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
2025-03-07 21:17:41 B 12 09 18.89 +65 33 39.1 X L99
2025-03-07 22:07:39 C 12 07 36.326 +65 24 28.22 Z C23
2025-03-07 22:24:23 C 12 07 01.750 +65 21 26.17 Z C23
2025-03-07 22:29:34 C 12 06 50.844 +65 20 29.83 Z C23
2025-03-07 22:32:28 C 12 06 44.906 +65 19 59.27 Z C23
2025-03-07 23:35:20 B 12 04 37.248 +65 08 32.93 W Z80
2025-03-07 23:39:21 B 12 04 29.225 +65 07 49.26 W Z80
2025-03-07 23:43:23 B 12 04 21.062 +65 07 05.48 W Z80
2025-03-08 15:23:17 C 11 38 03.21 +62 16 24.9 q 168
2025-03-08 16:34:33 C 11 36 22.79 +62 03 54.2 q 168
2025-03-08 17:45:34 C 11 34 44.80 +61 51 27.8 q 168
2025-03-08 18:02:31 B 11 34 23.69 +61 48 21.8 X L99
2025-03-08 18:03:22 B 11 34 22.44 +61 48 13.2 X L99
2025-03-08 18:04:13 B 11 34 21.24 +61 48 05.1 X L99
2025-03-08 18:05:04 B 11 34 20.14 +61 47 55.8 X L99
2025-03-08 18:05:55 B 11 34 18.95 +61 47 46.0 X L99
2025-03-08 19:01:36 C 11 33 02.05 +61 38 09.8 q 168
2025-03-08 19:52:28 B 11 31 58.406 +61 29 02.18 W Z80
2025-03-08 19:55:31 B 11 31 54.430 +61 28 30.61 W Z80
2025-03-08 20:17:38 C 11 31 21.65 +61 24 53.0 q 168
2025-03-08 20:28:17 C 11 31 10.77 +61 23 02.6 V M32
2025-03-08 20:28:58 C 11 31 09.90 +61 22 55.5 V M32
2025-03-08 20:29:38 C 11 31 09.04 +61 22 48.8 V M32
2025-03-08 20:30:18 C 11 31 08.16 +61 22 41.6 V M32
2025-03-08 20:30:59 C 11 31 07.28 +61 22 34.5 V M32
2025-03-08 20:31:38 C 11 31 06.43 +61 22 27.8 V M32
2025-03-08 20:32:20 C 11 31 05.58 +61 22 20.8 V M32
2025-03-08 20:33:01 C 11 31 04.65 +61 22 13.5 V M32
2025-03-08 20:33:12 C 11 31 04.41 +61 22 11.7 V M32
2025-03-08 21:25:39 C 11 29 53.93 +61 13 00.8 q 168
2025-03-08 22:05:56 B 11 29 06.646 +61 06 02.66 V L65
2025-03-08 22:07:51 B 11 29 04.241 +61 05 42.83 V L65
2025-03-08 22:09:45 B 11 29 01.858 +61 05 23.14 V L65
2025-03-08 22:34:46 B 11 28 31.238 +61 01 04.19 W Z80
2025-03-08 22:37:36 C 11 28 23.42 +61 00 29.2 q 168
2025-03-08 22:50:15 B 11 28 09.722 +60 58 32.92 V A92
2025-03-08 23:12:08 B 11 27 42.694 +60 54 46.48 V A92
2025-03-08 23:27:25 B 11 27 23.899 +60 52 05.84 V A92
2025-03-08 23:49:44 C 11 26 54.93 +60 47 56.8 q 168
2025-03-09 00:39:36 C 11 25 55.18 +60 39 18.4 q 168
2025-03-09 01:01:39 C 11 25 29.09 +60 35 29.1 q 168
2025-03-09 02:16:16 C 11 24 03.852 +60 23 03.37 Z C23
2025-03-09 02:59:53 C 11 23 13.620 +60 15 34.56 Z C23
2025-03-09 03:25:43 C 11 22 44.213 +60 11 09.53 Z C23
2025-03-09 20:17:26 B 11 06 27.833 +57 27 29.48 V P87
2025-03-09 20:20:07 B 11 06 25.661 +57 27 04.36 V P87
2025-03-09 20:22:48 B 11 06 23.412 +57 26 39.34 V P87
2025-03-09 20:29:48 B 11 06 17.539 +57 25 33.71 V P87
2025-03-09 20:36:26 B 11 06 20.165 +57 24 36.94 W Z80
2025-03-09 20:39:28 B 11 06 17.623 +57 24 09.14 W Z80