2004 HD2

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8324793409 ± 2.00e+00
Semi-major axis (a)2.3325200879 AU ± 3.00e+00
Inclination (i)15.10639025° ± 4.00e+00
Long. of Asc. Node (Ω)24.45887493° ± 5.00e+00
Arg. of Perihelion (ω)64.16718881° ± 6.00e+00
Mean Anomaly (M)40.20684950° ± 6.25e-01
Mean Motion (n)0.2766224200°/day ± 5.34e-01
Perihelion dist (q)0.39075780 AU ± 4.69e+00
Aphelion dist (Q)4.27484520 AU ± 7.21e+00
Orbital Period3.56300700 yr ± 6.87e+00
Physical Parameters
H (abs. magnitude)21.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.690″
Uncertainty3
Orbit TypeApollo
MOID0.025733 AU
Observations Used54
Oppositions1
Arc Total2004-2004
First Observation Used
Last Observation Used2004-05-10
Observations (58)
Date Type RA Dec Mag Band Observatory
2004-04-20 04:46:20 C 10 20 50.26 +17 20 07.2 19.3 c 704
2004-04-20 05:02:25 C 10 20 59.43 +17 17 53.5 19.6 c 704
2004-04-20 05:18:45 C 10 21 08.72 +17 15 39.2 19.8 c 704
2004-04-20 05:34:43 C 10 21 17.81 +17 13 27.1 19.6 c 704
2004-04-20 05:50:41 C 10 21 26.90 +17 11 14.9 19.4 c 704
2004-04-20 21:40:14 C 10 30 02.14 +15 07 45.4 c 587
2004-04-20 21:42:51 C 10 30 03.36 +15 07 25.5 c 587
2004-04-20 21:45:26 C 10 30 04.76 +15 07 05.2 c 587
2004-04-21 03:16:52 C 10 32 50.50 +14 27 14.2 18.7 c 704
2004-04-21 03:17:18 C 10 32 50.70 +14 27 12.1 18.8 c 704
2004-04-21 03:17:47 C 10 32 50.94 +14 27 07.5 18.5 c 704
2004-04-21 03:32:31 C 10 32 57.87 +14 25 22.5 19.0 c 704
2004-04-21 03:33:40 C 10 32 58.46 +14 25 14.7 19.4 c 704
2004-04-21 03:34:10 C 10 32 58.63 +14 25 10.7 18.8 c 704
2004-04-21 03:48:04 C 10 33 05.17 +14 23 33.0 19.2 c 704
2004-04-21 03:49:43 C 10 33 05.86 +14 23 19.9 19.5 c 704
2004-04-21 04:03:20 C 10 33 12.29 +14 21 44.7 19.2 c 704
2004-04-21 04:05:46 C 10 33 13.44 +14 21 27.4 19.3 c 704
2004-04-21 04:06:16 C 10 33 13.67 +14 21 23.2 18.7 c 704
2004-04-21 04:19:46 C 10 33 19.91 +14 19 47.6 19.0 c 704
2004-04-21 04:22:29 C 10 33 21.26 +14 19 27.7 19.0 c 704
2004-04-21 04:56:01 C 10 33 37.49 +14 15 31.1 c 673
2004-04-21 04:58:29 C 10 33 38.64 +14 15 13.0 c 673
2004-04-21 05:01:30 C 10 33 40.03 +14 14 51.7 c 673
2004-04-21 05:04:39 C 10 33 41.52 +14 14 29.2 c 673
2004-04-21 05:07:40 C 10 33 42.89 +14 14 08.7 c 673
2004-04-21 05:14:00 C 10 33 45.77 +14 13 24.8 c 673
2004-04-21 05:35:09 C 10 33 55.29 +14 10 56.6 c 854
2004-04-21 05:42:27 C 10 33 58.39 +14 10 05.7 c 854
2004-04-21 05:49:44 C 10 34 01.94 +14 09 11.1 c 854
2004-04-21 23:40:18 C 10 41 55.86 +12 11 06.8 r J95
2004-04-21 23:48:58 C 10 41 59.31 +12 10 12.4 r J95
2004-04-22 05:56:29 C 10 44 27.63 +11 33 07.0 19.0 c 704
2004-04-22 06:12:07 C 10 44 33.48 +11 31 32.6 19.4 c 704
2004-04-22 06:27:46 C 10 44 39.65 +11 29 58.4 19.6 c 704
2004-04-22 06:43:17 C 10 44 45.61 +11 28 25.7 19.2 c 704
2004-04-22 06:58:48 C 10 44 51.55 +11 26 54.3 19.5 c 704
2004-04-22 20:12:38 C 10 49 49.65 +10 11 30.5 c 246
2004-04-22 20:13:24 C 10 49 49.91 +10 11 26.1 c 246
2004-04-22 20:15:30 C 10 49 50.61 +10 11 15.2 c 246
2004-04-22 20:16:12 C 10 49 50.92 +10 11 10.4 c 246
2004-04-22 23:44:06 C 10 51 02.85 +09 52 27.3 r J95
2004-04-22 23:55:22 C 10 51 06.75 +09 51 26.4 r J95
2004-04-23 03:15:01 C 10 52 17.07 +09 34 07.8 18.7 c 704
2004-04-23 03:30:34 C 10 52 22.10 +09 32 47.2 19.2 c 704
2004-04-23 03:46:08 C 10 52 27.15 +09 31 26.5 19.5 c 704
2004-04-23 04:01:42 C 10 52 32.36 +09 30 06.1 19.3 c 704
2004-04-24 07:38:54 C 11 01 04.50 +07 19 14.0 c 474
2004-04-24 07:42:15 C 11 01 05.31 +07 19 00.5 c 474
2004-04-24 07:44:24 C 11 01 05.83 +07 18 50.0 c 474