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
2021-11-22 17:45:05 S 10 58 12.984 -02 32 02.62 V C57
2021-11-22 17:45:05 s 1 +165996.39 7 +232972.10 800.0 C57
2021-11-22 17:55:05 S 10 58 15.910 -02 32 04.24 V C57
2021-11-22 17:55:05 s 1 +165831.72 6 +233557.30 5110.0 C57
2021-11-22 18:25:05 S 10 58 26.983 -02 32 35.02 V C57
2021-11-22 18:25:05 s 1 +165331.97 6 +235304.84 7670.0 C57
2021-11-22 19:35:05 S 10 58 51.389 -02 33 37.26 V C57
2021-11-22 19:35:05 s 1 +164132.97 9 +239335.69 3490.0 C57
2021-11-22 19:55:05 S 10 58 58.534 -02 33 56.74 V C57
2021-11-22 19:55:05 s 1 +163782.10 1 +240475.39 5680.0 C57
2021-11-22 20:05:05 S 10 59 01.954 -02 34 03.32 V C57
2021-11-22 20:05:05 s 1 +163605.29 8 +241043.26 6950.0 C57
2021-11-22 20:25:05 S 10 59 08.657 -02 34 25.18 V C57
2021-11-22 20:25:05 s 1 +163248.98 6 +242175.02 9880.0 C57
2021-11-22 20:45:05 S 10 59 15.415 -02 34 37.49 V C57
2021-11-22 20:45:05 s 1 +162889.09 3 +243301.50 120.0 C57
2021-11-22 20:55:05 S 10 59 18.929 -02 34 48.94 V C57
2021-11-22 20:55:05 s 1 +162707.81 4 +243862.77 5520.0 C57
2021-11-22 21:15:05 S 10 59 25.918 -02 35 04.27 V C57
2021-11-22 21:15:05 s 1 +162342.61 1 +244981.35 6950.0 C57
2021-11-22 21:55:05 S 10 59 39.996 -02 35 40.81 V C57
2021-11-22 21:55:05 s 1 +161601.73 6 +247202.80 2740.0 C57
2021-11-22 22:05:05 S 10 59 43.889 -02 35 48.77 V C57
2021-11-22 22:05:05 s 1 +161414.35 9 +247754.89 6550.0 C57
2021-11-22 22:15:05 S 10 59 47.086 -02 36 00.29 V C57
2021-11-22 22:15:05 s 1 +161226.12 7 +248305.67 7330.0 C57
2021-11-22 22:35:05 S 10 59 54.398 -02 36 24.59 V C57
2021-11-22 22:35:05 s 1 +160847.11 1 +249403.34 9880.0 C57
2021-11-22 23:15:05 S 11 00 08.042 -02 36 56.23 V C57
2021-11-22 23:15:05 s 1 +160078.98 2 +251583.08 9250.0 C57
2021-11-22 23:45:05 S 11 00 18.072 -02 37 14.38 V C57
2021-11-22 23:45:05 s 1 +159494.16 9 +253204.28 470.0 C57
2021-11-23 00:45:05 S 11 00 38.578 -02 38 13.20 V C57
2021-11-23 00:45:05 s 1 +158302.55 7 +256411.90 5250.0 C57
2021-11-23 00:55:05 S 11 00 42.432 -02 38 24.43 V C57
2021-11-23 00:55:05 s 1 +158101.14 7 +256942.01 9470.0 C57
2021-11-23 01:05:05 S 11 00 46.073 -02 38 29.65 V C57
2021-11-23 01:05:05 s 1 +157898.94 5 +257470.84 890.0 C57
2021-11-23 01:15:05 S 11 00 49.572 -02 38 41.53 V C57
2021-11-23 01:15:05 s 1 +157695.95 3 +257998.39 9530.0 C57
2021-11-23 01:25:05 S 11 00 53.222 -02 38 49.24 V C57
2021-11-23 01:25:05 s 1 +157492.17 6 +258524.66 5390.0 C57
2021-11-23 01:35:05 S 11 00 56.750 -02 39 00.76 V C57
2021-11-23 01:35:05 s 1 +157287.61 6 +259049.66 8500.0 C57
2021-11-23 01:45:05 S 11 00 59.434 -02 38 54.13 V C57
2021-11-23 01:45:05 s 1 +157082.27 7 +259573.38 8860.0 C57
2021-11-23 01:55:05 S 11 01 03.526 -02 39 16.24 V C57
2021-11-23 01:55:05 s 1 +156876.16 3 +260095.83 6480.0 C57
2021-11-23 02:15:05 S 11 01 10.771 -02 39 30.64 V C57
2021-11-23 02:15:05 s 1 +156461.62 2 +261136.92 3580.0 C57