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
2017-09-26 00:32:23 C 23 49 02.10 +27 14 40.4 q J27
2017-09-26 00:39:24 C 23 49 01.30 +27 14 34.4 q J27
2017-09-26 00:49:34 C 23 49 00.15 +27 14 25.8 q J27
2017-09-28 07:31:25 C 23 42 58.76 +26 25 40.5 q 703
2017-09-28 07:41:51 C 23 42 57.53 +26 25 30.0 q 703
2017-09-28 07:50:33 C 23 42 56.52 +26 25 21.9 q 703
2017-09-28 07:59:10 C 23 42 55.51 +26 25 14.3 q 703
2017-09-28 11:17:44 C 23 42 33.520 +26 22 09.99 L F51
2017-09-28 11:35:45 C 23 42 31.438 +26 21 52.62 L F51
2017-09-28 11:53:44 C 23 42 29.363 +26 21 35.16 L F51
2017-09-29 09:42:55 C 23 40 06.00 +26 00 25.5 L T08
2017-09-29 10:01:29 C 23 40 03.83 +26 00 07.8 L T08
2017-09-29 10:22:22 C 23 40 01.41 +25 59 46.0 L T08
2017-09-29 10:32:58 C 23 40 00.22 +25 59 35.7 L T08
2017-09-30 09:50:37 C 23 37 26.32 +25 35 54.2 o 691
2017-09-30 10:04:22 C 23 37 24.81 +25 35 39.4 o 691
2017-09-30 10:18:08 C 23 37 23.23 +25 35 25.1 o 691
2017-10-01 05:37:55 C 23 35 17.97 +25 15 10.2 q 703
2017-10-01 05:45:04 C 23 35 17.20 +25 15 02.9 q 703
2017-10-01 05:52:16 C 23 35 16.35 +25 14 55.0 q 703
2017-10-01 05:59:30 C 23 35 15.54 +25 14 47.5 q 703
2017-10-01 10:03:18 C 23 34 48.64 +25 10 30.4 L T05
2017-10-01 10:23:07 C 23 34 46.35 +25 10 08.8 L T05
2017-10-01 10:23:46 C 23 34 46.30 +25 10 08.4 L T05
2017-10-01 10:43:15 C 23 34 44.08 +25 09 47.1 L T05
2017-10-07 00:06:29 C 23 20 41.90 +22 32 52.8 q 160
2017-10-07 00:09:27 C 23 20 41.58 +22 32 48.1 q 160
2017-10-07 00:12:27 C 23 20 41.25 +22 32 43.7 q 160
2017-10-07 14:10:20 C 23 19 18.05 +22 15 02.7 q D29
2017-10-07 14:13:26 C 23 19 17.73 +22 14 58.6 q D29
2017-10-07 14:38:10 C 23 19 15.09 +22 14 26.7 q D29
2017-10-07 14:41:15 C 23 19 14.80 +22 14 22.5 q D29
2017-10-07 15:05:59 C 23 19 12.20 +22 13 50.9 q D29
2017-10-07 15:09:04 C 23 19 11.89 +22 13 47.1 q D29
2017-10-08 22:57:07 C 23 16 04.56 +21 32 23.0 q 160
2017-10-08 23:00:08 C 23 16 04.27 +21 32 19.1 q 160
2017-10-08 23:03:09 C 23 16 03.95 +21 32 14.8 q 160
2017-10-10 05:49:03 C 23 13 08.74 +20 51 23.6 U 703
2017-10-10 05:56:11 C 23 13 08.08 +20 51 14.9 U 703
2017-10-10 06:03:20 C 23 13 07.33 +20 51 04.1 U 703
2017-10-10 06:10:30 C 23 13 06.59 +20 50 54.6 U 703
2017-10-10 17:00:03 C 23 12 06.85 +20 36 22.2 q C97
2017-10-10 17:03:11 C 23 12 06.57 +20 36 16.3 q C97
2017-10-10 17:05:25 C 23 12 06.39 +20 36 14.0 q C97
2017-10-10 17:10:23 C 23 12 05.87 +20 36 07.8 q C97
2017-10-10 17:12:58 C 23 12 05.56 +20 36 03.7 q C97
2017-10-10 22:29:34 C 23 11 35.81 +20 28 47.6 q 160
2017-10-10 22:32:09 C 23 11 35.55 +20 28 44.0 q 160
2017-10-10 22:34:46 C 23 11 35.30 +20 28 40.2 q 160
2017-10-11 23:48:29 C 23 09 18.38 +19 54 12.7 U J27
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)