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
2004-04-25 05:33:54 C 09 11 06.26 +16 17 07.8 c 671
2004-04-25 05:36:39 C 09 11 07.65 +16 16 53.3 c 671
2004-04-25 06:15:53 C 09 11 25.81 +16 13 42.4 c 671
2004-04-27 20:08:48 C 09 38 30.71 +11 22 32.7 r 176
2004-04-27 20:09:37 C 09 38 31.05 +11 22 29.1 r 176
2004-04-27 20:10:26 C 09 38 31.38 +11 22 25.6 r 176
2004-05-02 03:42:31 C 10 15 46.88 +04 16 08.3 r 448
2004-05-02 04:05:06 C 10 15 53.86 +04 14 44.6 r 448
2004-05-02 04:24:57 C 10 16 00.00 +04 13 31.4 r 448
2004-05-07 04:28:36 C 10 49 12.01 -02 10 50.8 r 649
2004-05-07 04:43:57 C 10 49 15.61 -02 11 31.5 r 649
2004-05-07 04:46:31 C 10 49 16.22 -02 11 39.3 r 649
2004-05-08 03:28:18 C 10 54 37.55 -03 12 09.1 c 926
2004-05-08 03:29:35 C 10 54 37.86 -03 12 12.2 c 926
2004-05-08 03:30:53 C 10 54 38.15 -03 12 15.3 c 926
2004-05-19 04:39:27 C 11 42 43.47 -11 36 17.8 d 291
2004-05-19 04:48:27 C 11 42 44.60 -11 36 30.9 d 291
2004-05-19 04:56:32 C 11 42 45.87 -11 36 40.9 d 291
2004-05-26 22:06:38 C 12 06 42.31 -15 07 09.6 o J50
2004-05-26 22:07:44 C 12 06 42.42 -15 07 10.5 o J50
2004-05-26 22:45:38 C 12 06 46.68 -15 07 45.8 o J50
2004-05-26 22:46:48 C 12 06 46.82 -15 07 47.0 o J50
2004-05-26 23:20:49 C 12 06 50.64 -15 08 18.8 o J50
2004-05-26 23:44:31 C 12 06 53.30 -15 08 40.8 o J50
2004-06-07 09:29:36 C 12 35 11.85 -18 34 54.6 r 413
2004-06-07 09:45:34 C 12 35 13.31 -18 35 04.2 r 413
2025-09-25 08:37:43 C 02 32 05.989 +12 17 55.61 V G96
2025-09-25 08:45:08 C 02 32 05.917 +12 17 59.06 V G96
2025-09-25 08:52:32 C 02 32 05.816 +12 18 02.34 V G96
2025-09-28 09:55:11 C 02 31 36.148 +12 55 17.18 X F52
2025-09-28 09:57:01 C 02 31 36.119 +12 55 18.15 X F52
2025-09-28 10:11:05 C 02 31 35.943 +12 55 25.60 X F52
2025-09-28 10:12:54 C 02 31 35.916 +12 55 26.73 X F52
2025-09-28 10:28:45 C 02 31 35.673 +12 55 35.30 X F52
2025-09-28 10:42:45 C 02 31 35.508 +12 55 42.79 X F52
2025-09-28 10:44:34 C 02 31 35.488 +12 55 43.67 X F52
2025-10-02 09:44:47 C 02 30 10.079 +13 49 37.66 X F52
2025-10-02 09:45:45 C 02 30 10.050 +13 49 38.18 X F52
2025-10-02 09:59:36 C 02 30 09.712 +13 49 46.64 X F52
2025-10-02 10:00:31 C 02 30 09.705 +13 49 47.44 X F52
2025-10-02 10:14:23 C 02 30 09.381 +13 49 55.75 X F52
2025-10-02 10:15:18 C 02 30 09.344 +13 49 56.50 X F52
2025-10-02 10:29:11 C 02 30 09.020 +13 50 04.93 X F52
2025-10-02 10:30:05 C 02 30 08.998 +13 50 05.33 X F52
2025-10-13 13:27:44 C 02 19 59.726 +17 08 48.79 X F51
2025-10-13 13:48:14 C 02 19 58.409 +17 09 07.36 X F51
2025-10-13 14:08:44 C 02 19 57.105 +17 09 25.79 X F51
2025-10-13 14:29:12 C 02 19 55.805 +17 09 44.13 X F51
2025-10-18 09:33:02 C 02 11 41.114 +19 06 14.26 V G96
2025-10-18 09:40:22 C 02 11 40.438 +19 06 22.46 V G96