399308 (1993 GD)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2380503325 ± 2.00e+00
Semi-major axis (a)1.1023744246 AU ± 3.00e+00
Inclination (i)15.46354627° ± 4.00e+00
Long. of Asc. Node (Ω)201.41604017° ± 5.00e+00
Arg. of Perihelion (ω)202.11578898° ± 6.00e+00
Mean Anomaly (M)201.43618550° ± 2.02e-05
Mean Motion (n)0.8515665284°/day ± 3.48e+00
Perihelion dist (q)0.83995383 AU ± 3.18e+00
Aphelion dist (Q)1.36479502 AU ± 4.32e+00
Orbital Period1.15742722 yr ± 4.72e+00
NGA Modelr2
A29.09187218e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.327″
Uncertainty0
Orbit TypeApollo
MOID0.142941 AU
Observations Used156
Oppositions4
Arc Total1993-2023
First Observation Used1993-04-15
Last Observation Used2023-02-01
Observations (170)
Date Type RA Dec Mag Band Observatory
1993-04-15 04:59:04 c 11 55 54.73 -02 37 21.3 i 691
1993-04-15 05:43:03 c 11 55 52.93 -02 35 58.1 i 691
1993-04-15 06:21:52 c 11 55 51.29 -02 34 44.5 i 691
1993-04-17 04:49:35 C 11 54 21.67 -01 09 28.5 a 691
1993-04-17 05:20:22 C 11 54 20.58 -01 08 33.2 a 691
1993-04-17 05:51:04 C 11 54 19.47 -01 07 38.8 a 691
1993-04-18 03:28:37 c 11 53 43.51 -00 29 46.8 i 691
1993-04-18 03:59:42 c 11 53 42.52 -00 28 53.1 i 691
1993-04-18 04:30:22 c 11 53 41.49 -00 28 00.2 i 691
1993-04-24 03:59:47 c 11 50 58.94 +03 14 06.6 i 691
1993-04-24 04:14:21 c 11 50 58.67 +03 14 26.9 i 691
1993-04-24 04:28:42 c 11 50 58.36 +03 14 47.4 i 691
1993-04-27 04:02:47 c 11 50 27.84 +04 47 10.2 i 691
1993-04-27 04:10:55 c 11 50 27.75 +04 47 20.0 i 691
1993-04-27 04:19:49 c 11 50 27.73 +04 47 31.4 i 691
1993-05-14 04:06:56 c 11 56 23.68 +10 19 19.3 i 691
1993-05-14 04:50:50 c 11 56 24.69 +10 19 41.7 i 691
1993-05-14 05:28:59 c 11 56 25.99 +10 19 59.8 i 691
2000-05-03 06:30:07 C 14 13 04.29 +05 34 49.6 b 691
2000-05-03 06:37:28 C 14 13 03.63 +05 35 01.1 b 691
2000-05-03 06:43:32 C 14 13 03.13 +05 35 10.1 b 691
2000-05-03 06:58:50 C 14 13 01.81 +05 35 33.2 b 691
2000-05-03 07:09:19 C 14 13 00.92 +05 35 48.7 b 691
2000-05-03 07:20:53 C 14 12 59.85 +05 36 06.8 b 691
2000-05-06 07:14:57 C 14 07 19.64 +07 19 41.6 b 691
2000-05-06 07:21:15 C 14 07 19.10 +07 19 49.6 b 691
2000-05-06 07:27:21 C 14 07 18.61 +07 19 58.7 b 691
2006-05-25 11:08:07 C 21 58 53.65 +15 20 13.4 d 291
2006-05-25 11:13:46 C 21 58 54.45 +15 20 20.1 d 291
2007-04-29 07:04:34 C 16 51 31.81 +00 22 34.1 21.2 o H55
2007-04-29 07:11:32 C 16 51 31.48 +00 22 46.1 21.4 o H55
2007-04-29 07:18:41 C 16 51 31.17 +00 22 58.4 21.1 o H55
2007-05-15 08:03:52 C 16 26 58.66 +11 19 35.7 r G96
2007-05-15 08:13:29 C 16 26 57.80 +11 19 51.2 r G96
2007-05-15 08:23:03 C 16 26 56.94 +11 20 06.5 r G96
2007-05-15 08:32:52 C 16 26 56.11 +11 20 22.9 r G96
2007-05-22 06:54:50 C 16 12 20.34 +15 30 16.5 o H55
2007-05-22 06:58:43 C 16 12 19.99 +15 30 21.9 o H55
2007-05-22 07:02:38 C 16 12 19.58 +15 30 27.8 o H55
2007-05-22 07:05:52 C 16 12 19.26 +15 30 32.0 o H55
2007-05-22 07:08:31 C 16 12 19.06 +15 30 35.6 o H55
2007-09-13 03:43:39 C 16 23 27.61 +05 05 12.8 o 291
2007-09-13 03:49:57 C 16 23 28.22 +05 05 07.1 o 291
2007-09-13 03:55:25 C 16 23 28.58 +05 05 01.4 o 291
2008-03-26 02:44:26 C 09 18 42.90 -11 46 28.0 r 448
2008-03-26 03:18:55 C 09 18 44.74 -11 45 06.4 r 448
2008-03-26 03:48:55 C 09 18 46.28 -11 43 55.5 r 448
2014-06-18 04:36:08 C 18 14 00.58 +34 01 25.5 u H21
2014-06-18 04:40:57 C 18 14 00.13 +34 01 32.2 u H21
2014-06-18 04:45:34 C 18 13 59.75 +34 01 39.1 u H21