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
2008-05-05 08:00:19 C 15 25 36.04 +00 35 25.0 o H55
2008-05-05 08:04:39 C 15 25 35.31 +00 35 43.4 o H55
2008-05-06 06:34:22 C 15 21 49.80 +02 10 45.5 o H55
2008-05-06 06:39:59 C 15 21 48.78 +02 11 08.6 o H55
2008-05-06 06:45:38 C 15 21 47.76 +02 11 31.5 o H55
2008-05-08 22:46:37 C 15 11 32.16 +06 25 10.2 o 246
2008-05-08 22:48:18 C 15 11 31.87 +06 25 16.6 o 246
2008-05-08 22:49:05 C 15 11 31.72 +06 25 19.3 o 246
2008-05-08 22:50:07 C 15 11 31.55 +06 25 22.7 o 246
2008-05-08 22:51:02 C 15 11 31.42 +06 25 26.7 o 246
2008-05-08 22:51:48 C 15 11 31.24 +06 25 29.8 o 246
2008-05-09 22:33:59 C 15 07 54.10 +07 52 41.2 r 113
2008-05-09 22:35:41 C 15 07 53.84 +07 52 47.4 r 113
2008-05-09 22:37:24 C 15 07 53.57 +07 52 53.7 r 113
2008-05-09 22:39:06 C 15 07 53.31 +07 52 59.6 r 113
2008-05-09 22:40:48 C 15 07 53.05 +07 53 05.9 r 113
2008-05-13 06:02:00 C 14 56 31.66 +12 17 32.2 r 703
2008-05-13 06:12:12 C 14 56 30.15 +12 18 03.8 r 703
2008-05-13 06:22:20 C 14 56 28.82 +12 18 34.0 r 703
2008-05-13 06:32:26 C 14 56 27.42 +12 19 05.9 r 703
2008-05-19 05:39:39 C 14 39 02.99 +18 32 09.4 o H55
2008-05-19 05:49:31 C 14 39 01.89 +18 32 31.0 o H55
2008-05-19 05:57:45 C 14 39 00.97 +18 32 49.1 o H55
2008-05-21 05:23:34 C 14 34 07.19 +20 10 12.3 o H55
2008-05-21 05:32:14 C 14 34 06.33 +20 10 28.1 o H55
2008-05-21 05:40:39 C 14 34 05.49 +20 10 42.3 o H55
2008-05-29 04:06:32 C 14 18 29.36 +24 57 56.9 o H55
2008-05-29 04:18:46 C 14 18 28.48 +24 58 10.9 o H55
2008-05-29 04:31:00 C 14 18 27.65 +24 58 25.0 o H55
2008-06-15 02:43:45 C 14 02 56.92 +29 20 36.3 21.8 o H55
2008-06-15 03:00:03 C 14 02 56.66 +29 20 41.1 21.5 o H55
2008-06-15 03:16:03 C 14 02 56.42 +29 20 45.9 21.7 o H55
2009-07-02 07:09:13 C 11 28 51.221 +00 46 40.14 o 568
2009-07-04 06:46:28 C 11 35 19.608 +01 10 51.04 o 568
2013-05-07 08:07:59 C 19 03 57.17 +32 34 21.7 o 291
2013-05-07 08:18:56 C 19 03 56.98 +32 34 46.4 o 291
2013-06-04 07:58:48 C 18 27 59.40 +54 25 39.1 u H21
2013-06-04 08:49:57 C 18 27 54.03 +54 26 54.3 u H21
2013-06-19 05:37:24 C 17 43 11.21 +61 06 35.8 u H21
2013-06-19 06:01:01 C 17 43 07.69 +61 06 54.6 u H21
2013-06-19 06:25:22 C 17 43 04.17 +61 07 13.4 u H21
2013-07-10 03:38:46 C 16 31 45.14 +63 46 10.6 u H21
2013-07-10 04:08:12 C 16 31 41.54 +63 46 08.0 u H21
2013-07-10 04:52:51 C 16 31 35.88 +63 46 05.2 u H21
2014-04-15 04:23:40 C 16 31 44.60 -46 49 56.9 u 807
2014-04-15 04:29:45 C 16 31 43.07 -46 49 36.0 u 807
2014-04-15 04:36:23 C 16 31 41.41 -46 49 12.9 u 807
2014-04-30 10:50:21 C 15 08 09.135 -17 20 07.56 L F51
2014-04-30 11:07:29 C 15 08 05.671 -17 18 33.23 L F51
2014-04-30 11:24:35 C 15 08 02.229 -17 16 59.03 L F51