394783 (2008 HD3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3361290137 ± 1.90e-07
Semi-major axis (a)1.1314159246 AU ± 2.05e-09
Inclination (i)52.00567564° ± 1.91e-05
Long. of Asc. Node (Ω)222.06904053° ± 2.95e-06
Arg. of Perihelion (ω)223.76335156° ± 3.29e-05
Mean Anomaly (M)322.58615327° ± 5.81e-05
Mean Motion (n)0.8189904648°/day ± 2.23e-09
Perihelion dist (q)0.75111421 AU ± 2.15e-07
Aphelion dist (Q)1.51171764 AU ± 2.15e-07
Orbital Period1.20346491 yr ± 3.27e-09
Physical Parameters
H (abs. magnitude)19.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.181537 AU
Observations Used152
Oppositions3
Arc Total2008-2025
First Observation Used2008-04-28
Last Observation Used2025-06-02
Observations (162)
Date Type RA Dec Mag Band Observatory
2008-04-28 06:20:57 C 15 56 03.36 -12 27 52.1 o 691
2008-04-28 06:46:21 C 15 55 58.45 -12 25 50.9 o 691
2008-04-28 07:11:44 C 15 55 53.58 -12 23 49.2 o 691
2008-04-28 08:40:48 C 15 55 36.47 -12 16 44.2 o 291
2008-04-28 08:51:00 C 15 55 34.41 -12 15 53.4 o 291
2008-04-28 08:57:02 C 15 55 33.29 -12 15 25.0 c 854
2008-04-28 09:02:14 C 15 55 32.28 -12 14 59.8 c 854
2008-04-28 09:12:38 C 15 55 30.31 -12 14 09.9 c 854
2008-04-28 09:15:46 C 15 55 29.57 -12 13 55.7 o H01
2008-04-28 09:19:55 C 15 55 28.78 -12 13 36.2 o H01
2008-04-28 09:24:57 C 15 55 27.81 -12 13 11.9 o H01
2008-04-28 10:59:13 C 15 55 09.76 -12 05 39.3 o 291
2008-04-28 11:11:19 C 15 55 07.42 -12 04 40.9 o 291
2008-04-28 11:17:00 C 15 55 06.34 -12 04 13.8 o 291
2008-04-29 22:32:32 C 15 48 35.10 -09 15 41.1 r A13
2008-04-29 22:36:32 C 15 48 34.34 -09 15 22.5 r A13
2008-04-29 22:59:34 C 15 48 30.00 -09 13 32.7 r A13
2008-04-29 23:03:41 C 15 48 29.23 -09 13 13.7 r A13
2008-04-29 23:27:10 C 15 48 24.79 -09 11 21.7 r A13
2008-04-29 23:31:07 C 15 48 24.04 -09 11 03.0 r A13
2008-04-30 06:08:41 C 15 47 11.52 -08 39 30.6 o 691
2008-04-30 06:09:41 C 15 47 11.32 -08 39 26.3 o 291
2008-04-30 06:15:08 C 15 47 10.28 -08 38 59.5 o 291
2008-04-30 06:20:38 C 15 47 09.25 -08 38 34.1 o 291
2008-04-30 06:34:04 C 15 47 06.77 -08 37 30.8 o 691
2008-04-30 06:55:54 C 15 47 02.62 -08 35 47.0 o 691
2008-04-30 07:10:36 C 15 46 59.69 -08 34 38.4 18.4 c 704
2008-04-30 07:25:07 C 15 46 56.95 -08 33 29.3 19.3 c 704
2008-04-30 07:39:37 C 15 46 54.20 -08 32 20.9 18.8 c 704
2008-04-30 07:54:11 C 15 46 51.48 -08 31 11.5 18.8 c 704
2008-05-01 07:22:26 C 15 42 34.80 -06 40 25.3 19.1 c 704
2008-05-01 07:37:17 C 15 42 32.02 -06 39 16.1 19.5 c 704
2008-05-01 07:52:07 C 15 42 29.20 -06 38 06.2 19.1 c 704
2008-05-01 08:07:04 C 15 42 26.41 -06 36 55.7 19.2 c 704
2008-05-01 08:21:57 C 15 42 23.68 -06 35 46.1 19.1 c 704
2008-05-02 01:31:29 C 15 39 17.76 -05 15 49.6 o 204
2008-05-02 01:39:45 C 15 39 16.24 -05 15 11.2 o 204
2008-05-02 01:48:20 C 15 39 14.65 -05 14 31.5 o 204
2008-05-03 08:32:19 C 15 33 47.47 -02 53 44.2 r 448
2008-05-03 08:43:46 C 15 33 45.44 -02 52 52.6 r 448
2008-05-03 08:55:52 C 15 33 43.23 -02 51 58.4 r 448
2008-05-04 04:48:45 C 15 30 16.62 -01 23 02.0 o 691
2008-05-04 05:14:09 C 15 30 12.16 -01 21 10.8 o 691
2008-05-04 05:39:36 C 15 30 07.56 -01 19 17.1 o 691
2008-05-04 07:09:02 C 15 29 51.22 -01 12 45.5 o H55
2008-05-04 07:12:27 C 15 29 50.60 -01 12 30.6 o H55
2008-05-04 07:15:55 C 15 29 49.99 -01 12 15.5 o H55
2008-05-04 07:19:40 C 15 29 49.31 -01 11 58.8 o H55
2008-05-04 07:23:17 C 15 29 48.67 -01 11 42.9 o H55
2008-05-05 07:55:54 C 15 25 36.82 +00 35 05.8 o H55