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
2012-03-10 00:45:06 C 11 28 37.77 +04 47 17.8 o B75
2012-03-10 00:45:59 C 11 28 37.88 +04 47 21.7 o B75
2012-03-10 05:25:36 C 11 29 24.76 +05 12 32.8 u 807
2012-03-10 05:26:44 C 11 29 25.21 +05 12 38.5 u 807
2012-03-10 05:27:48 C 11 29 25.38 +05 12 43.3 u 807
2012-03-10 05:28:53 C 11 29 25.53 +05 12 48.8 u 807
2012-03-10 05:30:01 C 11 29 25.69 +05 12 55.1 u 807
2012-03-10 05:31:05 C 11 29 25.89 +05 13 00.7 u 807
2012-03-10 05:32:10 C 11 29 26.06 +05 13 06.1 u 807
2012-03-10 05:33:17 C 11 29 26.18 +05 13 11.5 u 807
2012-03-10 05:38:49 C 11 29 27.03 +05 13 40.4 u 807
2012-03-10 05:42:40 C 11 29 27.64 +05 14 00.9 u 807
2012-03-10 06:32:35 C 11 29 36.50 +05 16 53.0 t H21
2012-03-10 06:35:38 C 11 29 36.98 +05 17 09.0 t H21
2012-03-10 06:38:41 C 11 29 37.45 +05 17 24.9 t H21
2012-03-10 06:41:44 C 11 29 37.91 +05 17 40.7 t H21
2012-03-10 06:44:31 C 11 29 38.33 +05 17 55.2 t H21
2012-03-10 06:47:34 C 11 29 38.82 +05 18 10.8 t H21
2012-03-10 15:52:11 C 11 31 14.44 +06 06 34.5 o 300
2012-03-10 15:53:05 C 11 31 14.60 +06 06 39.9 o 300
2012-03-10 15:53:36 C 11 31 14.66 +06 06 42.2 o 300
2012-03-10 15:54:06 C 11 31 14.76 +06 06 45.1 o 300
2012-03-10 15:54:37 C 11 31 14.80 +06 06 47.9 o 300
2012-03-11 00:06:40 C 11 32 46.59 +06 52 29.4 v I93
2012-03-11 00:25:58 C 11 32 49.94 +06 54 20.0 v I93
2012-03-11 00:41:58 C 11 32 52.69 +06 55 51.9 v I93
2012-03-11 00:56:35 C 11 32 55.25 +06 57 15.9 v I93
2012-03-11 02:58:43 C 11 33 23.57 +07 09 13.2 o G48
2012-03-11 02:59:19 C 11 33 23.66 +07 09 16.8 o G48
2012-03-11 02:59:52 C 11 33 23.78 +07 09 19.6 o G48
2012-03-11 03:00:24 C 11 33 23.86 +07 09 22.9 o G48
2012-03-11 03:00:57 C 11 33 23.95 +07 09 26.1 o G48
2012-03-11 03:01:30 C 11 33 24.06 +07 09 29.1 o G48
2012-03-11 03:02:06 C 11 33 24.19 +07 09 32.9 o G48
2012-03-11 03:02:38 C 11 33 24.29 +07 09 36.1 o G48
2012-03-11 03:03:11 C 11 33 24.39 +07 09 39.3 o G48
2012-03-11 03:03:44 C 11 33 24.48 +07 09 42.6 o G48
2012-03-11 06:18:26 C 11 33 58.12 +07 28 43.2 t H21
2012-03-11 06:21:59 C 11 33 58.75 +07 29 04.5 t H21
2012-03-11 06:25:02 C 11 33 59.29 +07 29 22.7 t H21
2012-03-11 06:28:05 C 11 33 59.84 +07 29 40.7 t H21
2012-03-11 06:30:38 C 11 34 00.30 +07 29 55.8 t H21
2012-03-11 06:33:25 C 11 34 00.81 +07 30 12.5 t H21
2012-03-11 20:41:32 C 11 36 59.31 +08 57 44.4 u A78
2012-03-11 20:55:26 C 11 37 02.12 +08 59 14.7 u A78
2012-03-11 21:02:37 C 11 37 03.57 +09 00 01.5 u A78
2012-03-11 21:10:28 C 11 37 05.18 +09 00 52.4 u A78
2012-03-11 23:19:35 C 11 37 31.44 +09 14 54.3 r 203
2012-03-12 00:08:32 C 11 37 41.42 +09 20 16.8 r 203
2012-03-12 20:58:35 C 11 42 41.83 +11 46 38.8 u A78
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)