2004 HF12

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6487250804 ± 2.62e-08
Semi-major axis (a)2.1353635061 AU ± 1.62e-09
Inclination (i)13.41185020° ± 9.38e-06
Long. of Asc. Node (Ω)21.78936688° ± 9.25e-06
Arg. of Perihelion (ω)105.97664406° ± 8.67e-06
Mean Anomaly (M)344.80212365° ± 1.91e-06
Mean Motion (n)0.3158672154°/day ± 3.59e-10
Perihelion dist (q)0.75009964 AU ± 5.59e-08
Aphelion dist (Q)3.52062737 AU ± 5.60e-08
Orbital Period3.12038172 yr ± 3.55e-09
Physical Parameters
H (abs. magnitude)20.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.293″
Uncertainty0
Orbit TypeApollo
MOID0.019405 AU
Observations Used271
Oppositions14
Arc Total2004-2025
First Observation Used2004-04-20
Last Observation Used2025-11-30
Observations (291)
Date Type RA Dec Mag Band Observatory
2004-04-20 03:24:14 C 08 06 02.85 +26 08 52.7 19.8 c 704
2004-04-20 03:40:34 C 08 06 12.48 +26 07 38.2 20.3 c 704
2004-04-20 03:56:49 C 08 06 21.86 +26 06 22.7 20.3 c 704
2004-04-20 04:13:00 C 08 06 31.21 +26 05 07.9 20.1 c 704
2004-04-20 04:29:16 C 08 06 40.70 +26 03 52.0 19.8 c 704
2004-04-21 04:36:29 C 08 20 39.79 +24 10 56.3 c 673
2004-04-21 04:38:09 C 08 20 40.86 +24 10 47.0 c 673
2004-04-21 04:42:10 C 08 20 43.02 +24 10 28.6 c 673
2004-04-21 04:45:00 C 08 20 44.51 +24 10 15.9 c 673
2004-04-21 04:46:30 C 08 20 45.41 +24 10 07.6 c 673
2004-04-21 04:50:59 C 08 20 47.92 +24 09 46.7 c 673
2004-04-21 19:45:59 C 08 29 10.95 +22 57 56.7 c 246
2004-04-21 19:48:29 C 08 29 12.27 +22 57 44.5 c 246
2004-04-21 19:52:52 C 08 29 14.68 +22 57 23.7 c 246
2004-04-21 22:18:40 C 08 30 34.88 +22 45 31.8 r J95
2004-04-21 23:11:25 C 08 31 03.91 +22 41 13.1 r J95
2004-04-22 03:14:27 C 08 33 17.99 +22 21 49.3 19.5 c 704
2004-04-22 03:15:53 C 08 33 18.80 +22 21 43.0 19.5 c 704
2004-04-22 03:16:08 C 08 33 18.88 +22 21 42.3 19.8 c 704
2004-04-22 03:29:58 C 08 33 26.31 +22 20 33.0 20.3 c 704
2004-04-22 03:31:03 C 08 33 26.95 +22 20 29.6 20.1 c 704
2004-04-22 03:31:18 C 08 33 27.08 +22 20 27.2 19.8 c 704
2004-04-22 03:31:33 C 08 33 27.16 +22 20 26.2 19.6 c 704
2004-04-22 03:33:46 C 08 33 28.56 +22 20 16.0 c 854
2004-04-22 03:41:38 C 08 33 32.71 +22 19 37.2 c 854
2004-04-22 03:46:23 C 08 33 35.17 +22 19 12.9 20.4 c 704
2004-04-22 03:46:31 C 08 33 35.21 +22 19 13.0 19.9 c 704
2004-04-22 03:46:46 C 08 33 35.37 +22 19 11.3 19.3 c 704
2004-04-22 03:47:00 C 08 33 35.58 +22 19 10.6 19.9 c 704
2004-04-22 03:49:22 C 08 33 36.99 +22 18 59.8 c 854
2004-04-22 04:02:05 C 08 33 43.63 +22 17 58.2 20.3 c 704
2004-04-22 04:02:19 C 08 33 43.72 +22 17 55.8 19.9 c 704
2004-04-22 04:02:34 C 08 33 43.81 +22 17 53.7 19.9 c 704
2004-04-22 04:03:26 C 08 33 44.31 +22 17 50.1 20.3 c 704
2004-04-22 04:18:02 C 08 33 52.21 +22 16 37.2 20.0 c 704
2004-04-22 04:18:17 C 08 33 52.28 +22 16 36.6 19.7 c 704
2004-04-22 04:18:32 C 08 33 52.45 +22 16 35.7 19.4 c 704
2004-04-22 04:19:41 C 08 33 53.11 +22 16 29.9 19.9 c 704
2004-04-22 21:07:39 C 08 42 55.28 +20 54 03.3 r J95
2004-04-22 21:20:22 C 08 43 01.98 +20 53 00.3 r J95
2004-04-22 21:33:12 C 08 43 08.64 +20 51 56.6 r J95
2004-04-24 20:58:16 C 09 07 02.17 +16 58 56.8 r 176
2004-04-24 20:59:56 C 09 07 02.92 +16 58 48.7 r 176
2004-04-24 21:01:36 C 09 07 03.68 +16 58 40.7 r 176
2004-04-24 21:03:16 C 09 07 04.44 +16 58 32.7 r 176
2004-04-24 21:04:56 C 09 07 05.19 +16 58 24.7 r 176
2004-04-24 21:47:13 C 09 07 25.42 +16 54 49.5 r J95
2004-04-24 21:59:25 C 09 07 31.18 +16 53 49.5 r J95
2004-04-25 04:51:31 C 09 10 46.74 +16 20 35.7 c 671
2004-04-25 05:32:32 C 09 11 05.65 +16 17 14.9 c 671