2021 JH4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6298264000
Semi-major axis (a)2.6353891000 AU
Inclination (i)2.67909000°
Long. of Asc. Node (Ω)41.16150000°
Arg. of Perihelion (ω)209.57017000°
Mean Anomaly (M)16.79025000°
Mean Motion (n)0.2303758500°/day
Perihelion dist (q)0.97555150 AU
Aphelion dist (Q)4.29522670 AU
Orbital Period4.27825940 yr
Physical Parameters
H (abs. magnitude)25.62
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.480″
Uncertainty7
Orbit TypeApollo
MOID0.004347 AU
Observations Used24
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-05-12
Observations (24)
Date Type RA Dec Mag Band Observatory
2021-04-15 06:03:51 C 11 41 45.430 +09 19 40.54 V F51
2021-04-15 06:20:48 C 11 41 44.250 +09 19 42.77 V F51
2021-04-15 06:54:39 C 11 41 41.860 +09 19 46.92 V F51
2021-05-03 07:40:50 C 11 01 18.161 +07 38 40.82 V F51
2021-05-03 07:58:22 C 11 01 14.139 +07 38 23.55 V F51
2021-05-09 04:17:41 C 10 13 05.39 +03 02 43.3 V G96
2021-05-09 04:25:08 C 10 13 00.23 +03 02 14.3 V G96
2021-05-09 04:32:35 C 10 12 55.19 +03 01 46.1 V G96
2021-05-09 04:40:02 C 10 12 50.13 +03 01 17.1 V G96
2021-05-09 06:03:13 C 10 11 53.45 +02 55 54.4 V I52
2021-05-09 06:04:38 C 10 11 52.47 +02 55 47.9 V I52
2021-05-09 06:06:03 C 10 11 51.50 +02 55 42.8 V I52
2021-05-09 06:07:28 C 10 11 50.59 +02 55 37.2 V I52
2021-05-10 03:15:53 C 09 56 34.03 +01 21 16.3 V I52
2021-05-10 03:18:01 C 09 56 32.15 +01 21 05.4 V I52
2021-05-10 03:22:16 C 09 56 28.31 +01 20 42.5 V I52
2021-05-11 04:26:27 C 09 31 30.36 -01 13 00.8 V I52
2021-05-11 04:27:52 C 09 31 28.53 -01 13 11.9 V I52
2021-05-11 04:29:18 C 09 31 26.83 -01 13 22.1 V I52
2021-05-11 04:30:43 C 09 31 25.04 -01 13 32.6 V I52
2021-05-12 03:42:50 C 08 58 40.48 -04 34 22.5 V I52
2021-05-12 03:44:27 C 08 58 37.64 -04 34 39.0 V I52
2021-05-12 03:46:05 C 08 58 34.77 -04 34 55.1 V I52
2021-05-12 03:47:43 C 08 58 31.92 -04 35 11.3 V I52