:19 C 23 58 53.23 -00 34 04.3 v 204
2009-09-21 03:59:30 C 23 59 03.64 +00 00 40.3 r I20
2009-09-21 04:05:44 C 23 59 03.63 +00 00 47.8 r I20
2009-09-21 04:11:57 C 23 59 03.62 +00 00 55.5 r I20
2009-09-24 16:41:17 C 23 59 32.11 +01 41 30.9 c D21
2009-09-24 16:52:14 C 23 59 32.08 +01 41 43.8 c D21
2009-09-24 17:03:15 C 23 59 32.05 +01 41 56.4 c D21
2009-09-28 05:56:56 C 00 00 03.88 +03 16 31.8 r G96
2009-09-28 06:07:49 C 00 00 03.88 +03 16 43.8 r G96
2009-09-28 06:18:38 C 00 00 03.88 +03 16 55.5 r G96
2009-10-11 02:54:42 C 00 03 14.06 +08 05 33.6 o H55
2009-10-11 03:00:44 C 00 03 14.08 +08 05 37.9 o H55
2009-10-21 08:09:36 C 00 08 10.71 +10 52 41.6 o 291
2009-10-21 08:15:03 C 00 08 10.84 +10 52 44.6 o 291
2009-10-21 08:25:54 C 00 08 11.07 +10 52 51.2 o 291
2009-11-11 07:57:26 C 00 26 59.02 +14 39 52.2 o 291
2009-11-11 08:03:24 C 00 26 59.36 +14 39 54.8 o 291