2008 SD

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7395937337 ± 5.79e-08
Semi-major axis (a)2.0363904759 AU ± 1.62e-08
Inclination (i)17.09263044° ± 1.45e-05
Long. of Asc. Node (Ω)26.45428079° ± 4.41e-05
Arg. of Perihelion (ω)220.77035317° ± 5.04e-05
Mean Anomaly (M)346.52425842° ± 1.50e-05
Mean Motion (n)0.3391725451°/day ± 4.04e-09
Perihelion dist (q)0.53028884 AU ± 1.18e-07
Aphelion dist (Q)3.54249211 AU ± 1.21e-07
Orbital Period2.90597307 yr ± 3.46e-08
Physical Parameters
H (abs. magnitude)19.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.234″
Uncertainty0
Orbit TypeApollo
MOID0.198637 AU
Observations Used42
Oppositions8
Arc Total2008-2020
First Observation Used2008-09-19
Last Observation Used2020-01-06
Observations (48)
Date Type RA Dec Mag Band Observatory
2008-09-19 14:29:34 C 01 16 47.53 -42 18 15.9 r E12
2008-09-19 14:45:13 C 01 16 40.74 -42 17 18.8 r E12
2008-09-19 15:00:55 C 01 16 33.94 -42 16 22.3 r E12
2008-09-19 15:16:50 C 01 16 27.03 -42 15 25.3 r E12
2008-09-20 10:42:02 C 01 08 37.47 -41 05 16.0 r E12
2008-09-20 10:46:54 C 01 08 35.58 -41 04 58.9 r E12
2008-09-20 10:51:07 C 01 08 33.909 -41 04 44.29 r E12
2008-09-20 15:10:54 C 01 06 51.796 -40 49 26.59 r E12
2008-09-20 15:15:14 C 01 06 50.072 -40 49 11.04 r E12
2008-09-20 19:02:13 C 01 05 22.27 -40 35 34.9 r E12
2008-09-21 14:13:31 C 00 58 29.640 -39 28 06.98 r E12
2008-09-21 14:19:06 C 00 58 27.646 -39 27 47.47 r E12
2008-09-21 19:06:24 C 00 56 46.78 -39 10 58.5 r E12
2008-09-25 16:59:30 C 00 30 15.78 -34 05 04.4 r E12
2008-09-25 17:02:56 C 00 30 14.95 -34 04 53.9 r E12
2008-10-03 13:09:30 C 23 58 39.97 -26 00 40.8 r E12
2008-10-03 13:56:21 C 23 58 34.18 -25 58 59.4 r E12
2008-10-07 07:35:11 C 23 49 32.44 -23 01 12.6 r 448
2008-10-07 07:55:12 C 23 49 30.70 -23 00 36.1 r 448
2008-10-07 08:15:16 C 23 49 28.89 -22 59 58.0 r 448
2008-10-18 02:11:00 C 23 35 11.16 -16 36 11.5 o 448
2008-10-18 03:43:05 C 23 35 07.90 -16 34 20.9 o 448
2008-10-18 04:10:42 C 23 35 07.05 -16 33 46.5 o 291
2008-10-18 04:16:38 C 23 35 06.86 -16 33 39.5 o 291
2008-10-18 04:22:13 C 23 35 06.69 -16 33 32.6 o 291
2017-01-21 03:52:15 C 12 04 42.45 +50 20 27.5 q J95
2017-01-21 04:00:14 C 12 04 43.53 +50 20 39.3 q J95
2017-01-21 04:08:07 C 12 04 44.58 +50 20 51.0 q J95
2017-01-21 18:39:55 C 12 06 45.77 +50 42 15.0 q J95
2017-01-21 19:44:09 C 12 06 55.13 +50 43 52.8 q J95
2017-01-21 20:04:30 C 12 06 58.00 +50 44 24.6 q J95
2017-02-05 21:47:30 C 13 30 35.72 +62 07 42.3 q J95
2017-02-05 21:55:40 C 13 30 38.99 +62 08 01.2 q J95
2017-02-05 22:03:59 C 13 30 42.31 +62 08 19.9 q J95
2017-02-07 07:08:36 C 13 44 54.20 +63 21 19.2 t 705
2017-02-07 07:10:03 C 13 44 54.86 +63 21 22.6 t 705
2017-02-07 07:11:31 C 13 44 55.44 +63 21 26.5 t 705
2017-02-15 04:20:35 C 16 00 12.62 +68 39 47.4 U 204
2017-02-15 04:30:48 C 16 00 22.76 +68 39 53.0 U 204
2017-02-15 04:41:00 C 16 00 32.95 +68 39 58.4 U 204
2017-02-19 15:35:28 S 17 57 26.98 +67 03 31.5 L C51
2017-02-19 18:44:09 S 18 00 51.90 +66 55 26.7 L C51
2017-02-19 20:18:13 S 18 02 33.67 +66 51 18.0 L C51
2017-02-19 21:52:39 S 18 04 15.51 +66 47 02.2 L C51
2020-01-06 11:48:55 C 14 00 02.73 +14 46 30.4 V G96
2020-01-06 11:57:04 C 14 00 04.69 +14 46 18.8 V G96
2020-01-06 12:05:14 C 14 00 06.60 +14 46 07.1 V G96
2020-01-06 12:13:23 C 14 00 08.49 +14 45 55.6 V G96