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
2021-11-18 23:33:56 S 10 26 49.234 -01 18 30.46 V C57
2021-11-18 23:33:56 s 1 -132903.17 3 - 2300.957 650.0 C57
2021-11-18 23:43:56 S 10 26 53.167 -01 18 37.98 V C57
2021-11-18 23:43:56 s 1 -132312.66 9 - 3307.928 9350.0 C57
2021-11-19 00:03:56 S 10 26 59.470 -01 18 48.60 V C57
2021-11-19 00:03:56 s 1 -131111.37 9 - 5321.326 1170.0 C57
2021-11-19 00:23:56 S 10 27 05.849 -01 19 06.53 V C57
2021-11-19 00:23:56 s 1 -129882.65 7 - 7333.630 800.0 C57
2021-11-20 14:39:35 C 10 40 07.39 -01 50 26.8 V T05
2021-11-20 14:45:30 C 10 40 09.36 -01 50 32.4 V T05
2021-11-20 14:58:30 C 10 40 13.68 -01 50 43.7 V T05
2021-11-20 15:06:26 C 10 40 16.34 -01 50 51.1 V T05
2021-11-20 15:16:26 C 10 40 19.68 -01 50 59.9 V T05
2021-11-20 15:22:23 C 10 40 21.66 -01 51 04.9 V T05
2021-11-20 15:27:04 C 10 40 23.21 -01 51 08.9 V T05
2021-11-20 15:43:03 C 10 40 28.49 -01 51 22.8 V T05
2021-11-21 13:45:05 S 10 48 23.580 -02 07 28.16 V C57
2021-11-21 13:45:05 s 1 +175156.25 7 +114290.94 8270.0 C57
2021-11-21 13:55:05 S 10 48 27.396 -02 07 45.05 V C57
2021-11-21 13:55:05 s 1 +175249.41 2 +115124.04 160.0 C57
2021-11-21 14:05:05 S 10 48 30.775 -02 07 42.92 V C57
2021-11-21 14:05:05 s 1 +175340.16 8 +115955.58 3340.0 C57
2021-11-21 17:45:05 S 10 49 48.881 -02 10 56.28 V C57
2021-11-21 17:45:05 s 1 +176760.10 0 +133852.40 820.0 C57
2021-11-21 18:05:05 S 10 49 55.236 -02 11 12.41 V C57
2021-11-21 18:05:05 s 1 +176837.29 1 +135441.79 8900.0 C57
2021-11-21 18:15:05 S 10 49 59.654 -02 11 21.48 V C57
2021-11-21 18:15:05 s 1 +176872.81 0 +136234.15 1800.0 C57
2021-11-21 18:35:05 S 10 50 05.712 -02 11 33.79 V C57
2021-11-21 18:35:05 s 1 +176937.75 4 +137814.18 5560.0 C57
2021-11-21 18:55:05 S 10 50 13.411 -02 11 52.91 V C57
2021-11-21 18:55:05 s 1 +176994.65 8 +139387.98 230.0 C57
2021-11-21 19:05:05 S 10 50 16.466 -02 12 02.41 V C57
2021-11-21 19:05:05 s 1 +177020.12 5 +140172.54 6770.0 C57
2021-11-21 20:25:05 S 10 50 44.921 -02 13 09.55 V C57
2021-11-21 20:25:05 s 1 +177153.79 4 +146393.13 5770.0 C57
2021-11-21 20:45:05 S 10 50 51.886 -02 13 23.02 V C57
2021-11-21 20:45:05 s 1 +177168.16 9 +147932.78 6720.0 C57
2021-11-21 21:15:05 S 10 51 02.335 -02 13 58.94 V C57
2021-11-21 21:15:05 s 1 +177175.81 6 +150230.66 7890.0 C57
2021-11-21 21:35:05 S 10 51 09.806 -02 14 12.70 V C57
2021-11-21 21:35:05 s 1 +177171.76 3 +151754.88 2300.0 C57
2021-11-21 21:45:05 S 10 51 12.456 -02 14 27.46 V C57
2021-11-21 21:45:05 s 1 +177167.02 3 +152514.68 9710.0 C57
2021-11-21 21:55:05 S 10 51 16.426 -02 14 29.40 V C57
2021-11-21 21:55:05 s 1 +177160.48 8 +153272.94 650.0 C57
2021-11-21 22:05:05 S 10 51 19.817 -02 14 39.41 V C57
2021-11-21 22:05:05 s 1 +177152.16 9 +154029.67 5150.0 C57
2021-11-21 22:15:05 S 10 51 23.568 -02 14 47.51 V C57
2021-11-21 22:15:05 s 1 +177142.07 6 +154784.86 3240.0 C57