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
2008-05-11 22:59:46 C 16 55 22.45 +62 07 27.0 c A94
2008-05-11 23:01:19 C 16 55 22.17 +62 07 51.3 c A94
2008-05-12 23:26:41 C 16 51 00.82 +68 46 43.1 o 510
2008-05-12 23:28:27 C 16 51 00.33 +68 47 12.8 o 510
2008-05-12 23:30:13 C 16 50 59.91 +68 47 41.9 o 510
2012-04-15 13:05:20 C 15 10 05.147 +01 19 44.20 L F51
2012-04-15 13:22:10 C 15 10 03.929 +01 19 55.66 L F51
2012-04-16 07:40:55 C 15 08 45.59 +01 32 27.7 o 807
2012-04-16 07:47:55 C 15 08 45.05 +01 32 32.7 o 807
2012-04-16 07:54:53 C 15 08 44.54 +01 32 37.4 o 807
2012-04-16 08:01:52 C 15 08 44.00 +01 32 42.2 o 807
2012-04-16 08:11:38 C 15 08 43.83 +01 32 43.2 t F65
2012-04-16 08:13:59 C 15 08 43.65 +01 32 44.8 t F65
2012-04-16 08:16:21 C 15 08 43.48 +01 32 46.4 t F65
2012-04-20 06:54:17 C 15 01 23.47 +02 39 25.4 o 691
2012-04-20 07:19:50 C 15 01 21.50 +02 39 41.8 o 691
2012-04-20 07:45:24 C 15 01 19.34 +02 40 00.6 o 691
2012-04-24 04:53:28 C 14 53 09.87 +03 48 58.6 o 691
2012-04-24 05:19:02 C 14 53 07.51 +03 49 16.4 o 691
2012-04-24 05:44:38 C 14 53 05.02 +03 49 36.9 o 691
2012-05-01 06:42:55 C 14 35 55.75 +06 00 33.0 o 291
2012-05-01 06:44:09 C 14 35 55.62 +06 00 34.1 o 291
2012-05-01 06:45:21 C 14 35 55.52 +06 00 35.0 o 291
2012-05-09 21:57:13 C 14 11 17.01 +08 42 18.2 t 204
2012-05-09 22:15:53 C 14 11 14.59 +08 42 32.6 t 204
2012-05-09 22:34:29 C 14 11 12.21 +08 42 46.6 t 204
2012-05-13 20:19:21 C 13 59 03.97 +09 52 22.4 u A13
2012-05-13 20:55:56 C 13 58 58.99 +09 52 48.9 u A13
2012-05-14 05:23:28 C 13 57 51.91 +09 58 55.0 r 703
2012-05-14 05:36:34 C 13 57 50.04 +09 59 04.5 r 703
2012-05-14 05:48:52 C 13 57 48.52 +09 59 13.8 r 703
2012-05-14 06:01:03 C 13 57 46.90 +09 59 20.2 r 703
2013-03-22 07:16:39 C 12 46 31.13 +08 49 57.8 u H21
2013-03-22 07:40:25 C 12 46 29.76 +08 50 07.0 u H21
2013-03-22 08:05:09 C 12 46 28.26 +08 50 16.5 u H21
2013-04-06 08:06:23 C 12 26 12.041 +10 49 58.38 L F51
2013-04-06 08:26:12 C 12 26 10.936 +10 50 04.07 L F51
2016-04-03 11:49:42 C 14 53 15.452 -00 35 34.61 L F51
2016-04-03 12:07:00 C 14 53 14.626 -00 35 27.24 L F51
2016-04-03 12:41:34 C 14 53 12.980 -00 35 12.52 L F51
2016-04-04 11:32:17 C 14 52 08.711 -00 25 28.03 L F51
2016-04-04 11:49:25 C 14 52 07.861 -00 25 20.72 L F51
2016-04-04 12:06:40 C 14 52 07.026 -00 25 13.54 L F51
2016-05-03 09:36:39 C 14 06 59.961 +04 51 50.97 L F51
2016-05-03 09:56:15 C 14 06 58.395 +04 51 59.30 L F51
2016-05-03 10:15:56 C 14 06 56.848 +04 52 07.90 L F51
2016-06-08 04:53:08 C 13 06 16.79 +08 37 36.0 q G96
2016-06-08 05:01:20 C 13 06 16.29 +08 37 37.3 q G96
2016-06-08 05:09:21 C 13 06 15.89 +08 37 37.7 q G96
2016-06-08 05:17:28 C 13 06 15.45 +08 37 37.5 q G96