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
2021-11-23 08:55:05 s 1 +147562.03 0 +280906.81 4920.0 C57
2021-11-23 09:05:05 S 11 03 32.112 -02 45 37.15 V C57
2021-11-23 09:05:05 s 1 +147325.57 8 +281375.77 5990.0 C57
2021-11-23 09:15:05 S 11 03 36.161 -02 45 44.42 V C57
2021-11-23 09:15:05 s 1 +147088.48 4 +281843.51 4820.0 C57
2021-11-23 09:25:05 S 11 03 39.182 -02 45 55.37 V C57
2021-11-23 09:25:05 s 1 +146850.75 3 +282310.03 1420.0 C57
2021-11-23 09:35:05 S 11 03 43.061 -02 46 00.98 V C57
2021-11-23 09:35:05 s 1 +146612.38 7 +282775.35 5790.0 C57
2021-11-23 10:05:05 S 11 03 53.129 -02 46 33.20 V C57
2021-11-23 10:05:05 s 1 +145893.50 2 +284164.01 5700.0 C57
2021-11-23 10:25:05 S 11 04 00.686 -02 46 49.87 V C57
2021-11-23 10:25:05 s 1 +145411.11 8 +285083.74 4710.0 C57
2021-11-23 11:15:05 S 11 04 17.050 -02 47 30.84 V C57
2021-11-23 11:15:05 s 1 +144194.36 5 +287361.97 9580.0 C57
2021-11-23 11:25:05 S 11 04 21.367 -02 47 44.23 V C57
2021-11-23 11:25:05 s 1 +143949.18 5 +287814.01 170.0 C57
2021-11-23 11:35:05 S 11 04 24.384 -02 47 49.88 V C57
2021-11-23 11:35:05 s 1 +143703.40 1 +288264.85 8660.0 C57
2021-11-23 12:45:05 S 11 04 48.931 -02 48 51.70 V C57
2021-11-23 12:45:05 s 1 +141966.22 4 +291387.23 9910.0 C57
2021-11-23 12:55:05 S 11 04 52.294 -02 49 09.62 V C57
2021-11-23 12:55:05 s 1 +141715.70 1 +291828.51 1890.0 C57
2021-11-23 13:45:05 S 11 05 10.140 -02 49 48.72 V C57
2021-11-23 13:45:05 s 1 +140454.41 9 +294017.09 1650.0 C57
2021-11-23 13:55:05 S 11 05 13.066 -02 49 58.69 V C57
2021-11-23 13:55:05 s 1 +140200.44 5 +294451.26 1640.0 C57
2021-11-23 14:05:05 S 11 05 16.423 -02 50 10.43 V C57
2021-11-23 14:05:05 s 1 +139945.90 5 +294884.23 9650.0 C57
2021-11-23 14:15:05 S 11 05 20.138 -02 50 11.69 V C57
2021-11-23 14:15:05 s 1 +139690.80 1 +295316.03 5710.0 C57
2021-11-23 14:25:05 S 11 05 23.093 -02 50 22.13 V C57
2021-11-23 14:25:05 s 1 +139435.13 5 +295746.64 9810.0 C57
2021-11-23 14:35:05 S 11 05 27.134 -02 50 34.15 V C57
2021-11-23 14:35:05 s 1 +139178.90 9 +296176.08 1970.0 C57
2021-11-23 14:55:05 S 11 05 33.905 -02 50 51.07 V C57
2021-11-23 14:55:05 s 1 +138664.78 9 +297031.41 500.0 C57
2021-11-23 15:05:05 S 11 05 37.375 -02 51 03.89 V C57
2021-11-23 15:05:05 s 1 +138406.89 9 +297457.32 6890.0 C57
2021-11-23 16:05:05 S 11 05 57.374 -02 51 48.74 V C57
2021-11-23 16:05:05 s 1 +136848.08 4 +299988.08 5420.0 C57
2021-11-23 16:15:05 S 11 06 00.919 -02 51 56.48 V C57
2021-11-23 16:15:05 s 1 +136586.39 1 +300405.77 8630.0 C57
2021-11-23 16:35:05 S 11 06 07.783 -02 52 18.12 V C57
2021-11-23 16:35:05 s 1 +136061.40 4 +301237.66 9500.0 C57
2021-11-23 16:55:05 S 11 06 15.470 -02 52 43.79 V C57
2021-11-23 16:55:05 s 1 +135534.29 8 +302064.89 3040.0 C57
2021-11-23 17:15:05 S 11 06 21.998 -02 52 55.16 V C57
2021-11-23 17:15:05 s 1 +135005.09 1 +302887.45 9310.0 C57
2021-11-23 17:25:05 S 11 06 25.795 -02 53 02.83 V C57