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
2019-09-27 15:44:27 s 1 +113216.73 0 +283347.11 4410.0 – C57
2019-09-27 16:14:27 S 15 18 52.836 +50 05 08.81 – V C57
2019-09-27 16:14:27 s 1 +112357.55 8 +284812.68 9980.0 – C57
2019-09-27 20:14:27 S 15 19 57.122 +50 13 57.58 – V C57
2019-09-27 20:14:27 s 1 +105318.01 0 +296090.77 220.0 – C57
2019-09-27 21:14:27 S 15 20 12.480 +50 15 57.89 – V C57
2019-09-27 21:14:27 s 1 +103514.89 7 +298788.30 5200.0 – C57
2019-09-27 21:44:27 S 15 20 20.299 +50 17 01.61 – V C57
2019-09-27 21:44:27 s 1 +102607.27 4 +300119.06 8120.0 – C57
2019-09-27 23:14:27 S 15 20 44.882 +50 20 22.52 – V C57
2019-09-27 23:14:27 s 1 +99861.005 0 +304039.92 1250.0 – C57
2019-09-27 23:44:27 S 15 20 52.706 +50 21 26.14 – V C57
2019-09-27 23:44:27 s 1 +98938.013 0 +305323.24 1160.0 – C57
2019-09-28 00:14:27 S 15 21 00.490 +50 22 27.16 – V C57
2019-09-28 00:14:27 s 1 +98011.351 0 +306594.82 5860.0 – C57
2019-09-28 01:44:27 S 15 21 24.850 +50 25 48.65 – V C57
2019-09-28 01:44:27 s 1 +95210.001 0 +310339.60 770.0 – C57
2019-09-28 03:14:27 S 15 21 48.144 +50 28 54.59 – V C57
2019-09-28 03:14:27 s 1 +92377.948 0 +313980.46 6140.0 – C57
2019-09-28 05:14:27 S 15 22 20.105 +50 33 15.98 – V C57
2019-09-28 05:14:27 s 1 +88556.985 0 +318675.38 860.0 – C57
2019-09-28 05:44:27 S 15 22 27.374 +50 34 12.86 – V C57
2019-09-28 05:44:27 s 1 +87594.121 0 +319820.91 1420.0 – C57
2019-09-28 07:14:27 S 15 22 52.234 +50 37 31.04 – V C57
2019-09-28 07:14:27 s 1 +84688.138 0 +323190.49 6490.0 – C57
2019-09-28 07:44:27 S 15 23 00.278 +50 38 40.02 – V C57
2019-09-28 07:44:27 s 1 +83713.863 0 +324291.49 6560.0 – C57
2019-09-28 08:14:27 S 15 23 07.800 +50 39 39.82 – V C57
2019-09-28 08:14:27 s 1 +82736.871 0 +325381.46 4430.0 – C57
2019-09-28 08:44:27 S 15 23 15.209 +50 40 38.42 – V C57
2019-09-28 08:44:27 s 1 +81757.213 0 +326460.44 280.0 – C57
2019-09-28 09:44:27 S 15 23 32.666 +50 42 57.24 – V C57
2019-09-28 09:44:27 s 1 +79790.111 0 +328585.59 6550.0 – C57
2019-09-28 10:14:27 S 15 23 40.250 +50 43 59.12 – V C57
2019-09-28 10:14:27 s 1 +78802.768 0 +329631.84 7290.0 – C57
2019-09-28 10:44:27 S 15 23 47.551 +50 44 59.53 – V C57
2019-09-28 10:44:27 s 1 +77812.963 0 +330667.25 6660.0 – C57
2019-09-28 11:14:27 S 15 23 55.301 +50 45 58.00 – V C57
2019-09-28 11:14:27 s 1 +76820.746 0 +331691.86 4810.0 – C57
2019-09-28 13:14:27 S 15 24 28.135 +50 50 21.66 – V C57
2019-09-28 13:14:27 s 1 +72828.717 0 +335683.07 8260.0 – C57
2019-09-28 13:44:27 S 15 24 36.134 +50 51 25.42 – V C57
2019-09-28 13:44:27 s 1 +71825.155 0 +336654.25 2590.0 – C57
2019-09-28 15:14:27 S 15 24 59.707 +50 54 32.90 – V C57
2019-09-28 15:14:27 s 1 +68801.865 0 +339504.42 4220.0 – C57
2019-09-28 15:44:27 S 15 25 08.479 +50 55 40.76 – V C57
2019-09-28 15:44:27 s 1 +67790.049 0 +340433.48 8120.0 – C57
2019-09-28 16:14:27 S 15 25 16.586 +50 56 47.40 – V C57
2019-09-28 16:14:27 s 1 +66776.279 0 +341352.09 2270.0 – C57
2019-09-28 16:44:27 S 15 25 24.067 +50 57 45.07 – V C57