11500 Tomaiyowit — IAA Minor Planet Database

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 Period	1.12214731 yr ± 4.68e+00
NGA Model	r2
A2	-1.39339812e-06 AU/d²

Physical Parameters

H (abs. magnitude)	18.38
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-04-26
RMS Residual	0.347″
Uncertainty	0
Orbit Type	Apollo
MOID	0.034039 AU
Observations Used	1032
Oppositions	4
Arc Total	1989-2025
First Observation Used	1989-10-25
Last Observation Used	2025-11-10

Observations (1332)

Date	Type	RA	Dec	Mag	Band	Observatory
2019-07-23 07:10:43	S	15 46 39.18	+10 20 37.7	–	L	C51
2019-07-23 07:10:55	S	15 46 39.20	+10 20 36.8	–	L	C51
2019-07-23 08:44:58	S	15 46 54.276	+10 18 39.28	–	L	C51
2019-07-23 10:19:13	S	15 47 09.29	+10 16 41.2	–	L	C51
2019-07-23 11:53:18	S	15 47 24.27	+10 14 43.9	–	L	C51
2019-07-23 11:53:28	S	15 47 24.27	+10 14 43.2	–	L	C51
2019-07-23 13:27:33	S	15 47 39.257	+10 12 45.54	–	L	C51
2019-07-23 15:01:47	S	15 47 54.24	+10 10 48.7	–	L	C51
2019-07-23 16:36:02	S	15 48 09.14	+10 08 51.2	–	L	C51
2019-07-23 18:10:07	S	15 48 24.02	+10 06 55.0	–	L	C51
2019-07-23 19:44:22	S	15 48 38.90	+10 04 57.2	–	L	C51
2019-07-23 21:18:37	S	15 48 53.74	+10 03 01.1	–	L	C51
2019-07-23 22:52:40	S	15 49 08.52	+10 01 05.0	–	L	C51
2019-07-24 00:26:56	S	15 49 23.30	+09 59 08.4	–	L	C51
2019-07-24 02:01:11	S	15 49 38.08	+09 57 12.1	–	L	C51
2019-07-24 05:09:29	S	15 50 07.46	+09 53 21.1	–	L	C51
2019-07-24 08:17:49	S	15 50 36.71	+09 49 30.3	–	L	C51
2019-07-24 11:26:19	S	15 51 05.87	+09 45 39.7	–	L	C51
2019-07-24 14:34:38	S	15 51 34.92	+09 41 50.3	–	L	C51
2019-07-24 17:42:57	S	15 52 03.830	+09 38 00.71	–	L	C51
2019-07-24 20:39:11	C	15 52 30.33	+09 34 13.2	–	q	160
2019-07-24 20:42:12	C	15 52 30.79	+09 34 09.8	–	q	160
2019-07-24 20:45:14	C	15 52 31.24	+09 34 05.4	–	q	160
2019-07-24 20:51:27	S	15 52 32.664	+09 34 13.98	–	L	C51
2019-07-24 23:59:46	S	15 53 01.38	+09 30 26.7	–	L	C51
2019-07-25 03:08:16	S	15 53 29.99	+09 26 39.4	–	L	C51
2019-07-25 06:17:19	S	15 53 58.59	+09 22 51.7	–	L	C51
2019-07-25 12:33:57	S	15 54 55.21	+09 15 22.5	–	L	C51
2019-07-25 12:34:08	S	15 54 55.24	+09 15 21.9	–	L	C51
2019-07-25 15:42:27	S	15 55 23.39	+09 11 38.0	–	L	C51
2019-07-25 18:50:46	S	15 55 51.50	+09 07 54.7	–	L	C51
2019-07-25 21:59:16	S	15 56 19.37	+09 04 12.1	–	L	C51
2019-07-26 01:07:35	S	15 56 47.30	+09 00 30.3	–	L	C51
2019-07-26 04:15:55	S	15 57 14.98	+08 56 50.7	–	L	C51
2019-07-26 07:24:24	S	15 57 42.67	+08 53 08.7	–	L	C51
2019-07-26 07:51:15	C	15 57 45.98	+08 52 32.9	–	V	T05
2019-07-26 07:55:53	C	15 57 46.64	+08 52 27.4	–	V	T05
2019-07-26 08:06:03	C	15 57 48.06	+08 52 15.5	–	V	T05
2019-07-26 08:20:43	C	15 57 50.11	+08 51 58.7	–	V	T05
2019-07-26 10:32:44	S	15 58 10.24	+08 49 29.4	–	L	C51
2019-07-26 13:40:29	S	15 58 37.53	+08 45 52.1	–	L	C51
2019-07-26 16:49:32	S	15 59 04.96	+08 42 12.3	–	L	C51
2019-07-26 19:57:51	S	15 59 32.23	+08 38 34.2	–	L	C51
2019-07-26 23:06:11	S	15 59 59.38	+08 34 57.6	–	L	C51
2019-07-26 23:06:21	S	15 59 59.40	+08 34 56.5	–	L	C51
2019-07-27 02:14:40	S	16 00 26.470	+08 31 21.11	–	L	C51
2019-07-27 05:22:59	S	16 00 53.41	+08 27 45.4	–	L	C51
2019-07-27 08:31:30	S	16 01 20.29	+08 24 09.8	–	L	C51
2019-07-27 11:39:48	S	16 01 47.08	+08 20 34.8	–	L	C51
2019-07-27 14:48:08	S	16 02 13.82	+08 17 02.0	–	L	C51

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11500 Tomaiyowit (1989 UR)