465402 (2008 HW1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.9600469670 ± 2.14e-09
Semi-major axis (a)2.5857488222 AU ± 8.71e-10
Inclination (i)10.46620799° ± 1.86e-06
Long. of Asc. Node (Ω)127.42972597° ± 1.29e-05
Arg. of Perihelion (ω)250.74299990° ± 1.21e-05
Mean Anomaly (M)69.97425658° ± 3.03e-07
Mean Motion (n)0.2370460773°/day ± 1.20e-10
Perihelion dist (q)0.10330851 AU ± 5.54e-09
Aphelion dist (Q)5.06818914 AU ± 5.80e-09
Orbital Period4.15795230 yr ± 2.10e-09
Physical Parameters
H (abs. magnitude)17.39
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.200″
Uncertainty0
Orbit TypeApollo
MOID0.107247 AU
Observations Used661
Oppositions13
Arc Total2008-2025
First Observation Used2008-03-30
Last Observation Used2025-05-03
Observations (729)
Date Type RA Dec Mag Band Observatory
2008-03-30 11:17:20 C 16 48 29.23 -04 30 17.1 r 703
2008-03-30 11:27:35 C 16 48 29.59 -04 30 09.9 r 703
2008-03-30 11:37:50 C 16 48 29.88 -04 30 03.0 r 703
2008-03-30 11:48:10 C 16 48 30.16 -04 29 55.9 r 703
2008-04-14 10:21:29 C 16 58 08.25 +01 09 09.0 r 703
2008-04-14 10:27:56 C 16 58 08.40 +01 09 18.0 r 703
2008-04-14 10:34:20 C 16 58 08.50 +01 09 26.3 r 703
2008-04-25 08:25:18 C 17 02 34.50 +10 03 07.9 17.3 c 704
2008-04-25 08:40:36 C 17 02 34.61 +10 03 53.5 17.6 c 704
2008-04-25 08:55:58 C 17 02 34.68 +10 04 40.0 17.4 c 704
2008-04-25 09:11:13 C 17 02 34.79 +10 05 25.5 17.6 c 704
2008-04-25 09:26:29 C 17 02 34.89 +10 06 11.5 17.4 c 704
2008-04-26 23:20:31 C 17 02 57.96 +12 08 20.3 o 198
2008-04-26 23:29:41 C 17 02 58.01 +12 08 51.9 o 198
2008-04-26 23:33:25 C 17 02 58.03 +12 09 05.0 o 198
2008-04-26 23:35:00 C 17 02 58.04 +12 09 10.5 o 198
2008-04-27 00:06:38 C 17 02 58.25 +12 11 00.8 o 151
2008-04-27 00:07:28 C 17 02 58.23 +12 11 03.3 o 151
2008-04-27 00:08:19 C 17 02 58.19 +12 11 05.8 o 151
2008-04-27 00:18:25 C 17 02 58.27 +12 11 41.0 o 151
2008-04-27 00:20:21 C 17 02 58.26 +12 11 48.8 c 595
2008-04-27 00:21:16 C 17 02 58.29 +12 11 50.9 o 151
2008-04-27 00:22:07 C 17 02 58.29 +12 11 54.3 o 151
2008-04-27 00:22:57 C 17 02 58.30 +12 11 57.5 o 151
2008-04-27 00:23:48 C 17 02 58.29 +12 12 00.0 o 151
2008-04-27 00:24:38 C 17 02 58.33 +12 12 02.6 o 151
2008-04-27 00:26:19 C 17 02 58.31 +12 12 09.2 o 151
2008-04-27 00:26:34 C 17 02 58.24 +12 12 10.4 c 595
2008-04-27 01:47:32 C 17 02 58.58 +12 16 51.2 r 118
2008-04-27 01:50:23 C 17 02 58.58 +12 17 01.1 r 118
2008-04-27 01:53:14 C 17 02 58.59 +12 17 11.0 r 118
2008-04-27 01:55:08 C 17 02 58.60 +12 17 17.7 r 118
2008-04-27 01:57:58 C 17 02 58.61 +12 17 27.6 r 118
2008-04-27 02:00:05 C 17 02 58.65 +12 17 35.5 o B03
2008-04-27 02:05:09 C 17 02 58.68 +12 17 53.0 o B03
2008-04-27 02:16:59 C 17 02 58.70 +12 18 33.9 o B03
2008-04-27 02:22:36 C 17 02 58.72 +12 18 53.9 o B03
2008-04-27 02:28:14 C 17 02 58.75 +12 19 13.3 o B03
2008-04-27 05:18:29 C 17 03 01.25 +12 29 13.6 o H55
2008-04-27 05:24:11 C 17 03 01.29 +12 29 33.8 o H55
2008-04-27 05:29:59 C 17 03 01.32 +12 29 54.3 o H55
2008-04-27 05:40:02 C 17 03 01.37 +12 30 29.9 o H55
2008-04-27 05:49:07 C 17 03 01.41 +12 31 02.2 o H55
2008-04-27 05:58:08 C 17 03 01.49 +12 31 33.7 o H55
2008-04-27 06:18:16 C 17 03 01.94 +12 32 47.8 c 854
2008-04-27 06:20:30 C 17 03 01.90 +12 32 55.2 r H06
2008-04-27 06:21:02 C 17 03 01.95 +12 32 57.1 c 854
2008-04-27 06:23:48 C 17 03 01.93 +12 33 07.2 c 854
2008-04-27 06:23:50 C 17 03 01.90 +12 33 07.5 r H06
2008-04-27 06:27:10 C 17 03 01.89 +12 33 18.7 r H06