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
2008-04-30 07:00:00 C 17 03 26.94 +17 31 29.5 r H45
2008-04-30 07:00:48 C 17 03 26.94 +17 31 33.5 r H45
2008-04-30 21:05:47 C 17 03 29.58 +18 40 23.3 d A77
2008-04-30 21:14:43 C 17 03 29.59 +18 41 08.7 d A77
2008-04-30 21:26:19 C 17 03 29.60 +18 42 07.8 d A77
2008-04-30 23:04:18 C 17 03 29.32 +18 50 24.5 c 127
2008-04-30 23:08:13 C 17 03 29.35 +18 50 44.3 c 127
2008-04-30 23:17:08 C 17 03 29.28 +18 51 30.1 c 127
2008-05-01 01:52:08 C 17 03 28.91 +19 04 48.3 r 232
2008-05-01 01:57:50 C 17 03 28.90 +19 05 17.7 r 232
2008-05-01 02:03:33 C 17 03 28.88 +19 05 47.1 r 232
2008-05-01 21:19:53 C 17 03 30.25 +20 49 20.8 o 198
2008-05-01 21:22:35 C 17 03 30.25 +20 49 35.8 o 198
2008-05-01 21:25:16 C 17 03 30.25 +20 49 51.2 o 198
2008-05-01 21:30:40 C 17 03 30.26 +20 50 21.6 o 198
2008-05-02 01:38:27 C 17 03 29.06 +21 13 52.6 r B19
2008-05-02 01:40:59 C 17 03 29.07 +21 14 06.8 r B19
2008-05-02 01:45:02 C 17 03 29.05 +21 14 30.1 r B19
2008-05-02 02:44:26 C 17 03 28.46 +21 20 09.2 o 204
2008-05-02 02:48:29 C 17 03 28.43 +21 20 32.6 o 204
2008-05-02 02:52:50 C 17 03 28.40 +21 20 57.5 o 204
2008-05-02 20:16:11 C 17 03 27.83 +23 04 56.6 r A78
2008-05-02 20:21:13 C 17 03 27.85 +23 05 28.6 r A78
2008-05-02 20:27:37 C 17 03 27.79 +23 06 08.0 r A78
2008-05-02 20:33:31 C 17 03 27.73 +23 06 44.8 r A78
2008-05-03 06:42:21 C 17 03 24.65 +24 11 39.2 r H45
2008-05-03 06:44:16 C 17 03 24.63 +24 11 51.8 r H45
2008-05-03 06:45:20 C 17 03 24.61 +24 11 58.8 r H45
2008-05-03 06:47:11 C 17 03 24.60 +24 12 10.8 r H45
2008-05-03 06:49:09 C 17 03 24.56 +24 12 23.9 r H45
2008-05-03 06:51:51 C 17 03 24.54 +24 12 41.4 r H45
2008-05-03 06:54:18 C 17 03 24.52 +24 12 57.5 r H45
2008-05-03 21:12:51 C 17 03 20.36 +25 49 33.6 r A78
2008-05-03 21:19:09 C 17 03 20.29 +25 50 17.6 r A78
2008-05-03 21:25:26 C 17 03 20.23 +25 51 02.0 r A78
2008-05-03 21:32:21 C 17 03 20.17 +25 51 50.7 r A78
2008-05-03 22:32:55 C 17 03 19.52 +25 58 57.3 r B09
2008-05-03 22:40:06 C 17 03 19.43 +25 59 48.2 r B09
2008-05-03 22:48:50 C 17 03 19.35 +26 00 50.0 r B09
2008-05-03 23:33:16 C 17 03 18.79 +26 06 04.3 r A13
2008-05-03 23:36:16 C 17 03 18.75 +26 06 25.5 r A13
2008-05-03 23:39:16 C 17 03 18.72 +26 06 46.8 r A13
2008-05-04 00:00:59 C 17 03 18.24 +26 09 17.9 r A35
2008-05-04 00:03:03 C 17 03 18.21 +26 09 32.4 r A35
2008-05-04 00:03:59 C 17 03 18.39 +26 09 42.2 r A13
2008-05-04 00:05:06 C 17 03 18.18 +26 09 47.1 r A35
2008-05-04 00:06:36 C 17 03 18.36 +26 10 00.9 r A13
2008-05-04 00:07:11 C 17 03 18.14 +26 10 01.9 r A35
2008-05-04 00:08:34 C 17 03 18.13 +26 10 11.5 r A35
2008-05-04 00:09:59 C 17 03 18.32 +26 10 24.9 r A13