142781 (2002 UM11)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3877933296 ± 9.98e-09
Semi-major axis (a)1.9511042408 AU ± 1.58e-09
Inclination (i)41.02329588° ± 1.71e-06
Long. of Asc. Node (Ω)228.96838729° ± 1.55e-06
Arg. of Perihelion (ω)229.05180523° ± 3.32e-06
Mean Anomaly (M)124.85421482° ± 2.05e-06
Mean Motion (n)0.3616525793°/day ± 4.40e-10
Perihelion dist (q)1.19447903 AU ± 1.95e-08
Aphelion dist (Q)2.70772945 AU ± 1.96e-08
Orbital Period2.72534012 yr ± 3.32e-09
Physical Parameters
H (abs. magnitude)16.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.100″
Uncertainty0
Orbit TypeAmor
MOID0.310355 AU
Observations Used1036
Gaia Obs Used102
Oppositions10
Arc Total2001-2017
First Observation Used2001-06-23
Last Observation Used2025-05-31
Observations (1150)
Date Type RA Dec Mag Band Observatory
2009-05-18 15:51:12 C 15 38 27.66 -08 55 33.8 r D29
2009-05-18 16:08:00 C 15 38 26.67 -08 55 19.4 r D29
2009-05-27 06:29:42 C 15 26 59.59 -06 13 30.8 o 691
2009-05-27 06:55:05 C 15 26 58.20 -06 13 12.7 o 691
2009-05-27 07:20:28 C 15 26 56.88 -06 12 53.9 o 691
2009-05-29 21:42:45 C 15 23 47.34 -05 28 39.0 o 198
2009-05-29 22:10:48 C 15 23 45.92 -05 28 19.8 o 198
2009-06-03 02:40:25 C 15 19 02.37 -04 22 00.1 r I20
2009-06-03 02:51:41 C 15 19 01.87 -04 21 53.3 r I20
2010-08-23 10:10:01 C 20 18 28.095 +48 45 56.41 L F51
2010-08-23 10:33:44 C 20 18 26.666 +48 45 49.14 L F51
2010-08-23 10:50:37 C 20 18 25.686 +48 45 43.91 L F51
2011-01-09 02:00:46 C 22 53 12.01 +11 30 56.9 r 703
2011-01-09 02:07:22 C 22 53 12.73 +11 30 55.0 r 703
2011-01-09 02:14:01 C 22 53 13.52 +11 30 52.7 r 703
2011-01-09 02:20:37 C 22 53 14.17 +11 30 51.4 r 703
2012-06-02 06:35:51 C 17 12 43.52 +09 27 15.6 u H21
2012-06-02 06:42:38 C 17 12 43.16 +09 27 19.0 u H21
2012-06-02 06:50:15 C 17 12 42.79 +09 27 22.7 u H21
2012-06-10 10:01:06 C 17 02 11.95 +10 56 07.9 o 691
2012-06-10 10:26:41 C 17 02 10.58 +10 56 18.0 o 691
2012-06-10 10:52:15 C 17 02 09.23 +10 56 28.4 o 691
2012-06-14 07:32:05 C 16 57 15.72 +11 30 23.6 o 691
2012-06-14 07:57:41 C 16 57 14.35 +11 30 32.3 o 691
2012-06-14 08:23:15 C 16 57 12.97 +11 30 40.7 o 691
2012-06-22 05:48:24 C 16 47 45.44 +12 23 06.3 o 691
2012-06-22 06:14:00 C 16 47 44.24 +12 23 12.4 o 691
2012-06-22 06:39:35 C 16 47 42.97 +12 23 17.8 o 691
2013-09-24 07:42:23 C 02 27 15.52 +58 57 19.3 u H21
2013-09-24 07:47:03 C 02 27 15.60 +58 57 18.4 u H21
2013-09-24 07:52:48 C 02 27 15.67 +58 57 17.7 u H21
2013-09-27 09:33:31 C 02 28 21.85 +58 43 27.2 q G68
2013-09-27 10:03:31 C 02 28 22.08 +58 43 20.2 q G68
2013-09-27 10:33:30 C 02 28 22.26 +58 43 13.0 q G68
2013-10-11 00:28:16 C 02 26 36.70 +55 50 35.9 18.6 r 238
2013-10-11 00:38:43 C 02 26 36.39 +55 50 26.9 18.0 r 238
2013-10-11 00:49:58 C 02 26 36.11 +55 50 16.6 18.5 r 238
2013-10-13 19:49:35 C 02 24 57.02 +54 44 04.7 16.2 c 583
2013-10-13 20:05:10 C 02 24 56.51 +54 43 48.2 17.8 c 583
2013-10-13 20:09:10 C 02 24 56.43 +54 43 43.6 19.8 c 583
2013-10-13 20:12:07 C 02 24 56.32 +54 43 40.7 17.3 c 583
2013-10-13 20:19:07 C 02 24 56.04 +54 43 32.8 19.0 c 583
2013-10-13 20:23:07 C 02 24 55.94 +54 43 29.1 17.0 c 583
2013-10-13 20:27:06 C 02 24 55.80 +54 43 24.7 17.9 c 583
2013-10-13 20:40:28 C 02 24 55.40 +54 43 10.2 17.3 c 583
2013-10-13 20:47:28 C 02 24 55.13 +54 43 02.7 16.7 c 583
2013-10-13 23:55:18 C 02 24 49.10 +54 39 37.9 16.4 c 583
2013-10-14 00:02:19 C 02 24 48.86 +54 39 30.3 17.0 c 583
2013-10-14 00:08:02 C 02 24 48.67 +54 39 23.6 16.7 c 583
2013-10-14 00:11:01 C 02 24 48.58 +54 39 20.3 17.0 c 583