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
2021-02-18 09:38:02 C 13 39 09.12 +04 43 40.5 V 703
2021-02-18 09:45:38 C 13 39 08.27 +04 43 47.4 V 703
2021-02-18 09:53:14 C 13 39 07.41 +04 43 54.1 V 703
2021-02-18 10:00:50 C 13 39 06.53 +04 44 01.8 V 703
2021-03-06 10:14:00 C 12 53 29.62 +10 52 00.0 V G96
2021-03-06 10:21:24 C 12 53 28.69 +10 52 06.4 V G96
2021-03-06 10:36:11 C 12 53 26.85 +10 52 19.2 V G96
2021-03-06 10:43:38 C 12 53 25.92 +10 52 25.6 V G96
2021-03-10 08:56:50 C 12 41 57.58 +12 09 55.1 V 703
2021-03-10 09:04:21 C 12 41 56.57 +12 10 00.8 V 703
2021-03-10 09:11:52 C 12 41 55.61 +12 10 06.0 V 703
2021-03-10 09:19:22 C 12 41 54.76 +12 10 11.4 V 703
2021-03-18 08:16:59 C 12 19 44.64 +14 21 59.6 V 703
2021-03-18 08:32:06 C 12 19 42.88 +14 22 11.9 V 703
2021-03-18 08:39:39 C 12 19 41.97 +14 22 17.5 V 703
2021-03-19 08:21:21 C 12 17 06.41 +14 36 04.7 V G96
2021-03-19 08:28:55 C 12 17 05.57 +14 36 09.2 V G96
2021-03-19 08:36:31 C 12 17 04.73 +14 36 13.3 V G96
2021-03-19 08:44:07 C 12 17 03.89 +14 36 17.9 V G96
2021-03-23 15:34:57 C 12 06 19.632 +15 29 45.20 V P07
2021-03-23 15:47:22 C 12 06 18.290 +15 29 50.75 V P07
2021-03-23 15:58:20 C 12 06 17.215 +15 29 56.62 V P07
2021-03-23 16:53:37 C 12 06 11.585 +15 30 22.07 V P07
2021-03-23 17:19:05 C 12 06 08.969 +15 30 33.88 V P07
2021-04-06 10:04:45 C 11 38 22.283 +17 14 45.51 U F51
2021-04-06 10:23:08 C 11 38 21.003 +17 14 48.81 U F51
2021-04-06 10:41:22 C 11 38 19.721 +17 14 52.08 U F51
2021-04-06 10:59:38 C 11 38 18.440 +17 14 55.31 U F51
2021-04-07 05:38:13 C 11 37 03.06 +17 18 12.0 V G96
2021-04-07 05:46:25 C 11 37 02.46 +17 18 13.6 V G96
2021-04-07 05:54:39 C 11 37 01.89 +17 18 14.9 V G96
2021-04-07 06:02:51 C 11 37 01.32 +17 18 16.3 V G96
2021-04-17 06:06:54 C 11 23 41.938 +17 41 11.96 U F51
2021-04-17 06:25:11 C 11 23 41.092 +17 41 12.54 U F51
2021-04-17 06:43:32 C 11 23 40.244 +17 41 13.17 U F51
2021-04-17 07:01:55 C 11 23 39.401 +17 41 13.75 U F51
2025-02-28 19:27:44 C 20 10 59.395 +32 07 00.01 q Q21
2025-02-28 19:33:42 C 20 10 55.442 +32 09 04.57 q Q21
2025-03-03 22:48:12 B 18 25 43.786 +61 41 48.08 W Z80
2025-03-03 22:58:19 B 18 25 15.658 +61 45 32.72 W Z80
2025-03-03 23:08:28 B 18 24 47.407 +61 49 17.40 W Z80
2025-03-04 21:22:55 B 17 04 17.179 +68 37 44.72 W Z80
2025-03-04 21:30:59 B 17 03 41.311 +68 39 37.08 W Z80
2025-03-04 22:22:42 C 16 59 51.04 +68 51 42.0 V M32
2025-03-04 22:23:13 C 16 59 48.75 +68 51 48.8 V M32
2025-03-04 22:23:42 C 16 59 46.51 +68 51 55.8 V M32
2025-03-04 22:24:13 C 16 59 44.19 +68 52 02.4 V M32
2025-03-04 22:24:43 C 16 59 41.88 +68 52 09.5 V M32
2025-03-04 22:25:20 C 16 59 39.19 +68 52 17.3 V M32
2025-03-04 22:25:49 C 16 59 36.92 +68 52 23.8 V M32