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
2007-09-17 06:27:05 C 21 26 17.34 +46 58 17.8 r H45
2007-09-17 06:28:32 C 21 26 17.61 +46 58 01.5 r H45
2007-09-17 06:29:13 C 21 26 17.75 +46 57 53.4 r H45
2007-09-17 06:30:24 C 21 26 17.98 +46 57 40.6 r H45
2007-09-17 06:31:15 C 21 26 18.14 +46 57 31.0 r H45
2007-09-19 06:43:13 C 21 35 30.43 +37 48 53.4 r H45
2007-09-19 06:43:57 C 21 35 30.50 +37 48 45.0 r H45
2007-09-19 06:45:16 C 21 35 30.73 +37 48 30.1 r H45
2007-09-19 06:46:35 C 21 35 30.88 +37 48 14.1 r H45
2007-09-19 06:47:21 C 21 35 30.99 +37 48 05.6 r H45
2007-09-19 06:49:01 C 21 35 31.25 +37 47 46.0 r H45
2007-09-19 06:49:58 C 21 35 31.39 +37 47 34.7 r H45
2007-09-19 06:51:16 C 21 35 31.59 +37 47 19.3 r H45
2007-09-19 18:14:32 C 21 37 32.45 +35 34 42.5 o 151
2007-09-19 18:15:33 C 21 37 32.59 +35 34 30.9 o 151
2007-09-19 18:16:34 C 21 37 32.73 +35 34 19.3 o 151
2007-09-19 20:16:55 C 21 37 50.24 +35 11 09.1 c A53
2007-09-19 20:18:08 C 21 37 50.42 +35 10 55.0 c A53
2007-09-19 20:19:21 C 21 37 50.58 +35 10 41.0 c A53
2007-09-19 20:22:42 C 21 37 51.05 +35 10 02.1 c A53
2007-09-19 20:25:08 C 21 37 51.40 +35 09 33.9 c A53
2007-09-20 02:51:20 C 21 38 53.38 +33 54 42.0 r H51
2007-09-20 02:53:45 C 21 38 53.72 +33 54 13.2 r H51
2007-09-20 02:56:04 C 21 38 54.03 +33 53 47.2 r H51
2007-09-20 02:58:23 C 21 38 54.33 +33 53 19.9 r H51
2007-09-20 03:00:42 C 21 38 54.70 +33 52 51.1 r H51
2007-09-20 06:12:50 C 21 39 21.09 +33 15 41.1 r H45
2007-09-20 06:13:33 C 21 39 21.19 +33 15 32.6 r H45
2007-09-20 06:14:36 C 21 39 21.33 +33 15 20.7 r H45
2007-09-20 06:15:19 C 21 39 21.43 +33 15 12.3 r H45
2007-09-20 06:16:11 C 21 39 21.55 +33 15 01.8 r H45
2007-09-20 06:16:58 C 21 39 21.66 +33 14 52.7 r H45
2007-09-20 06:17:53 C 21 39 21.79 +33 14 42.0 r H45
2007-09-20 11:55:46 C 21 40 17.51 +32 09 20.7 r 379
2007-09-20 12:06:06 C 21 40 18.89 +32 07 21.3 r 379
2007-09-20 12:07:42 C 21 40 19.10 +32 07 02.9 r 379
2007-09-20 12:10:54 C 21 40 19.53 +32 06 26.2 r 379
2007-09-20 12:12:29 C 21 40 19.75 +32 06 07.2 r 379
2007-09-20 18:12:25 C 21 41 16.16 +30 56 06.7 o 151
2007-09-20 18:12:55 C 21 41 16.24 +30 56 00.8 o 151
2007-09-20 18:13:26 C 21 41 16.31 +30 55 54.8 o 151
2007-09-20 18:13:57 C 21 41 16.39 +30 55 49.2 o 151
2007-09-20 18:14:27 C 21 41 16.46 +30 55 43.6 o 151
2007-09-20 18:14:58 C 21 41 16.53 +30 55 37.6 o 151
2007-09-20 18:15:28 C 21 41 16.60 +30 55 31.6 o 151
2007-09-20 18:36:01 C 21 41 18.99 +30 51 32.5 r 113
2007-09-20 18:36:38 C 21 41 19.07 +30 51 25.4 r 113
2007-09-20 18:37:15 C 21 41 19.13 +30 51 18.2 r 113
2007-09-20 18:37:53 C 21 41 19.24 +30 51 11.3 r 113
2007-09-20 18:38:28 C 21 41 19.31 +30 51 04.2 r 113