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 08:05:05 s 1 +109581.52 4 +334894.95 5620.0 C57
2021-11-24 08:55:05 S 11 11 46.034 -03 07 01.34 V C57
2021-11-24 08:55:05 s 1 +108058.30 7 +336432.74 8780.0 C57
2021-11-24 09:05:05 S 11 11 49.066 -03 06 59.51 V C57
2021-11-24 09:05:05 s 1 +107752.61 1 +336737.05 1900.0 C57
2021-11-24 09:15:05 S 11 11 53.165 -03 07 15.06 V C57
2021-11-24 09:15:05 s 1 +107446.56 9 +337040.28 3850.0 C57
2021-11-24 09:45:05 S 11 12 03.070 -03 07 37.92 V C57
2021-11-24 09:45:05 s 1 +106526.37 2 +337943.47 2830.0 C57
2021-11-24 10:05:05 S 11 12 09.204 -03 07 44.00 V C57
2021-11-24 10:05:05 s 1 +105911.20 1 +338540.20 6470.0 C57
2021-11-24 10:35:05 S 11 12 20.501 -03 08 17.77 V C57
2021-11-24 10:35:05 s 1 +104985.91 2 +339427.21 8490.0 C57
2021-11-24 10:55:05 S 11 12 27.384 -03 08 41.82 V C57
2021-11-24 10:55:05 s 1 +104367.38 2 +340013.17 960.0 C57
2021-11-24 11:05:05 S 11 12 30.605 -03 08 46.50 V C57
2021-11-24 11:05:05 s 1 +104057.62 1 +340304.54 550.0 C57
2021-11-24 11:15:05 S 11 12 34.344 -03 08 59.82 V C57
2021-11-24 11:15:05 s 1 +103747.53 1 +340594.83 9040.0 C57
2021-11-24 11:25:05 S 11 12 37.534 -03 09 04.07 V C57
2021-11-24 11:25:05 s 1 +103437.11 3 +340884.05 6450.0 C57
2021-11-24 11:35:05 S 11 12 40.814 -03 09 12.20 V C57
2021-11-24 11:35:05 s 1 +103126.36 9 +341172.20 2780.0 C57
2021-11-24 11:45:05 S 11 12 44.196 -03 09 23.47 V C57
2021-11-24 11:45:05 s 1 +102815.30 0 +341459.28 8040.0 C57
2021-11-24 12:05:05 S 11 12 50.726 -03 09 40.39 V C57
2021-11-24 12:05:05 s 1 +102192.19 5 +342030.21 5350.0 C57
2021-11-24 12:15:05 S 11 12 54.022 -03 09 52.96 V C57
2021-11-24 12:15:05 s 1 +101880.16 1 +342314.08 7410.0 C57
2021-11-24 12:35:05 S 11 13 01.375 -03 10 06.82 V C57
2021-11-24 12:35:05 s 1 +101255.13 8 +342878.59 8380.0 C57
2021-11-24 12:45:05 S 11 13 04.721 -03 10 18.88 V C57
2021-11-24 12:45:05 s 1 +100942.15 2 +343159.25 7300.0 C57
2021-11-24 12:55:05 S 11 13 08.244 -03 10 24.20 V C57
2021-11-24 12:55:05 s 1 +100628.85 2 +343438.84 5190.0 C57
2021-11-24 13:05:05 S 11 13 12.065 -03 10 36.44 V C57
2021-11-24 13:05:05 s 1 +100315.23 8 +343717.36 2040.0 C57
2021-11-24 13:15:05 S 11 13 14.834 -03 10 42.82 V C57
2021-11-24 13:15:05 s 1 +100001.31 3 +343994.81 7860.0 C57
2021-11-24 13:45:05 S 11 13 25.829 -03 11 06.79 V C57
2021-11-24 13:45:05 s 1 +99057.682 0 +344820.78 9230.0 C57
2021-11-24 14:25:01 C 11 12 34.59 -03 13 19.3 V T05
2021-11-24 14:29:39 C 11 12 36.15 -03 13 23.4 V T05
2021-11-24 14:35:05 S 11 13 42.329 -03 11 50.75 V C57
2021-11-24 14:35:05 s 1 +97478.864 0 +346176.13 8150.0 C57
2021-11-24 14:38:16 C 11 12 39.03 -03 13 30.9 V T05
2021-11-24 14:52:49 C 11 12 43.91 -03 13 43.2 V T05
2021-11-24 14:55:05 S 11 13 49.838 -03 12 14.40 V C57
2021-11-24 14:55:05 s 1 +96845.234 0 +346710.84 820.0 C57
2021-11-24 15:05:05 S 11 13 52.500 -03 12 17.46 V C57