2012 DH4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5766034502 ± 3.19e-08
Semi-major axis (a)2.0318688844 AU ± 5.22e-08
Inclination (i)14.46791222° ± 6.62e-06
Long. of Asc. Node (Ω)168.97603129° ± 2.76e-06
Arg. of Perihelion (ω)69.16910165° ± 9.55e-06
Mean Anomaly (M)246.79734422° ± 6.19e-05
Mean Motion (n)0.3403053342°/day ± 1.31e-08
Perihelion dist (q)0.86028628 AU ± 6.85e-08
Aphelion dist (Q)3.20345149 AU ± 1.05e-07
Orbital Period2.89629984 yr ± 1.12e-07
Physical Parameters
H (abs. magnitude)20.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.313″
Uncertainty0
Orbit TypeApollo
MOID0.064284 AU
Observations Used365
Radar Obs Used2
Oppositions1
Arc Total2012-2015
First Observation Used2012-02-18
Last Observation Used2015-10-07
Observations (369)
Date Type RA Dec Mag Band Observatory
2012-03-14 23:19:51 C 11 58 15.73 +19 06 38.9 t 130
2012-03-14 23:21:45 C 11 58 19.38 +19 07 23.5 u J51
2012-03-14 23:37:04 C 11 58 24.77 +19 10 00.1 u J51
2012-03-14 23:51:04 C 11 58 29.67 +19 12 22.9 u J51
2012-03-15 00:18:16 C 11 58 36.33 +19 16 35.5 u 160
2012-03-15 00:22:09 C 11 58 37.72 +19 17 14.8 u 160
2012-03-15 00:24:02 C 11 58 38.67 +19 17 31.5 c A24
2012-03-15 00:24:24 C 11 58 38.77 +19 17 35.4 c A24
2012-03-15 00:24:46 C 11 58 38.92 +19 17 39.2 c A24
2012-03-15 00:25:08 C 11 58 39.04 +19 17 43.0 c A24
2012-03-15 00:25:31 C 11 58 39.16 +19 17 46.7 c A24
2012-03-15 00:25:53 C 11 58 39.30 +19 17 50.3 c A24
2012-03-15 00:26:02 C 11 58 39.08 +19 17 54.2 u 160
2012-03-15 01:22:57 C 11 58 59.71 +19 27 32.2 c A24
2012-03-15 01:23:19 C 11 58 59.85 +19 27 36.0 c A24
2012-03-15 01:23:42 C 11 58 59.97 +19 27 39.5 c A24
2012-03-15 01:24:04 C 11 59 00.09 +19 27 43.6 c A24
2012-03-15 01:24:27 C 11 59 00.25 +19 27 47.1 c A24
2012-03-15 03:49:33 C 12 00 03.69 +19 52 55.3 o G48
2012-03-15 03:50:06 C 12 00 03.90 +19 53 01.1 o G48
2012-03-15 03:52:25 C 12 00 04.76 +19 53 25.3 o G48
2012-03-15 03:53:00 C 12 00 05.01 +19 53 31.5 o G48
2012-03-15 03:54:08 C 12 00 05.40 +19 53 43.4 o G48
2012-03-15 03:54:44 C 12 00 05.64 +19 53 49.8 o G48
2012-03-15 06:43:08 C 12 01 08.16 +20 23 28.6 16.1 c 704
2012-03-15 06:59:05 C 12 01 14.13 +20 26 18.0 16.2 c 704
2012-03-15 07:15:01 C 12 01 20.06 +20 29 07.3 16.2 c 704
2012-03-15 07:30:58 C 12 01 26.02 +20 31 56.7 16.4 c 704
2012-03-15 07:46:54 C 12 01 31.98 +20 34 45.9 16.4 c 704
2012-03-15 10:50:45 C 12 02 42.64 +21 07 33.4 r 703
2012-03-15 10:55:32 C 12 02 44.52 +21 08 24.7 r 703
2012-03-15 11:00:22 C 12 02 46.42 +21 09 16.4 r 703
2012-03-15 11:05:08 C 12 02 48.30 +21 10 07.6 r 703
2012-03-15 18:42:14 C 12 06 14.41 +22 33 57.8 u 151
2012-03-15 18:43:05 C 12 06 14.78 +22 34 07.5 u 151
2012-03-15 18:43:56 C 12 06 15.16 +22 34 17.4 u 151
2012-03-15 21:08:58 C 12 07 18.01 +23 01 59.8 u A27
2012-03-15 21:17:33 C 12 07 21.72 +23 03 40.5 u A27
2012-03-15 21:20:00 C 12 07 22.81 +23 04 08.4 u A27
2012-03-15 21:34:42 C 12 07 29.22 +23 06 58.9 u A27
2012-03-15 21:35:21 C 12 07 29.28 +23 07 12.7 u C47
2012-03-15 21:36:50 C 12 07 29.92 +23 07 30.4 u C47
2012-03-15 21:39:35 C 12 07 31.32 +23 07 56.2 u A27
2012-03-15 21:40:13 C 12 07 31.40 +23 08 09.2 u C47
2012-03-15 21:42:33 C 12 07 32.39 +23 08 36.0 u C47
2012-03-15 21:44:24 C 12 07 33.21 +23 08 57.9 u C47
2012-03-15 21:47:12 C 12 07 34.43 +23 09 30.2 u C47
2012-03-15 21:48:42 C 12 07 35.08 +23 09 47.7 u C47
2012-03-15 21:50:06 C 12 07 35.70 +23 10 03.7 u C47
2012-03-15 22:00:37 C 12 07 40.73 +23 12 02.0 u A74
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-03-11 05:46:00 214010.3 1 Hz 2380 -1 -1
2012-03-12 05:48:00 205352.8 0.2 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)