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
2019-07-01 07:51:18	C	13 31 01.80	+24 15 21.1	–	V	T08
2019-07-01 08:00:50	C	13 31 05.57	+24 15 04.3	–	V	T08
2019-07-01 08:15:35	C	13 31 11.41	+24 14 38.3	–	V	T08
2019-07-01 20:30:53	C	13 36 06.73	+23 53 20.1	–	q	160
2019-07-01 20:34:06	C	13 36 07.97	+23 53 14.4	–	q	160
2019-07-01 20:37:20	C	13 36 09.23	+23 53 09.1	–	q	160
2019-07-02 20:43:25	C	13 45 28.82	+23 11 09.3	–	q	160
2019-07-02 20:46:25	C	13 45 29.95	+23 11 03.6	–	q	160
2019-07-02 20:49:20	C	13 45 31.02	+23 10 58.5	–	q	160
2019-07-03 06:58:58	C	13 49 19.484	+22 53 22.68	–	U	F52
2019-07-03 07:18:23	C	13 49 26.503	+22 52 47.75	–	U	F52
2019-07-03 07:38:02	C	13 49 33.581	+22 52 12.45	–	U	F52
2019-07-07 07:42:07	C	14 21 59.18	+20 02 00.5	–	V	T08
2019-07-07 07:46:16	C	14 22 00.42	+20 01 53.2	–	V	T08
2019-07-07 08:00:45	C	14 22 04.72	+20 01 27.2	–	V	T08
2019-07-07 08:08:14	C	14 22 06.95	+20 01 13.7	–	V	T08
2019-07-08 04:38:06	C	14 28 16.60	+19 25 16.5	–	V	703
2019-07-08 04:46:18	C	14 28 18.90	+19 25 02.0	–	V	703
2019-07-08 04:54:28	C	14 28 21.30	+19 24 47.9	–	V	703
2019-07-08 05:02:39	C	14 28 23.62	+19 24 33.0	–	V	703
2019-07-10 21:25:52	C	14 46 11.38	+17 34 38.0	–	q	160
2019-07-10 21:28:47	C	14 46 12.10	+17 34 33.0	–	q	160
2019-07-10 21:31:39	C	14 46 12.86	+17 34 28.2	–	q	160
2019-07-11 00:02:40	S	14 46 52.963	+17 30 35.75	–	L	C51
2019-07-11 01:36:44	S	14 47 17.222	+17 27 59.44	–	L	C51
2019-07-13 07:44:05	C	15 00 32.34	+15 59 54.2	–	V	T08
2019-07-13 07:48:50	C	15 00 33.42	+15 59 46.4	–	V	T08
2019-07-13 07:59:34	C	15 00 35.79	+15 59 29.3	–	V	T08
2019-07-13 08:24:05	C	15 00 41.34	+15 58 50.0	–	V	T08
2019-07-14 22:24:40	C	15 09 15.07	+14 59 20.7	–	d	Z35
2019-07-15 07:59:22	C	15 11 19.26	+14 44 55.2	–	V	T05
2019-07-15 08:03:36	C	15 11 20.16	+14 44 48.7	–	V	T05
2019-07-15 08:19:07	C	15 11 23.34	+14 44 24.9	–	V	T05
2019-07-15 08:31:56	C	15 11 26.00	+14 44 05.0	–	V	T05
2019-07-15 23:06:44	C	15 14 30.88	+14 21 56.6	–	d	Z35
2019-07-15 23:11:11	C	15 14 31.82	+14 21 49.2	–	d	Z35
2019-07-15 23:22:45	C	15 14 34.15	+14 21 32.1	–	d	Z35
2019-07-15 23:43:34	C	15 14 38.43	+14 21 00.8	–	d	Z35
2019-07-16 21:37:58	C	15 19 07.98	+13 48 35.7	–	q	160
2019-07-16 21:40:48	C	15 19 08.51	+13 48 31.4	–	q	160
2019-07-16 21:43:40	C	15 19 09.09	+13 48 27.2	–	q	160
2019-07-18 08:08:38	C	15 25 52.99	+12 59 08.3	–	V	T05
2019-07-18 08:13:23	C	15 25 53.88	+12 59 01.6	–	V	T05
2019-07-18 08:22:06	C	15 25 55.44	+12 58 49.3	–	V	T05
2019-07-18 08:36:22	C	15 25 58.04	+12 58 28.3	–	V	T05
2019-07-19 19:58:35	S	15 32 31.802	+12 09 29.02	–	L	C51
2019-07-19 21:26:01	C	15 32 46.91	+12 07 10.5	–	V	A16
2019-07-19 21:59:49	C	15 32 52.83	+12 06 24.5	–	V	A16
2019-07-19 22:33:36	C	15 32 58.72	+12 05 38.0	–	V	A16
2019-07-19 23:07:04	S	15 33 05.690	+12 05 11.44	–	L	C51

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11500 Tomaiyowit (1989 UR)