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 16:03:56 S 10 24 24.677 -01 12 17.10 V C57
2021-11-18 16:03:56 s 1 -153359.69 9 +42522.556 2350.0 C57
2021-11-18 16:13:56 S 10 24 28.020 -01 12 26.71 V C57
2021-11-18 16:13:56 s 1 -153019.26 6 +41546.876 100.0 C57
2021-11-18 16:33:56 S 10 24 34.430 -01 12 37.98 V C57
2021-11-18 16:33:56 s 1 -152324.65 2 +39591.794 3620.0 C57
2021-11-18 16:43:56 S 10 24 37.951 -01 12 51.37 V C57
2021-11-18 16:43:56 s 1 -151970.39 3 +38612.425 9090.0 C57
2021-11-18 16:53:56 S 10 24 40.874 -01 13 01.38 V C57
2021-11-18 16:53:56 s 1 -151611.44 7 +37631.860 6860.0 C57
2021-11-18 17:03:56 S 10 24 44.088 -01 13 04.84 V C57
2021-11-18 17:03:56 s 1 -151247.77 3 +36650.115 6760.0 C57
2021-11-18 17:23:56 S 10 24 50.609 -01 13 22.30 V C57
2021-11-18 17:23:56 s 1 -150506.08 3 +34683.163 2410.0 C57
2021-11-18 17:33:56 S 10 24 53.777 -01 13 29.21 V C57
2021-11-18 17:33:56 s 1 -150127.98 4 +33697.994 7850.0 C57
2021-11-18 17:53:56 S 10 25 00.266 -01 13 47.96 V C57
2021-11-18 17:53:56 s 1 -149357.07 0 +31724.364 3200.0 C57
2021-11-18 18:33:56 S 10 25 13.265 -01 14 24.40 V C57
2021-11-18 18:33:56 s 1 -147755.18 8 +27764.534 7470.0 C57
2021-11-18 18:53:56 S 10 25 19.490 -01 14 34.37 V C57
2021-11-18 18:53:56 s 1 -146923.52 3 +25778.690 3850.0 C57
2021-11-18 19:13:56 S 10 25 25.781 -01 14 50.24 V C57
2021-11-18 19:13:56 s 1 -146070.89 9 +23789.147 1330.0 C57
2021-11-18 19:23:56 S 10 25 28.958 -01 15 02.05 V C57
2021-11-18 19:23:56 s 1 -145636.61 4 +22793.053 5060.0 C57
2021-11-18 19:33:56 S 10 25 32.662 -01 15 13.36 V C57
2021-11-18 19:33:56 s 1 -145196.95 1 +21796.111 8580.0 C57
2021-11-18 19:43:56 S 10 25 35.479 -01 15 18.47 V C57
2021-11-18 19:43:56 s 1 -144751.86 3 +20798.350 1690.0 C57
2021-11-18 19:53:56 S 10 25 38.887 -01 15 28.76 V C57
2021-11-18 19:53:56 s 1 -144301.30 4 +19799.797 4240.0 C57
2021-11-18 20:43:56 S 10 25 54.665 -01 16 10.99 V C57
2021-11-18 20:43:56 s 1 -141964.74 4 +14796.198 2390.0 C57
2021-11-18 20:53:56 S 10 25 57.758 -01 16 16.75 V C57
2021-11-18 20:53:56 s 1 -141480.33 5 +13793.530 7850.0 C57
2021-11-18 21:33:56 S 10 26 10.598 -01 16 45.08 V C57
2021-11-18 21:33:56 s 1 -139484.03 3 + 9777.488 9760.0 C57
2021-11-18 21:53:56 S 10 26 17.280 -01 17 03.84 V C57
2021-11-18 21:53:56 s 1 -138449.95 7 + 7766.755 6140.0 C57
2021-11-18 22:03:56 S 10 26 20.796 -01 17 11.58 V C57
2021-11-18 22:03:56 s 1 -137923.75 4 + 6760.845 5030.0 C57
2021-11-18 22:23:56 S 10 26 26.642 -01 17 32.24 V C57
2021-11-18 22:23:56 s 1 -136852.74 9 + 4748.142 3220.0 C57
2021-11-18 22:33:56 S 10 26 30.482 -01 17 40.20 V C57
2021-11-18 22:33:56 s 1 -136307.83 8 + 3741.434 2130.0 C57
2021-11-18 22:53:56 S 10 26 36.734 -01 17 56.33 V C57
2021-11-18 22:53:56 s 1 -135198.92 5 + 1727.525 8630.0 C57
2021-11-18 23:13:56 S 10 26 43.116 -01 18 10.55 V C57
2021-11-18 23:13:56 s 1 -134064.18 7 - 286.735 8670.0 C57