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
2012-03-12 21:05:48 C 11 42 43.57 +11 47 33.1 u A78
2012-03-12 21:13:58 C 11 42 45.54 +11 48 34.5 u A78
2012-03-12 21:22:13 C 11 42 47.51 +11 49 36.5 u A78
2012-03-12 21:30:36 C 11 42 49.52 +11 50 39.8 u A78
2012-03-12 22:23:39 C 11 43 00.79 +11 57 05.7 w C36
2012-03-12 22:26:40 C 11 43 01.55 +11 57 28.4 w C36
2012-03-12 22:28:41 C 11 43 02.04 +11 57 43.5 w C36
2012-03-12 22:29:42 C 11 43 02.26 +11 57 50.5 w C36
2012-03-13 06:48:46 C 11 45 16.45 +13 02 43.2 r 703
2012-03-13 06:56:01 C 11 45 18.28 +13 03 41.0 r 703
2012-03-13 07:03:17 C 11 45 20.08 +13 04 38.5 r 703
2012-03-13 07:10:31 C 11 45 21.92 +13 05 36.3 r 703
2012-03-13 07:26:22 C 11 45 25.88 +13 07 42.3 r 703
2012-03-13 07:35:03 C 11 45 28.08 +13 08 51.5 r 703
2012-03-13 07:43:44 C 11 45 30.27 +13 10 00.9 r 703
2012-03-13 07:52:22 C 11 45 32.47 +13 11 10.1 r 703
2012-03-13 08:34:26 C 11 45 41.63 +13 16 39.8 u H45
2012-03-13 08:35:57 C 11 45 42.03 +13 16 51.9 u H45
2012-03-13 08:37:22 C 11 45 42.40 +13 17 03.4 u H45
2012-03-13 08:39:02 C 11 45 42.83 +13 17 16.6 u H45
2012-03-13 08:40:36 C 11 45 43.24 +13 17 29.1 u H45
2012-03-13 08:42:57 C 11 45 43.84 +13 17 47.8 u H45
2012-03-13 08:47:35 C 11 45 44.87 +13 18 17.7 u H21
2012-03-13 08:51:23 C 11 45 45.86 +13 18 48.2 u H21
2012-03-13 08:55:12 C 11 45 46.86 +13 19 18.6 u H21
2012-03-13 08:59:01 C 11 45 47.85 +13 19 49.0 u H21
2012-03-13 09:02:42 C 11 45 48.82 +13 20 18.6 u H21
2012-03-13 21:51:05 C 11 49 38.83 +15 07 16.5 o B67
2012-03-13 21:57:35 C 11 49 40.76 +15 08 12.7 o B67
2012-03-13 22:04:05 C 11 49 42.70 +15 09 10.0 o B67
2012-03-13 22:10:35 C 11 49 44.52 +15 10 06.7 o B67
2012-03-13 22:17:04 C 11 49 46.45 +15 11 03.9 o B67
2012-03-13 23:21:18 C 11 50 04.95 +15 20 26.9 r 203
2012-03-14 00:19:13 C 11 50 21.79 +15 28 56.4 r 203
2012-03-14 00:58:34 C 11 50 33.37 +15 34 44.3 c A24
2012-03-14 00:59:26 C 11 50 33.37 +15 34 53.2 u 160
2012-03-14 00:59:41 C 11 50 33.70 +15 34 53.9 c A24
2012-03-14 01:03:23 C 11 50 34.53 +15 35 28.0 u 160
2012-03-14 01:07:21 C 11 50 35.69 +15 36 03.2 u 160
2012-03-14 01:14:02 C 11 50 37.91 +15 37 00.9 c A24
2012-03-14 01:57:19 C 11 50 50.76 +15 43 23.7 c A24
2012-03-14 01:58:15 C 11 50 51.04 +15 43 31.6 c A24
2012-03-14 17:19:14 C 11 56 00.45 +18 07 07.5 o 300
2012-03-14 17:20:32 C 11 56 00.88 +18 07 20.5 o 300
2012-03-14 17:21:50 C 11 56 01.32 +18 07 32.8 o 300
2012-03-14 17:25:44 C 11 56 02.65 +18 08 11.0 o 300
2012-03-14 17:27:02 C 11 56 03.05 +18 08 23.6 o 300
2012-03-14 23:12:02 C 11 58 12.97 +19 05 19.6 t 130
2012-03-14 23:14:21 C 11 58 13.80 +19 05 43.4 t 130
2012-03-14 23:17:06 C 11 58 14.77 +19 06 11.2 t 130
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)