162117 (1998 SD15)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3447811863 ± 2.00e+00
Semi-major axis (a)0.9326108023 AU ± 3.00e+00
Inclination (i)26.79851824° ± 4.00e+00
Long. of Asc. Node (Ω)183.91077864° ± 5.00e+00
Arg. of Perihelion (ω)35.87830903° ± 6.00e+00
Mean Anomaly (M)164.75818051° ± 8.84e-06
Mean Motion (n)1.0943635356°/day ± 5.28e+00
Perihelion dist (q)0.61106414 AU ± 2.71e+00
Aphelion dist (Q)1.25415746 AU ± 4.44e+00
Orbital Period0.90063882 yr ± 4.35e+00
NGA Modelr2
A2-1.79358396e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.04
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.292″
Uncertainty0
Orbit TypeAten
MOID0.109327 AU
Observations Used725
Oppositions3
Arc Total1998-2025
First Observation Used1998-09-23
Last Observation Used2025-12-07
Observations (805)
Date Type RA Dec Mag Band Observatory
2007-09-12 06:45:09 C 20 49 41.38 +66 13 22.3 r H45
2007-09-12 06:45:51 C 20 49 41.69 +66 13 16.1 r H45
2007-09-12 06:46:48 C 20 49 42.05 +66 13 08.6 r H45
2007-09-12 18:17:29 C 20 54 43.97 +64 38 58.4 o B38
2007-09-12 18:21:42 C 20 54 45.49 +64 38 23.1 o B38
2007-09-12 18:26:02 C 20 54 47.11 +64 37 47.2 o B38
2007-09-12 18:31:09 C 20 54 49.06 +64 37 04.7 o B38
2007-09-12 18:36:12 C 20 54 50.94 +64 36 23.3 o B38
2007-09-12 18:41:17 C 20 54 52.83 +64 35 41.7 o B38
2007-09-12 18:46:03 C 20 54 54.63 +64 35 02.1 o B38
2007-09-12 18:51:42 C 20 54 56.81 +64 34 10.7 o 151
2007-09-12 18:52:35 C 20 54 57.02 +64 34 08.2 o B38
2007-09-12 18:52:53 C 20 54 57.24 +64 34 00.9 o 151
2007-09-12 18:54:04 C 20 54 57.66 +64 33 51.3 o 151
2007-09-12 20:32:28 C 20 55 33.97 +64 20 13.4 o 130
2007-09-12 20:33:35 C 20 55 34.37 +64 20 04.3 o 130
2007-09-12 20:35:15 C 20 55 34.98 +64 19 49.9 o 130
2007-09-12 20:36:23 C 20 55 35.37 +64 19 40.6 o 130
2007-09-13 19:20:08 C 21 04 00.10 +61 00 52.0 o 151
2007-09-13 19:20:48 C 21 04 00.32 +61 00 46.0 o 151
2007-09-13 19:21:29 C 21 04 00.54 +61 00 40.0 o 151
2007-09-13 19:22:09 C 21 04 00.75 +61 00 33.8 o 151
2007-09-13 19:22:49 C 21 04 00.95 +61 00 27.8 o 151
2007-09-13 19:23:30 C 21 04 01.17 +61 00 21.7 o 151
2007-09-13 19:24:10 C 21 04 01.39 +61 00 15.6 o 151
2007-09-13 20:11:35 C 21 04 16.19 +60 53 06.2 o 240
2007-09-13 20:17:20 C 21 04 18.04 +60 52 14.5 o 240
2007-09-13 20:18:10 C 21 04 18.27 +60 52 06.8 o 240
2007-09-13 20:18:59 C 21 04 18.52 +60 51 59.7 o 240
2007-09-13 20:19:48 C 21 04 18.79 +60 51 52.2 o 240
2007-09-13 20:21:27 C 21 04 19.28 +60 51 37.2 o 240
2007-09-13 20:22:17 C 21 04 19.54 +60 51 29.3 o 240
2007-09-13 20:23:06 C 21 04 19.80 +60 51 22.2 o 240
2007-09-13 20:23:55 C 21 04 20.04 +60 51 14.5 o 240
2007-09-15 18:40:42 C 21 18 01.93 +53 21 06.3 o 151
2007-09-15 18:41:17 C 21 18 02.08 +53 21 00.5 o 151
2007-09-15 18:41:53 C 21 18 02.23 +53 20 54.7 o 151
2007-09-15 18:42:28 C 21 18 02.34 +53 20 48.3 o 151
2007-09-15 18:43:04 C 21 18 02.48 +53 20 42.0 o 151
2007-09-15 18:43:39 C 21 18 02.62 +53 20 36.0 o 151
2007-09-15 18:44:15 C 21 18 02.73 +53 20 29.9 o 151
2007-09-16 18:26:11 C 21 23 45.93 +49 09 36.0 o 151
2007-09-16 18:26:47 C 21 23 46.08 +49 09 29.9 o 151
2007-09-16 18:27:23 C 21 23 46.23 +49 09 23.9 o 151
2007-09-16 18:27:58 C 21 23 46.33 +49 09 17.2 o 151
2007-09-16 18:28:34 C 21 23 46.45 +49 09 10.9 o 151
2007-09-16 18:29:09 C 21 23 46.58 +49 09 04.5 o 151
2007-09-16 18:29:45 C 21 23 46.72 +49 08 58.1 o 151
2007-09-17 06:23:58 C 21 26 16.72 +46 58 52.5 r H45
2007-09-17 06:25:07 C 21 26 16.98 +46 58 39.7 r H45