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
2016-09-08 20:05:48 C 18 22 05.62 +67 35 21.1 q Z52
2016-09-08 20:36:48 C 18 22 31.89 +67 32 49.9 q Z52
2016-09-09 03:36:31 C 18 28 32.28 +66 58 37.9 q 703
2016-09-09 03:49:39 C 18 28 42.92 +66 57 31.2 q 703
2016-09-09 03:56:13 C 18 28 48.28 +66 56 57.6 q 703
2016-09-11 04:46:55 C 19 06 18.30 +62 11 07.8 q H45
2016-09-11 04:48:15 C 19 06 19.19 +62 10 59.0 q H45
2016-09-11 04:49:16 C 19 06 19.92 +62 10 51.9 q H45
2016-09-11 04:51:01 C 19 06 21.03 +62 10 40.4 q H45
2016-09-11 04:52:04 C 19 06 21.76 +62 10 32.9 q H45
2016-09-11 04:53:03 C 19 06 22.41 +62 10 26.3 q H45
2016-09-12 06:13:30 C 19 22 58.88 +59 12 12.7 o 291
2016-09-12 06:14:44 C 19 22 59.60 +59 12 03.4 o 291
2016-09-12 06:15:59 C 19 23 00.35 +59 11 53.9 o 291
2016-09-13 03:23:44 C 19 35 32.62 +56 28 11.9 q H45
2016-09-13 03:25:31 C 19 35 33.56 +56 27 57.6 q H45
2016-09-13 03:26:27 C 19 35 34.07 +56 27 50.1 q H45
2016-09-13 03:28:14 C 19 35 35.04 +56 27 35.6 q H45
2016-09-13 03:29:25 C 19 35 35.62 +56 27 25.9 q H45
2016-09-13 03:30:23 C 19 35 36.18 +56 27 17.8 q H45
2016-09-13 19:53:00 C 19 44 31.95 +54 11 02.6 v K17
2016-09-13 19:58:01 C 19 44 34.45 +54 10 19.7 v K17
2016-09-13 20:06:16 C 19 44 38.57 +54 09 09.1 v K17
2016-09-13 20:33:48 C 19 44 50.90 +54 05 08.3 L04
2016-09-13 20:37:02 C 19 44 52.54 +54 04 40.3 L04
2016-09-13 20:41:08 C 19 44 54.59 +54 04 04.9 L04
2016-09-14 20:34:28 C 19 56 45.83 +50 31 35.8 q C03
2016-09-14 20:35:28 C 19 56 46.19 +50 31 26.5 q C03
2016-09-14 20:36:24 C 19 56 46.67 +50 31 16.6 q C03
2016-09-14 20:55:34 C 19 56 55.47 +50 28 20.6 q C03
2016-09-14 20:56:27 C 19 56 55.73 +50 28 12.5 q C03
2016-09-16 22:33:36 C 20 17 54.43 +42 25 02.0 q 006
2016-09-16 22:35:51 C 20 17 55.16 +42 24 39.7 q 006
2016-09-16 22:39:36 C 20 17 56.57 +42 24 01.4 q 006
2016-09-16 22:45:05 C 20 17 58.43 +42 23 04.8 q 006
2016-09-16 22:48:50 C 20 17 59.86 +42 22 26.2 q 006
2016-09-18 21:58:49 C 20 34 21.47 +34 08 05.3 q 006
2016-09-18 21:59:49 C 20 34 21.80 +34 07 54.6 q 006
2016-09-18 22:01:49 C 20 34 22.40 +34 07 34.0 q 006
2016-09-18 22:03:49 C 20 34 23.03 +34 07 12.3 q 006
2016-09-18 22:04:49 C 20 34 23.34 +34 07 01.1 q 006
2016-09-19 20:45:01 C 20 41 16.28 +30 05 05.9 q 006
2016-09-19 20:48:01 C 20 41 17.09 +30 04 33.4 q 006
2016-09-19 20:50:31 C 20 41 17.79 +30 04 06.5 q 006
2016-09-19 20:52:01 C 20 41 18.18 +30 03 51.0 q 006
2016-09-19 20:54:01 C 20 41 18.74 +30 03 29.6 q 006
2016-09-19 21:11:49 C 20 41 23.12 +30 00 14.8 q 203
2016-09-19 21:43:10 C 20 41 31.68 +29 54 39.5 q 203
2016-09-21 21:59:51 C 20 54 21.70 +21 27 51.4 q 006
2016-09-21 22:01:51 C 20 54 22.16 +21 27 31.0 q 006