162116 (1998 SA15)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5585324823 ± 5.66e-08
Semi-major axis (a)1.9157078683 AU ± 5.46e-09
Inclination (i)7.11236065° ± 8.82e-06
Long. of Asc. Node (Ω)114.17344747° ± 1.35e-04
Arg. of Perihelion (ω)331.45136434° ± 1.35e-04
Mean Anomaly (M)56.34144805° ± 1.19e-05
Mean Motion (n)0.3717220740°/day ± 1.59e-09
Perihelion dist (q)0.84572280 AU ± 1.08e-07
Aphelion dist (Q)2.98569294 AU ± 1.09e-07
Orbital Period2.65151400 yr ± 1.13e-08
Physical Parameters
H (abs. magnitude)19.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.421″
Uncertainty0
Orbit TypeApollo
MOID0.047106 AU
Observations Used76
Oppositions16
Arc Total1998-2023
First Observation Used1998-09-21
Last Observation Used2023-04-14
Observations (91)
Date Type RA Dec Mag Band Observatory
1998-09-21 06:25:43 C 23 31 56.08 -28 20 29.9 19.2 a 704
1998-09-21 06:57:51 C 23 31 53.68 -28 21 19.1 19.0 a 704
1998-09-21 07:29:51 C 23 31 51.33 -28 22 09.3 18.9 a 704
1998-09-22 00:06:32 C 23 30 42.37 -28 47 28.9 954
1998-09-22 00:08:26 C 23 30 42.22 -28 47 31.8 954
1998-09-22 00:09:25 C 23 30 42.15 -28 47 33.5 954
1998-09-22 13:10:54 C 23 29 46.41 -29 07 10.9 422
1998-09-22 13:12:02 C 23 29 46.35 -29 07 12.7 422
1998-09-22 13:13:38 C 23 29 46.16 -29 07 15.1 422
1998-09-22 13:16:49 C 23 29 45.95 -29 07 20.3 422
1998-09-23 12:55:13 C 23 28 02.75 -29 43 48.8 b 426
1998-09-23 13:04:07 C 23 28 02.02 -29 44 02.4 b 426
1998-09-23 13:12:46 C 23 28 01.37 -29 44 16.2 b 426
1998-09-24 11:37:52 C 23 26 20.45 -30 19 04.3 b 426
1998-09-24 11:46:45 C 23 26 19.75 -30 19 18.5 b 426
1998-09-24 11:55:34 C 23 26 18.99 -30 19 32.7 b 426
1998-09-25 10:53:21 C 23 24 31.77 -30 55 25.2 422
1998-09-25 10:55:10 C 23 24 31.78 -30 55 28.5 422
1998-09-25 10:56:40 C 23 24 31.62 -30 55 30.4 422
1998-09-25 11:00:30 C 23 24 31.32 -30 55 38.3 422
1998-10-13 12:20:07 C 22 41 35.61 -42 16 04.2 422
1998-10-13 12:22:44 C 22 41 35.32 -42 16 08.4 422
1998-10-25 11:46:12 C 22 02 49.55 -49 24 24.4 b 426
1998-10-25 11:55:31 C 22 02 47.94 -49 24 37.7 b 426
1998-10-25 12:04:20 C 22 02 46.42 -49 24 50.9 b 426
1999-03-14 01:27:08 C 13 59 29.48 +08 17 43.1 104
1999-03-14 01:34:08 C 13 59 29.00 +08 17 47.0 104
1999-03-14 01:41:08 C 13 59 28.48 +08 17 50.4 104
1999-03-14 01:48:08 C 13 59 27.94 +08 17 54.4 104
1999-03-21 03:28:08 C 13 44 58.25 +09 49 25.9 104
1999-03-21 03:35:20 C 13 44 57.73 +09 49 29.0 104
1999-03-21 03:42:20 C 13 44 57.10 +09 49 31.8 104
1999-03-21 03:49:30 C 13 44 56.42 +09 49 35.8 104
2006-08-18 09:45:06 C 01 11 25.98 -06 21 10.6 d 291
2006-08-18 09:55:09 C 01 11 26.74 -06 21 13.7 d 291
2006-08-18 10:05:48 C 01 11 27.54 -06 21 16.8 d 291
2006-09-24 10:44:32 C 03 02 24.93 -18 39 52.7 r 703
2006-09-24 10:52:57 C 03 02 26.80 -18 40 06.0 r 703
2006-09-24 11:01:20 C 03 02 28.64 -18 40 19.4 r 703
2006-09-24 11:09:48 C 03 02 30.55 -18 40 32.7 r 703
2006-09-27 10:31:54 C 03 20 26.19 -20 41 34.9 r 703
2006-09-27 10:45:18 C 03 20 29.68 -20 41 58.4 r 703
2006-09-27 10:58:40 C 03 20 33.21 -20 42 22.1 r 703
2006-09-27 11:12:00 C 03 20 36.78 -20 42 45.1 r 703
2014-09-21 06:13:01 S 05 36 55.20 +02 30 57.4 L C51
2014-09-21 09:22:26 S 05 37 55.93 +02 30 51.1 L C51
2014-09-21 12:31:51 S 05 38 56.80 +02 30 45.0 L C51
2014-09-21 15:41:16 S 05 39 57.82 +02 30 38.1 L C51
2014-09-21 17:16:04 S 05 40 28.28 +02 30 36.2 L C51
2014-09-21 18:50:41 S 05 40 58.846 +02 30 31.18 L C51