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
2021-11-26 04:05:05 s 1 +21006.387 0 +380550.66 8450.0 C57
2021-11-26 04:15:05 S 11 26 31.824 -03 45 07.09 V C57
2021-11-26 04:15:05 s 1 +20652.332 0 +380589.88 9260.0 C57
2021-11-26 04:45:05 S 11 26 41.506 -03 45 36.50 V C57
2021-11-26 04:45:05 s 1 +19589.874 0 +380701.59 1870.0 C57
2021-11-26 06:05:05 S 11 27 09.478 -03 46 49.73 V C57
2021-11-26 06:05:05 s 1 +16754.663 0 +380955.85 9550.0 C57
2021-11-26 06:35:05 S 11 27 18.790 -03 47 05.75 V C57
2021-11-26 06:35:05 s 1 +15690.787 0 +381034.84 2410.0 C57
2021-11-26 07:35:05 S 11 27 39.317 -03 47 57.73 V C57
2021-11-26 07:35:05 s 1 +13562.078 0 +381166.05 7550.0 C57
2021-11-26 07:45:05 S 11 27 42.715 -03 48 10.44 V C57
2021-11-26 07:45:05 s 1 +13207.180 0 +381184.45 8280.0 C57
2021-11-26 08:15:05 S 11 27 53.105 -03 48 37.08 V C57
2021-11-26 08:15:05 s 1 +12142.312 0 +381233.71 220.0 C57
2021-11-26 08:55:05 S 11 28 06.708 -03 49 16.79 V C57
2021-11-26 08:55:05 s 1 +10722.116 0 +381285.50 2010.0 C57
2021-11-26 09:15:05 S 11 28 13.426 -03 49 32.09 V C57
2021-11-26 09:15:05 s 1 +10011.875 0 +381305.45 2500.0 C57
2021-11-26 11:25:05 S 11 28 56.467 -03 51 24.66 V C57
2021-11-26 11:45:05 S 11 29 03.593 -03 51 47.66 V C57
2021-11-26 11:55:05 S 11 29 07.529 -03 51 50.00 V C57
2021-11-26 12:05:05 S 11 29 10.507 -03 52 02.89 V C57
2021-11-26 12:15:05 S 11 29 14.191 -03 52 13.01 V C57
2021-11-26 12:35:05 S 11 29 20.278 -03 52 19.78 V C57
2021-11-26 12:45:05 S 11 29 23.707 -03 52 33.78 V C57
2021-11-26 13:15:05 S 11 29 33.394 -03 53 00.46 V C57
2021-11-26 13:35:05 S 11 29 40.898 -03 53 24.29 V C57
2021-11-26 14:55:05 S 11 30 07.562 -03 54 19.30 V C57
2021-11-26 15:05:05 S 11 30 10.836 -03 54 44.21 V C57
2021-11-26 15:25:05 S 11 30 17.599 -03 54 47.02 V C57
2021-11-26 15:35:05 S 11 30 20.940 -03 55 04.84 V C57
2021-11-26 15:45:05 S 11 30 24.034 -03 55 09.08 V C57
2021-11-26 16:35:05 S 11 30 40.798 -03 55 56.86 V C57
2021-11-26 16:45:05 S 11 30 44.112 -03 55 59.70 V C57
2021-11-26 16:55:05 S 11 30 47.544 -03 56 08.45 V C57
2021-11-26 17:05:05 S 11 30 51.206 -03 56 23.93 V C57
2021-11-26 17:15:05 S 11 30 54.710 -03 56 26.41 V C57
2021-11-26 17:25:05 S 11 30 57.593 -03 56 38.18 V C57
2021-11-26 17:35:05 S 11 31 01.003 -03 56 50.24 V C57
2021-11-26 17:45:05 S 11 31 04.466 -03 56 59.14 V C57
2021-11-26 17:55:05 S 11 31 07.822 -03 57 05.51 V C57
2021-11-26 18:05:05 S 11 31 11.609 -03 57 15.08 V C57
2021-11-26 18:25:05 S 11 31 18.295 -03 57 29.16 V C57
2021-11-26 18:45:05 S 11 31 24.595 -03 57 42.55 V C57
2021-11-26 18:45:05 s 1 -10234.911 0 +380209.82 9170.0 C57
2021-11-26 20:25:05 S 11 31 57.662 -03 59 15.07 V C57
2021-11-26 20:25:05 s 1 -13781.379 0 +379684.12 2410.0 C57
2021-11-26 20:35:05 S 11 32 02.278 -03 59 21.05 V C57
2021-11-26 20:35:05 s 1 -14135.810 0 +379626.06 9010.0 C57