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
2021-11-25 06:15:05 s 1 +66586.105 0 +366791.93 6210.0 C57
2021-11-25 06:25:05 S 11 19 07.450 -03 25 53.40 V C57
2021-11-25 06:25:05 s 1 +66247.050 0 +366962.33 2410.0 C57
2021-11-25 06:35:05 S 11 19 11.304 -03 26 11.51 V C57
2021-11-25 06:35:05 s 1 +65907.815 0 +367131.70 8080.0 C57
2021-11-25 06:45:05 S 11 19 14.450 -03 26 17.59 V C57
2021-11-25 06:45:05 s 1 +65568.398 0 +367300.06 3210.0 C57
2021-11-25 06:55:05 S 11 19 17.878 -03 26 23.10 V C57
2021-11-25 06:55:05 s 1 +65228.802 0 +367467.41 7810.0 C57
2021-11-25 07:05:05 S 11 19 20.870 -03 26 31.60 V C57
2021-11-25 07:05:05 s 1 +64889.027 0 +367633.73 1880.0 C57
2021-11-25 07:15:05 S 11 19 24.667 -03 26 36.46 V C57
2021-11-25 07:15:05 s 1 +64549.075 0 +367799.04 5430.0 C57
2021-11-25 08:45:05 S 11 19 54.619 -03 28 05.63 V C57
2021-11-25 08:45:05 s 1 +61481.700 0 +369241.19 4560.0 C57
2021-11-25 09:45:05 S 11 20 15.658 -03 28 57.76 V C57
2021-11-25 09:45:05 s 1 +59429.240 0 +370157.04 8790.0 C57
2021-11-25 10:05:05 S 11 20 22.186 -03 29 12.37 V C57
2021-11-25 10:05:05 s 1 +58743.794 0 +370454.23 9840.0 C57
2021-11-25 10:25:05 S 11 20 28.925 -03 29 28.57 V C57
2021-11-25 10:25:05 s 1 +58057.716 0 +370747.39 9090.0 C57
2021-11-25 10:45:05 S 11 20 35.899 -03 29 45.64 V C57
2021-11-25 10:45:05 s 1 +57371.015 0 +371036.50 6580.0 C57
2021-11-25 11:45:05 S 11 20 56.273 -03 30 39.38 V C57
2021-11-25 11:45:05 s 1 +55307.255 0 +371879.64 8800.0 C57
2021-11-25 12:45:05 S 11 21 17.138 -03 31 30.00 V C57
2021-11-25 12:45:05 s 1 +53238.188 0 +372686.51 6310.0 C57
2021-11-25 13:15:05 S 11 21 27.055 -03 32 01.18 V C57
2021-11-25 13:15:05 s 1 +52201.735 0 +373076.37 9810.0 C57
2021-11-25 13:25:05 S 11 21 29.722 -03 32 08.56 V C57
2021-11-25 13:25:05 s 1 +51855.973 0 +373204.31 6890.0 C57
2021-11-25 13:35:05 S 11 21 34.018 -03 32 19.50 V C57
2021-11-25 13:35:05 s 1 +51510.074 0 +373331.25 3610.0 C57
2021-11-25 13:45:05 S 11 21 36.804 -03 32 19.03 V C57
2021-11-25 13:45:05 s 1 +51164.039 0 +373457.18 9960.0 C57
2021-11-25 13:55:05 S 11 21 40.375 -03 32 36.24 V C57
2021-11-25 13:55:05 s 1 +50817.869 0 +373582.11 5950.0 C57
2021-11-25 14:05:05 S 11 21 43.670 -03 32 41.78 V C57
2021-11-25 14:05:05 s 1 +50471.566 0 +373706.03 1580.0 C57
2021-11-25 14:15:05 S 11 21 46.793 -03 32 49.63 V C57
2021-11-25 14:15:05 s 1 +50125.129 0 +373828.95 6860.0 C57
2021-11-25 14:35:05 S 11 21 53.594 -03 33 09.97 V C57
2021-11-25 14:35:05 s 1 +49431.861 0 +374071.78 6370.0 C57
2021-11-25 14:45:05 S 11 21 57.722 -03 33 18.61 V C57
2021-11-25 14:45:05 s 1 +49085.031 0 +374191.69 610.0 C57
2021-11-25 15:05:05 S 11 22 04.030 -03 33 40.21 V C57
2021-11-25 15:05:05 s 1 +48390.987 0 +374428.50 8080.0 C57
2021-11-25 15:45:05 S 11 22 18.382 -03 34 08.76 V C57
2021-11-25 15:45:05 s 1 +47001.386 0 +374890.09 9100.0 C57
2021-11-25 17:45:05 S 11 22 58.390 -03 35 55.03 V C57