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
2007-09-29 18:44:44 C 22 04 48.73 -03 23 11.9 r 084
2007-09-29 21:15:56 C 22 05 00.01 -03 40 15.1 r 084
2007-09-29 21:17:40 C 22 05 00.15 -03 40 26.7 r 084
2007-09-29 21:18:31 C 22 05 00.21 -03 40 32.8 r 084
2007-10-02 20:37:31 C 22 10 36.12 -10 42 49.5 c A24
2007-10-02 20:38:56 C 22 10 36.21 -10 42 56.7 c A24
2007-10-04 04:04:32 C 22 12 53.85 -13 16 03.5 r 703
2007-10-04 04:13:54 C 22 12 54.43 -13 16 46.5 r 703
2007-10-04 04:23:18 C 22 12 54.97 -13 17 30.0 r 703
2007-10-04 04:32:37 C 22 12 55.51 -13 18 12.5 r 703
2007-10-06 05:45:44 C 22 16 20.28 -16 44 17.3 w 699
2007-10-06 06:22:33 C 22 16 22.42 -16 46 36.8 w 699
2007-10-06 06:59:22 C 22 16 24.54 -16 48 54.9 w 699
2007-10-07 03:36:49 C 22 17 49.77 -18 04 18.6 17.9 c 704
2007-10-07 03:52:53 C 22 17 50.69 -18 05 15.7 18.0 c 704
2007-10-07 04:08:55 C 22 17 51.60 -18 06 11.9 17.9 c 704
2007-10-07 04:25:01 C 22 17 52.49 -18 07 08.2 18.1 c 704
2007-10-07 04:41:05 C 22 17 53.40 -18 08 04.0 18.2 c 704
2007-10-10 03:50:30 C 22 22 32.16 -21 47 15.7 r 703
2007-10-10 03:56:07 C 22 22 32.48 -21 47 30.6 r 703
2007-10-10 04:01:44 C 22 22 32.77 -21 47 45.9 r 703
2007-10-10 04:07:20 C 22 22 33.09 -21 48 01.2 r 703
2007-10-11 03:21:57 C 22 24 01.90 -22 48 05.6 r 703
2007-10-11 03:32:08 C 22 24 02.48 -22 48 30.9 r 703
2007-10-11 03:42:14 C 22 24 03.02 -22 48 55.6 r 703
2007-10-11 03:52:25 C 22 24 03.60 -22 49 21.0 r 703
2008-11-03 16:32:46 C 04 09 13.71 -42 12 03.7 r E12
2008-11-03 16:49:30 C 04 09 11.66 -42 12 35.1 r E12
2008-11-03 17:06:16 C 04 09 09.61 -42 13 06.6 r E12
2008-11-03 17:23:00 C 04 09 07.63 -42 13 37.5 r E12
2016-09-01 21:34:43 C 15 31 10.88 +74 03 49.9 q G40
2016-09-01 21:52:22 C 15 31 28.39 +74 03 43.1 q G40
2016-09-01 22:13:40 C 15 31 49.53 +74 03 34.5 q G40
2016-09-03 21:03:46 C 16 21 16.89 +73 28 58.6 q G40
2016-09-03 21:05:02 C 16 21 18.15 +73 28 56.8 q G40
2016-09-03 21:32:10 C 16 21 46.80 +73 28 18.6 q G40
2016-09-04 03:13:48 C 16 27 57.88 +73 20 33.5 q H06
2016-09-04 03:22:01 C 16 28 06.57 +73 20 20.7 q H06
2016-09-04 03:25:56 C 16 28 10.69 +73 20 14.7 q H06
2016-09-04 03:31:00 C 16 28 16.06 +73 20 06.8 q H06
2016-09-04 03:34:48 C 16 28 19.92 +73 20 00.9 q H06
2016-09-07 17:14:52 S 17 57 38.230 +69 32 34.30 L C51
2016-09-07 20:02:54 C 18 00 14.59 +69 21 37.9 q Z52
2016-09-07 20:23:33 S 18 00 37.066 +69 19 59.81 L C51
2016-09-07 20:31:06 C 18 00 40.51 +69 19 42.4 q Z52
2016-09-07 23:32:03 S 18 03 34.207 +69 07 08.00 L C51
2016-09-08 01:06:07 S 18 05 01.846 +69 00 36.97 L C51
2016-09-08 01:06:18 S 18 05 02.014 +69 00 34.92 L C51
2016-09-08 04:14:48 S 18 07 56.455 +68 47 15.50 L C51
2016-09-08 19:39:03 C 18 21 43.03 +67 37 29.9 q Z52