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
2019-12-19 21:40:32 S 00 21 59.95 +33 35 36.3 L C51
2019-12-20 02:23:06 S 00 22 32.00 +33 31 10.9 L C51
2019-12-20 05:31:24 S 00 22 53.38 +33 28 15.7 L C51
2019-12-20 07:21:06 C 00 23 05.56 +33 26 37.1 V T08
2019-12-20 07:28:05 C 00 23 06.33 +33 26 30.4 V T08
2019-12-20 07:35:47 C 00 23 07.18 +33 26 22.8 V T08
2019-12-20 07:52:18 C 00 23 09.00 +33 26 07.3 V T08
2019-12-22 02:11:16 C 00 27 53.85 +32 47 40.5 V 703
2019-12-22 02:19:42 C 00 27 54.75 +32 47 34.2 V 703
2019-12-22 02:27:40 C 00 27 55.60 +32 47 25.9 V 703
2019-12-22 02:35:26 C 00 27 56.46 +32 47 19.1 V 703
2019-12-23 19:49:23 C 00 32 27.78 +32 11 37.3 V 160
2019-12-23 19:52:00 C 00 32 28.17 +32 11 35.1 V 160
2019-12-23 19:54:38 C 00 32 28.38 +32 11 33.5 V 160
2020-01-03 04:38:07 C 00 58 12.21 +29 10 35.5 V 703
2020-01-03 04:39:23 C 00 58 12.32 +29 10 34.5 V 703
2020-01-03 04:46:05 C 00 58 13.00 +29 10 30.7 V 703
2020-01-03 04:47:21 C 00 58 13.24 +29 10 29.7 V 703
2020-01-03 04:54:04 C 00 58 13.83 +29 10 25.2 V 703
2020-01-03 04:55:19 C 00 58 14.00 +29 10 24.3 V 703
2020-01-03 05:02:03 C 00 58 14.52 +29 10 20.7 V 703
2020-01-03 05:03:18 C 00 58 14.82 +29 10 20.0 V 703
2020-01-14 02:46:56 C 01 23 13.62 +26 53 51.4 V 703
2020-01-14 02:54:32 C 01 23 14.29 +26 53 48.2 V 703
2020-01-14 03:02:07 C 01 23 14.86 +26 53 46.2 V 703
2020-01-14 03:09:43 C 01 23 15.61 +26 53 41.5 V 703
2020-01-18 03:34:46 C 01 32 05.08 +26 14 39.6 V 703
2020-01-18 03:43:02 C 01 32 05.82 +26 14 36.6 V 703
2020-01-18 03:51:18 C 01 32 06.59 +26 14 34.1 V 703
2020-01-18 03:59:34 C 01 32 07.30 +26 14 29.5 V 703
2020-01-19 07:06:51 C 01 34 34.64 +26 04 29.7 V T05
2020-01-19 07:11:35 C 01 34 35.05 +26 04 28.1 V T05
2020-01-19 07:21:04 C 01 34 35.84 +26 04 24.9 V T05
2020-01-19 07:39:54 C 01 34 37.57 +26 04 17.5 V T05
2020-01-23 03:12:36 C 01 42 50.21 +25 33 13.8 V 703
2020-01-23 03:20:47 C 01 42 50.88 +25 33 11.8 V 703
2020-01-23 03:28:57 C 01 42 51.68 +25 33 08.6 V 703
2020-01-23 03:37:07 C 01 42 52.34 +25 33 07.0 V 703
2020-01-24 01:57:47 C 01 44 51.74 +25 26 10.8 V G96
2020-01-24 02:05:59 C 01 44 52.45 +25 26 08.2 V G96
2020-01-24 02:14:09 C 01 44 53.16 +25 26 05.8 V G96
2020-01-24 02:22:18 C 01 44 53.88 +25 26 03.3 V G96
2020-01-26 02:41:58 C 01 49 10.60 +25 11 49.4 U I41
2020-01-26 02:58:33 C 01 49 12.03 +25 11 44.6 U I41
2020-01-26 03:39:10 C 01 49 15.56 +25 11 33.2 U I41
2020-01-26 03:40:29 C 01 49 15.70 +25 11 32.9 V 703
2020-01-26 03:48:46 C 01 49 16.35 +25 11 30.3 V 703
2020-01-26 03:57:04 C 01 49 17.01 +25 11 27.7 V 703
2020-01-26 04:05:19 C 01 49 17.76 +25 11 24.6 V 703
2020-01-26 04:10:37 C 01 49 18.30 +25 11 24.1 U I41