2025 HP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5404444035 ± 3.62e-05
Semi-major axis (a)2.0727626434 AU ± 1.58e-04
Inclination (i)3.14936353° ± 1.48e-04
Long. of Asc. Node (Ω)217.55825561° ± 1.15e-05
Arg. of Perihelion (ω)32.87601336° ± 2.64e-05
Mean Anomaly (M)59.82003626° ± 6.73e-03
Mean Motion (n)0.3302842899°/day ± 3.78e-05
Perihelion dist (q)0.95254967 AU ± 1.04e-04
Aphelion dist (Q)3.19297561 AU ± 2.55e-04
Orbital Period2.98417549 yr ± 3.41e-04
Physical Parameters
H (abs. magnitude)27.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.352″
Uncertainty1
Orbit TypeApollo
MOID0.000508 AU
Observations Used75
Oppositions1
Arc Total2025-2025
First Observation Used2025-04-26
Last Observation Used2025-04-28
Observations (77)
Date Type RA Dec Mag Band Observatory
2025-04-26 02:45:29 C 12 15 52.97 -12 39 20.0 V W94
2025-04-26 02:54:35 C 12 15 58.80 -12 39 49.6 V W94
2025-04-26 03:03:37 C 12 16 04.63 -12 40 19.6 V W94
2025-04-26 08:40:22 C 12 20 56.850 -13 12 29.92 V I52
2025-04-26 08:40:38 C 12 20 57.106 -13 12 30.96 V I52
2025-04-26 08:42:14 C 12 20 58.614 -13 12 37.94 V I52
2025-04-26 08:45:05 C 12 21 01.202 -13 12 48.74 V I52
2025-04-26 10:44:48 B 12 24 18.677 -13 23 01.18 X Q06
2025-04-26 10:51:46 B 12 24 25.778 -13 23 37.34 X Q06
2025-04-26 10:58:45 B 12 24 32.884 -13 24 13.62 X Q06
2025-04-26 12:35:10 B 12 26 14.201 -13 32 38.40 W 900
2025-04-26 12:45:26 B 12 26 25.464 -13 33 34.27 W 900
2025-04-26 12:55:43 B 12 26 36.679 -13 34 28.85 W 900
2025-04-26 19:53:41 B 12 37 47.55 -14 20 15.9 X G02
2025-04-26 19:57:24 B 12 38 01.906 -14 20 43.84 X B72
2025-04-26 20:02:03 B 12 38 01.90 -14 21 19.5 X G02
2025-04-26 20:02:42 C 12 37 56.36 -14 21 25.9 X L18
2025-04-26 20:07:37 C 12 38 04.76 -14 22 02.0 X L18
2025-04-26 20:08:18 B 12 38 20.893 -14 22 07.03 X B72
2025-04-26 20:10:39 B 12 38 16.64 -14 22 24.9 X G02
2025-04-26 20:12:31 C 12 38 13.21 -14 22 39.3 X L18
2025-04-26 20:19:14 B 12 38 38.342 -14 22 33.71 q L47
2025-04-26 20:19:19 B 12 38 40.223 -14 23 33.60 X B72
2025-04-26 20:20:00 B 12 38 36.713 -14 23 57.26 V B15
2025-04-26 20:21:52 B 12 38 39.982 -14 24 12.67 V B15
2025-04-26 20:23:38 B 12 38 43.169 -14 24 26.14 V B15
2025-04-26 21:10:08 B 12 40 06.636 -14 30 18.21 W G34
2025-04-26 21:12:34 C 12 40 11.39 -14 29 48.2 V L01
2025-04-26 21:13:59 C 12 40 13.99 -14 29 59.3 V L01
2025-04-26 21:15:25 C 12 40 16.59 -14 30 10.5 V L01
2025-04-26 21:16:14 C 12 40 17.41 -14 31 11.9 V C43
2025-04-26 21:17:01 C 12 40 19.52 -14 30 23.1 V L01
2025-04-26 21:18:26 C 12 40 22.12 -14 30 34.6 V L01
2025-04-26 21:19:09 C 12 40 22.83 -14 31 35.3 V C43
2025-04-26 21:22:05 C 12 40 28.28 -14 31 58.7 V C43
2025-04-26 21:25:18 C 12 40 34.29 -14 32 24.0 V C43
2025-04-26 21:30:20 B 12 40 44.180 -14 33 00.25 W G34
2025-04-26 21:39:39 C 12 41 08.722 -14 34 15.83 Z M09
2025-04-26 21:46:16 B 12 41 28.961 -14 33 18.36 X J57
2025-04-26 21:46:51 C 12 41 22.388 -14 35 14.03 Z M09
2025-04-26 21:53:56 C 12 41 36.034 -14 36 11.49 Z M09
2025-04-26 21:55:14 B 12 41 45.833 -14 34 31.15 X J57
2025-04-26 22:02:20 B 12 41 59.282 -14 35 30.08 X J57
2025-04-26 22:12:59 C 12 42 05.83 -14 38 41.6 V K62
2025-04-26 22:14:19 C 12 42 08.46 -14 38 53.1 V K62
2025-04-26 22:15:39 C 12 42 11.05 -14 39 03.4 V K62
2025-04-26 22:16:59 C 12 42 13.69 -14 39 14.6 V K62
2025-04-26 23:57:51 B 12 46 45.288 -14 33 27.72 Z Y05
2025-04-27 00:06:56 B 12 47 04.760 -14 34 48.95 Z Y05
2025-04-27 00:15:53 B 12 47 24.100 -14 36 08.98 Z Y05