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 23:45:05 s 1 +124289.83 7 +318008.03 8540.0 C57
2021-11-23 23:55:05 S 11 08 39.869 -02 58 51.38 V C57
2021-11-23 23:55:05 s 1 +124005.75 5 +318373.00 4710.0 C57
2021-11-24 00:35:05 S 11 08 54.120 -02 59 26.34 V C57
2021-11-24 00:35:05 s 1 +122865.04 3 +319821.64 4450.0 C57
2021-11-24 01:35:05 S 11 09 14.047 -03 00 28.55 V C57
2021-11-24 01:35:05 s 1 +121141.03 1 +321960.98 4940.0 C57
2021-11-24 02:35:05 S 11 09 35.302 -03 01 10.70 V C57
2021-11-24 02:35:05 s 1 +119401.83 2 +324060.13 3760.0 C57
2021-11-24 02:45:05 S 11 09 38.928 -03 01 25.50 V C57
2021-11-24 02:45:05 s 1 +119110.51 6 +324406.10 5310.0 C57
2021-11-24 03:05:05 S 11 09 45.948 -03 01 40.51 V C57
2021-11-24 03:05:05 s 1 +118526.65 8 +325094.70 4240.0 C57
2021-11-24 03:15:05 S 11 09 48.950 -03 01 53.47 V C57
2021-11-24 03:15:05 s 1 +118234.11 9 +325437.34 1640.0 C57
2021-11-24 03:25:05 S 11 09 52.558 -03 02 01.43 V C57
2021-11-24 03:25:05 s 1 +117941.17 6 +325778.86 7660.0 C57
2021-11-24 03:35:05 S 11 09 55.942 -03 02 10.54 V C57
2021-11-24 03:35:05 s 1 +117647.83 1 +326119.29 2330.0 C57
2021-11-24 03:45:05 S 11 09 59.198 -03 02 16.84 V C57
2021-11-24 03:45:05 s 1 +117354.08 5 +326458.60 5640.0 C57
2021-11-24 03:55:05 S 11 10 03.050 -03 02 29.26 V C57
2021-11-24 03:55:05 s 1 +117059.94 0 +326796.81 7590.0 C57
2021-11-24 04:15:05 S 11 10 10.140 -03 02 45.92 V C57
2021-11-24 04:15:05 s 1 +116470.45 9 +327469.91 7480.0 C57
2021-11-24 04:25:05 S 11 10 13.423 -03 02 49.96 V C57
2021-11-24 04:25:05 s 1 +116175.12 7 +327804.81 5420.0 C57
2021-11-24 05:25:05 S 11 10 33.223 -03 03 36.79 V C57
2021-11-24 05:25:05 s 1 +114394.95 7 +329791.07 5450.0 C57
2021-11-24 05:35:05 S 11 10 37.750 -03 03 50.76 V C57
2021-11-24 05:35:05 s 1 +114096.91 5 +330118.26 4240.0 C57
2021-11-24 05:45:05 S 11 10 41.184 -03 04 09.95 V C57
2021-11-24 05:45:05 s 1 +113798.49 2 +330444.36 1750.0 C57
2021-11-24 06:05:05 S 11 10 47.669 -03 04 24.56 V C57
2021-11-24 06:05:05 s 1 +113200.51 1 +331093.27 2950.0 C57
2021-11-24 06:35:05 S 11 10 58.241 -03 04 46.06 V C57
2021-11-24 06:35:05 s 1 +112300.72 6 +332058.42 280.0 C57
2021-11-24 06:55:05 S 11 11 04.709 -03 05 07.94 V C57
2021-11-24 06:55:05 s 1 +111699.01 3 +332696.39 8930.0 C57
2021-11-24 07:05:05 S 11 11 08.645 -03 05 16.44 V C57
2021-11-24 07:05:05 s 1 +111397.60 5 +333013.74 6400.0 C57
2021-11-24 07:15:05 S 11 11 12.166 -03 05 24.07 V C57
2021-11-24 07:15:05 s 1 +111095.83 0 +333329.99 2640.0 C57
2021-11-24 07:25:05 S 11 11 15.408 -03 05 32.53 V C57
2021-11-24 07:25:05 s 1 +110793.69 2 +333645.16 7660.0 C57
2021-11-24 07:45:05 S 11 11 21.079 -03 05 41.82 V C57
2021-11-24 07:45:05 s 1 +110188.32 7 +334272.23 4050.0 C57
2021-11-24 07:55:05 S 11 11 25.200 -03 05 59.82 V C57
2021-11-24 07:55:05 s 1 +109885.10 5 +334584.13 5430.0 C57
2021-11-24 08:05:05 S 11 11 28.493 -03 06 08.71 V C57