2001 HJ31

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5925665413 ± 2.00e+00
Semi-major axis (a)2.0907046591 AU
Inclination (i)2.75190232°
Long. of Asc. Node (Ω)20.78320153°
Arg. of Perihelion (ω)132.91203213° ± 6.00e+00
Mean Anomaly (M)62.43272711°
Mean Motion (n)0.3260355900°/day
Perihelion dist (q)0.85182300 AU
Aphelion dist (Q)3.32958660 AU
Orbital Period3.02300650 yr
Physical Parameters
H (abs. magnitude)23.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.792″
Uncertainty
Orbit TypeApollo
MOID0.005489 AU
Observations Used25
Oppositions1
Arc Total2001-2001
First Observation Used
Last Observation Used2001-04-30
Observations (25)
Date Type RA Dec Mag Band Observatory
2001-04-26 05:55:54 C 13 05 23.83 -19 57 03.5 c 699
2001-04-26 06:24:14 C 13 05 38.04 -19 57 59.3 c 699
2001-04-26 06:52:18 C 13 05 51.97 -19 58 52.7 c 699
2001-04-26 07:20:20 C 13 06 05.79 -19 59 46.9 c 699
2001-04-26 09:11:07 C 13 07 00.70 -20 03 09.0 c 699
2001-04-26 09:13:22 C 13 07 01.66 -20 03 12.9 c 699
2001-04-26 09:15:38 C 13 07 02.89 -20 03 17.9 c 699
2001-04-26 09:17:54 C 13 07 04.04 -20 03 21.6 c 699
2001-04-26 21:51:02 C 13 13 20.91 -20 25 47.4 557
2001-04-26 21:51:58 C 13 13 21.47 -20 25 47.3 557
2001-04-26 21:52:55 C 13 13 21.80 -20 25 48.8 557
2001-04-26 21:53:51 C 13 13 22.31 -20 25 52.3 557
2001-04-26 23:00:56 C 13 13 51.63 -20 27 37.5 046
2001-04-26 23:02:30 C 13 13 52.20 -20 27 39.0 046
2001-04-27 04:35:20 C 13 16 26.05 -20 36 07.2 918
2001-04-27 04:38:06 C 13 16 27.18 -20 36 11.0 918
2001-04-27 04:42:48 C 13 16 29.05 -20 36 16.9 918
2001-04-27 04:47:26 C 13 16 30.96 -20 36 25.1 918
2001-04-27 04:51:42 C 13 16 32.83 -20 36 31.0 918
2001-04-28 06:40:44 C 13 26 45.44 -21 09 25.6 926
2001-04-28 06:42:20 C 13 26 45.95 -21 09 27.4 926
2001-04-29 06:38:37 C 13 34 36.87 -21 32 44.2 926
2001-04-29 06:41:40 C 13 34 37.75 -21 32 46.5 926
2001-04-30 06:57:35 C 13 41 19.63 -21 51 07.4 926
2001-04-30 06:58:41 C 13 41 19.89 -21 51 08.0 926