12538 — IAA Minor Planet Database

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.4059016556 ± 4.35e-09
Semi-major axis (a)	1.5415724184 AU ± 7.25e-10
Inclination (i)	24.53563599° ± 8.41e-07
Long. of Asc. Node (Ω)	220.68792372° ± 1.75e-06
Arg. of Perihelion (ω)	321.78911043° ± 1.84e-06
Mean Anomaly (M)	163.00612547° ± 9.55e-07
Mean Motion (n)	0.5149515611°/day ± 3.63e-10
Perihelion dist (q)	0.91584562 AU ± 6.72e-09
Aphelion dist (Q)	2.16729922 AU ± 6.78e-09
Orbital Period	1.91401747 yr ± 1.35e-09

Physical Parameters

H (abs. magnitude)	15.96
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-05-31
RMS Residual	0.272″
Uncertainty	0
Orbit Type	Apollo
MOID	0.029256 AU
Observations Used	10512
Radar Obs Used	1
Gaia Obs Used	113
Oppositions	14
Arc Total	1987-2025
First Observation Used	1987-08-22
Last Observation Used	2025-12-01

Observations (19002)

Date	Type	RA	Dec	Mag	Band	Observatory
2021-01-02 09:44:08	S	06 50 54.341	-53 54 41.87	–	V	C57
2021-01-02 09:44:08	s	1 +153818.40	2 +208586.06	3750.0	–	C57
2021-01-02 09:54:08	S	06 50 54.024	-53 55 05.63	–	V	C57
2021-01-02 09:54:08	s	1 +153680.58	8 +209285.66	780.0	–	C57
2021-01-02 10:04:08	S	06 50 53.412	-53 55 30.58	–	V	C57
2021-01-02 10:04:08	s	1 +153541.52	5 +209983.56	6070.0	–	C57
2021-01-02 10:14:08	S	06 50 52.978	-53 55 54.84	–	V	C57
2021-01-02 10:14:08	s	1 +153401.22	1 +210679.76	9640.0	–	C57
2021-01-02 10:24:08	S	06 50 52.222	-53 56 19.00	–	V	C57
2021-01-02 10:24:08	s	1 +153259.68	4 +211374.26	1490.0	–	C57
2021-01-02 10:34:08	S	06 50 51.708	-53 56 42.94	–	V	C57
2021-01-02 10:34:08	s	1 +153116.92	1 +212067.08	1630.0	–	C57
2021-01-02 10:44:08	S	06 50 51.374	-53 57 07.38	–	V	C57
2021-01-02 10:44:08	s	1 +152972.94	1 +212758.20	80.0	–	C57
2021-01-02 10:54:08	S	06 50 50.743	-53 57 32.18	–	V	C57
2021-01-02 10:54:08	s	1 +152827.75	1 +213447.64	6850.0	–	C57
2021-01-02 11:04:08	S	06 50 50.165	-53 57 56.66	–	V	C57
2021-01-02 11:04:08	s	1 +152681.35	9 +214135.40	1950.0	–	C57
2021-01-02 11:14:08	S	06 50 49.586	-53 58 20.96	–	V	C57
2021-01-02 11:14:08	s	1 +152533.77	2 +214821.49	5390.0	–	C57
2021-01-02 11:24:08	S	06 50 49.236	-53 58 44.76	–	V	C57
2021-01-02 11:24:08	s	1 +152384.99	8 +215505.90	7180.0	–	C57
2021-01-02 11:34:08	S	06 50 48.650	-53 59 09.42	–	V	C57
2021-01-02 11:34:08	s	1 +152235.04	4 +216188.64	7330.0	–	C57
2021-01-02 11:44:08	S	06 50 48.125	-53 59 33.04	–	V	C57
2021-01-02 11:44:08	s	1 +152083.91	7 +216869.71	5860.0	–	C57
2021-01-02 11:54:08	S	06 50 47.551	-53 59 57.34	–	V	C57
2021-01-02 11:54:08	s	1 +151931.62	6 +217549.12	2760.0	–	C57
2021-01-02 12:04:08	S	06 50 46.920	-54 00 22.90	–	V	C57
2021-01-02 12:04:08	s	1 +151778.17	7 +218226.88	8060.0	–	C57
2021-01-02 12:14:08	S	06 50 46.610	-54 00 46.55	–	V	C57
2021-01-02 12:14:08	s	1 +151623.57	7 +218902.97	1760.0	–	C57
2021-01-02 12:24:08	S	06 50 45.984	-54 01 10.99	–	V	C57
2021-01-02 12:24:08	s	1 +151467.83	4 +219577.42	3870.0	–	C57
2021-01-02 12:34:08	S	06 50 45.403	-54 01 35.22	–	V	C57
2021-01-02 12:34:08	s	1 +151310.95	5 +220250.22	4410.0	–	C57
2021-01-02 12:44:08	S	06 50 44.844	-54 01 59.09	–	V	C57
2021-01-02 12:44:08	s	1 +151152.94	6 +220921.37	3380.0	–	C57
2021-01-02 12:54:08	S	06 50 44.395	-54 02 22.56	–	V	C57
2021-01-02 12:54:08	s	1 +150993.81	5 +221590.88	800.0	–	C57
2021-01-02 13:04:08	S	06 50 43.870	-54 02 48.37	–	V	C57
2021-01-02 13:04:08	s	1 +150833.56	9 +222258.75	6660.0	–	C57
2021-01-02 13:14:08	S	06 50 43.375	-54 03 12.24	–	V	C57
2021-01-02 13:14:08	s	1 +150672.21	4 +222924.99	990.0	–	C57
2021-01-02 13:24:08	S	06 50 42.751	-54 03 36.79	–	V	C57
2021-01-02 13:24:08	s	1 +150509.75	8 +223589.60	3790.0	–	C57
2021-01-02 13:34:08	S	06 50 42.158	-54 03 59.69	–	V	C57
2021-01-02 13:34:08	s	1 +150346.20	7 +224252.58	5080.0	–	C57
2021-01-02 13:44:08	S	06 50 41.714	-54 04 24.38	–	V	C57
2021-01-02 13:44:08	s	1 +150181.56	7 +224913.93	4850.0	–	C57

« Prev 1 2 … 152 153 154 … 380 381 Next » 19002 observations

12538 (1998 OH)