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
2021-11-24 15:05:05 s 1 +96527.974 0 +346976.60 5710.0 C57
2021-11-24 15:35:05 S 11 14 02.813 -03 12 51.70 V C57
2021-11-24 15:35:05 s 1 +95574.430 0 +347767.53 4590.0 C57
2021-11-24 15:45:05 S 11 14 06.478 -03 12 51.66 V C57
2021-11-24 15:45:05 s 1 +95255.999 0 +348029.06 5650.0 C57
2021-11-24 16:05:05 S 11 14 13.702 -03 13 11.60 V C57
2021-11-24 16:05:05 s 1 +94618.270 0 +348548.95 4940.0 C57
2021-11-24 16:25:05 S 11 14 20.222 -03 13 25.43 V C57
2021-11-24 16:25:05 s 1 +93979.395 0 +349064.62 500.0 C57
2021-11-24 16:35:05 S 11 14 23.743 -03 13 41.88 V C57
2021-11-24 16:35:05 s 1 +93659.531 0 +349320.87 6900.0 C57
2021-11-24 16:55:05 S 11 14 30.509 -03 14 02.83 V C57
2021-11-24 16:55:05 s 1 +93018.956 0 +349830.20 6940.0 C57
2021-11-24 17:05:05 S 11 14 33.970 -03 14 11.80 V C57
2021-11-24 17:05:05 s 1 +92698.248 0 +350083.29 590.0 C57
2021-11-24 17:15:05 S 11 14 37.291 -03 14 17.66 V C57
2021-11-24 17:15:05 s 1 +92377.262 0 +350335.33 3340.0 C57
2021-11-24 17:35:05 S 11 14 44.736 -03 14 34.26 V C57
2021-11-24 17:35:05 s 1 +91734.458 0 +350836.25 6160.0 C57
2021-11-24 18:05:05 S 11 14 55.056 -03 15 07.45 V C57
2021-11-24 18:05:05 s 1 +90768.197 0 +351579.74 3730.0 C57
2021-11-24 18:25:05 S 11 15 01.270 -03 15 18.58 V C57
2021-11-24 18:25:05 s 1 +90122.667 0 +352070.16 7740.0 C57
2021-11-24 18:45:05 S 11 15 08.338 -03 15 43.56 V C57
2021-11-24 18:45:05 s 1 +89476.066 0 +352556.38 8290.0 C57
2021-11-24 18:55:05 S 11 15 11.304 -03 15 53.50 V C57
2021-11-24 18:55:05 s 1 +89152.366 0 +352797.92 2280.0 C57
2021-11-24 19:05:05 S 11 15 15.744 -03 15 57.60 V C57
2021-11-24 19:05:05 s 1 +88828.402 0 +353038.42 5430.0 C57
2021-11-24 19:25:05 S 11 15 21.751 -03 16 15.20 V C57
2021-11-24 19:25:05 s 1 +88179.687 0 +353516.27 9190.0 C57
2021-11-24 19:35:05 S 11 15 25.786 -03 16 18.01 V C57
2021-11-24 19:35:05 s 1 +87854.939 0 +353753.63 9820.0 C57
2021-11-24 19:55:05 S 11 15 32.407 -03 16 39.94 V C57
2021-11-24 19:55:05 s 1 +87204.666 0 +354225.21 8590.0 C57
2021-11-24 20:15:05 S 11 15 39.262 -03 16 54.12 V C57
2021-11-24 20:15:05 s 1 +86553.368 0 +354692.61 4080.0 C57
2021-11-24 20:25:05 S 11 15 42.722 -03 17 04.85 V C57
2021-11-24 20:25:05 s 1 +86227.337 0 +354924.75 600.0 C57
2021-11-24 20:35:05 S 11 15 45.602 -03 17 10.25 V C57
2021-11-24 20:35:05 s 1 +85901.053 0 +355155.85 6320.0 C57
2021-11-24 20:45:05 S 11 15 49.610 -03 17 21.34 V C57
2021-11-24 20:45:05 s 1 +85574.519 0 +355385.90 1240.0 C57
2021-11-24 20:55:05 S 11 15 52.843 -03 17 31.88 V C57
2021-11-24 20:55:05 s 1 +85247.734 0 +355614.92 5370.0 C57
2021-11-24 21:05:05 S 11 15 56.273 -03 17 44.30 V C57
2021-11-24 21:05:05 s 1 +84920.700 0 +355842.89 8700.0 C57
2021-11-24 21:15:05 S 11 15 59.467 -03 17 52.55 V C57
2021-11-24 21:15:05 s 1 +84593.419 0 +356069.82 1240.0 C57
2021-11-24 21:35:05 S 11 16 06.331 -03 18 10.91 V C57