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
2025-02-21 00:29:29 C 01 39 58.217 -08 25 36.35 V W84
2025-09-02 05:55:00 C 15 22 48.245 +64 09 50.47 V T05
2025-09-02 06:00:57 C 15 22 52.070 +64 09 45.94 V T05
2025-09-02 06:11:41 C 15 22 59.006 +64 09 38.02 V T05
2025-09-02 06:27:43 C 15 23 09.274 +64 09 21.53 V T05
2025-09-06 06:11:26 C 16 29 48.950 +61 41 29.22 V T08
2025-09-06 06:15:25 C 16 29 51.727 +61 41 18.82 V T08
2025-09-06 06:25:25 C 16 29 58.766 +61 40 53.44 V T08
2025-09-06 06:44:47 C 16 30 12.322 +61 40 04.30 V T08
2025-09-06 21:08:39 B 16 40 33.127 +61 02 18.82 W Z80
2025-09-06 21:17:48 B 16 40 39.682 +61 01 53.04 W Z80
2025-09-06 21:26:52 B 16 40 46.039 +61 01 27.23 W Z80
2025-09-08 06:34:01 C 17 04 23.090 +59 18 09.94 V T05
2025-09-08 06:41:20 C 17 04 28.013 +59 17 43.51 V T05
2025-09-08 06:45:16 C 17 04 30.698 +59 17 28.25 V T05
2025-09-08 07:00:29 C 17 04 41.218 +59 16 33.89 V T05
2025-09-08 22:06:53 B 17 15 18.094 +58 19 56.96 W Z80
2025-09-08 22:18:55 B 17 15 26.419 +58 19 08.33 W Z80
2025-09-08 22:30:59 B 17 15 34.706 +58 18 19.62 W Z80
2025-09-09 06:39:55 C 17 21 14.710 +57 46 15.17 V T08
2025-09-09 06:43:57 C 17 21 17.352 +57 45 58.54 V T08
2025-09-09 06:52:03 C 17 21 22.783 +57 45 24.05 V T08
2025-09-09 07:06:00 C 17 21 32.184 +57 44 25.26 V T08
2025-09-09 23:26:11 C 17 32 41.839 +56 33 20.52 V R17
2025-09-09 23:54:49 C 17 33 00.986 +56 31 05.84 V R17
2025-09-10 00:17:14 C 17 33 15.876 +56 29 20.40 V R17
2025-09-10 00:40:21 C 17 33 31.457 +56 27 30.56 V R17
2025-09-10 04:50:00 C 17 36 21.380 +56 08 32.35 V G96
2025-09-10 04:58:11 C 17 36 26.744 +56 07 53.11 V G96
2025-09-10 05:06:22 C 17 36 32.134 +56 07 13.76 V G96
2025-09-10 05:14:32 C 17 36 37.480 +56 06 34.42 V G96
2025-09-10 05:18:48 C 17 36 40.295 +56 06 13.79 V G96
2025-09-10 05:27:00 C 17 36 45.662 +56 05 34.40 V G96
2025-09-10 05:35:10 C 17 36 51.059 +56 04 54.70 V G96
2025-09-10 05:43:20 C 17 36 56.455 +56 04 15.17 V G96
2025-09-10 05:49:12 C 17 37 00.296 +56 03 46.62 V 703
2025-09-10 05:52:11 C 17 37 02.248 +56 03 32.98 V 703
2025-09-10 05:55:10 C 17 37 04.231 +56 03 17.71 V 703
2025-09-10 05:58:09 C 17 37 06.244 +56 03 04.00 V 703
2025-09-10 22:57:05 B 17 48 22.598 +54 39 05.04 W Z80
2025-09-10 23:06:55 B 17 48 29.047 +54 38 13.45 W Z80
2025-09-10 23:17:01 B 17 48 35.508 +54 37 19.06 W Z80
2025-09-11 07:05:28 C 17 53 40.116 +53 56 56.04 V T08
2025-09-11 07:09:25 C 17 53 42.547 +53 56 34.48 V T08
2025-09-11 07:18:06 C 17 53 47.974 +53 55 46.96 V T08
2025-09-11 07:41:32 C 17 54 02.597 +53 53 38.33 V T08
2025-09-11 14:40:40 C 17 58 31.915 +53 15 12.06 W O18
2025-09-11 14:57:47 C 17 58 42.504 +53 13 34.92 W O18
2025-09-11 19:23:59 B 18 01 30.77 +52 48 24.8 X L76
2025-09-11 19:29:31 B 18 01 34.18 +52 47 52.8 X L76