2020 HJ4

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5765399924 ± 8.47e-08
Semi-major axis (a)2.0693456924 AU ± 1.93e-08
Inclination (i)1.22353221° ± 8.18e-06
Long. of Asc. Node (Ω)105.19657688° ± 8.38e-04
Arg. of Perihelion (ω)233.27587980° ± 8.38e-04
Mean Anomaly (M)255.41822175° ± 8.27e-06
Mean Motion (n)0.3311026870°/day ± 4.64e-09
Perihelion dist (q)0.87628514 AU ± 1.75e-07
Aphelion dist (Q)3.26240624 AU ± 1.78e-07
Orbital Period2.97679941 yr ± 4.17e-08
Physical Parameters
H (abs. magnitude)20.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.234″
Uncertainty0
Orbit TypeApollo
MOID0.000597 AU
Observations Used82
Oppositions6
Arc Total2014-2023
First Observation Used2014-04-04
Last Observation Used2023-12-18
Observations (83)
Date Type RA Dec Mag Band Observatory
2020-11-17 02:08:54 C 20 31 53.17 -20 55 37.6 V I52
2020-11-23 01:37:52 C 21 13 04.62 -18 15 31.1 o 691
2020-11-23 01:47:03 C 21 13 07.26 -18 15 19.6 o 691
2020-11-26 02:11:22 C 21 33 40.66 -16 40 33.1 o 691
2020-11-26 02:42:48 C 21 33 49.39 -16 39 49.9 o 691
2020-12-12 01:34:52 C 23 13 47.75 -07 00 00.9 o 291
2020-12-12 01:42:27 C 23 13 49.54 -06 59 48.9 o 291
2021-01-03 02:56:12 C 00 58 40.88 +04 52 26.9 V V06
2021-01-03 03:20:55 C 00 58 44.89 +04 52 54.4 V V06
2021-01-07 05:15:54 C 01 14 25.444 +06 36 14.61 V F52
2021-01-07 05:47:14 C 01 14 30.257 +06 36 46.60 V F52
2021-01-07 06:02:52 C 01 14 32.649 +06 37 02.79 V F52
2021-01-13 03:55:28 C 01 35 41.97 +08 51 45.9 o 291
2021-01-13 04:11:36 C 01 35 44.28 +08 52 00.0 o 291
2021-01-13 04:27:46 C 01 35 46.56 +08 52 14.8 o 291
2021-01-17 04:38:15 C 01 49 13.20 +10 14 26.2 o 291
2021-01-17 05:10:51 C 01 49 17.62 +10 14 52.8 o 291
2023-04-25 06:19:09 C 14 08 31.17 -10 34 24.6 u 807
2023-04-25 06:25:00 C 14 08 30.79 -10 34 22.6 u 807
2023-04-25 06:31:07 C 14 08 30.39 -10 34 20.5 u 807
2023-04-25 08:56:29 C 14 08 21.18 -10 33 39.0 V 691
2023-04-25 09:44:34 C 14 08 18.02 -10 33 21.4 V 691
2023-04-25 10:32:41 C 14 08 14.85 -10 33 05.6 V 691
2023-12-03 02:48:23 C 23 02 32.13 -08 48 12.4 V 691
2023-12-03 02:58:46 C 23 02 34.84 -08 47 54.2 V 691
2023-12-03 03:09:10 C 23 02 37.59 -08 47 35.9 V 691
2023-12-07 01:58:11 C 23 26 59.312 -06 05 03.19 V G96
2023-12-07 02:06:21 C 23 27 01.282 -06 04 49.62 V G96
2023-12-07 02:14:29 C 23 27 03.258 -06 04 35.76 V G96
2023-12-07 02:22:39 C 23 27 05.238 -06 04 22.22 V G96
2023-12-18 02:32:14 C 00 25 17.18 +00 41 11.4 V 291
2023-12-18 02:40:47 C 00 25 18.84 +00 41 23.0 V 291
2023-12-18 02:49:19 C 00 25 20.47 +00 41 34.4 V 291