IAA RAS IAA Minor Planet Database

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
2019-10-25 23:14:26 s 1 +10707.746 0 +379336.29 790.0 – C57
2019-10-26 02:14:26 S 19 23 28.634 +61 36 15.48 – V C57
2019-10-26 02:44:26 S 19 23 41.398 +61 36 02.88 – V C57
2019-10-26 03:14:26 S 19 23 53.623 +61 35 47.29 – V C57
2019-10-26 04:14:26 S 19 24 19.560 +61 35 23.57 – V C57
2019-10-26 07:44:26 S 19 25 49.810 +61 33 43.88 – V C57
2019-10-26 08:14:26 S 19 26 02.470 +61 33 29.95 – V C57
2019-10-26 10:14:26 S 19 26 53.933 +61 32 36.20 – V C57
2019-10-26 10:14:26 s 1 -12007.731 0 +384097.96 0.0 – C57
2019-10-26 10:44:26 S 19 27 06.533 +61 32 20.72 – V C57
2019-10-26 10:44:26 s 1 -13037.271 0 +384212.84 1870.0 – C57
2019-10-26 11:14:26 S 19 27 18.991 +61 32 06.36 – V C57
2019-10-26 11:14:26 s 1 -14066.364 0 +384318.96 2120.0 – C57
2019-10-26 12:44:26 S 19 27 58.531 +61 31 21.86 – V C57
2019-10-26 12:44:26 s 1 -17150.731 0 +384584.82 3790.0 – C57
2019-10-26 13:14:26 S 19 28 10.639 +61 31 08.15 – V C57
2019-10-26 13:14:26 s 1 -18177.807 0 +384655.96 8240.0 – C57
2019-10-26 15:14:26 S 19 29 02.722 +61 30 08.39 – V C57
2019-10-26 15:14:26 s 1 -22280.266 0 +384853.31 3980.0 – C57
2019-10-26 15:44:26 S 19 29 15.463 +61 29 54.71 – V C57
2019-10-26 15:44:26 s 1 -23304.306 0 +384880.87 2760.0 – C57
2019-10-26 16:14:26 S 19 29 28.070 +61 29 40.38 – V C57
2019-10-26 16:14:26 s 1 -24327.671 0 +384899.74 620.0 – C57
2019-10-26 18:14:26 S 19 30 18.900 +61 28 40.04 – V C57
2019-10-26 18:14:26 s 1 -28413.926 0 +384888.32 4190.0 – C57
2019-10-26 19:14:26 S 19 30 44.117 +61 28 11.21 – V C57
2019-10-26 19:14:26 s 1 -30452.415 0 +384830.56 2240.0 – C57
2019-10-26 21:14:26 S 19 31 36.432 +61 27 09.18 – V C57
2019-10-26 21:14:26 s 1 -34519.211 0 +384611.07 3630.0 – C57
2019-10-27 02:14:26 S 19 33 42.305 +61 24 33.66 – V C57
2019-10-27 02:14:26 s 1 -44618.403 0 +383457.17 9720.0 – C57
2019-10-27 02:44:26 S 19 33 56.244 +61 24 18.90 – V C57
2019-10-27 02:44:26 s 1 -45622.375 0 +383294.29 5310.0 – C57
2019-10-27 03:21:01 C 19 34 54.65 +61 39 26.5 – V 703
2019-10-27 03:28:55 C 19 34 57.82 +61 39 21.6 – V 703
2019-10-27 03:36:50 C 19 35 00.86 +61 39 16.2 – V 703
2019-10-27 03:44:43 C 19 35 04.17 +61 39 11.4 – V 703
2019-10-27 05:14:26 S 19 35 00.367 +61 23 00.13 – V C57
2019-10-27 05:14:26 s 1 -50624.200 0 +382350.54 2960.0 – C57
2019-10-27 05:44:26 S 19 35 12.545 +61 22 46.20 – V C57
2019-10-27 05:44:26 s 1 -51620.799 0 +382135.91 3950.0 – C57
2019-10-27 06:14:26 S 19 35 25.106 +61 22 28.63 – V C57
2019-10-27 06:14:26 s 1 -52616.089 0 +381912.67 3940.0 – C57
2019-10-27 07:44:26 S 19 36 04.224 +61 21 39.85 – V C57
2019-10-27 07:44:26 s 1 -55593.878 0 +381191.18 7150.0 – C57
2019-10-27 08:14:26 S 19 36 16.246 +61 21 23.11 – V C57
2019-10-27 08:14:26 s 1 -56583.703 0 +380933.43 2410.0 – C57
2019-10-27 08:44:26 S 19 36 28.670 +61 21 08.53 – V C57
2019-10-27 08:44:26 s 1 -57572.104 0 +380667.06 6310.0 – C57
2019-10-27 10:44:26 S 19 37 19.620 +61 20 02.72 – V C57