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
2021-11-23 17:25:05 s 1 +134739.70 5 +303296.99 9750.0 C57
2021-11-23 17:35:05 S 11 06 29.443 -02 53 14.89 V C57
2021-11-23 17:35:05 s 1 +134473.80 0 +303705.37 8380.0 C57
2021-11-23 17:45:05 S 11 06 32.494 -02 53 21.84 V C57
2021-11-23 17:45:05 s 1 +134207.37 9 +304112.59 5240.0 C57
2021-11-23 18:05:05 S 11 06 39.478 -02 53 42.76 V C57
2021-11-23 18:05:05 s 1 +133672.99 5 +304923.55 3630.0 C57
2021-11-23 18:15:05 S 11 06 42.857 -02 53 50.14 V C57
2021-11-23 18:15:05 s 1 +133405.03 7 +305327.30 5180.0 C57
2021-11-23 18:25:05 S 11 06 46.778 -02 53 57.34 V C57
2021-11-23 18:25:05 s 1 +133136.57 1 +305729.88 4970.0 C57
2021-11-23 18:35:05 S 11 06 49.442 -02 54 08.89 V C57
2021-11-23 18:35:05 s 1 +132867.60 0 +306131.32 3020.0 C57
2021-11-23 18:45:05 S 11 06 53.270 -02 54 13.10 V C57
2021-11-23 18:45:05 s 1 +132598.12 5 +306531.60 9340.0 C57
2021-11-23 18:55:05 S 11 06 56.590 -02 54 22.79 V C57
2021-11-23 18:55:05 s 1 +132328.14 8 +306930.72 3920.0 C57
2021-11-23 19:15:05 S 11 07 03.413 -02 54 38.12 V C57
2021-11-23 19:15:05 s 1 +131786.69 8 +307725.52 7940.0 C57
2021-11-23 19:25:05 S 11 07 06.936 -02 54 46.12 V C57
2021-11-23 19:25:05 s 1 +131515.22 9 +308121.19 7380.0 C57
2021-11-23 19:35:05 S 11 07 10.411 -02 54 57.96 V C57
2021-11-23 19:35:05 s 1 +131243.26 7 +308515.72 5130.0 C57
2021-11-23 19:45:05 S 11 07 13.896 -02 55 06.92 V C57
2021-11-23 19:45:05 s 1 +130970.81 3 +308909.09 1180.0 C57
2021-11-23 19:55:05 S 11 07 17.465 -02 55 11.14 V C57
2021-11-23 19:55:05 s 1 +130697.87 1 +309301.32 5550.0 C57
2021-11-23 21:05:05 S 11 07 41.095 -02 56 24.94 V C57
2021-11-23 21:05:05 s 1 +128773.75 3 +312014.87 9650.0 C57
2021-11-23 21:15:05 S 11 07 44.798 -02 56 25.04 V C57
2021-11-23 21:15:05 s 1 +128496.97 1 +312397.95 820.0 C57
2021-11-23 21:45:05 S 11 07 55.058 -02 56 54.89 V C57
2021-11-23 21:45:05 s 1 +127663.80 9 +313540.37 4680.0 C57
2021-11-23 21:55:05 S 11 07 58.834 -02 56 51.40 V C57
2021-11-23 21:55:05 s 1 +127385.15 6 +313918.90 9430.0 C57
2021-11-23 22:05:05 S 11 08 02.093 -02 57 17.57 V C57
2021-11-23 22:05:05 s 1 +127106.03 9 +314296.30 2600.0 C57
2021-11-23 22:15:05 S 11 08 05.287 -02 57 23.08 V C57
2021-11-23 22:15:05 s 1 +126826.46 2 +314672.56 4190.0 C57
2021-11-23 22:25:05 S 11 08 09.442 -02 57 35.03 V C57
2021-11-23 22:25:05 s 1 +126546.42 6 +315047.69 4200.0 C57
2021-11-23 22:45:05 S 11 08 15.682 -02 57 46.44 V C57
2021-11-23 22:45:05 s 1 +125984.98 3 +315794.56 9540.0 C57
2021-11-23 22:55:05 S 11 08 18.756 -02 57 58.97 V C57
2021-11-23 22:55:05 s 1 +125703.58 1 +316166.29 4880.0 C57
2021-11-23 23:15:05 S 11 08 26.405 -02 58 18.91 V C57
2021-11-23 23:15:05 s 1 +125139.42 4 +316906.37 920.0 C57
2021-11-23 23:25:05 S 11 08 30.187 -02 58 30.25 V C57
2021-11-23 23:25:05 s 1 +124856.67 4 +317274.72 1650.0 C57
2021-11-23 23:45:05 S 11 08 36.290 -02 58 38.24 V C57