2009 CR4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4179608509 ± 1.76e-08
Semi-major axis (a)1.7522578198 AU ± 1.50e-09
Inclination (i)4.77735249° ± 3.81e-06
Long. of Asc. Node (Ω)324.54479031° ± 2.05e-05
Arg. of Perihelion (ω)243.83972435° ± 2.43e-05
Mean Anomaly (M)51.94614450° ± 4.53e-06
Mean Motion (n)0.4249279186°/day ± 5.45e-10
Perihelion dist (q)1.01988265 AU ± 3.08e-08
Aphelion dist (Q)2.48463299 AU ± 3.08e-08
Orbital Period2.31951406 yr ± 2.97e-09
Physical Parameters
H (abs. magnitude)21.67
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.250″
Uncertainty0
Orbit TypeAmor
MOID0.070385 AU
Observations Used89
Oppositions8
Arc Total2009-2023
First Observation Used2009-02-13
Last Observation Used2023-02-17
Observations (94)
Date Type RA Dec Mag Band Observatory
2009-02-13 02:44:26 C 08 36 36.71 +20 21 07.7 o 691
2009-02-13 03:08:00 C 08 36 34.71 +20 20 59.3 o 691
2009-02-13 03:31:34 C 08 36 32.51 +20 20 50.3 o 691
2009-02-13 04:18:15 C 08 36 25.45 +20 20 24.5 r 493
2009-02-13 04:21:00 C 08 36 25.26 +20 20 23.6 r 493
2009-02-13 04:23:44 C 08 36 25.05 +20 20 22.3 r 493
2009-02-13 07:37:23 C 08 36 10.08 +20 19 14.4 c 854
2009-02-13 07:46:49 C 08 36 09.12 +20 19 10.3 c 854
2009-02-13 07:56:13 C 08 36 08.25 +20 19 05.8 c 854
2009-02-13 19:00:14 C 08 35 15.05 +20 14 28.6 r 493
2009-02-13 19:04:46 C 08 35 14.66 +20 14 27.0 r 493
2009-02-13 19:09:14 C 08 35 14.27 +20 14 25.3 r 493
2009-02-13 22:00:40 C 08 34 58.64 +20 13 11.1 r J95
2009-02-13 22:09:08 C 08 34 57.83 +20 13 07.7 r J95
2009-02-13 22:17:34 C 08 34 57.12 +20 13 03.6 r J95
2009-02-14 07:58:01 C 08 34 07.23 +20 09 08.6 o 291
2009-02-14 08:19:57 C 08 34 05.19 +20 08 58.9 o 291
2009-02-14 08:40:32 C 08 34 03.25 +20 08 49.5 o 291
2009-02-15 06:35:43 C 08 32 12.33 +19 59 09.3 o H55
2009-02-15 06:46:49 C 08 32 11.34 +19 59 04.2 o H55
2009-02-15 06:57:53 C 08 32 10.32 +19 58 59.1 o H55
2009-02-16 07:41:11 C 08 30 04.49 +19 47 35.7 o 291
2009-02-16 07:47:30 C 08 30 03.89 +19 47 32.4 o 291
2009-02-19 07:47:40 C 08 23 55.50 +19 10 17.1 o 291
2009-02-19 07:53:45 C 08 23 54.94 +19 10 13.6 o 291
2009-02-19 07:53:46 C 08 23 54.82 +19 10 13.1 r 448
2009-02-19 08:00:42 C 08 23 54.29 +19 10 09.5 o 291
2009-02-19 08:29:49 C 08 23 51.45 +19 09 52.5 r 448
2009-02-19 08:59:14 C 08 23 48.78 +19 09 33.3 r 448
2009-02-20 04:16:42 C 08 22 12.98 +18 58 37.4 o 691
2009-02-20 04:39:54 C 08 22 10.83 +18 58 24.3 o 691
2009-02-20 05:01:01 C 08 22 08.01 +18 58 07.6 o H55
2009-02-20 05:03:05 C 08 22 08.64 +18 58 11.0 o 691
2009-02-20 05:07:11 C 08 22 07.43 +18 58 04.2 o H55
2009-02-20 05:17:16 C 08 22 06.50 +18 57 58.4 o H55
2009-02-24 04:59:11 C 08 14 08.95 +17 56 53.3 o 291
2009-02-24 05:04:58 C 08 14 08.46 +17 56 49.3 o 291
2009-02-24 05:10:48 C 08 14 07.89 +17 56 45.0 o 291
2009-02-26 04:28:05 C 08 10 20.96 +17 22 27.9 o 291
2009-02-26 04:34:04 C 08 10 20.40 +17 22 23.1 o 291
2009-02-26 04:39:44 C 08 10 19.93 +17 22 19.3 o 291
2009-02-27 05:29:43 C 08 08 23.35 +17 03 12.9 o 291
2009-02-27 05:35:26 C 08 08 22.85 +17 03 08.0 o 291
2009-02-27 05:42:06 C 08 08 22.28 +17 03 03.1 o 291
2009-03-03 02:37:01 C 08 01 34.83 +15 44 46.7 o 291
2009-03-03 02:42:41 C 08 01 34.45 +15 44 43.1 o 291
2009-03-03 02:48:19 C 08 01 34.01 +15 44 38.3 o 291
2009-03-12 01:31:21 C 07 48 57.92 +12 02 34.6 o H55
2009-03-12 01:35:11 C 07 48 57.69 +12 02 30.6 o H55
2009-03-12 01:38:09 C 07 48 57.52 +12 02 27.4 o H55