IAA RAS IAA Minor Planet Database

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
2019-08-01 06:15:52 S 16 17 07.39 +06 17 05.6 – L C51
2019-08-01 07:49:56 S 16 17 19.17 +06 15 29.7 – L C51
2019-08-01 07:50:07 S 16 17 19.22 +06 15 29.4 – L C51
2019-08-01 09:24:11 S 16 17 31.142 +06 13 52.72 – L C51
2019-08-01 10:58:26 S 16 17 42.99 +06 12 16.7 – L C51
2019-08-01 12:32:41 S 16 17 54.92 +06 10 41.3 – L C51
2019-08-01 14:06:44 S 16 18 06.82 +06 09 07.4 – L C51
2019-08-01 15:41:00 S 16 18 18.54 +06 07 29.8 – L C51
2019-08-01 17:15:15 S 16 18 30.41 +06 05 54.6 – L C51
2019-08-01 18:49:19 S 16 18 42.19 +06 04 20.3 – L C51
2019-08-01 20:23:34 S 16 18 54.02 +06 02 45.3 – L C51
2019-08-01 20:36:49 C 16 18 55.31 +06 02 19.0 – q 160
2019-08-01 20:39:50 C 16 18 55.66 +06 02 15.7 – q 160
2019-08-01 20:42:49 C 16 18 56.08 +06 02 13.1 – q 160
2019-08-01 21:57:48 S 16 19 05.81 +06 01 09.4 – L C51
2019-08-01 23:31:53 S 16 19 17.55 +05 59 35.5 – L C51
2019-08-02 01:06:08 S 16 19 29.28 +05 58 00.4 – L C51
2019-08-02 02:40:23 S 16 19 41.05 +05 56 25.6 – L C51
2019-08-02 04:13:54 S 16 19 52.66 +05 54 53.5 – L C51
2019-08-02 10:31:16 S 16 20 39.44 +05 48 36.0 – L C51
2019-08-02 13:39:46 S 16 21 02.738 +05 45 29.09 – L C51
2019-08-02 16:48:05 S 16 21 25.78 +05 42 22.0 – L C51
2019-08-02 19:56:24 S 16 21 49.06 +05 39 16.0 – L C51
2019-08-02 23:04:54 S 16 22 12.33 +05 36 07.8 – L C51
2019-08-03 02:13:13 S 16 22 35.150 +05 33 04.54 – L C51
2019-08-03 08:30:02 S 16 23 21.07 +05 26 55.7 – L C51
2019-08-03 11:38:21 S 16 23 43.94 +05 23 51.4 – L C51
2019-08-03 14:46:52 S 16 24 06.69 +05 20 48.3 – L C51
2019-08-03 17:55:10 S 16 24 29.44 +05 17 45.9 – L C51
2019-08-03 20:24:14 C 16 24 47.18 +05 15 09.5 – q 160
2019-08-03 20:27:06 C 16 24 47.47 +05 15 07.8 – q 160
2019-08-03 20:29:55 C 16 24 47.76 +05 15 05.1 – q 160
2019-08-03 21:03:29 S 16 24 52.17 +05 14 44.6 – L C51
2019-08-04 00:11:59 S 16 25 14.81 +05 11 41.5 – L C51
2019-08-04 03:19:35 S 16 25 37.23 +05 08 43.3 – L C51
2019-08-11 19:00:15 S 16 46 17.86 +02 25 54.1 – L C51
2019-08-12 01:16:53 S 16 46 57.89 +02 20 48.6 – L C51
2019-08-12 04:25:24 S 16 47 17.96 +02 18 14.3 – L C51
2019-08-12 07:33:42 S 16 47 37.81 +02 15 43.8 – L C51
2019-08-12 10:42:02 S 16 47 57.83 +02 13 09.5 – L C51
2019-08-12 13:50:32 S 16 48 17.570 +02 10 38.21 – L C51
2019-08-12 16:58:51 S 16 48 37.48 +02 08 06.8 – L C51
2019-08-12 20:07:21 S 16 48 57.47 +02 05 33.7 – L C51
2019-08-12 21:41:24 S 16 49 07.29 +02 04 19.5 – L C51
2019-08-12 22:46:11 C 16 49 13.69 +02 03 19.7 – q G40
2019-08-12 23:06:00 C 16 49 15.72 +02 03 03.6 – q G40
2019-08-12 23:26:00 C 16 49 17.74 +02 02 47.9 – q G40
2019-08-13 02:23:59 S 16 49 36.94 +02 00 35.5 – L C51
2019-08-13 07:06:33 S 16 50 06.52 +01 56 47.8 – L C51
2019-08-13 14:57:37 S 16 50 55.77 +01 50 37.7 – L C51
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)