2020 HR4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5024014301 ± 7.82e-05
Semi-major axis (a)2.4501776976 AU ± 4.03e-04
Inclination (i)4.30368705° ± 4.24e-04
Long. of Asc. Node (Ω)138.23179508° ± 3.37e-03
Arg. of Perihelion (ω)57.65849163° ± 5.55e-03
Mean Anomaly (M)168.52817266° ± 1.32e-01
Mean Motion (n)0.2569898095°/day ± 6.35e-05
Perihelion dist (q)1.21920492 AU ± 2.77e-04
Aphelion dist (Q)3.68115048 AU ± 6.35e-04
Orbital Period3.83527380 yr ± 9.47e-04
Physical Parameters
H (abs. magnitude)23.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.144″
Uncertainty3
Orbit TypeAmor
MOID0.229376 AU
Observations Used21
Oppositions1
Arc Total2020-2020
First Observation Used2020-04-20
Last Observation Used2020-05-12
Observations (21)
Date Type RA Dec Mag Band Observatory
2020-04-20 11:28:02 C 15 09 12.248 +03 08 09.49 U F51
2020-04-20 11:47:25 C 15 09 13.034 +03 08 06.35 U F51
2020-04-20 12:26:54 C 15 09 14.650 +03 07 59.84 U F51
2020-04-23 08:43:58 C 15 12 26.97 +02 54 51.9 V G96
2020-04-23 08:51:25 C 15 12 27.24 +02 54 50.4 V G96
2020-04-23 08:58:53 C 15 12 27.52 +02 54 48.7 V G96
2020-04-23 10:38:14 C 15 12 31.11 +02 54 26.9 V V06
2020-04-23 10:41:31 C 15 12 31.24 +02 54 26.2 V V06
2020-04-23 10:44:48 C 15 12 31.36 +02 54 25.5 V V06
2020-04-23 10:48:05 C 15 12 31.47 +02 54 24.8 V V06
2020-04-27 06:42:36 C 15 16 15.46 +02 31 09.3 V V06
2020-04-27 06:46:02 C 15 16 15.60 +02 31 08.2 V V06
2020-04-27 06:49:26 C 15 16 15.69 +02 31 07.2 V V06
2020-04-27 06:52:52 C 15 16 15.83 +02 31 05.9 V V06
2020-05-11 07:42:36 C 15 25 32.332 +00 15 52.41 U F51
2020-05-11 07:57:57 C 15 25 32.555 +00 15 44.42 U F51
2020-05-11 08:13:13 C 15 25 32.762 +00 15 36.87 U F51
2020-05-11 08:28:33 C 15 25 32.977 +00 15 29.35 U F51
2020-05-12 08:18:22 C 15 26 01.587 +00 03 25.96 U F51
2020-05-12 08:36:30 C 15 26 01.820 +00 03 16.50 U F51
2020-05-12 08:54:43 C 15 26 02.047 +00 03 07.40 U F51