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
2021-11-17 04:23:56 S 10 13 01.783 -00 41 20.80 V C57
2021-11-17 04:23:56 s 1 -161125.01 5 +214821.91 8280.0 C57
2021-11-17 04:33:56 S 10 13 05.446 -00 41 35.09 V C57
2021-11-17 04:33:56 s 1 -161276.45 4 +214185.94 2930.0 C57
2021-11-17 04:43:56 S 10 13 08.081 -00 41 40.56 V C57
2021-11-17 04:43:56 s 1 -161426.78 6 +213548.49 3180.0 C57
2021-11-17 04:53:56 S 10 13 11.770 -00 41 47.69 V C57
2021-11-17 04:53:56 s 1 -161576.00 4 +212909.57 9030.0 C57
2021-11-17 05:03:56 S 10 13 14.621 -00 41 56.11 V C57
2021-11-17 05:03:56 s 1 -161724.10 3 +212269.18 430.0 C57
2021-11-17 05:13:56 S 10 13 18.103 -00 42 15.01 V C57
2021-11-17 05:13:56 s 1 -161871.07 7 +211627.30 7380.0 C57
2021-11-17 05:23:56 S 10 13 21.338 -00 42 18.04 V C57
2021-11-17 05:23:56 s 1 -162016.92 0 +210983.94 9850.0 C57
2021-11-17 05:43:56 S 10 13 27.384 -00 42 34.09 V C57
2021-11-17 05:43:56 s 1 -162305.18 9 +209692.77 1250.0 C57
2021-11-17 05:53:56 S 10 13 30.924 -00 42 37.76 V C57
2021-11-17 05:53:56 s 1 -162447.60 3 +209044.96 130.0 C57
2021-11-17 06:03:56 S 10 13 34.001 -00 42 49.97 V C57
2021-11-17 06:03:56 s 1 -162588.86 2 +208395.65 4450.0 C57
2021-11-17 06:13:56 S 10 13 37.229 -00 43 02.32 V C57
2021-11-17 06:13:56 s 1 -162728.95 9 +207744.86 4170.0 C57
2021-11-17 06:23:56 S 10 13 40.080 -00 43 07.54 V C57
2021-11-17 06:23:56 s 1 -162867.88 9 +207092.56 9270.0 C57
2021-11-17 06:33:56 S 10 13 43.882 -00 43 21.97 V C57
2021-11-17 06:33:56 s 1 -163005.64 5 +206438.78 9720.0 C57
2021-11-17 06:43:56 S 10 13 46.567 -00 43 27.62 V C57
2021-11-17 06:43:56 s 1 -163142.22 1 +205783.50 5510.0 C57
2021-11-17 06:53:56 S 10 13 49.925 -00 43 35.22 V C57
2021-11-17 06:53:56 s 1 -163277.61 1 +205126.71 6600.0 C57
2021-11-17 07:03:56 S 10 13 52.949 -00 43 45.88 V C57
2021-11-17 07:03:56 s 1 -163411.80 7 +204468.43 2980.0 C57
2021-11-17 07:13:56 S 10 13 55.834 -00 43 47.75 V C57
2021-11-17 07:13:56 s 1 -163544.80 5 +203808.64 4630.0 C57
2021-11-17 07:23:56 S 10 13 59.707 -00 44 04.24 V C57
2021-11-17 07:23:56 s 1 -163676.59 7 +203147.35 1500.0 C57
2021-11-17 07:43:56 S 10 14 05.722 -00 44 15.14 V C57
2021-11-17 07:43:56 s 1 -163936.53 8 +201820.23 860.0 C57
2021-11-17 08:03:56 S 10 14 11.542 -00 44 37.46 V C57
2021-11-17 08:03:56 s 1 -164191.57 8 +200487.08 860.0 C57
2021-11-17 08:13:56 S 10 14 15.379 -00 44 48.44 V C57
2021-11-17 08:13:56 s 1 -164317.24 3 +199818.22 3540.0 C57
2021-11-17 08:23:56 S 10 14 18.091 -00 44 54.71 V C57
2021-11-17 08:23:56 s 1 -164441.66 3 +199147.86 1300.0 C57
2021-11-17 08:33:56 S 10 14 21.504 -00 45 02.20 V C57
2021-11-17 08:33:56 s 1 -164564.83 1 +198475.97 4130.0 C57
2021-11-17 08:43:56 S 10 14 24.979 -00 45 14.26 V C57
2021-11-17 08:43:56 s 1 -164686.73 9 +197802.56 1980.0 C57
2021-11-17 09:03:56 S 10 14 31.418 -00 45 29.84 V C57
2021-11-17 09:03:56 s 1 -164926.75 2 +196451.16 2680.0 C57