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
2019-12-03 07:33:23 C 23 30 21.02 +41 17 09.7 V T05
2019-12-03 07:38:41 C 23 30 21.80 +41 17 02.3 V T05
2019-12-03 07:46:55 C 23 30 23.03 +41 16 50.8 V T05
2019-12-03 08:01:11 C 23 30 25.12 +41 16 30.6 V T05
2019-12-07 07:12:57 C 23 44 10.48 +39 10 10.7 V T05
2019-12-07 07:17:36 C 23 44 11.14 +39 10 05.2 V T05
2019-12-07 07:26:19 C 23 44 12.28 +39 09 54.1 V T05
2019-12-07 07:40:56 C 23 44 14.28 +39 09 35.2 V T05
2019-12-07 08:03:31 C 23 44 17.356 +39 09 05.87 U F52
2019-12-07 08:18:52 C 23 44 19.442 +39 08 45.92 U F52
2019-12-07 08:34:15 C 23 44 21.532 +39 08 25.94 U F52
2019-12-08 07:52:49 C 23 47 33.83 +38 39 04.4 V T08
2019-12-08 07:56:57 C 23 47 34.36 +38 38 59.5 V T08
2019-12-08 08:04:48 C 23 47 35.41 +38 38 49.1 V T08
2019-12-08 08:32:48 C 23 47 39.19 +38 38 13.5 V T08
2019-12-09 09:06:28 C 23 50 57.79 +38 07 55.9 V T08
2019-12-09 09:18:48 C 23 50 59.41 +38 07 40.7 V T08
2019-12-09 09:24:15 C 23 51 00.15 +38 07 34.3 V T08
2019-12-09 09:39:13 C 23 51 02.10 +38 07 15.1 V T08
2019-12-10 20:24:32 C 23 55 37.45 +37 25 34.5 V 160
2019-12-10 20:27:34 C 23 55 37.84 +37 25 30.9 V 160
2019-12-10 20:30:26 C 23 55 38.22 +37 25 27.3 V 160
2019-12-11 23:30:23 C 23 59 07.46 +36 54 03.5 q I15
2019-12-11 23:32:58 C 23 59 07.76 +36 54 00.6 q I15
2019-12-11 23:35:32 C 23 59 08.12 +36 53 57.8 q I15
2019-12-12 06:51:38 C 00 00 03.28 +36 45 41.9 V T08
2019-12-12 07:00:51 C 00 00 04.42 +36 45 31.4 V T08
2019-12-12 07:08:40 C 00 00 05.43 +36 45 22.7 V T08
2019-12-12 07:24:37 C 00 00 07.36 +36 45 04.2 V T08
2019-12-13 00:40:58 C 00 02 18.69 +36 25 30.7 u H21
2019-12-13 00:42:56 C 00 02 18.92 +36 25 28.3 u H21
2019-12-13 00:46:50 C 00 02 19.40 +36 25 23.9 u H21
2019-12-13 00:48:47 C 00 02 19.65 +36 25 21.8 u H21
2019-12-13 00:51:02 C 00 02 19.94 +36 25 19.4 u H21
2019-12-13 06:33:18 C 00 03 02.52 +36 19 01.7 V T08
2019-12-13 06:34:00 C 00 03 02.66 +36 18 59.0 V T08
2019-12-13 06:42:00 C 00 03 03.61 +36 18 50.0 V T08
2019-12-13 06:42:42 C 00 03 03.67 +36 18 49.2 V T08
2019-12-13 06:58:13 C 00 03 05.60 +36 18 32.0 V T08
2019-12-13 06:58:53 C 00 03 05.68 +36 18 31.0 V T08
2019-12-15 03:18:57 C 00 08 33.62 +35 30 13.8 V 703
2019-12-15 03:26:29 C 00 08 34.53 +35 30 04.9 V 703
2019-12-15 03:34:00 C 00 08 35.39 +35 29 56.9 V 703
2019-12-15 03:41:32 C 00 08 36.33 +35 29 49.2 V 703
2019-12-19 02:04:24 C 00 19 45.47 +33 54 17.6 V 703
2019-12-19 02:12:45 C 00 19 46.45 +33 54 09.8 V 703
2019-12-19 02:20:41 C 00 19 47.41 +33 54 02.2 V 703
2019-12-19 02:28:29 C 00 19 48.24 +33 53 54.6 V 703
2019-12-19 07:32:50 S 00 20 23.07 +33 49 00.3 L C51
2019-12-19 10:41:08 S 00 20 44.77 +33 46 01.2 L C51