IAA RAS IAA Minor Planet Database

2020 HP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2972903413 ± 2.00e+00
Semi-major axis (a)1.3787777274 AU ± 3.00e+00
Inclination (i)29.97391171° ± 4.00e+00
Long. of Asc. Node (Ω)33.34866942° ± 5.00e+00
Arg. of Perihelion (ω)219.28061566° ± 6.00e+00
Mean Anomaly (M)139.33581448° ± 6.73e-01
Mean Motion (n)0.6087778400°/day ± 1.99e+00
Perihelion dist (q)0.96888060 AU ± 3.47e+00
Aphelion dist (Q)1.78869120 AU ± 4.77e+00
Orbital Period1.61899400 yr ± 5.28e+00
Physical Parameters
H (abs. magnitude)26.60
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.525″
Uncertainty3
Orbit TypeApollo
MOID0.015003 AU
Observations Used81
Oppositions1
Arc Total2020-2020
First Observation Used—
Last Observation Used2020-04-23
Observations (81)
Date Type RA Dec Mag Band Observatory
2020-04-22 08:46:54 C 14 43 58.28 +11 24 37.8 – V G96
2020-04-22 08:54:19 C 14 43 47.39 +11 19 18.0 – V G96
2020-04-22 09:01:44 C 14 43 36.51 +11 13 58.4 – V G96
2020-04-22 09:09:10 C 14 43 25.49 +11 08 34.7 – V G96
2020-04-22 09:39:01 C 14 42 41.30 +10 46 50.6 – V I52
2020-04-22 09:39:26 C 14 42 40.70 +10 46 32.2 – V I52
2020-04-22 09:40:16 C 14 42 39.45 +10 45 55.2 – V I52
2020-04-22 10:17:30 C 14 41 43.83 +10 18 18.9 – V I52
2020-04-22 10:18:08 C 14 41 42.91 +10 17 50.5 – V I52
2020-04-22 10:18:46 C 14 41 41.94 +10 17 21.8 – V I52
2020-04-22 10:19:24 C 14 41 41.00 +10 16 53.7 – V I52
2020-04-22 11:29:20 C 14 39 55.44 +09 23 39.8 – V V06
2020-04-22 11:29:47 C 14 39 54.77 +09 23 19.2 – V V06
2020-04-22 11:30:14 C 14 39 54.10 +09 22 58.4 – V V06
2020-04-22 11:30:40 C 14 39 53.43 +09 22 37.7 – V V06
2020-04-22 20:10:18 C 14 26 36.64 +01 50 15.5 – V 246
2020-04-22 20:10:33 C 14 26 36.12 +01 49 58.9 – V 246
2020-04-22 20:14:19 C 14 26 29.33 +01 46 20.2 – V 246
2020-04-22 20:14:27 C 14 26 29.16 +01 46 12.9 – V 246
2020-04-22 20:14:34 C 14 26 28.84 +01 46 06.8 – V 246
2020-04-22 20:14:42 C 14 26 28.56 +01 45 58.4 – V 246
2020-04-22 20:14:51 C 14 26 28.31 +01 45 50.8 – V 246
2020-04-22 20:14:58 C 14 26 28.06 +01 45 42.9 – V 246
2020-04-22 20:21:05 C 14 26 16.45 +01 39 35.0 – V G34
2020-04-22 20:24:11 C 14 26 10.77 +01 36 34.3 – V G34
2020-04-22 20:27:17 C 14 26 05.10 +01 33 33.9 – V G34
2020-04-22 20:34:52 C 14 25 51.51 +01 26 07.9 – V 033
2020-04-22 20:35:16 C 14 25 50.73 +01 25 44.1 – V 033
2020-04-22 20:35:40 C 14 25 50.00 +01 25 20.2 – V 033
2020-04-22 20:44:02 C 14 25 34.33 +01 17 14.4 – V K61
2020-04-22 20:45:25 C 14 25 31.76 +01 15 52.4 – V K61
2020-04-22 20:47:52 C 14 25 27.22 +01 13 28.4 – V K61
2020-04-22 20:49:10 C 14 25 24.77 +01 12 11.2 – V K61
2020-04-22 20:52:35 C 14 25 19.51 +01 09 11.6 – V 595
2020-04-22 20:53:31 C 14 25 18.11 +01 07 57.1 – V A17
2020-04-22 20:54:33 C 14 25 12.32 +01 07 10.5 – V L04
2020-04-22 20:56:55 C 14 25 11.77 +01 04 35.1 – V A17
2020-04-22 20:57:22 C 14 25 10.47 +01 04 27.5 – V 595
2020-04-22 21:00:20 C 14 25 05.38 +01 01 12.2 – V A17
2020-04-22 21:01:49 C 14 24 58.61 +00 59 59.2 – V L04
2020-04-22 21:02:09 C 14 25 01.53 +00 59 45.6 – V 595
2020-04-22 21:14:30 C 14 24 34.58 +00 47 24.5 – V L04
2020-04-22 21:25:44 C 14 24 15.94 +00 36 01.0 – V 246
2020-04-22 21:25:52 C 14 24 15.67 +00 35 51.1 – V 246
2020-04-22 21:26:01 C 14 24 15.39 +00 35 43.5 – V 246
2020-04-22 21:26:09 C 14 24 15.17 +00 35 37.1 – V 246
2020-04-22 21:26:16 C 14 24 14.94 +00 35 27.9 – V 246
2020-04-22 21:52:50 C 14 23 26.14 +00 09 12.2 – V K63
2020-04-22 21:52:51 C 14 23 23.57 +00 08 31.0 – S C43
2020-04-22 21:54:01 C 14 23 21.32 +00 07 20.5 – S C43