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
2019-09-29 18:14:27 s 1 +12297.748 0 +375431.84 1930.0 – C57
2019-09-29 18:44:27 S 15 32 26.918 +51 52 36.52 – V C57
2019-09-29 18:44:27 s 1 +11231.836 0 +375835.43 4910.0 – C57
2019-09-29 19:14:27 S 15 32 35.126 +51 53 39.37 – V C57
2019-09-29 19:14:27 s 1 +10165.760 0 +376229.88 3910.0 – C57
2019-09-29 19:44:27 S 15 32 43.039 +51 54 36.32 – V C57
2019-09-29 21:14:27 S 15 33 08.537 +51 57 51.73 – V C57
2019-09-29 21:44:27 S 15 33 16.188 +51 58 53.29 – V C57
2019-09-29 22:14:27 S 15 33 24.593 +51 59 55.54 – V C57
2019-09-29 22:44:27 S 15 33 33.665 +52 00 50.72 – V C57
2019-09-29 23:14:27 S 15 33 41.849 +52 01 57.54 – V C57
2019-09-30 00:14:27 S 15 33 57.691 +52 04 06.38 – V C57
2019-09-30 00:44:27 S 15 34 05.930 +52 05 06.83 – V C57
2019-09-30 01:14:27 S 15 34 14.004 +52 06 09.40 – V C57
2019-09-30 05:14:27 S 15 35 20.933 +52 14 32.32 – V C57
2019-09-30 05:14:27 s 1 -11150.981 0 +382222.42 7070.0 – C57
2019-09-30 05:19:20 C 15 34 01.54 +52 27 06.3 – V T05
2019-09-30 05:24:04 C 15 34 02.82 +52 27 15.1 – V T05
2019-09-30 05:33:10 C 15 34 05.19 +52 27 33.3 – V T05
2019-09-30 05:44:27 S 15 35 28.802 +52 15 28.30 – V C57
2019-09-30 05:44:27 s 1 -12214.670 0 +382428.30 1550.0 – C57
2019-09-30 05:51:24 C 15 34 10.02 +52 28 09.6 – V T05
2019-09-30 06:14:27 S 15 35 36.127 +52 16 26.22 – V C57
2019-09-30 06:14:27 s 1 -13277.978 0 +382625.35 3830.0 – C57
2019-09-30 08:14:27 S 15 36 10.507 +52 20 40.31 – V C57
2019-09-30 08:14:27 s 1 -17526.920 0 +383325.40 2360.0 – C57
2019-09-30 09:14:27 S 15 36 26.126 +52 22 38.78 – V C57
2019-09-30 09:14:27 s 1 -19648.493 0 +383622.69 5340.0 – C57
2019-09-30 10:44:27 S 15 36 51.583 +52 25 48.50 – V C57
2019-09-30 10:44:27 s 1 -22826.707 0 +384002.96 7370.0 – C57
2019-09-30 11:14:27 S 15 37 00.010 +52 26 50.57 – V C57
2019-09-30 11:14:27 s 1 -23884.914 0 +384112.24 1690.0 – C57
2019-09-30 11:44:27 S 15 37 08.186 +52 27 50.04 – V C57
2019-09-30 11:44:27 s 1 -24942.484 0 +384212.79 4630.0 – C57
2019-09-30 12:14:27 S 15 37 16.051 +52 28 48.18 – V C57
2019-09-30 12:14:27 s 1 -25999.395 0 +384304.64 6250.0 – C57
2019-09-30 13:14:27 S 15 37 33.482 +52 30 58.28 – V C57
2019-09-30 13:14:27 s 1 -28111.147 0 +384462.23 5830.0 – C57
2019-09-30 13:44:27 S 15 37 41.940 +52 31 56.96 – V C57
2019-09-30 13:44:27 s 1 -29165.943 0 +384527.99 3940.0 – C57
2019-09-30 14:14:27 S 15 37 49.879 +52 32 56.51 – V C57
2019-09-30 14:14:27 s 1 -30219.988 0 +384585.07 1020.0 – C57
2019-09-30 14:44:27 S 15 37 57.492 +52 33 53.35 – V C57
2019-09-30 14:44:27 s 1 -31273.261 0 +384633.49 7140.0 – C57
2019-09-30 15:44:27 S 15 38 15.394 +52 36 08.78 – V C57
2019-09-30 15:44:27 s 1 -33377.396 0 +384704.34 6820.0 – C57
2019-09-30 16:14:27 S 15 38 23.782 +52 37 10.02 – V C57
2019-09-30 16:14:27 s 1 -34428.215 0 +384726.79 520.0 – C57
2019-09-30 16:44:27 S 15 38 32.038 +52 38 08.48 – V C57
2019-09-30 16:44:27 s 1 -35478.170 0 +384740.60 3550.0 – C57