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
2019-09-19 21:14:27 s 1 -157969.57 2 +323369.00 5410.0 – C57
2019-09-19 22:44:27 S 14 38 17.446 +42 45 24.08 – V C57
2019-09-19 22:44:27 s 1 -160265.38 1 +320270.72 1300.0 – C57
2019-09-19 23:14:27 S 14 38 23.522 +42 46 45.16 – V C57
2019-09-19 23:14:27 s 1 -161021.80 1 +319219.95 4740.0 – C57
2019-09-20 01:44:27 S 14 38 53.122 +42 53 30.08 – V C57
2019-09-20 01:44:27 s 1 -164735.59 7 +313830.47 7600.0 – C57
2019-09-20 02:14:27 S 14 38 59.004 +42 54 53.78 – V C57
2019-09-20 02:14:27 s 1 -165464.38 6 +312725.35 2450.0 – C57
2019-09-20 04:44:27 S 14 39 29.472 +43 01 40.58 – V C57
2019-09-20 04:44:27 s 1 -169035.96 4 +307062.86 1140.0 – C57
2019-09-20 05:09:26 C 14 37 58.28 +43 03 45.9 – V T08
2019-09-20 05:17:18 C 14 37 59.89 +43 04 06.2 – V T08
2019-09-20 05:22:12 C 14 38 00.90 +43 04 18.8 – V T08
2019-09-20 05:36:28 C 14 38 03.82 +43 04 55.8 – V T08
2019-09-20 07:14:27 S 14 40 00.521 +43 08 36.74 – V C57
2019-09-20 07:14:27 s 1 -172482.56 0 +301170.86 8430.0 – C57
2019-09-20 07:44:27 S 14 40 06.334 +43 09 54.76 – V C57
2019-09-20 07:44:27 s 1 -173156.33 8 +299964.75 3820.0 – C57
2019-09-20 08:14:27 S 14 40 12.310 +43 11 12.08 – V C57
2019-09-20 08:14:27 s 1 -173824.81 7 +298749.36 7530.0 – C57
2019-09-20 09:44:27 S 14 40 31.174 +43 15 28.62 – V C57
2019-09-20 09:44:27 s 1 -175797.93 1 +295047.39 7070.0 – C57
2019-09-20 10:14:27 S 14 40 37.598 +43 16 50.52 – V C57
2019-09-20 10:14:27 s 1 -176444.68 3 +293794.73 2560.0 – C57
2019-09-20 10:44:27 S 14 40 42.655 +43 17 58.24 – V C57
2019-09-20 10:44:27 s 1 -177085.86 7 +292532.72 5630.0 – C57
2019-09-20 11:14:27 S 14 40 48.902 +43 19 30.79 – V C57
2019-09-20 11:14:27 s 1 -177721.42 9 +291261.33 6120.0 – C57
2019-09-20 12:14:27 S 14 41 01.524 +43 22 14.09 – V C57
2019-09-20 12:14:27 s 1 -178975.45 8 +288690.35 8740.0 – C57
2019-09-20 13:14:27 S 14 41 13.325 +43 24 47.59 – V C57
2019-09-20 13:14:27 s 1 -180206.31 1 +286081.64 9150.0 – C57
2019-09-20 15:14:27 S 14 41 38.503 +43 30 19.69 – V C57
2019-09-20 15:14:27 s 1 -182596.59 9 +280750.47 8110.0 – C57
2019-09-20 17:44:27 S 14 42 07.867 +43 36 56.84 – V C57
2019-09-20 17:44:27 s 1 -185445.46 1 +273871.60 4290.0 – C57
2019-09-20 18:44:27 S 14 42 20.678 +43 39 48.82 – V C57
2019-09-20 18:44:27 s 1 -186540.11 0 +271052.69 3410.0 – C57
2019-09-20 19:14:27 S 14 42 26.755 +43 41 02.08 – V C57
2019-09-20 19:14:27 s 1 -187077.54 5 +269628.72 80.0 – C57
2019-09-20 20:14:27 S 14 42 39.900 +43 43 44.58 – V C57
2019-09-20 20:14:27 s 1 -188132.29 3 +266751.63 6700.0 – C57
2019-09-20 20:44:27 S 14 42 45.305 +43 45 11.81 – V C57
2019-09-20 20:44:27 s 1 -188649.46 3 +265298.47 6250.0 – C57
2019-09-20 21:14:27 S 14 42 51.926 +43 46 31.55 – V C57
2019-09-20 21:14:27 s 1 -189159.73 5 +263835.55 9700.0 – C57
2019-09-20 21:44:27 S 14 42 57.086 +43 47 50.03 – V C57
2019-09-20 21:44:27 s 1 -189663.03 6 +262362.83 6850.0 – C57
2019-09-20 23:14:27 S 14 43 15.972 +43 51 59.65 – V C57