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
2021-11-17 20:43:56 S 10 18 14.462 -00 55 42.71 V C57
2021-11-17 20:43:56 s 1 -169641.93 8 +145189.30 8650.0 C57
2021-11-17 20:53:56 S 10 18 17.302 -00 55 50.05 V C57
2021-11-17 20:53:56 s 1 -169649.40 1 +144399.54 8630.0 C57
2021-11-17 21:03:56 S 10 18 20.851 -00 56 00.31 V C57
2021-11-17 21:03:56 s 1 -169654.92 0 +143608.11 1040.0 C57
2021-11-17 21:13:56 S 10 18 23.710 -00 56 14.86 V C57
2021-11-17 21:13:56 s 1 -169658.48 2 +142815.02 5860.0 C57
2021-11-17 21:33:56 S 10 18 29.935 -00 56 30.19 V C57
2021-11-17 21:33:56 s 1 -169659.68 5 +141223.86 2490.0 C57
2021-11-17 21:43:56 S 10 18 33.602 -00 56 37.68 V C57
2021-11-17 21:43:56 s 1 -169657.30 1 +140425.78 4210.0 C57
2021-11-17 21:53:56 S 10 18 36.605 -00 56 45.53 V C57
2021-11-17 21:53:56 s 1 -169652.90 9 +139626.04 8140.0 C57
2021-11-17 22:03:56 S 10 18 39.787 -00 56 55.43 V C57
2021-11-17 22:03:56 s 1 -169646.49 7 +138824.63 4230.0 C57
2021-11-17 22:13:56 S 10 18 42.912 -00 57 04.50 V C57
2021-11-17 22:13:56 s 1 -169638.05 2 +138021.55 2430.0 C57
2021-11-17 22:23:56 S 10 18 46.051 -00 57 15.08 V C57
2021-11-17 22:23:56 s 1 -169627.55 9 +137216.80 2690.0 C57
2021-11-17 22:33:56 S 10 18 49.392 -00 57 19.91 V C57
2021-11-17 22:33:56 s 1 -169615.00 7 +136410.39 4960.0 C57
2021-11-17 22:43:56 S 10 18 52.776 -00 57 29.48 V C57
2021-11-17 22:43:56 s 1 -169600.38 1 +135602.30 9190.0 C57
2021-11-17 22:53:56 S 10 18 55.980 -00 57 43.60 V C57
2021-11-17 22:53:56 s 1 -169583.66 8 +134792.53 5330.0 C57
2021-11-17 23:03:56 S 10 18 59.208 -00 57 47.16 V C57
2021-11-17 23:03:56 s 1 -169564.85 4 +133981.09 3330.0 C57
2021-11-17 23:13:56 S 10 19 02.899 -00 58 01.31 V C57
2021-11-17 23:13:56 s 1 -169543.92 6 +133167.98 3130.0 C57
2021-11-17 23:23:56 S 10 19 05.246 -00 58 01.96 V C57
2021-11-17 23:23:56 s 1 -169520.86 9 +132353.19 4680.0 C57
2021-11-17 23:33:56 S 10 19 08.875 -00 58 12.76 V C57
2021-11-17 23:33:56 s 1 -169495.67 0 +131536.72 7940.0 C57
2021-11-17 23:43:56 S 10 19 11.899 -00 58 22.30 V C57
2021-11-17 23:43:56 s 1 -169468.31 4 +130718.58 2840.0 C57
2021-11-17 23:53:56 S 10 19 15.257 -00 58 33.96 V C57
2021-11-17 23:53:56 s 1 -169438.78 7 +129898.76 9330.0 C57
2021-11-18 00:03:56 S 10 19 18.533 -00 58 41.12 V C57
2021-11-18 00:03:56 s 1 -169407.07 4 +129077.25 7370.0 C57
2021-11-18 00:13:56 S 10 19 21.466 -00 58 46.20 V C57
2021-11-18 00:13:56 s 1 -169373.16 1 +128254.07 6890.0 C57
2021-11-18 00:43:56 S 10 19 31.075 -00 59 12.98 V C57
2021-11-18 00:43:56 s 1 -169258.07 5 +125774.42 3810.0 C57
2021-11-18 00:53:56 S 10 19 34.471 -00 59 25.48 V C57
2021-11-18 00:53:56 s 1 -169215.21 4 +124944.51 8720.0 C57
2021-11-18 01:03:56 S 10 19 37.738 -00 59 28.57 V C57
2021-11-18 01:03:56 s 1 -169170.07 8 +124112.91 4830.0 C57
2021-11-18 01:13:56 S 10 19 40.481 -00 59 35.81 V C57
2021-11-18 01:13:56 s 1 -169122.65 1 +123279.63 2090.0 C57