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 08:23:56 S 10 21 57.840 -01 05 48.23 V C57
2021-11-18 08:23:56 s 1 -164672.37 3 +85856.169 7150.0 C57
2021-11-18 08:33:56 S 10 22 00.847 -01 05 57.05 V C57
2021-11-18 08:33:56 s 1 -164506.45 6 +84949.152 8780.0 C57
2021-11-18 09:13:56 S 10 22 14.282 -01 06 33.30 V C57
2021-11-18 09:13:56 s 1 -163810.94 8 +81304.752 3500.0 C57
2021-11-18 09:23:56 S 10 22 16.766 -01 06 37.94 V C57
2021-11-18 09:23:56 s 1 -163628.98 7 +80389.587 3760.0 C57
2021-11-18 10:03:56 S 10 22 29.974 -01 07 18.44 V C57
2021-11-18 10:03:56 s 1 -162868.06 1 +76712.790 8420.0 C57
2021-11-18 10:23:56 S 10 22 36.338 -01 07 29.60 V C57
2021-11-18 10:23:56 s 1 -162467.38 5 +74864.774 8550.0 C57
2021-11-18 10:43:56 S 10 22 42.538 -01 07 54.62 V C57
2021-11-18 10:43:56 s 1 -162052.95 4 +73010.399 6190.0 C57
2021-11-18 11:13:56 S 10 22 52.056 -01 08 14.93 V C57
2021-11-18 11:13:56 s 1 -161405.04 0 +70217.009 7440.0 C57
2021-11-18 11:23:56 S 10 22 55.337 -01 08 23.64 V C57
2021-11-18 11:23:56 s 1 -161181.95 3 +69282.749 730.0 C57
2021-11-18 11:33:56 S 10 22 58.793 -01 08 27.96 V C57
2021-11-18 11:33:56 s 1 -160955.26 2 +68346.934 290.0 C57
2021-11-18 11:53:56 S 10 23 05.369 -01 08 47.33 V C57
2021-11-18 11:53:56 s 1 -160490.94 9 +66470.667 7760.0 C57
2021-11-18 12:03:56 S 10 23 08.078 -01 08 55.57 V C57
2021-11-18 12:03:56 s 1 -160253.27 0 +65530.229 5460.0 C57
2021-11-18 12:13:56 S 10 23 11.114 -01 09 03.53 V C57
2021-11-18 12:13:56 s 1 -160011.87 0 +64588.264 8990.0 C57
2021-11-18 12:43:56 S 10 23 21.422 -01 09 26.82 V C57
2021-11-18 12:43:56 s 1 -159265.04 2 +61753.284 3480.0 C57
2021-11-18 12:53:56 S 10 23 24.238 -01 09 35.75 V C57
2021-11-18 12:53:56 s 1 -159008.45 4 +60805.289 9240.0 C57
2021-11-18 13:53:56 S 10 23 43.370 -01 10 29.93 V C57
2021-11-18 13:53:56 s 1 -157386.39 7 +55086.434 690.0 C57
2021-11-18 14:03:56 S 10 23 46.505 -01 10 41.34 V C57
2021-11-18 14:03:56 s 1 -157102.02 1 +54128.230 860.0 C57
2021-11-18 14:13:56 S 10 23 49.908 -01 10 46.02 V C57
2021-11-18 14:13:56 s 1 -156813.54 5 +53168.607 5460.0 C57
2021-11-18 14:53:56 S 10 24 02.518 -01 11 23.82 V C57
2021-11-18 14:53:56 s 1 -155617.94 8 +49316.160 5730.0 C57
2021-11-18 15:03:56 S 10 24 05.573 -01 11 21.26 V C57
2021-11-18 15:03:56 s 1 -155308.45 1 +48349.618 620.0 C57
2021-11-18 15:13:56 S 10 24 09.278 -01 11 31.24 V C57
2021-11-18 15:13:56 s 1 -154994.64 6 +47381.729 9180.0 C57
2021-11-18 15:23:56 S 10 24 12.408 -01 11 45.17 V C57
2021-11-18 15:23:56 s 1 -154676.49 4 +46412.506 1280.0 C57
2021-11-18 15:33:56 S 10 24 15.360 -01 11 54.78 V C57
2021-11-18 15:33:56 s 1 -154353.96 1 +45441.964 6780.0 C57
2021-11-18 15:43:56 S 10 24 18.660 -01 12 03.20 V C57
2021-11-18 15:43:56 s 1 -154027.00 9 +44470.114 5550.0 C57
2021-11-18 15:53:56 S 10 24 21.698 -01 12 11.81 V C57
2021-11-18 15:53:56 s 1 -153695.60 1 +43496.974 7450.0 C57