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
2019-10-24 21:14:26 s 1 +63665.081 0 +350469.82 9360.0 – C57
2019-10-24 22:44:26 S 19 11 39.283 +61 47 26.92 – V C57
2019-10-24 22:44:26 s 1 +60687.765 0 +352838.16 9220.0 – C57
2019-10-24 23:14:26 S 19 11 50.950 +61 47 15.86 – V C57
2019-10-24 23:14:26 s 1 +59692.158 0 +353607.77 0.0 – C57
2019-10-24 23:44:26 S 19 12 03.775 +61 47 05.17 – V C57
2019-10-24 23:44:26 s 1 +58695.028 0 +354367.51 3040.0 – C57
2019-10-25 01:44:26 S 19 12 56.477 +61 46 19.06 – V C57
2019-10-25 01:44:26 s 1 +54691.985 0 +357308.19 80.0 – C57
2019-10-25 02:14:26 S 19 13 08.858 +61 46 08.62 – V C57
2019-10-25 02:14:26 s 1 +53687.768 0 +358018.92 6100.0 – C57
2019-10-25 02:44:26 S 19 13 20.971 +61 45 59.18 – V C57
2019-10-25 02:44:26 s 1 +52682.237 0 +358719.92 5030.0 – C57
2019-10-25 04:14:26 S 19 14 01.207 +61 45 21.17 – V C57
2019-10-25 04:14:26 s 1 +49658.097 0 +360764.78 360.0 – C57
2019-10-25 04:44:26 S 19 14 13.558 +61 45 10.94 – V C57
2019-10-25 04:44:26 s 1 +48647.645 0 +361427.10 1990.0 – C57
2019-10-25 05:14:26 S 19 14 25.644 +61 45 01.01 – V C57
2019-10-25 05:14:26 s 1 +47636.045 0 +362079.80 7050.0 – C57
2019-10-25 08:14:26 S 19 15 42.898 +61 43 52.00 – V C57
2019-10-25 08:14:26 s 1 +41544.124 0 +365795.27 4950.0 – C57
2019-10-25 09:44:26 S 19 16 23.426 +61 43 12.72 – V C57
2019-10-25 09:44:26 s 1 +38485.216 0 +367524.89 3110.0 – C57
2019-10-25 10:44:26 S 19 16 47.767 +61 42 52.38 – V C57
2019-10-25 10:44:26 s 1 +36441.706 0 +368630.89 7020.0 – C57
2019-10-25 12:14:26 S 19 17 26.342 +61 42 17.03 – V C57
2019-10-25 12:14:26 s 1 +33370.675 0 +370219.64 2430.0 – C57
2019-10-25 12:44:26 S 19 17 40.068 +61 42 02.05 – V C57
2019-10-25 12:44:26 s 1 +32345.577 0 +370730.56 480.0 – C57
2019-10-25 13:14:26 S 19 17 53.539 +61 41 50.71 – V C57
2019-10-25 13:14:26 s 1 +31319.816 0 +371232.18 3450.0 – C57
2019-10-25 13:44:26 S 19 18 04.709 +61 41 38.65 – V C57
2019-10-25 13:44:26 s 1 +30293.420 0 +371724.52 1460.0 – C57
2019-10-25 15:14:26 S 19 18 45.118 +61 41 01.03 – V C57
2019-10-25 15:14:26 s 1 +27210.708 0 +373146.00 6470.0 – C57
2019-10-25 16:14:26 S 19 19 10.142 +61 40 37.09 – V C57
2019-10-25 16:14:26 s 1 +25152.906 0 +374047.55 9850.0 – C57
2019-10-25 17:44:26 S 19 19 49.394 +61 39 58.54 – V C57
2019-10-25 17:44:26 s 1 +22062.758 0 +375331.01 6670.0 – C57
2019-10-25 18:44:26 S 19 20 14.743 +61 39 33.37 – V C57
2019-10-25 18:44:26 s 1 +20000.676 0 +376140.94 6680.0 – C57
2019-10-25 20:14:26 S 19 20 54.089 +61 38 52.30 – V C57
2019-10-25 20:14:26 s 1 +16905.110 0 +377287.54 1570.0 – C57
2019-10-25 20:44:26 S 19 21 06.629 +61 38 40.52 – V C57
2019-10-25 20:44:26 s 1 +15872.707 0 +377651.59 8820.0 – C57
2019-10-25 21:14:26 S 19 21 20.062 +61 38 27.96 – V C57
2019-10-25 21:14:26 s 1 +14840.074 0 +378006.58 2340.0 – C57
2019-10-25 21:44:26 S 19 21 31.610 +61 38 16.87 – V C57
2019-10-25 21:44:26 s 1 +13807.235 0 +378352.54 2220.0 – C57
2019-10-25 23:14:26 S 19 22 12.278 +61 37 35.08 – V C57