11500 Tomaiyowit (1989 UR)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3558433727 ± 2.00e+00
Semi-major axis (a)1.0798578286 AU ± 3.00e+00
Inclination (i)10.31072879° ± 4.00e+00
Long. of Asc. Node (Ω)234.38493694° ± 5.00e+00
Arg. of Perihelion (ω)289.52233292° ± 6.00e+00
Mean Anomaly (M)314.93250442° ± 5.23e-06
Mean Motion (n)0.8783394808°/day ± 3.66e+00
Perihelion dist (q)0.69559758 AU ± 2.90e+00
Aphelion dist (Q)1.46411808 AU ± 4.61e+00
Orbital Period1.12214731 yr ± 4.68e+00
NGA Modelr2
A2-1.39339812e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.347″
Uncertainty0
Orbit TypeApollo
MOID0.034039 AU
Observations Used1032
Oppositions4
Arc Total1989-2025
First Observation Used1989-10-25
Last Observation Used2025-11-10
Observations (1332)
Date Type RA Dec Mag Band Observatory
2008-10-25 02:13:05 C 22 16 16.28 +08 09 10.0 r 703
2008-10-25 02:30:01 C 22 16 16.03 +08 08 51.6 r 703
2008-10-25 02:46:44 C 22 16 15.67 +08 08 31.8 r 703
2008-10-25 03:21:25 C 22 16 14.94 +08 07 55.5 19.2 c 704
2008-10-25 03:38:34 C 22 16 14.66 +08 07 37.8 19.7 c 704
2008-10-25 03:55:13 C 22 16 14.34 +08 07 20.2 19.4 c 704
2008-10-25 04:11:50 C 22 16 14.01 +08 07 02.2 19.5 c 704
2008-10-25 04:28:33 C 22 16 13.74 +08 06 43.9 19.6 c 704
2008-10-26 03:07:41 C 22 15 57.26 +07 42 51.9 19.1 c 704
2008-10-26 03:24:12 C 22 15 57.01 +07 42 34.9 19.5 c 704
2008-10-26 03:40:45 C 22 15 56.80 +07 42 17.6 19.5 c 704
2008-10-26 03:57:17 C 22 15 56.53 +07 42 00.3 19.4 c 704
2008-10-27 03:05:59 C 22 15 43.59 +07 18 06.2 19.3 c 704
2008-10-27 03:22:36 C 22 15 43.40 +07 17 48.8 19.8 c 704
2008-10-27 03:39:35 C 22 15 43.21 +07 17 32.0 19.1 c 704
2008-10-27 03:56:15 C 22 15 42.97 +07 17 14.8 19.5 c 704
2008-10-27 04:12:57 C 22 15 42.78 +07 16 57.3 19.4 c 704
2008-11-03 03:04:44 C 22 15 59.80 +04 39 45.4 19.5 c 704
2008-11-03 03:21:51 C 22 15 59.91 +04 39 30.9 19.9 c 704
2008-11-03 03:38:57 C 22 16 00.02 +04 39 15.6 19.6 c 704
2008-11-03 03:56:00 C 22 16 00.16 +04 39 00.5 19.7 c 704
2008-11-03 04:12:57 C 22 16 00.27 +04 38 46.9 19.8 c 704
2008-11-20 02:54:53 C 22 28 00.40 +00 03 41.4 r 703
2008-11-20 03:06:06 C 22 28 00.87 +00 03 34.4 r 703
2008-11-20 03:17:25 C 22 28 01.34 +00 03 29.5 r 703
2008-11-20 03:28:51 C 22 28 01.81 +00 03 22.7 r 703
2008-12-21 02:29:49 C 23 17 04.48 -03 20 50.5 r 703
2008-12-21 02:38:37 C 23 17 05.06 -03 20 52.3 r 703
2008-12-21 02:47:25 C 23 17 05.74 -03 20 52.4 r 703
2008-12-21 02:56:13 C 23 17 06.43 -03 20 53.6 r 703
2009-01-16 02:10:46 C 00 13 01.723 -03 45 05.84 645
2009-01-16 02:11:58 C 00 13 01.812 -03 45 05.81 645
2009-01-16 02:14:21 C 00 13 02.052 -03 45 06.01 645
2009-01-16 02:15:33 C 00 13 02.160 -03 45 06.19 645
2009-06-17 23:48:40 C 22 34 43.57 +15 04 17.6 c 561
2009-06-17 23:57:59 C 22 34 43.32 +15 04 25.6 c 561
2009-06-18 00:04:20 C 22 34 43.14 +15 04 30.8 c 561
2009-06-30 09:07:36 C 22 22 32.37 +18 48 39.3 r 703
2009-06-30 09:13:52 C 22 22 31.98 +18 48 43.2 r 703
2009-06-30 09:20:06 C 22 22 31.62 +18 48 47.8 r 703
2009-07-19 23:07:48 C 21 42 57.58 +21 47 03.8 c J05
2009-07-19 23:21:44 C 21 42 56.06 +21 47 04.3 c J05
2009-07-19 23:35:06 C 21 42 54.59 +21 47 04.8 c J05
2009-07-20 20:58:17 C 21 40 34.45 +21 47 29.0 o 198
2009-07-20 21:24:32 C 21 40 31.50 +21 47 29.8 o 198
2009-07-20 21:28:34 C 21 40 31.04 +21 47 29.9 o 198
2009-07-20 21:40:54 C 21 40 29.66 +21 47 30.3 o 198
2009-07-22 22:12:10 C 21 35 04.31 +21 45 33.9 c J05
2009-07-22 23:16:43 C 21 34 56.78 +21 45 29.8 c J05
2009-08-01 21:19:46 C 21 07 09.18 +20 34 03.7 o 151
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2007-11-26 12:20:00 -121825.1 0.5 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)