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
2009-08-01 21:23:57 C 21 07 08.59 +20 34 01.4 o 151
2009-08-01 21:28:09 C 21 07 08.11 +20 33 59.4 o 151
2009-08-01 21:30:14 C 21 07 07.85 +20 33 58.3 o 151
2009-08-01 21:32:20 C 21 07 07.59 +20 33 57.3 o 151
2009-08-04 21:30:23 C 20 58 49.26 +19 53 08.8 o B88
2009-08-04 21:40:45 C 20 58 48.02 +19 53 03.0 o B88
2009-08-04 21:51:07 C 20 58 46.81 +19 52 56.5 o B88
2009-08-19 20:43:21 C 20 23 28.90 +14 52 00.5 r C01
2009-08-19 23:18:05 C 20 23 16.26 +14 49 28.5 o B88
2009-08-19 23:27:27 C 20 23 15.51 +14 49 19.7 o B88
2009-08-19 23:36:49 C 20 23 14.73 +14 49 09.9 o B88
2009-08-20 21:21:33 C 20 21 35.38 +14 27 32.9 r C01
2009-08-20 21:24:55 C 20 21 35.08 +14 27 29.6 r C01
2009-08-25 20:31:19 C 20 13 36.44 +12 26 57.5 c 561
2009-08-25 20:40:19 C 20 13 35.91 +12 26 49.0 c 561
2009-08-25 20:48:29 C 20 13 35.41 +12 26 40.6 c 561
2009-08-31 20:43:03 C 20 06 31.72 +10 00 54.6 o B88
2009-08-31 20:59:52 C 20 06 31.00 +10 00 37.6 o B88
2009-08-31 21:16:41 C 20 06 30.24 +10 00 21.3 o B88
2010-07-18 23:22:22 S 14 13 37.114 +08 14 59.39 L C51
2010-07-21 00:35:07 S 14 25 19.45 +07 24 16.9 L C51
2010-07-21 03:45:38 S 14 26 03.51 +07 21 02.6 L C51
2010-07-21 06:56:09 S 14 26 47.47 +07 17 48.3 L C51
2010-07-21 10:06:40 S 14 27 31.27 +07 14 35.3 L C51
2010-07-21 13:17:11 S 14 28 14.94 +07 11 21.8 L C51
2010-07-21 16:27:42 S 14 28 58.43 +07 08 08.9 L C51
2010-07-21 19:38:13 S 14 29 41.79 +07 04 56.4 L C51
2010-07-21 22:48:44 S 14 30 25.01 +07 01 43.6 L C51
2010-07-22 00:23:54 S 14 30 46.55 +07 00 07.3 L C51
2010-07-22 01:59:15 S 14 31 08.08 +06 58 31.6 L C51
2010-07-22 03:34:25 S 14 31 29.55 +06 56 55.9 L C51
2010-07-22 05:09:46 S 14 31 51.02 +06 55 19.6 L C51
2010-07-22 06:44:56 S 14 32 12.42 +06 53 44.1 L C51
2010-07-22 08:20:17 S 14 32 33.82 +06 52 08.2 L C51
2010-07-22 09:55:27 S 14 32 55.15 +06 50 32.6 L C51
2010-07-22 11:30:49 S 14 33 16.48 +06 48 57.1 L C51
2010-07-22 13:05:59 S 14 33 37.74 +06 47 21.8 L C51
2010-07-22 14:41:20 S 14 33 58.99 +06 45 45.6 L C51
2010-07-22 16:16:30 S 14 34 20.17 +06 44 11.0 L C51
2010-07-22 19:27:01 S 14 35 02.49 +06 41 00.4 L C51
2010-07-22 22:37:32 S 14 35 44.64 +06 37 50.3 L C51
2010-07-23 01:48:03 S 14 36 26.67 +06 34 40.3 L C51
2010-07-23 04:58:34 S 14 37 08.57 +06 31 31.0 L C51
2010-07-23 08:09:05 S 14 37 50.33 +06 28 21.8 L C51
2010-07-23 11:19:36 S 14 38 31.94 +06 25 13.0 L C51
2010-07-23 14:30:07 S 14 39 13.44 +06 22 03.8 L C51
2010-07-23 17:40:38 S 14 39 54.78 +06 18 56.0 L C51
2015-07-24 14:04:51 C 03 42 58.700 +25 34 07.47 L F51
2015-07-24 14:11:27 C 03 42 59.571 +25 34 09.27 L F51
2016-09-10 09:52:31 C 04 16 05.90 +32 36 51.2 q G96
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)