137084 (1998 XS16)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4965944426 ± 2.25e-08
Semi-major axis (a)1.2122391473 AU ± 5.56e-10
Inclination (i)26.55930199° ± 2.65e-06
Long. of Asc. Node (Ω)272.97685443° ± 3.59e-06
Arg. of Perihelion (ω)358.34109094° ± 4.01e-06
Mean Anomaly (M)253.89618035° ± 3.80e-06
Mean Motion (n)0.7384648343°/day ± 5.08e-10
Perihelion dist (q)0.61024792 AU ± 2.73e-08
Aphelion dist (Q)1.81423037 AU ± 2.73e-08
Orbital Period1.33469630 yr ± 9.18e-10
Physical Parameters
H (abs. magnitude)16.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.360″
Uncertainty0
Orbit TypeApollo
MOID0.407364 AU
Observations Used2535
Gaia Obs Used55
Oppositions6
Arc Total1994-2016
First Observation Used1994-12-03
Last Observation Used2026-01-13
Observations (3383)
Date Type RA Dec Mag Band Observatory
1994-12-03 09:08:18 C 07 43 31.80 +22 10 06.4 a 691
1994-12-03 09:44:21 C 07 43 29.43 +22 09 50.3 a 691
1994-12-03 10:20:39 C 07 43 27.04 +22 09 34.9 a 691
1998-12-15 11:00:43 C 07 17 01.95 +20 22 25.0 18.1 a 704
1998-12-15 11:21:57 C 07 16 59.81 +20 22 13.6 19.0 a 704
1998-12-15 11:43:15 C 07 16 57.44 +20 22 00.3 19.3 a 704
1998-12-15 12:04:30 C 07 16 55.68 +20 21 51.5 19.1 a 704
1998-12-15 12:25:48 C 07 16 53.33 +20 21 38.3 19.7 a 704
1998-12-17 04:05:12 C 07 12 56.16 +20 00 34.2 046
1998-12-17 04:06:48 C 07 12 56.01 +20 00 33.1 046
1998-12-17 04:08:43 C 07 12 55.82 +20 00 31.8 046
1998-12-17 04:10:56 C 07 12 55.62 +20 00 31.1 046
1998-12-17 04:14:47 C 07 12 55.19 +20 00 29.0 046
1998-12-17 07:02:42 C 07 12 38.74 +19 59 00.7 18.2 a 704
1998-12-17 08:09:29 C 07 12 31.88 +19 58 26.3 18.5 a 704
1998-12-17 08:42:48 C 07 12 28.34 +19 58 08.4 18.3 a 704
1998-12-17 09:15:58 C 07 12 24.91 +19 57 50.5 18.0 a 704
1998-12-17 09:46:39 C 07 12 21.63 +19 57 33.8 18.3 a 704
1998-12-17 10:19:18 C 07 12 18.29 +19 57 15.4 19.2 a 704
1998-12-17 10:52:01 C 07 12 14.83 +19 56 57.0 18.7 a 704
1998-12-17 11:24:48 C 07 12 11.38 +19 56 39.5 19.0 a 704
1998-12-17 11:57:28 C 07 12 07.94 +19 56 21.6 18.7 a 704
1998-12-17 12:59:24 C 07 12 02.55 +19 55 48.3 z 402
1998-12-17 13:01:24 C 07 12 02.37 +19 55 47.1 z 402
1998-12-17 13:03:24 C 07 12 02.16 +19 55 46.2 z 402
1998-12-17 13:05:24 C 07 12 01.94 +19 55 44.9 z 402
1998-12-17 20:36:05 C 07 11 15.73 +19 51 39.8 540
1998-12-17 20:43:09 C 07 11 15.06 +19 51 35.1 540
1998-12-17 20:47:51 C 07 11 14.57 +19 51 31.4 540
1998-12-17 21:04:48 C 07 11 12.60 +19 51 22.6 557
1998-12-17 21:09:12 C 07 11 12.17 +19 51 20.8 046
1998-12-17 21:11:20 C 07 11 11.96 +19 51 20.1 046
1998-12-17 21:13:18 C 07 11 11.75 +19 51 18.3 046
1998-12-18 00:52:42 C 07 10 48.67 +19 49 20.8 118
1998-12-18 01:02:08 C 07 10 47.71 +19 49 14.3 118
1998-12-18 01:08:11 C 07 10 47.04 +19 49 11.7 118
1998-12-18 05:31:00 C 07 10 20.32 +19 46 49.0 734
1998-12-18 05:36:41 C 07 10 19.67 +19 46 46.3 734
1998-12-18 05:42:40 C 07 10 19.03 +19 46 42.1 734
1998-12-18 14:39:02 C 07 09 23.06 +19 41 50.2 z 402
1998-12-18 14:41:02 C 07 09 22.82 +19 41 49.1 z 402
1998-12-18 14:43:02 C 07 09 22.63 +19 41 48.1 z 402
1998-12-21 13:36:44 C 07 01 46.58 +19 02 10.9 422
1998-12-21 13:37:42 C 07 01 46.47 +19 02 10.2 422
1998-12-21 13:38:34 C 07 01 46.40 +19 02 09.8 422
1998-12-21 15:22:00 C 07 01 34.93 +19 01 00.1 360
1998-12-21 15:23:49 C 07 01 34.67 +19 01 09.5 b 426
1998-12-21 15:27:00 C 07 01 34.37 +19 00 57.1 360
1998-12-21 15:31:22 C 07 01 33.80 +19 01 05.3 b 426
1998-12-21 15:32:15 C 07 01 33.77 +19 00 54.3 360