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
2015-11-08 23:34:37 C 21 38 58.48 +57 59 20.7 u H21
2015-11-08 23:36:38 C 21 38 59.09 +57 59 17.4 u H21
2015-11-08 23:38:38 C 21 38 59.64 +57 59 14.4 u H21
2015-11-08 23:40:39 C 21 39 00.24 +57 59 11.2 u H21
2015-11-08 23:42:40 C 21 39 00.83 +57 59 08.0 u H21
2015-11-08 23:44:41 C 21 39 01.41 +57 59 04.7 u H21
2015-11-08 23:46:41 C 21 39 01.99 +57 59 01.5 u H21
2015-11-08 23:48:41 C 21 39 02.59 +57 58 58.3 u H21
2015-11-08 23:50:41 C 21 39 03.13 +57 58 55.3 u H21
2015-11-08 23:52:41 C 21 39 03.74 +57 58 52.1 u H21
2015-11-08 23:54:41 C 21 39 04.31 +57 58 49.0 u H21
2015-11-08 23:56:41 C 21 39 04.87 +57 58 45.6 u H21
2015-11-08 23:58:41 C 21 39 05.44 +57 58 42.5 u H21
2015-11-09 00:00:41 C 21 39 06.02 +57 58 39.3 u H21
2015-11-09 01:15:27 C 21 39 27.65 +57 56 41.1 q H45
2015-11-09 01:21:39 C 21 39 29.41 +57 56 30.9 q H45
2015-11-09 01:27:57 C 21 39 31.22 +57 56 20.8 q H45
2015-11-09 01:29:29 C 21 39 31.67 +57 56 18.4 q H45
2015-11-09 01:30:29 C 21 39 31.95 +57 56 16.8 q H45
2015-11-09 01:31:47 C 21 39 32.32 +57 56 14.7 q H45
2015-11-09 18:57:35 C 21 44 36.11 +57 28 10.2 c A24
2015-11-09 18:58:38 C 21 44 36.40 +57 28 08.6 c A24
2015-11-09 19:59:13 C 21 44 53.35 +57 26 28.9 c A24
2015-11-09 20:00:15 C 21 44 53.67 +57 26 27.3 c A24
2015-11-09 23:49:41 C 21 46 00.10 +57 20 18.0 u H21
2015-11-09 23:51:41 C 21 46 00.67 +57 20 14.8 u H21
2015-11-09 23:53:42 C 21 46 01.24 +57 20 11.5 u H21
2015-11-09 23:55:42 C 21 46 01.76 +57 20 08.5 u H21
2015-11-09 23:57:42 C 21 46 02.35 +57 20 05.0 u H21
2015-11-09 23:59:43 C 21 46 02.90 +57 20 01.9 u H21
2015-11-10 00:01:43 C 21 46 03.46 +57 19 58.7 u H21
2015-11-10 00:03:44 C 21 46 04.01 +57 19 55.4 u H21
2015-11-10 00:05:44 C 21 46 04.58 +57 19 52.0 u H21
2015-11-10 00:07:45 C 21 46 05.14 +57 19 48.9 u H21
2015-11-10 00:09:45 C 21 46 05.70 +57 19 45.7 u H21
2015-11-10 00:11:45 C 21 46 06.27 +57 19 42.4 u H21
2015-11-10 00:13:46 C 21 46 06.79 +57 19 39.0 u H21
2015-11-10 00:15:46 C 21 46 07.36 +57 19 35.7 u H21
2015-11-10 00:17:22 C 21 46 07.81 +57 19 33.2 u H21
2015-11-10 18:25:21 C 21 51 13.00 +56 49 50.5 c A24
2015-11-10 18:26:23 C 21 51 13.28 +56 49 48.9 c A24
2015-11-10 19:27:08 C 21 51 29.71 +56 48 08.2 c A24
2015-11-10 19:28:11 C 21 51 30.00 +56 48 06.3 c A24
2015-11-11 19:07:35 C 21 57 55.81 +56 08 51.0 c A24
2015-11-11 19:08:36 C 21 57 56.06 +56 08 49.1 c A24
2015-11-11 20:09:26 C 21 58 11.93 +56 07 06.9 c A24
2015-11-11 20:10:28 C 21 58 12.25 +56 07 05.2 c A24
2015-11-15 18:54:02 C 22 21 48.38 +53 25 58.0 c A24
2015-11-15 18:55:04 C 22 21 48.60 +53 25 56.2 c A24
2015-11-15 19:55:53 C 22 22 02.55 +53 24 10.8 c A24