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 21:35:05 s 1 +83938.118 0 +356520.57 3990.0 C57
2021-11-24 21:45:05 S 11 16 09.730 -03 18 18.40 V C57
2021-11-24 21:45:05 s 1 +83610.102 0 +356744.39 4200.0 C57
2021-11-24 21:55:05 S 11 16 13.027 -03 18 25.52 V C57
2021-11-24 21:55:05 s 1 +83281.842 0 +356967.16 3640.0 C57
2021-11-24 22:15:05 S 11 16 20.412 -03 18 45.86 V C57
2021-11-24 22:15:05 s 1 +82624.601 0 +357409.60 240.0 C57
2021-11-24 22:25:05 S 11 16 23.194 -03 18 58.97 V C57
2021-11-24 22:25:05 s 1 +82295.621 0 +357629.27 7410.0 C57
2021-11-24 22:55:05 S 11 16 33.526 -03 19 14.27 V C57
2021-11-24 22:55:05 s 1 +81307.260 0 +358282.05 4430.0 C57
2021-11-24 23:05:05 S 11 16 37.466 -03 19 30.22 V C57
2021-11-24 23:05:05 s 1 +80977.337 0 +358497.57 8620.0 C57
2021-11-24 23:15:05 S 11 16 41.388 -03 19 31.84 V C57
2021-11-24 23:15:05 s 1 +80647.181 0 +358712.06 2090.0 C57
2021-11-24 23:55:05 S 11 16 54.173 -03 20 09.64 V C57
2021-11-24 23:55:05 s 1 +79324.253 0 +359559.67 8720.0 C57
2021-11-25 00:05:05 S 11 16 57.893 -03 20 19.97 V C57
2021-11-25 00:05:05 s 1 +78992.951 0 +359768.99 8590.0 C57
2021-11-25 00:35:05 S 11 17 07.608 -03 20 47.33 V C57
2021-11-25 00:35:05 s 1 +77997.696 0 +360390.77 4010.0 C57
2021-11-25 01:05:05 S 11 17 18.134 -03 21 12.13 V C57
2021-11-25 01:05:05 s 1 +77000.444 0 +361003.27 3210.0 C57
2021-11-25 01:25:05 S 11 17 24.929 -03 21 29.48 V C57
2021-11-25 01:25:05 s 1 +76334.515 0 +361406.45 2610.0 C57
2021-11-25 01:35:05 S 11 17 28.721 -03 21 38.99 V C57
2021-11-25 01:35:05 s 1 +76001.225 0 +361606.50 6310.0 C57
2021-11-25 01:55:05 S 11 17 35.364 -03 21 58.28 V C57
2021-11-25 01:55:05 s 1 +75334.003 0 +362003.52 1720.0 C57
2021-11-25 03:05:05 S 11 17 58.831 -03 23 02.51 V C57
2021-11-25 03:05:05 s 1 +72992.092 0 +363360.73 240.0 C57
2021-11-25 03:55:05 S 11 18 16.433 -03 23 44.45 V C57
2021-11-25 03:55:05 s 1 +71313.141 0 +364299.43 360.0 C57
2021-11-25 04:15:05 S 11 18 23.460 -03 23 56.80 V C57
2021-11-25 04:15:05 s 1 +70640.162 0 +364667.75 8160.0 C57
2021-11-25 04:35:05 S 11 18 29.592 -03 24 20.77 V C57
2021-11-25 04:35:05 s 1 +69966.398 0 +365031.98 3580.0 C57
2021-11-25 05:05:05 S 11 18 40.370 -03 24 44.86 V C57
2021-11-25 05:05:05 s 1 +68954.297 0 +365570.67 7320.0 C57
2021-11-25 05:15:05 S 11 18 43.615 -03 24 59.62 V C57
2021-11-25 05:15:05 s 1 +68616.547 0 +365748.19 7420.0 C57
2021-11-25 05:25:05 S 11 18 46.656 -03 25 03.11 V C57
2021-11-25 05:25:05 s 1 +68278.608 0 +365924.70 6950.0 C57
2021-11-25 05:35:05 S 11 18 50.563 -03 25 14.52 V C57
2021-11-25 05:35:05 s 1 +67940.480 0 +366100.18 5910.0 C57
2021-11-25 05:45:05 S 11 18 53.664 -03 25 17.58 V C57
2021-11-25 05:45:05 s 1 +67602.164 0 +366274.65 4320.0 C57
2021-11-25 06:05:05 S 11 19 00.322 -03 25 42.10 V C57
2021-11-25 06:05:05 s 1 +66924.976 0 +366620.52 9460.0 C57
2021-11-25 06:15:05 S 11 19 04.193 -03 25 46.67 V C57