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
2015-06-15 11:50:40 C 20 55 32.062 -18 07 43.07 L F51
2015-06-15 12:06:52 C 20 55 31.616 -18 07 46.06 L F51
2015-06-15 12:23:07 C 20 55 31.125 -18 07 49.97 L F51
2015-06-20 12:01:44 C 20 51 55.298 -18 33 38.11 L F51
2015-06-20 12:18:03 C 20 51 54.740 -18 33 41.71 L F51
2015-06-20 12:34:22 C 20 51 54.201 -18 33 45.28 L F51
2015-06-20 12:50:40 C 20 51 53.649 -18 33 49.15 L F51
2015-06-26 13:05:00 C 20 46 45.800 -19 07 40.76 L F51
2015-06-26 13:20:50 C 20 46 45.187 -19 07 44.58 L F51
2015-06-26 13:36:40 C 20 46 44.556 -19 07 48.44 L F51
2015-06-26 13:52:28 C 20 46 43.929 -19 07 52.11 L F51
2015-06-28 13:40:35 C 20 44 51.471 -19 19 36.78 L F51
2015-06-28 13:56:28 C 20 44 50.823 -19 19 40.66 L F51
2015-06-28 14:12:17 C 20 44 50.172 -19 19 44.64 L F51
2015-06-28 14:28:04 C 20 44 49.520 -19 19 48.52 L F51
2015-07-19 11:32:25 C 20 21 35.080 -21 27 17.07 L F51
2015-07-19 12:05:11 C 20 21 33.409 -21 27 25.08 L F51
2017-08-22 13:01:26 C 01 47 53.443 -03 25 42.19 L F51
2017-08-22 13:21:32 C 01 47 53.402 -03 25 47.31 L F51
2017-08-22 13:41:38 C 01 47 53.346 -03 25 52.40 L F51
2017-08-22 14:01:48 C 01 47 53.279 -03 25 57.56 L F51
2017-09-16 12:01:35 C 01 38 33.688 -06 49 08.69 L F51
2017-09-16 13:27:30 C 01 38 30.947 -06 49 44.21 L F51
2017-09-16 13:48:30 C 01 38 30.280 -06 49 52.88 L F51
2017-09-16 14:09:25 C 01 38 29.610 -06 50 01.48 L F51
2017-10-10 11:50:35 C 01 13 28.133 -10 57 00.85 L F51
2017-10-10 12:04:55 C 01 13 27.343 -10 57 06.64 L F51
2017-10-10 12:19:16 C 01 13 26.534 -10 57 12.56 L F51
2017-10-10 12:33:35 C 01 13 25.757 -10 57 18.39 L F51
2017-10-14 06:38:38 C 01 08 29.94 -11 32 57.4 U 703
2017-10-14 06:45:49 C 01 08 29.58 -11 32 59.5 U 703
2017-10-14 06:52:59 C 01 08 29.07 -11 33 02.7 U 703
2017-10-14 07:00:09 C 01 08 28.64 -11 33 03.4 U 703
2017-10-17 05:59:48 C 01 04 30.44 -11 59 23.3 U 703
2017-10-17 06:07:52 C 01 04 29.97 -11 59 27.3 U 703
2017-10-17 06:15:52 C 01 04 29.52 -11 59 29.6 U 703
2017-10-17 06:23:39 C 01 04 29.08 -11 59 32.1 U 703
2017-10-23 06:03:24 C 00 56 23.18 -12 46 49.7 U 703
2017-10-23 06:27:09 C 00 56 21.87 -12 46 58.0 U 703
2017-10-26 05:31:45 C 00 52 24.52 -13 06 56.1 U G96
2017-10-26 05:39:27 C 00 52 24.04 -13 06 58.2 U G96
2017-10-26 05:47:03 C 00 52 23.66 -13 07 00.0 U G96
2017-10-26 05:54:43 C 00 52 23.20 -13 07 02.2 U G96
2017-11-16 05:26:43 C 00 28 43.55 -14 11 31.3 U 703
2017-11-16 05:34:39 C 00 28 43.26 -14 11 31.9 U 703
2017-11-16 05:45:11 C 00 28 42.84 -14 11 30.7 U 703
2017-11-16 05:53:07 C 00 28 42.63 -14 11 31.9 U 703
2017-11-23 04:20:34 C 00 23 35.61 -14 02 21.8 U G96
2017-11-23 04:28:24 C 00 23 35.38 -14 02 21.1 U G96
2017-11-23 04:36:17 C 00 23 35.16 -14 02 20.3 U G96