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
2015-12-01 23:43:40 C 23 33 18.80 +42 47 26.3 u H21
2015-12-01 23:45:38 C 23 33 19.08 +42 47 23.5 u H21
2015-12-01 23:47:35 C 23 33 19.36 +42 47 20.5 u H21
2015-12-01 23:49:33 C 23 33 19.65 +42 47 17.6 u H21
2015-12-01 23:51:31 C 23 33 19.93 +42 47 14.8 u H21
2015-12-01 23:53:28 C 23 33 20.20 +42 47 11.9 u H21
2015-12-01 23:55:26 C 23 33 20.49 +42 47 08.9 u H21
2015-12-01 23:57:23 C 23 33 20.77 +42 47 06.0 u H21
2015-12-01 23:59:21 C 23 33 21.04 +42 47 03.2 u H21
2015-12-02 00:01:18 C 23 33 21.32 +42 47 00.3 u H21
2015-12-02 00:03:15 C 23 33 21.62 +42 46 57.4 u H21
2015-12-02 00:05:12 C 23 33 21.89 +42 46 54.4 u H21
2015-12-02 00:07:14 C 23 33 22.18 +42 46 51.4 u H21
2015-12-05 04:10:08 C 23 44 11.28 +40 57 22.0 q 703
2015-12-05 04:13:46 C 23 44 11.80 +40 57 16.6 q 703
2015-12-05 04:17:24 C 23 44 12.31 +40 57 11.4 q 703
2015-12-05 04:21:03 C 23 44 12.74 +40 57 06.2 q 703
2015-12-07 02:13:54 C 23 50 25.17 +39 54 17.2 q H45
2015-12-07 02:15:37 C 23 50 25.39 +39 54 15.1 q H45
2015-12-07 02:17:28 C 23 50 25.61 +39 54 11.9 q H45
2015-12-07 02:18:45 C 23 50 25.77 +39 54 10.5 q H45
2015-12-07 02:20:30 C 23 50 26.02 +39 54 08.3 q H45
2015-12-09 05:44:38 C 23 57 07.11 +38 46 42.9 q 703
2015-12-09 05:50:26 C 23 57 07.83 +38 46 35.3 q 703
2015-12-09 05:56:14 C 23 57 08.60 +38 46 27.4 q 703
2015-12-09 06:02:01 C 23 57 09.28 +38 46 19.6 q 703
2015-12-09 06:27:32 C 23 57 12.96 +38 45 52.5 L T05
2015-12-09 06:49:33 C 23 57 15.54 +38 45 22.8 L T05
2015-12-09 07:12:31 C 23 57 18.48 +38 44 53.8 L T05
2015-12-09 07:36:40 C 23 57 21.49 +38 44 22.5 L T05
2015-12-10 01:33:25 C 23 59 38.35 +38 21 35.5 u H21
2015-12-10 01:36:26 C 23 59 38.70 +38 21 31.6 u H21
2015-12-10 01:39:27 C 23 59 39.08 +38 21 27.9 u H21
2015-12-10 01:42:28 C 23 59 39.45 +38 21 24.0 u H21
2015-12-10 01:45:29 C 23 59 39.83 +38 21 20.1 u H21
2015-12-10 01:48:29 C 23 59 40.20 +38 21 16.5 u H21
2015-12-10 01:51:30 C 23 59 40.55 +38 21 12.6 u H21
2015-12-10 01:54:31 C 23 59 40.94 +38 21 08.8 u H21
2015-12-10 01:57:31 C 23 59 41.30 +38 21 04.9 u H21
2015-12-10 02:00:32 C 23 59 41.67 +38 21 01.3 u H21
2015-12-17 19:16:58 C 00 21 41.35 +34 48 52.8 t 130
2015-12-17 19:27:00 C 00 21 42.45 +34 48 42.3 t 130
2015-12-17 19:31:17 C 00 21 42.91 +34 48 38.0 t 130
2015-12-17 19:35:35 C 00 21 43.42 +34 48 33.5 t 130
2015-12-18 05:05:18 C 00 22 47.501 +34 38 51.79 L F51
2015-12-18 05:23:46 C 00 22 49.507 +34 38 32.87 L F51
2015-12-18 05:59:39 C 00 22 53.391 +34 37 55.99 L F51
2015-12-20 00:12:37 C 00 27 33.63 +33 55 41.2 u H21
2015-12-20 00:14:38 C 00 27 33.83 +33 55 39.3 u H21
2015-12-20 00:16:38 C 00 27 34.04 +33 55 37.3 u H21