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
2018-10-15 07:58:25 C 20 39 57.07 -00 31 03.3 U T05
2018-10-15 07:59:04 C 20 39 57.00 -00 31 03.4 U T05
2018-11-03 01:41:35 C 21 03 29.19 -03 17 03.8 V G96
2018-11-03 01:49:47 C 21 03 29.69 -03 17 05.8 V G96
2018-11-03 01:58:01 C 21 03 30.19 -03 17 07.6 V G96
2018-11-03 02:06:13 C 21 03 30.68 -03 17 10.1 V G96
2018-11-06 05:00:41 C 21 08 20.829 -03 33 52.56 U F52
2018-11-06 05:20:15 C 21 08 22.072 -03 33 56.48 U F52
2018-11-13 02:02:32 C 21 19 45.20 -04 00 55.2 V G96
2018-11-13 02:10:00 C 21 19 45.76 -04 00 55.9 V G96
2018-11-13 02:17:28 C 21 19 46.26 -04 00 57.0 V G96
2018-11-13 02:24:57 C 21 19 46.78 -04 00 58.0 V G96
2019-02-05 05:32:32 C 00 34 12.455 +03 03 33.56 U F51
2019-02-05 05:39:56 C 00 34 13.315 +03 03 36.63 U F51
2019-02-05 05:47:21 C 00 34 14.195 +03 03 39.66 U F51
2019-06-22 04:23:59 C 11 45 23.76 +28 57 09.6 V 703
2019-06-22 04:32:19 C 11 45 28.19 +28 57 04.0 V 703
2019-06-22 04:40:39 C 11 45 32.61 +28 56 57.9 V 703
2019-06-22 04:48:58 C 11 45 37.04 +28 56 52.1 V 703
2019-06-24 20:40:58 C 12 19 21.85 +28 01 12.1 q 160
2019-06-24 20:43:56 C 12 19 23.30 +28 01 08.6 q 160
2019-06-24 20:46:56 C 12 19 24.82 +28 01 06.3 q 160
2019-06-25 04:59:52 C 12 23 36.37 +27 52 03.8 V 703
2019-06-25 05:07:25 C 12 23 40.17 +27 51 54.9 V 703
2019-06-25 05:14:58 C 12 23 43.93 +27 51 45.4 V 703
2019-06-25 05:22:31 C 12 23 47.71 +27 51 36.3 V 703
2019-06-25 07:17:46 C 12 24 46.60 +27 49 37.1 V T05
2019-06-25 07:22:32 C 12 24 48.98 +27 49 31.3 V T05
2019-06-25 07:30:36 C 12 24 52.98 +27 49 21.6 V T05
2019-06-25 07:44:43 C 12 24 59.99 +27 49 04.4 V T05
2019-06-25 20:22:29 C 12 31 22.05 +27 33 43.8 q 160
2019-06-25 20:25:21 C 12 31 23.49 +27 33 40.4 q 160
2019-06-25 20:28:13 C 12 31 24.93 +27 33 36.1 q 160
2019-06-26 20:42:37 C 12 43 19.96 +27 02 12.6 q 160
2019-06-26 20:45:35 C 12 43 21.33 +27 02 08.9 q 160
2019-06-28 21:03:22 C 13 05 54.04 +25 51 28.5 q 160
2019-06-28 21:05:12 C 13 05 54.85 +25 51 25.2 q 160
2019-06-28 21:07:02 C 13 05 55.66 +25 51 22.3 q 160
2019-06-29 07:03:51 C 13 10 21.88 +25 36 03.1 V T05
2019-06-29 07:15:04 C 13 10 26.73 +25 35 44.9 V T05
2019-06-29 07:29:44 C 13 10 33.05 +25 35 21.0 V T05
2019-06-29 07:35:32 C 13 10 35.55 +25 35 11.6 V T05
2019-06-30 20:37:32 C 13 26 26.32 +24 34 07.4 q 160
2019-06-30 20:40:41 C 13 26 27.56 +24 34 02.2 q 160
2019-06-30 20:43:48 C 13 26 28.80 +24 33 57.4 q 160
2019-07-01 04:51:31 C 13 29 48.90 +24 20 18.2 V 703
2019-07-01 04:59:45 C 13 29 52.19 +24 20 04.0 V 703
2019-07-01 05:08:00 C 13 29 55.48 +24 19 49.5 V 703
2019-07-01 05:16:13 C 13 29 58.74 +24 19 35.1 V 703
2019-07-01 07:47:12 C 13 31 00.18 +24 15 28.1 V T08
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)