2012 DF4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5395211851
Semi-major axis (a)1.5046042874 AU
Inclination (i)4.70613941°
Long. of Asc. Node (Ω)146.73008011°
Arg. of Perihelion (ω)87.35071263° ± 6.00e+00
Mean Anomaly (M)134.73719066°
Mean Motion (n)0.5340448100°/day
Perihelion dist (q)0.69284160 AU
Aphelion dist (Q)2.31633440 AU
Orbital Period1.84555240 yr
Physical Parameters
H (abs. magnitude)25.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.240″
Uncertainty
Orbit TypeApollo
MOID0.007995 AU
Observations Used36
Oppositions1
Arc Total2012-2012
First Observation Used
Last Observation Used2012-02-21
Observations (40)
Date Type RA Dec Mag Band Observatory
2012-02-16 12:21:30 C 10 26 31.237 +10 32 01.94 L F51
2012-02-16 12:42:35 C 10 26 36.457 +10 33 15.04 L F51
2012-02-16 13:03:38 C 10 26 41.742 +10 34 28.08 L F51
2012-02-16 13:24:51 C 10 26 47.150 +10 35 41.99 L F51
2012-02-17 07:19:03 C 10 33 29.903 +11 50 26.65 o 568
2012-02-17 07:20:51 C 10 33 30.582 +11 50 35.41 o 568
2012-02-17 07:22:40 C 10 33 31.293 +11 50 44.74 o 568
2012-02-19 23:15:12 C 11 48 24.33 +24 37 35.5 u J95
2012-02-19 23:17:02 C 11 48 29.95 +24 38 26.3 u J95
2012-02-19 23:18:53 C 11 48 35.65 +24 39 18.2 u J95
2012-02-20 01:10:15 C 11 54 32.55 +25 33 27.3 u I93
2012-02-20 01:23:27 C 11 55 16.75 +25 39 56.1 u I93
2012-02-20 01:31:58 C 11 55 45.50 +25 44 07.9 u I93
2012-02-20 01:41:40 C 11 56 18.55 +25 48 56.1 u I93
2012-02-20 03:50:55 C 12 04 09.22 +26 53 43.2 u J95
2012-02-20 03:53:39 C 12 04 19.75 +26 55 09.0 u J95
2012-02-20 03:56:25 C 12 04 30.49 +26 56 36.4 u J95
2012-02-20 03:59:06 C 12 04 40.94 +26 58 01.1 u J95
2012-02-20 09:22:39 C 12 29 53.00 +30 06 56.4 r H21
2012-02-20 09:24:26 C 12 30 02.37 +30 08 01.9 r H21
2012-02-20 09:26:13 C 12 30 11.75 +30 09 07.2 r H21
2012-02-20 09:30:09 C 12 30 32.45 +30 11 32.5 r H21
2012-02-20 09:33:50 C 12 30 51.96 +30 13 48.7 r H21
2012-02-20 09:36:23 C 12 31 05.51 +30 15 23.0 r H21
2012-02-20 11:37:14 C 12 42 42.71 +31 33 29.9 c 854
2012-02-20 11:41:42 C 12 43 09.41 +31 36 21.1 c 854
2012-02-20 11:43:55 C 12 43 22.86 +31 37 46.1 c 854
2012-02-20 15:52:37 C 13 13 24.27 +34 20 53.1 o 300
2012-02-20 15:53:57 C 13 13 34.66 +34 21 47.9 o 300
2012-02-20 15:54:24 C 13 13 38.09 +34 22 05.6 o 300
2012-02-20 15:54:50 C 13 13 41.59 +34 22 23.9 o 300
2012-02-20 15:55:18 C 13 13 45.13 +34 22 42.7 o 300
2012-02-20 15:56:38 C 13 13 55.57 +34 23 37.0 o 300
2012-02-21 05:36:52 C 15 45 44.53 +40 01 32.5 u J95
2012-02-21 05:44:17 C 15 47 23.09 +40 00 58.5 u J95
2012-02-21 05:50:20 C 15 48 43.41 +40 00 25.9 u J95
2012-02-21 05:56:51 C 15 50 09.83 +39 59 46.3 u J95
2012-02-21 06:03:12 C 15 51 34.34 +39 59 04.0 u J95
2012-02-21 06:09:02 C 15 52 51.83 +39 58 21.5 u J95
2012-02-21 06:14:49 C 15 54 08.73 +39 57 36.2 u J95