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
2017-11-23 04:44:04 C 00 23 34.95 -14 02 19.6 U G96
2017-12-22 01:34:08 C 00 20 25.96 -11 11 29.8 U G96
2017-12-22 01:42:16 C 00 20 26.08 -11 11 27.2 U G96
2017-12-22 01:50:24 C 00 20 26.20 -11 11 23.8 U G96
2017-12-22 01:58:31 C 00 20 26.31 -11 11 21.7 U G96
2017-12-30 05:16:24 C 00 24 34.718 -09 52 46.55 U F51
2017-12-30 05:20:14 C 00 24 34.809 -09 52 45.02 U F51
2017-12-30 05:32:24 C 00 24 35.117 -09 52 39.72 U F51
2017-12-30 05:36:15 C 00 24 35.211 -09 52 38.16 U F51
2017-12-30 05:48:25 C 00 24 35.509 -09 52 32.83 U F51
2017-12-30 05:52:17 C 00 24 35.601 -09 52 31.17 U F51
2017-12-30 06:04:27 C 00 24 35.917 -09 52 25.76 U F51
2017-12-30 06:08:18 C 00 24 36.016 -09 52 24.21 U F51
2018-06-06 07:10:57 C 09 03 20.10 +27 47 33.6 U T05
2018-06-06 07:25:48 C 09 03 24.33 +27 47 22.3 U T05
2018-06-06 07:28:02 C 09 03 24.95 +27 47 20.6 U T05
2018-06-06 07:39:33 C 09 03 28.23 +27 47 11.8 U T05
2018-06-06 07:49:59 C 09 03 31.17 +27 47 03.6 U T05
2018-06-10 06:32:51 C 09 30 13.65 +26 25 11.3 U T05
2018-06-10 06:33:31 C 09 30 13.90 +26 25 11.0 U T05
2018-06-10 06:48:48 C 09 30 18.06 +26 24 56.2 U T05
2018-06-10 06:49:27 C 09 30 18.23 +26 24 55.5 U T05
2018-06-10 07:05:40 C 09 30 22.86 +26 24 39.6 U T05
2018-06-10 07:06:20 C 09 30 22.95 +26 24 37.2 U T05
2018-06-16 07:14:36 C 10 09 52.44 +23 44 23.9 U T08
2018-06-16 07:27:00 C 10 09 55.71 +23 44 07.8 U T08
2018-06-16 07:37:12 C 10 09 58.48 +23 43 54.8 U T08
2018-06-16 07:46:51 C 10 10 01.08 +23 43 42.7 U T08
2018-06-20 03:50:24 C 10 34 08.75 +21 42 49.0 U 703
2018-06-20 04:07:01 C 10 34 13.03 +21 42 26.5 U 703
2018-06-20 04:15:20 C 10 34 15.07 +21 42 14.8 U 703
2018-06-24 03:55:06 C 10 58 11.66 +19 25 31.4 U 703
2018-06-24 04:10:20 C 10 58 15.18 +19 25 10.9 U 703
2018-06-24 04:17:57 C 10 58 17.01 +19 24 58.6 U 703
2018-07-02 03:54:08 C 11 42 23.48 +14 32 32.8 U 703
2018-07-02 04:01:38 C 11 42 25.12 +14 32 21.5 U 703
2018-07-02 04:09:08 C 11 42 26.74 +14 32 10.0 U 703
2018-07-02 04:16:38 C 11 42 28.29 +14 31 58.4 U 703
2018-07-04 06:23:25 C 11 53 08.66 +13 14 13.4 U T05
2018-07-04 06:39:40 C 11 53 12.07 +13 13 48.3 U T05
2018-07-04 06:55:02 C 11 53 15.24 +13 13 24.0 U T05
2018-07-04 07:09:46 C 11 53 18.29 +13 13 01.4 U T05
2018-07-08 06:38:31 C 12 12 40.22 +10 46 03.9 U T05
2018-07-08 06:53:45 C 12 12 43.17 +10 45 40.0 U T05
2018-07-08 07:09:33 C 12 12 46.27 +10 45 16.4 U T05
2018-07-08 07:24:37 C 12 12 49.23 +10 44 53.4 U T05
2018-07-13 06:51:36 C 12 35 21.61 +07 46 15.1 U T08
2018-07-13 06:56:19 C 12 35 22.40 +07 46 08.1 U T08
2018-07-13 07:06:23 C 12 35 24.24 +07 45 53.2 U T08
2018-07-13 07:11:09 C 12 35 25.09 +07 45 46.0 U T08