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
2019-10-22 07:44:19 C 18 45 44.05 +62 11 39.3 – V T08
2019-10-22 08:14:26 S 18 44 43.862 +62 04 48.47 – V C57
2019-10-22 08:14:26 s 1 +153689.86 2 +165698.52 7440.0 – C57
2019-10-22 08:44:26 S 18 44 56.400 +62 04 42.28 – V C57
2019-10-22 08:44:26 s 1 +153455.01 5 +168061.53 340.0 – C57
2019-10-22 09:14:26 S 18 45 08.702 +62 04 36.52 – V C57
2019-10-22 09:14:26 s 1 +153204.49 6 +170407.28 2950.0 – C57
2019-10-22 11:14:26 S 18 46 00.144 +62 04 11.75 – V C57
2019-10-22 11:14:26 s 1 +152052.20 3 +179619.86 9590.0 – C57
2019-10-22 11:44:26 S 18 46 11.990 +62 04 04.69 – V C57
2019-10-22 11:44:26 s 1 +151728.12 8 +181880.88 4880.0 – C57
2019-10-22 12:14:26 S 18 46 24.734 +62 03 58.32 – V C57
2019-10-22 12:14:26 s 1 +151390.24 2 +184125.26 5370.0 – C57
2019-10-22 14:14:26 S 18 47 17.191 +62 03 33.05 – V C57
2019-10-22 14:14:26 s 1 +149906.11 9 +192938.25 5630.0 – C57
2019-10-22 14:44:26 S 18 47 29.302 +62 03 27.43 – V C57
2019-10-22 14:44:26 s 1 +149503.26 1 +195100.85 4180.0 – C57
2019-10-22 15:14:26 S 18 47 41.839 +62 03 20.38 – V C57
2019-10-22 15:14:26 s 1 +149088.17 6 +197247.38 2620.0 – C57
2019-10-22 17:44:26 S 18 48 47.021 +62 02 45.64 – V C57
2019-10-22 17:44:26 s 1 +146837.54 3 +207742.40 7520.0 – C57
2019-10-22 19:14:26 S 18 49 25.586 +62 02 25.76 – V C57
2019-10-22 19:14:26 s 1 +145354.93 0 +213852.60 8250.0 – C57
2019-10-22 19:44:26 S 18 49 38.177 +62 02 19.00 – V C57
2019-10-22 19:44:26 s 1 +144839.92 9 +215858.75 5820.0 – C57
2019-10-22 20:14:26 S 18 49 50.314 +62 02 13.38 – V C57
2019-10-22 20:14:26 s 1 +144314.85 5 +217849.74 9710.0 – C57
2019-10-22 22:14:26 S 18 50 42.835 +62 01 45.30 – V C57
2019-10-22 22:14:26 s 1 +142117.51 8 +225663.99 9350.0 – C57
2019-10-22 22:44:26 S 18 50 54.278 +62 01 38.78 – V C57
2019-10-22 22:44:26 s 1 +141544.81 1 +227580.54 2940.0 – C57
2019-10-22 23:14:26 S 18 51 08.674 +62 01 32.92 – V C57
2019-10-22 23:14:26 s 1 +140963.09 5 +229482.45 6020.0 – C57
2019-10-23 00:14:26 S 18 51 35.506 +62 01 15.64 – V C57
2019-10-23 00:14:26 s 1 +139773.28 9 +233242.70 2620.0 – C57
2019-10-23 00:44:26 S 18 51 47.234 +62 01 10.16 – V C57
2019-10-23 00:44:26 s 1 +139165.51 5 +235101.19 7090.0 – C57
2019-10-23 01:14:26 S 18 51 59.873 +62 01 02.60 – V C57
2019-10-23 01:14:26 s 1 +138549.36 6 +236945.37 2960.0 – C57
2019-10-23 03:14:26 S 18 52 52.363 +62 00 31.86 – V C57
2019-10-23 03:14:26 s 1 +136003.96 9 +244180.51 9230.0 – C57
2019-10-23 03:44:26 S 18 53 04.397 +62 00 25.09 – V C57
2019-10-23 03:44:26 s 1 +135348.12 9 +245954.28 8640.0 – C57
2019-10-23 04:14:26 S 18 53 17.086 +62 00 18.50 – V C57
2019-10-23 04:14:26 s 1 +134684.76 7 +247714.19 2010.0 – C57
2019-10-23 06:14:26 S 18 54 08.940 +61 59 48.48 – V C57
2019-10-23 06:14:26 s 1 +131958.69 3 +254616.77 2950.0 – C57
2019-10-23 06:44:26 S 18 54 21.648 +61 59 41.64 – V C57
2019-10-23 06:44:26 s 1 +131259.64 4 +256308.49 1930.0 – C57
2019-10-23 07:14:26 S 18 54 34.157 +61 59 33.58 – V C57