IAA RAS IAA Minor Planet Database

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 02:35:05 S 11 01 16.699 -02 39 41.98 – V C57
2021-11-23 02:35:05 s 1 +156044.02 0 +262172.93 9890.0 – C57
2021-11-23 03:05:05 S 11 01 27.806 -02 40 15.42 – V C57
2021-11-23 03:05:05 s 1 +155411.93 6 +263717.45 4340.0 – C57
2021-11-23 03:25:05 S 11 01 35.616 -02 40 34.57 – V C57
2021-11-23 03:25:05 s 1 +154986.79 8 +264740.81 4110.0 – C57
2021-11-23 04:15:05 S 11 01 51.706 -02 41 21.62 – V C57
2021-11-23 04:15:05 s 1 +153911.02 3 +267277.21 3030.0 – C57
2021-11-23 04:45:05 S 11 02 03.038 -02 41 47.65 – V C57
2021-11-23 04:45:05 s 1 +153256.81 9 +268784.01 9650.0 – C57
2021-11-23 04:48:20 C 11 01 09.45 -02 44 39.1 – V K87
2021-11-23 04:55:05 S 11 02 06.221 -02 41 57.95 – V C57
2021-11-23 04:55:05 s 1 +153037.31 4 +269283.77 140.0 – C57
2021-11-23 04:56:34 C 11 01 12.24 -02 44 46.3 – V K87
2021-11-23 05:04:45 C 11 01 14.96 -02 44 52.9 – V K87
2021-11-23 05:15:05 S 11 02 13.054 -02 42 20.88 – V C57
2021-11-23 05:15:05 s 1 +152596.16 6 +270279.56 3600.0 – C57
2021-11-23 05:25:05 S 11 02 16.248 -02 42 18.86 – V C57
2021-11-23 05:25:05 s 1 +152374.52 9 +270775.59 6600.0 – C57
2021-11-23 05:35:05 S 11 02 19.886 -02 42 30.53 – V C57
2021-11-23 05:35:05 s 1 +152152.18 8 +271270.37 7130.0 – C57
2021-11-23 05:45:05 S 11 02 22.807 -02 42 38.63 – V C57
2021-11-23 05:45:05 s 1 +151929.14 5 +271763.91 5190.0 – C57
2021-11-23 06:05:05 S 11 02 30.024 -02 42 57.46 – V C57
2021-11-23 06:05:05 s 1 +151480.96 9 +272747.27 3970.0 – C57
2021-11-23 06:15:05 S 11 02 33.466 -02 43 05.23 – V C57
2021-11-23 06:15:05 s 1 +151255.84 1 +273237.09 4710.0 – C57
2021-11-23 06:25:05 S 11 02 36.458 -02 43 16.82 – V C57
2021-11-23 06:25:05 s 1 +151030.02 3 +273725.67 3030.0 – C57
2021-11-23 06:45:05 S 11 02 43.375 -02 43 40.98 – V C57
2021-11-23 06:45:05 s 1 +150576.33 2 +274699.13 2470.0 – C57
2021-11-23 06:55:05 S 11 02 47.234 -02 43 41.59 – V C57
2021-11-23 06:55:05 s 1 +150348.46 5 +275184.01 3600.0 – C57
2021-11-23 07:25:05 S 11 02 57.538 -02 44 06.90 – V C57
2021-11-23 07:25:05 s 1 +149660.80 8 +276631.26 2790.0 – C57
2021-11-23 07:35:05 S 11 03 01.253 -02 44 15.43 – V C57
2021-11-23 07:35:05 s 1 +149430.24 8 +277111.22 4480.0 – C57
2021-11-23 07:45:05 S 11 03 04.742 -02 44 33.76 – V C57
2021-11-23 07:45:05 s 1 +149199.02 2 +277589.95 3840.0 – C57
2021-11-23 07:55:05 S 11 03 08.011 -02 44 29.04 – V C57
2021-11-23 07:55:05 s 1 +148967.13 3 +278067.46 880.0 – C57
2021-11-23 08:15:05 S 11 03 15.468 -02 44 50.82 – V C57
2021-11-23 08:15:05 s 1 +148501.37 6 +279018.79 8030.0 – C57
2021-11-23 08:25:05 S 11 03 18.528 -02 44 56.58 – V C57
2021-11-23 08:25:05 s 1 +148267.51 5 +279492.63 8170.0 – C57
2021-11-23 08:35:05 S 11 03 22.433 -02 45 11.38 – V C57
2021-11-23 08:35:05 s 1 +148033.00 1 +279965.24 6020.0 – C57
2021-11-23 08:45:05 S 11 03 26.090 -02 45 23.58 – V C57
2021-11-23 08:45:05 s 1 +147797.83 9 +280436.63 1600.0 – C57
2021-11-23 08:55:05 S 11 03 28.942 -02 45 30.10 – V C57