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
2019-07-27 17:56:37 S 16 02 40.279 +08 13 28.38 – L C51
2019-07-27 21:04:57 S 16 03 06.82 +08 09 54.9 – L C51
2019-07-28 00:13:16 S 16 03 33.216 +08 06 23.69 – L C51
2019-07-28 03:21:46 S 16 03 59.54 +08 02 52.4 – L C51
2019-07-28 06:30:04 S 16 04 25.78 +07 59 22.0 – L C51
2019-07-28 09:38:24 S 16 04 51.90 +07 55 51.9 – L C51
2019-07-28 09:38:35 S 16 04 51.91 +07 55 52.4 – L C51
2019-07-28 15:55:13 S 16 05 43.92 +07 48 53.1 – L C51
2019-07-28 19:03:43 S 16 06 09.82 +07 45 25.2 – L C51
2019-07-28 22:12:02 S 16 06 35.63 +07 41 58.8 – L C51
2019-07-29 01:20:21 S 16 07 01.29 +07 38 29.7 – L C51
2019-07-29 04:28:07 S 16 07 26.86 +07 35 05.9 – L C51
2019-07-29 07:37:10 S 16 07 52.52 +07 31 39.0 – L C51
2019-07-29 13:53:59 S 16 08 43.346 +07 24 49.39 – L C51
2019-07-29 17:02:18 S 16 09 08.647 +07 21 24.52 – L C51
2019-07-29 20:10:48 S 16 09 33.948 +07 18 01.69 – L C51
2019-07-29 23:19:07 S 16 09 59.07 +07 14 39.5 – L C51
2019-07-30 02:27:26 S 16 10 24.14 +07 11 17.1 – L C51
2019-07-30 05:35:56 S 16 10 49.176 +07 07 55.92 – L C51
2019-07-30 07:10:00 S 16 11 01.60 +07 06 15.3 – L C51
2019-07-30 08:11:36 C 16 11 09.06 +07 05 04.2 – V T05
2019-07-30 08:16:29 C 16 11 09.70 +07 04 58.9 – V T05
2019-07-30 08:26:13 C 16 11 10.90 +07 04 48.4 – V T05
2019-07-30 08:40:58 C 16 11 12.81 +07 04 32.5 – V T05
2019-07-30 08:44:15 S 16 11 14.08 +07 04 34.7 – L C51
2019-07-30 10:18:30 S 16 11 26.51 +07 02 53.8 – L C51
2019-07-30 11:52:01 S 16 11 38.85 +07 01 16.0 – L C51
2019-07-30 13:26:49 S 16 11 51.32 +06 59 34.9 – L C51
2019-07-30 16:35:08 S 16 12 16.02 +06 56 15.2 – L C51
2019-07-30 16:35:19 S 16 12 16.07 +06 56 14.6 – L C51
2019-07-30 18:09:24 S 16 12 28.49 +06 54 37.4 – L C51
2019-07-30 21:17:42 S 16 12 53.03 +06 51 16.1 – L C51
2019-07-30 21:17:53 S 16 12 53.02 +06 51 16.3 – L C51
2019-07-30 22:51:57 S 16 13 05.28 +06 49 38.0 – L C51
2019-07-31 02:00:27 S 16 13 29.849 +06 46 19.38 – L C51
2019-07-31 03:34:31 S 16 13 41.99 +06 44 41.2 – L C51
2019-07-31 05:08:02 S 16 13 54.17 +06 43 03.8 – L C51
2019-07-31 06:43:01 S 16 14 06.43 +06 41 23.7 – L C51
2019-07-31 08:17:06 S 16 14 18.66 +06 39 46.2 – L C51
2019-07-31 09:51:21 S 16 14 30.806 +06 38 07.69 – L C51
2019-07-31 11:25:35 S 16 14 42.79 +06 36 29.8 – L C51
2019-07-31 12:58:56 S 16 14 54.93 +06 34 54.1 – L C51
2019-07-31 12:59:06 S 16 14 55.01 +06 34 53.2 – L C51
2019-07-31 14:33:55 S 16 15 07.09 +06 33 13.4 – L C51
2019-07-31 16:08:10 S 16 15 19.26 +06 31 36.9 – L C51
2019-07-31 17:42:13 S 16 15 31.27 +06 29 59.0 – L C51
2019-07-31 19:16:28 S 16 15 43.35 +06 28 22.2 – L C51
2019-07-31 20:50:44 S 16 15 55.33 +06 26 45.2 – L C51
2019-08-01 03:06:49 S 16 16 43.29 +06 20 19.6 – L C51
2019-08-01 04:40:53 S 16 16 55.26 +06 18 43.0 – 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)