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
2019-09-30 17:14:27 S 15 38 40.433 +52 39 09.72 – V C57
2019-09-30 17:14:27 s 1 -36527.241 0 +384745.78 5980.0 – C57
2019-09-30 18:44:27 S 15 39 05.796 +52 42 15.55 – V C57
2019-09-30 18:44:27 s 1 -39668.916 0 +384709.60 400.0 – C57
2019-09-30 19:14:27 S 15 39 13.310 +52 43 11.82 – V C57
2019-09-30 19:14:27 s 1 -40714.221 0 +384680.32 1160.0 – C57
2019-09-30 19:44:27 S 15 39 22.219 +52 44 16.48 – V C57
2019-09-30 19:44:27 s 1 -41758.529 0 +384642.44 1670.0 – C57
2019-09-30 20:14:27 S 15 39 29.671 +52 45 10.04 – V C57
2019-09-30 20:14:27 s 1 -42801.818 0 +384595.97 2010.0 – C57
2019-09-30 21:14:27 S 15 39 47.386 +52 47 19.07 – V C57
2019-09-30 21:14:27 s 1 -44885.249 0 +384477.27 2450.0 – C57
2019-09-30 21:44:27 S 15 39 56.191 +52 48 23.26 – V C57
2019-09-30 21:44:27 s 1 -45925.346 0 +384405.05 2690.0 – C57
2019-09-30 22:14:27 S 15 40 03.991 +52 49 18.98 – V C57
2019-09-30 22:14:27 s 1 -46964.335 0 +384324.27 6960.0 – C57
2019-09-30 22:44:27 S 15 40 12.034 +52 50 19.90 – V C57
2019-09-30 22:44:27 s 1 -48002.193 0 +384234.92 6430.0 – C57
2019-10-01 00:14:27 S 15 40 37.673 +52 53 25.62 – V C57
2019-10-01 00:14:27 s 1 -51108.761 0 +383915.52 3060.0 – C57
2019-10-01 02:17:25 C 15 39 40.90 +53 08 58.9 – V 703
2019-10-01 02:25:14 C 15 39 43.16 +53 09 13.5 – V 703
2019-10-01 02:33:02 C 15 39 45.27 +53 09 28.7 – V 703
2019-10-01 02:40:52 C 15 39 47.37 +53 09 43.6 – V 703
2019-10-01 04:14:27 S 15 41 43.908 +53 01 24.49 – V C57
2019-10-01 04:14:27 s 1 -59337.630 0 +382688.03 8810.0 – C57
2019-10-01 05:44:27 S 15 42 10.087 +53 04 34.14 – V C57
2019-10-01 05:44:27 s 1 -62400.991 0 +382087.08 1110.0 – C57
2019-10-01 06:44:27 S 15 42 26.712 +53 06 31.54 – V C57
2019-10-01 06:44:27 s 1 -64435.937 0 +381643.89 6630.0 – C57
2019-10-01 08:14:27 S 15 42 53.287 +53 09 39.38 – V C57
2019-10-01 08:14:27 s 1 -67476.962 0 +380915.31 9480.0 – C57
2019-10-01 08:44:27 S 15 43 01.430 +53 10 39.11 – V C57
2019-10-01 08:44:27 s 1 -68487.507 0 +380655.45 700.0 – C57
2019-10-01 09:14:27 S 15 43 09.506 +53 11 34.98 – V C57
2019-10-01 09:14:27 s 1 -69496.450 0 +380387.09 280.0 – C57
2019-10-01 09:44:27 S 15 43 17.801 +53 12 44.64 – V C57
2019-10-01 09:44:27 s 1 -70503.767 0 +380110.23 8130.0 – C57
2019-10-01 11:44:27 S 15 43 51.965 +53 16 36.95 – V C57
2019-10-01 11:44:27 s 1 -74516.317 0 +378917.81 970.0 – C57
2019-10-01 12:44:27 S 15 44 08.393 +53 18 35.75 – V C57
2019-10-01 12:44:27 s 1 -76512.237 0 +378270.62 5240.0 – C57
2019-10-01 13:44:27 S 15 44 26.770 +53 20 43.91 – V C57
2019-10-01 13:44:27 s 1 -78501.006 0 +377589.46 650.0 – C57
2019-10-01 16:14:27 S 15 45 08.215 +53 25 41.66 – V C57
2019-10-01 16:14:27 s 1 -83440.405 0 +375737.83 1670.0 – C57
2019-10-01 16:44:27 S 15 45 16.942 +53 26 35.63 – V C57
2019-10-01 16:44:27 s 1 -84422.519 0 +375342.00 8010.0 – C57
2019-10-01 17:14:27 S 15 45 25.668 +53 27 39.78 – V C57
2019-10-01 17:14:27 s 1 -85402.655 0 +374937.67 1560.0 – C57