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
2021-12-09 06:03:55 S 13 06 34.805 -07 29 48.08 V C57
2021-12-09 06:03:55 s 1 +28790.359 0 +386694.54 5410.0 C57
2021-12-09 13:53:55 S 13 08 52.987 -07 34 45.08 V C57
2021-12-09 13:53:55 s 1 +12435.863 0 +389004.74 7670.0 C57
2021-12-10 03:23:55 S 13 12 47.894 -07 43 06.10 V C57
2021-12-10 03:23:55 s 1 -15884.070 0 +388130.85 4660.0 C57
2021-12-10 03:33:55 S 13 12 50.309 -07 43 19.96 V C57
2021-12-10 03:33:55 s 1 -16233.257 0 +388081.65 7400.0 C57
2022-01-01 15:21:27 C 15 21 29.07 -11 39 06.1 V T08
2022-01-01 15:27:26 C 15 21 30.25 -11 39 07.7 V T08
2022-01-01 15:46:00 C 15 21 33.99 -11 39 14.3 V T08
2022-01-01 15:59:17 C 15 21 36.51 -11 39 19.3 V T08
2022-01-05 15:14:24 C 15 40 11.69 -12 10 14.4 V T08
2022-01-05 15:19:03 C 15 40 12.61 -12 10 16.8 V T08
2022-01-05 15:42:16 C 15 40 16.97 -12 10 24.0 V T08
2022-01-05 15:56:14 C 15 40 19.58 -12 10 28.7 V T08
2022-01-09 14:59:23 C 15 57 56.34 -12 38 45.0 V T08
2022-01-09 15:04:42 C 15 57 57.28 -12 38 46.1 V T08
2022-01-09 15:15:18 C 15 57 59.16 -12 38 48.2 V T08
2022-01-09 15:42:32 C 15 58 04.06 -12 38 56.3 V T08
2022-01-13 13:04:43 C 16 14 32.60 -13 04 07.1 V G96
2022-01-13 13:09:33 C 16 14 33.43 -13 04 08.4 V G96
2022-01-13 13:14:24 C 16 14 34.25 -13 04 09.9 V G96
2022-01-13 13:19:14 C 16 14 35.08 -13 04 11.1 V G96
2022-01-14 12:58:50 C 16 18 38.39 -13 10 07.0 V 703
2022-01-14 13:05:14 C 16 18 39.41 -13 10 09.6 V 703
2022-01-14 13:11:39 C 16 18 40.50 -13 10 10.3 V 703
2022-05-26 01:26:20 C 19 46 53.54 -14 44 44.5 X C95
2022-05-26 01:53:46 C 19 46 52.48 -14 44 49.9 X C95
2022-06-03 04:25:15 C 19 37 58.76 -15 30 44.9 V W94
2022-06-03 04:33:27 C 19 37 58.30 -15 30 47.5 V W94
2022-06-03 04:41:48 C 19 37 57.78 -15 30 49.3 V W94
2024-09-09 11:00:33 C 00 19 01.398 -12 35 01.38 X F51
2024-09-09 11:17:28 C 00 19 00.752 -12 35 07.25 X F51
2024-09-09 11:42:30 C 00 18 59.762 -12 35 16.02 X F51
2024-09-09 11:59:25 C 00 18 59.109 -12 35 22.04 X F51
2024-09-28 08:54:00 C 23 59 57.395 -15 04 07.95 X F52
2024-09-28 09:11:09 C 23 59 56.617 -15 04 13.02 X F52
2024-09-28 09:28:19 C 23 59 55.830 -15 04 17.73 X F52
2024-09-28 09:45:29 C 23 59 55.061 -15 04 22.71 X F52
2024-10-07 08:20:00 C 23 50 33.349 -16 00 26.89 X F51
2024-10-07 08:35:52 C 23 50 32.657 -16 00 30.37 X F51
2024-10-07 08:52:01 C 23 50 31.955 -16 00 34.17 X F51
2024-10-07 09:08:06 C 23 50 31.242 -16 00 37.79 X F51
2024-10-08 05:08:36 C 23 49 40.332 -16 05 10.00 V G96
2024-10-08 05:16:04 C 23 49 40.069 -16 05 11.18 V G96
2024-10-08 05:31:00 C 23 49 39.396 -16 05 14.71 V G96
2024-11-02 06:07:18 C 23 29 02.295 -17 16 27.16 X F51
2024-11-02 06:22:14 C 23 29 01.918 -17 16 27.63 X F51
2024-11-02 06:37:09 C 23 29 01.560 -17 16 27.83 X F51