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
2021-09-08 11:34:20 C 05 02 53.76 +09 59 00.2 U I41
2021-09-10 11:40:47 C 05 07 46.61 +09 57 21.6 V 703
2021-09-10 11:45:18 C 05 07 47.08 +09 57 22.1 V 703
2021-09-10 11:53:32 C 05 07 47.82 +09 57 22.0 V 703
2021-09-10 11:58:03 C 05 07 48.37 +09 57 21.2 V 703
2021-09-29 01:17:52 S 05 58 38.405 +09 11 50.78 L C51
2021-10-03 14:06:22 C 06 13 09.29 +08 50 43.5 V T05
2021-10-03 14:11:00 C 06 13 09.90 +08 50 42.4 V T05
2021-10-03 14:22:14 C 06 13 11.45 +08 50 40.1 V T05
2021-10-03 14:53:09 C 06 13 15.64 +08 50 33.4 V T05
2021-10-04 14:53:48 C 06 16 36.47 +08 45 16.1 V T05
2021-10-04 14:58:38 C 06 16 37.13 +08 45 14.9 V T05
2021-10-04 15:04:53 C 06 16 37.98 +08 45 13.6 V T05
2021-10-04 15:22:49 C 06 16 40.47 +08 45 09.4 V T05
2021-10-18 14:46:18 C 07 10 27.84 +07 02 59.9 V T08
2021-10-18 14:52:16 C 07 10 28.94 +07 02 57.6 V T08
2021-10-18 15:16:21 C 07 10 33.28 +07 02 47.8 V T08
2021-10-18 15:21:35 C 07 10 34.21 +07 02 46.0 V T08
2021-10-20 14:15:20 C 07 19 23.32 +06 43 32.3 V T05
2021-10-20 14:24:37 C 07 19 25.06 +06 43 28.2 V T05
2021-10-20 14:29:15 C 07 19 25.96 +06 43 26.5 V T05
2021-10-20 14:52:41 C 07 19 30.36 +06 43 16.5 V T05
2021-10-25 13:51:31 C 07 43 40.88 +05 47 51.4 V T08
2021-10-25 13:58:50 C 07 43 42.46 +05 47 48.4 V T08
2021-10-25 14:04:48 C 07 43 43.63 +05 47 44.7 V T08
2021-10-25 14:19:10 C 07 43 46.72 +05 47 37.9 V T08
2021-10-26 14:56:15 C 07 49 07.65 +05 34 53.0 V T08
2021-10-26 14:59:34 C 07 49 08.40 +05 34 51.5 V T08
2021-10-26 15:03:33 C 07 49 09.21 +05 34 49.3 V T08
2021-10-26 15:22:55 C 07 49 13.45 +05 34 38.3 V T08
2021-10-26 17:39:08 C 07 49 44.050 +05 33 35.17 V P07
2021-10-26 18:09:04 C 07 49 50.623 +05 33 19.73 V P07
2021-10-26 18:49:11 C 07 49 59.304 +05 32 58.67 V P07
2021-10-26 19:18:45 C 07 50 05.827 +05 32 42.97 V P07
2021-10-26 19:48:26 C 07 50 12.298 +05 32 27.78 V P07
2021-10-26 19:49:20 C 07 50 12.504 +05 32 26.84 V P07
2021-10-26 20:18:41 C 07 50 18.895 +05 32 11.72 V P07
2021-10-28 18:02:50 C 08 00 39.156 +05 07 06.53 V P07
2021-10-28 18:32:27 C 08 00 45.958 +05 06 49.72 V P07
2021-10-28 19:32:12 C 08 00 59.568 +05 06 15.88 V P07
2021-10-28 19:32:31 C 08 00 59.683 +05 06 15.34 V P07
2021-10-28 20:44:09 C 08 01 15.998 +05 05 36.06 V P07
2021-10-29 10:47:50 C 08 04 32.66 +04 57 18.4 V 703
2021-10-29 10:55:41 C 08 04 34.57 +04 57 14.6 V 703
2021-10-29 11:03:34 C 08 04 36.34 +04 57 09.4 V 703
2021-10-29 11:11:26 C 08 04 38.17 +04 57 04.6 V 703
2021-10-29 14:07:39 C 08 05 19.63 +04 55 25.2 V T08
2021-10-29 14:15:38 C 08 05 21.51 +04 55 20.6 V T08
2021-10-29 14:20:03 C 08 05 22.49 +04 55 18.3 V T08
2021-10-29 14:36:00 C 08 05 26.21 +04 55 08.0 V T08