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
2020-12-27 06:24:08	S	06 56 11.813	-48 17 44.77	–	V	C57
2020-12-27 06:24:08	s	1 -167407.73	5 +306766.77	320.0	–	C57
2020-12-27 06:34:08	S	06 56 11.352	-48 18 08.17	–	V	C57
2020-12-27 06:34:08	s	1 -167623.96	9 +306341.31	6760.0	–	C57
2020-12-27 06:44:08	S	06 56 11.018	-48 18 30.78	–	V	C57
2020-12-27 06:44:08	s	1 -167839.63	4 +305914.82	2330.0	–	C57
2020-12-27 06:54:08	S	06 56 10.351	-48 18 54.54	–	V	C57
2020-12-27 06:54:08	s	1 -168054.72	8 +305487.31	7040.0	–	C57
2020-12-27 07:04:08	S	06 56 09.960	-48 19 18.66	–	V	C57
2020-12-27 07:04:08	s	1 -168269.24	9 +305058.78	880.0	–	C57
2020-12-27 07:14:08	S	06 56 09.528	-48 19 42.17	–	V	C57
2020-12-27 07:14:08	s	1 -168483.19	6 +304629.22	3860.0	–	C57
2020-12-27 07:24:08	S	06 56 09.034	-48 20 04.85	–	V	C57
2020-12-27 07:24:08	s	1 -168696.56	7 +304198.63	5960.0	–	C57
2020-12-27 07:34:08	S	06 56 08.518	-48 20 28.61	–	V	C57
2020-12-27 07:34:08	s	1 -168909.35	8 +303767.02	7180.0	–	C57
2020-12-27 07:44:08	S	06 56 07.973	-48 20 51.97	–	V	C57
2020-12-27 07:44:08	s	1 -169121.56	9 +303334.37	7520.0	–	C57
2020-12-27 07:54:08	S	06 56 07.411	-48 21 15.16	–	V	C57
2020-12-27 07:54:08	s	1 -169333.19	6 +302900.70	6980.0	–	C57
2020-12-27 08:04:08	S	06 56 07.068	-48 21 38.66	–	V	C57
2020-12-27 08:04:08	s	1 -169544.23	9 +302466.00	5560.0	–	C57
2020-12-27 08:14:08	S	06 56 06.410	-48 22 03.40	–	V	C57
2020-12-27 08:14:08	s	1 -169754.69	4 +302030.27	3240.0	–	C57
2020-12-27 08:24:08	S	06 56 06.103	-48 22 26.87	–	V	C57
2020-12-27 08:24:08	s	1 -169964.56	0 +301593.50	40.0	–	C57
2020-12-27 08:34:08	S	06 56 05.542	-48 22 49.48	–	V	C57
2020-12-27 08:34:08	s	1 -170173.83	5 +301155.70	5940.0	–	C57
2020-12-27 08:44:08	S	06 56 05.078	-48 23 12.73	–	V	C57
2020-12-27 08:44:08	s	1 -170382.51	6 +300716.87	940.0	–	C57
2020-12-27 08:54:08	S	06 56 04.442	-48 23 35.59	–	V	C57
2020-12-27 08:54:08	s	1 -170590.60	2 +300277.00	5040.0	–	C57
2020-12-27 09:04:08	S	06 56 04.032	-48 24 00.18	–	V	C57
2020-12-27 09:04:08	s	1 -170798.08	9 +299836.10	8230.0	–	C57
2020-12-27 09:14:08	S	06 56 03.588	-48 24 23.11	–	V	C57
2020-12-27 09:14:08	s	1 -171004.97	7 +299394.16	520.0	–	C57
2020-12-27 09:24:08	S	06 56 03.101	-48 24 45.97	–	V	C57
2020-12-27 09:24:08	s	1 -171211.26	2 +298951.18	1900.0	–	C57
2020-12-27 09:34:08	S	06 56 02.513	-48 25 08.94	–	V	C57
2020-12-27 09:34:08	s	1 -171416.94	3 +298507.16	2360.0	–	C57
2020-12-27 09:44:08	S	06 56 02.002	-48 25 34.14	–	V	C57
2020-12-27 09:44:08	s	1 -171622.01	8 +298062.10	1910.0	–	C57
2020-12-27 09:54:08	S	06 56 01.630	-48 25 57.11	–	V	C57
2020-12-27 09:54:08	s	1 -171826.48	3 +297616.01	530.0	–	C57
2020-12-27 10:04:08	S	06 56 01.106	-48 26 19.97	–	V	C57
2020-12-27 10:04:08	s	1 -172030.33	8 +297168.87	8240.0	–	C57
2020-12-27 10:14:08	S	06 56 00.542	-48 26 43.22	–	V	C57
2020-12-27 10:14:08	s	1 -172233.58	0 +296720.68	5010.0	–	C57
2020-12-27 10:24:08	S	06 56 00.019	-48 27 07.06	–	V	C57
2020-12-27 10:24:08	s	1 -172436.20	6 +296271.46	860.0	–	C57

« Prev 1 2 … 130 131 132 … 380 381 Next » 19002 observations

12538 (1998 OH)