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
2025-04-27 01:39:37 B 12 51 28.022 -15 05 26.45 X W05
2025-04-27 01:42:05 B 12 51 34.272 -15 05 52.66 X W05
2025-04-27 01:44:11 C 12 51 20.760 -14 45 22.30 V 807
2025-04-27 01:44:36 B 12 51 40.586 -15 06 18.58 X W05
2025-04-27 01:46:24 C 12 51 26.220 -14 45 43.60 V 807
2025-04-27 01:48:28 C 12 51 31.320 -14 46 03.60 V 807
2025-04-27 01:50:38 C 12 51 36.670 -14 46 24.80 V 807
2025-04-27 03:15:42 B 12 55 30.218 -15 21 31.72 X W42
2025-04-27 03:22:03 C 12 56 24.932 -15 22 53.94 V I52
2025-04-27 03:22:19 C 12 56 25.663 -15 22 56.82 V I52
2025-04-27 03:22:33 C 12 56 26.365 -15 22 59.84 V I52
2025-04-27 03:23:43 C 12 56 29.663 -15 23 13.31 V I52
2025-04-27 03:34:43 B 12 56 22.385 -15 25 01.16 X W42
2025-04-27 03:41:43 B 12 56 41.815 -15 26 18.85 X W42
2025-04-27 21:38:05 B 15 18 28.89 -20 29 29.9 X G02
2025-04-27 21:40:01 B 15 19 01.68 -20 29 53.5 X G02
2025-04-27 21:41:59 B 15 19 35.20 -20 30 15.9 X G02
2025-04-27 23:03:54 C 15 45 15.842 -20 38 52.12 W J95
2025-04-27 23:07:30 C 15 46 26.400 -20 39 00.40 W J95
2025-04-27 23:11:01 C 15 47 35.765 -20 39 06.34 W J95
2025-04-27 23:14:15 C 15 48 40.022 -20 39 09.86 W J95
2025-04-28 01:44:10 B 16 42 53.998 -20 07 18.66 V L65
2025-04-28 01:56:11 B 16 47 40.262 -20 01 05.77 V L65
2025-04-28 02:09:18 B 16 52 55.246 -19 53 37.57 V L65
2025-04-28 11:19:32 C 20 16 27.780 -08 09 52.60 V U52
2025-04-28 11:29:41 C 20 18 55.392 -07 56 57.84 V U52
2025-04-28 11:39:39 C 20 21 17.443 -07 44 28.21 V U52