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
2021-12-06 20:53:55 S 12 49 17.119 -06 52 25.46 V C57
2021-12-06 20:53:55 s 1 +136378.42 9 +304711.07 4590.0 C57
2021-12-06 21:13:55 S 12 49 23.352 -06 52 40.48 V C57
2021-12-06 21:13:55 s 1 +135864.17 6 +305543.47 3200.0 C57
2021-12-06 21:23:55 S 12 49 26.772 -06 52 37.67 V C57
2021-12-06 21:23:55 s 1 +135606.28 3 +305957.98 4760.0 C57
2021-12-06 21:43:55 S 12 49 32.710 -06 53 10.07 V C57
2021-12-06 21:43:55 s 1 +135088.97 5 +306783.63 2420.0 C57
2021-12-07 04:53:55 S 12 51 46.421 -06 57 49.57 V C57
2021-12-07 04:53:55 s 1 +123505.54 9 +323461.43 8050.0 C57
2021-12-07 05:53:55 S 12 52 04.498 -06 58 27.01 V C57
2021-12-07 05:53:55 s 1 +121823.90 7 +325627.83 200.0 C57
2021-12-07 06:13:55 S 12 52 10.606 -06 58 38.96 V C57
2021-12-07 06:13:55 s 1 +121260.04 8 +326341.34 2610.0 C57
2021-12-07 06:23:55 S 12 52 14.126 -06 58 40.62 V C57
2021-12-07 06:23:55 s 1 +120977.50 5 +326696.48 6660.0 C57
2021-12-07 06:53:55 S 12 52 23.297 -06 59 08.27 V C57
2021-12-07 06:53:55 s 1 +120127.44 3 +327755.47 270.0 C57
2021-12-07 10:03:55 S 12 53 21.434 -07 01 10.38 V C57
2021-12-07 10:03:55 s 1 +114661.61 9 +334239.33 6150.0 C57
2021-12-07 10:23:55 S 12 53 27.290 -07 01 24.85 V C57
2021-12-07 10:23:55 s 1 +114078.29 1 +334899.56 560.0 C57
2021-12-07 13:13:55 S 12 54 19.231 -07 03 22.46 V C57
2021-12-07 13:13:55 s 1 +109061.82 7 +340341.86 6830.0 C57
2021-12-07 14:23:55 S 12 54 41.350 -07 04 13.19 V C57
2021-12-07 14:23:55 s 1 +106967.05 6 +342495.07 8990.0 C57
2021-12-07 15:53:55 S 12 55 07.594 -07 04 56.46 V C57
2021-12-07 15:53:55 s 1 +104249.92 7 +345188.87 1620.0 C57
2021-12-07 18:33:55 S 12 55 57.214 -07 06 54.04 V C57
2021-12-07 18:33:55 s 1 +99356.200 0 +349772.02 8010.0 C57
2021-12-07 22:33:55 S 12 57 10.248 -07 09 27.76 V C57
2021-12-07 22:33:55 s 1 +91874.229 0 +356157.78 7910.0 C57
2021-12-07 23:33:55 S 12 57 27.710 -07 10 10.06 V C57
2021-12-07 23:33:55 s 1 +89978.997 0 +357663.38 8340.0 C57
2021-12-08 00:03:55 S 12 57 37.087 -07 10 30.97 V C57
2021-12-08 00:03:55 s 1 +89027.855 0 +358402.64 6980.0 C57
2021-12-08 07:33:55 S 12 59 53.417 -07 15 18.32 V C57
2021-12-08 07:33:55 s 1 +74501.420 0 +368418.31 600.0 C57
2021-12-08 09:03:55 S 13 00 20.520 -07 16 26.54 V C57
2021-12-08 09:03:55 s 1 +71543.011 0 +370182.20 1960.0 C57
2021-12-08 09:23:55 S 13 00 26.402 -07 16 26.72 V C57
2021-12-08 09:23:55 s 1 +70883.406 0 +370563.44 3350.0 C57
2021-12-08 12:33:55 S 13 01 23.539 -07 18 33.66 V C57
2021-12-08 12:33:55 s 1 +64579.701 0 +373991.24 8770.0 C57
2021-12-08 12:43:55 S 13 01 25.870 -07 18 41.90 V C57
2021-12-08 12:43:55 s 1 +64246.125 0 +374161.96 3170.0 C57
2021-12-09 05:33:55 S 13 06 25.891 -07 29 33.04 V C57
2021-12-09 05:33:55 s 1 +29829.519 0 +386476.63 7920.0 C57
2021-12-09 05:53:55 S 13 06 31.814 -07 29 49.24 V C57
2021-12-09 05:53:55 s 1 +29136.823 0 +386622.84 3030.0 C57