17181 (1999 UM3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6740285265 ± 7.65e-08
Semi-major axis (a)2.3703717975 AU ± 6.99e-09
Inclination (i)10.65320757° ± 1.04e-05
Long. of Asc. Node (Ω)113.55698136° ± 5.93e-05
Arg. of Perihelion (ω)36.77082206° ± 5.91e-05
Mean Anomaly (M)23.98511905° ± 4.58e-06
Mean Motion (n)0.2700769803°/day ± 1.20e-09
Perihelion dist (q)0.77267359 AU ± 1.81e-07
Aphelion dist (Q)3.96807001 AU ± 1.82e-07
Orbital Period3.64942722 yr ± 1.61e-08
Physical Parameters
H (abs. magnitude)16.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual1.132″
Uncertainty0
Orbit TypeApollo
MOID0.071891 AU
Observations Used980
Oppositions50
Arc Total1955-2024
First Observation Used1955-10-24
Last Observation Used2024-11-02
Observations (1801)
Date Type RA Dec Mag Band Observatory
2021-11-18 01:23:56 S 10 19 43.884 -00 59 49.99 V C57
2021-11-18 01:23:56 s 1 -169072.91 9 +122444.66 430.0 C57
2021-11-18 01:33:56 S 10 19 47.414 -00 59 54.53 V C57
2021-11-18 01:33:56 s 1 -169020.86 5 +121608.00 9810.0 C57
2021-11-18 01:53:56 S 10 19 53.441 -01 00 13.68 V C57
2021-11-18 01:53:56 s 1 -168909.72 9 +119929.63 1420.0 C57
2021-11-18 02:03:56 S 10 19 56.942 -01 00 18.32 V C57
2021-11-18 02:03:56 s 1 -168850.61 5 +119087.92 3530.0 C57
2021-11-18 03:33:56 S 10 20 25.382 -01 01 36.16 V C57
2021-11-18 03:33:56 s 1 -168209.22 3 +111436.55 590.0 C57
2021-11-18 03:43:56 S 10 20 28.690 -01 01 50.27 V C57
2021-11-18 03:43:56 s 1 -168125.49 3 +110577.96 7770.0 C57
2021-11-18 03:53:56 S 10 20 31.735 -01 01 54.16 V C57
2021-11-18 03:53:56 s 1 -168039.20 6 +109717.68 5100.0 C57
2021-11-18 04:03:56 S 10 20 35.126 -01 02 06.65 V C57
2021-11-18 04:03:56 s 1 -167950.34 3 +108855.72 2510.0 C57
2021-11-18 04:13:56 S 10 20 38.318 -01 02 17.81 V C57
2021-11-18 04:13:56 s 1 -167858.88 6 +107992.07 9940.0 C57
2021-11-18 04:43:56 S 10 20 48.245 -01 02 43.19 V C57
2021-11-18 04:43:56 s 1 -167568.77 0 +105391.02 1600.0 C57
2021-11-18 05:23:56 S 10 21 00.379 -01 03 13.72 V C57
2021-11-18 05:23:56 s 1 -167144.50 1 +101899.39 6450.0 C57
2021-11-18 05:33:56 S 10 21 04.169 -01 03 22.28 V C57
2021-11-18 05:33:56 s 1 -167031.61 7 +101022.28 1460.0 C57
2021-11-18 05:53:56 S 10 21 10.145 -01 03 39.78 V C57
2021-11-18 05:53:56 s 1 -166797.53 2 +99263.037 9520.0 C57
2021-11-18 06:03:56 S 10 21 13.188 -01 03 49.00 V C57
2021-11-18 06:03:56 s 1 -166676.29 0 +98380.901 2420.0 C57
2021-11-18 06:13:56 S 10 21 16.558 -01 03 54.61 V C57
2021-11-18 06:13:56 s 1 -166552.22 2 +97497.091 4460.0 C57
2021-11-18 06:23:56 S 10 21 19.526 -01 04 03.58 V C57
2021-11-18 06:23:56 s 1 -166425.30 5 +96611.609 5580.0 C57
2021-11-18 06:33:56 S 10 21 22.721 -01 04 17.22 V C57
2021-11-18 06:33:56 s 1 -166295.52 0 +95724.458 5680.0 C57
2021-11-18 06:43:56 S 10 21 26.083 -01 04 25.54 V C57
2021-11-18 06:43:56 s 1 -166162.84 6 +94835.638 4690.0 C57
2021-11-18 06:53:56 S 10 21 29.328 -01 04 34.00 V C57
2021-11-18 06:53:56 s 1 -166027.26 1 +93945.151 2540.0 C57
2021-11-18 07:03:56 S 10 21 32.594 -01 04 40.08 V C57
2021-11-18 07:03:56 s 1 -165888.74 3 +93053.001 9140.0 C57
2021-11-18 07:13:56 S 10 21 35.647 -01 04 50.45 V C57
2021-11-18 07:13:56 s 1 -165747.27 1 +92159.188 4410.0 C57
2021-11-18 07:23:56 S 10 21 39.024 -01 04 58.66 V C57
2021-11-18 07:23:56 s 1 -165602.82 2 +91263.716 8270.0 C57
2021-11-18 07:33:56 S 10 21 42.408 -01 05 09.42 V C57
2021-11-18 07:33:56 s 1 -165455.37 6 +90366.586 640.0 C57
2021-11-18 07:43:56 S 10 21 45.137 -01 05 15.58 V C57
2021-11-18 07:43:56 s 1 -165304.90 8 +89467.801 1430.0 C57
2021-11-18 07:53:56 S 10 21 48.086 -01 05 22.20 V C57
2021-11-18 07:53:56 s 1 -165151.39 7 +88567.364 560.0 C57