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
2020-12-29 08:34:08	S	06 53 44.028	-50 11 36.92	–	V	C57
2020-12-29 08:34:08	s	1 -192729.58	1 +127135.12	930.0	–	C57
2020-12-29 08:44:08	S	06 53 43.452	-50 12 00.65	–	V	C57
2020-12-29 08:44:08	s	1 -192604.78	3 +126343.74	5170.0	–	C57
2020-12-29 08:54:08	S	06 53 42.948	-50 12 21.56	–	V	C57
2020-12-29 08:54:08	s	1 -192477.76	6 +125550.93	6080.0	–	C57
2020-12-29 09:04:08	S	06 53 42.502	-50 12 43.45	–	V	C57
2020-12-29 09:04:08	s	1 -192348.51	8 +124756.67	3640.0	–	C57
2020-12-29 09:14:08	S	06 53 42.019	-50 13 04.98	–	V	C57
2020-12-29 09:14:08	s	1 -192217.02	2 +123960.96	7840.0	–	C57
2020-12-29 09:24:08	S	06 53 41.753	-50 13 27.48	–	V	C57
2020-12-29 09:24:08	s	1 -192083.26	6 +123163.81	8640.0	–	C57
2020-12-29 09:34:08	S	06 53 41.184	-50 13 48.94	–	V	C57
2020-12-29 09:34:08	s	1 -191947.23	5 +122365.21	6030.0	–	C57
2020-12-29 09:44:08	S	06 53 40.656	-50 14 11.00	–	V	C57
2020-12-29 09:44:08	s	1 -191808.91	5 +121565.16	9990.0	–	C57
2020-12-29 09:54:08	S	06 53 40.224	-50 14 32.24	–	V	C57
2020-12-29 09:54:08	s	1 -191668.29	0 +120763.67	500.0	–	C57
2020-12-29 10:04:08	S	06 53 39.787	-50 14 53.88	–	V	C57
2020-12-29 10:04:08	s	1 -191525.34	7 +119960.72	7530.0	–	C57
2020-12-29 10:14:08	S	06 53 39.283	-50 15 15.59	–	V	C57
2020-12-29 10:14:08	s	1 -191380.06	9 +119156.33	1060.0	–	C57
2020-12-29 10:24:08	S	06 53 38.750	-50 15 37.08	–	V	C57
2020-12-29 10:24:08	s	1 -191232.44	3 +118350.49	1070.0	–	C57
2020-12-29 10:34:08	S	06 53 38.278	-50 15 58.28	–	V	C57
2020-12-29 10:34:08	s	1 -191082.45	3 +117543.19	7530.0	–	C57
2020-12-29 11:24:08	S	06 53 35.863	-50 17 48.19	–	V	C57
2020-12-29 11:24:08	s	1 -190296.50	0 +113484.92	5880.0	–	C57
2020-12-29 11:34:08	S	06 53 35.558	-50 18 10.08	–	V	C57
2020-12-29 11:34:08	s	1 -190131.99	8 +112668.90	600.0	–	C57
2020-12-29 11:44:08	S	06 53 35.086	-50 18 30.85	–	V	C57
2020-12-29 11:44:08	s	1 -189965.02	2 +111851.43	1600.0	–	C57
2020-12-29 11:54:08	S	06 53 34.658	-50 18 52.31	–	V	C57
2020-12-29 11:54:08	s	1 -189795.55	5 +111032.50	8870.0	–	C57
2020-12-29 12:04:08	S	06 53 34.154	-50 19 14.23	–	V	C57
2020-12-29 12:04:08	s	1 -189623.58	0 +110212.12	2380.0	–	C57
2020-12-29 12:14:08	S	06 53 33.706	-50 19 35.51	–	V	C57
2020-12-29 12:14:08	s	1 -189449.08	1 +109390.28	2100.0	–	C57
2020-12-29 12:24:08	S	06 53 33.322	-50 19 57.25	–	V	C57
2020-12-29 12:24:08	s	1 -189272.04	0 +108566.99	8020.0	–	C57
2020-12-29 12:34:08	S	06 53 32.899	-50 20 17.95	–	V	C57
2020-12-29 12:34:08	s	1 -189092.44	2 +107742.24	110.0	–	C57
2020-12-29 12:44:08	S	06 53 32.326	-50 20 40.27	–	V	C57
2020-12-29 12:44:08	s	1 -188910.26	7 +106916.03	8330.0	–	C57
2020-12-29 12:54:08	S	06 53 31.793	-50 21 00.65	–	V	C57
2020-12-29 12:54:08	s	1 -188725.50	0 +106088.37	2670.0	–	C57
2020-12-29 13:04:08	S	06 53 31.553	-50 21 23.33	–	V	C57
2020-12-29 13:04:08	s	1 -188538.12	2 +105259.24	3100.0	–	C57
2020-12-29 13:14:08	S	06 53 31.058	-50 21 44.86	–	V	C57
2020-12-29 13:14:08	s	1 -188348.11	6 +104428.67	9590.0	–	C57

« Prev 1 2 … 142 143 144 … 380 381 Next » 19002 observations

12538 (1998 OH)