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
2021-01-07 23:44:08	s	1 -88666.508	0 +388581.43	6660.0	–	C57
2021-01-07 23:54:08	S	06 41 24.398	-58 57 01.51	–	V	C57
2021-01-07 23:54:08	s	1 -88978.920	0 +388426.18	4020.0	–	C57
2021-01-08 00:04:08	S	06 41 23.527	-58 57 22.54	–	V	C57
2021-01-08 00:04:08	s	1 -89291.127	0 +388270.07	1080.0	–	C57
2021-01-08 00:14:08	S	06 41 22.733	-58 57 42.55	–	V	C57
2021-01-08 00:14:08	s	1 -89603.126	0 +388113.09	7830.0	–	C57
2021-01-08 00:24:08	S	06 41 21.893	-58 58 03.54	–	V	C57
2021-01-08 00:24:08	s	1 -89914.917	0 +387955.25	4270.0	–	C57
2021-01-08 00:34:08	S	06 41 20.909	-58 58 25.03	–	V	C57
2021-01-08 00:34:08	s	1 -90226.499	0 +387796.54	400.0	–	C57
2021-01-08 00:44:08	S	06 41 20.215	-58 58 44.94	–	V	C57
2021-01-08 00:44:08	s	1 -90537.872	0 +387636.96	6220.0	–	C57
2021-01-08 00:54:08	S	06 41 19.394	-58 59 05.46	–	V	C57
2021-01-08 00:54:08	s	1 -90849.034	0 +387476.51	1730.0	–	C57
2021-01-08 01:04:08	S	06 41 18.434	-58 59 27.24	–	V	C57
2021-01-08 01:04:08	s	1 -91159.985	0 +387315.20	6920.0	–	C57
2021-01-08 01:14:08	S	06 41 17.645	-58 59 47.58	–	V	C57
2021-01-08 01:14:08	s	1 -91470.724	0 +387153.03	1800.0	–	C57
2021-01-08 01:24:08	S	06 41 16.817	-59 00 07.70	–	V	C57
2021-01-08 01:24:08	s	1 -91781.250	0 +386989.98	6360.0	–	C57
2021-01-08 01:34:08	S	06 41 15.758	-59 00 29.77	–	V	C57
2021-01-08 01:34:08	s	1 -92091.562	0 +386826.07	610.0	–	C57
2021-01-08 01:44:08	S	06 41 15.082	-59 00 49.61	–	V	C57
2021-01-08 01:44:08	s	1 -92401.659	0 +386661.29	4530.0	–	C57
2021-01-08 01:52:44	C	06 41 23.80	-58 43 27.1	–	q	834
2021-01-08 01:54:08	S	06 41 14.393	-59 01 09.77	–	V	C57
2021-01-08 01:54:08	s	1 -92711.541	0 +386495.64	8140.0	–	C57
2021-01-08 02:04:08	S	06 41 13.457	-59 01 31.58	–	V	C57
2021-01-08 02:04:08	s	1 -93021.207	0 +386329.12	1430.0	–	C57
2021-01-08 02:14:08	S	06 41 12.691	-59 01 51.56	–	V	C57
2021-01-08 02:14:08	s	1 -93330.656	0 +386161.74	4390.0	–	C57
2021-01-08 02:24:08	S	06 41 11.813	-59 02 12.84	–	V	C57
2021-01-08 02:24:08	s	1 -93639.887	0 +385993.49	7030.0	–	C57
2021-01-08 02:34:08	S	06 41 10.939	-59 02 33.58	–	V	C57
2021-01-08 02:34:08	s	1 -93948.899	0 +385824.37	9340.0	–	C57
2021-01-08 02:44:08	S	06 41 10.003	-59 02 54.24	–	V	C57
2021-01-08 02:44:08	s	1 -94257.691	0 +385654.38	1320.0	–	C57
2021-01-08 02:46:12	C	06 41 19.62	-58 45 18.3	–	q	834
2021-01-08 02:54:08	S	06 41 09.257	-59 03 14.40	–	V	C57
2021-01-08 02:54:08	s	1 -94566.263	0 +385483.52	2980.0	–	C57
2021-01-08 03:04:08	S	06 41 08.510	-59 03 35.21	–	V	C57
2021-01-08 03:04:08	s	1 -94874.613	0 +385311.80	4310.0	–	C57
2021-01-08 03:14:08	S	06 41 07.481	-59 03 55.58	–	V	C57
2021-01-08 03:14:08	s	1 -95182.741	0 +385139.20	5310.0	–	C57
2021-01-08 03:24:08	S	06 41 06.708	-59 04 16.57	–	V	C57
2021-01-08 03:24:08	s	1 -95490.647	0 +384965.73	5970.0	–	C57
2021-01-08 03:34:08	S	06 41 05.873	-59 04 37.88	–	V	C57
2021-01-08 03:34:08	s	1 -95798.328	0 +384791.40	6310.0	–	C57
2021-01-08 03:44:08	S	06 41 04.949	-59 04 58.51	–	V	C57

« Prev 1 2 … 182 183 184 … 380 381 Next » 19002 observations

12538 (1998 OH)