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
2007-11-15 03:15:08 C 07 11 44.53 +18 04 49.9 r J40
2007-11-16 08:00:35 C 07 23 26.12 +15 24 47.0 r H45
2007-11-16 08:02:06 C 07 23 26.73 +15 24 38.1 r H45
2007-11-16 08:04:26 C 07 23 27.68 +15 24 24.1 r H45
2007-11-16 08:05:23 C 07 23 28.05 +15 24 18.5 r H45
2007-11-16 08:06:25 C 07 23 28.49 +15 24 12.4 r H45
2007-11-16 08:07:17 C 07 23 28.83 +15 24 07.1 r H45
2007-11-16 08:08:14 C 07 23 29.22 +15 24 01.6 r H45
2007-11-17 02:55:45 C 07 31 41.37 +13 25 59.6 c A24
2007-11-17 02:57:12 C 07 31 42.10 +13 25 48.6 c A24
2007-11-17 03:52:38 C 07 32 06.03 +13 19 44.0 c A24
2007-11-17 03:54:07 C 07 32 06.65 +13 19 34.3 c A24
2008-08-28 00:53:51 C 00 04 02.72 +28 26 20.0 r J75
2008-08-28 01:14:24 C 00 04 01.23 +28 26 20.9 r J75
2008-08-28 01:35:00 C 00 03 59.71 +28 26 21.5 r J75
2008-09-06 22:29:02 C 23 44 25.28 +27 50 00.7 r 106
2008-09-06 22:42:50 C 23 44 23.91 +27 49 55.9 r 106
2008-09-06 22:56:40 C 23 44 22.55 +27 49 50.8 r 106
2008-09-06 23:10:30 C 23 44 21.15 +27 49 47.0 r 106
2008-09-10 20:43:19 C 23 35 12.30 +27 09 55.4 r A13
2008-09-10 20:55:14 C 23 35 11.06 +27 09 49.6 r A13
2008-09-10 21:32:51 C 23 35 07.17 +27 09 31.0 r A13
2008-09-10 22:12:44 C 23 35 02.95 +27 09 11.4 r A13
2008-09-21 18:34:48 C 23 07 50.15 +23 56 34.3 o 151
2008-09-21 18:35:51 C 23 07 50.03 +23 56 33.5 o 151
2008-09-21 18:36:54 C 23 07 49.92 +23 56 32.6 o 151
2008-09-21 18:38:00 C 23 07 49.81 +23 56 31.4 o 151
2008-09-21 18:39:00 C 23 07 49.70 +23 56 30.1 o 151
2008-09-23 03:39:52 C 23 04 24.60 +23 24 11.7 r 703
2008-09-23 04:00:57 C 23 04 22.36 +23 23 50.6 r 703
2008-09-23 04:11:30 C 23 04 21.21 +23 23 39.5 r 703
2008-09-28 07:20:28 C 22 52 08.11 +21 09 51.2 r 703
2008-09-28 07:31:46 C 22 52 06.99 +21 09 38.3 r 703
2008-09-28 07:43:01 C 22 52 05.88 +21 09 25.3 r 703
2008-09-28 07:54:18 C 22 52 04.76 +21 09 12.3 r 703
2008-09-29 21:34:11 C 22 48 35.76 +20 24 51.6 r 130
2008-09-29 21:36:50 C 22 48 35.50 +20 24 48.5 r 130
2008-09-29 21:39:29 C 22 48 35.25 +20 24 45.2 r 130
2008-09-29 21:41:39 C 22 48 35.06 +20 24 42.6 r 130
2008-10-02 05:16:48 C 22 43 41.11 +19 17 18.5 18.5 c 704
2008-10-02 05:34:41 C 22 43 39.53 +19 16 56.8 18.9 c 704
2008-10-02 05:52:28 C 22 43 37.92 +19 16 34.6 18.7 c 704
2008-10-02 06:10:14 C 22 43 36.37 +19 16 13.2 18.9 c 704
2008-10-10 03:53:04 C 22 29 39.22 +15 16 09.1 r 703
2008-10-10 04:04:23 C 22 29 38.47 +15 15 54.8 r 703
2008-10-10 04:15:52 C 22 29 37.71 +15 15 40.5 r 703
2008-10-10 04:27:10 C 22 29 37.03 +15 15 25.7 r 703
2008-10-21 00:38:18 C 22 18 14.27 +09 57 08.0 o H83
2008-10-21 01:22:17 C 22 18 12.92 +09 56 17.5 o H83
2008-10-25 01:56:28 C 22 16 16.60 +08 09 26.6 r 703
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)