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
2021-01-04 13:34:08	S	06 47 43.853	-55 57 10.91	–	V	C57
2021-01-04 13:34:08	s	1 +75127.813	0 +357952.85	880.0	–	C57
2021-01-04 13:44:08	S	06 47 43.063	-55 57 34.38	–	V	C57
2021-01-04 13:44:08	s	1 +74808.730	0 +358245.67	40.0	–	C57
2021-01-04 13:54:08	S	06 47 42.348	-55 57 57.38	–	V	C57
2021-01-04 13:54:08	s	1 +74489.431	0 +358537.45	8910.0	–	C57
2021-01-04 14:04:08	S	06 47 41.777	-55 58 19.74	–	V	C57
2021-01-04 14:04:08	s	1 +74169.918	0 +358828.18	7490.0	–	C57
2021-01-04 14:14:08	S	06 47 41.131	-55 58 42.31	–	V	C57
2021-01-04 14:14:08	s	1 +73850.192	0 +359117.87	5790.0	–	C57
2021-01-04 14:24:08	S	06 47 40.260	-55 59 06.58	–	V	C57
2021-01-04 14:24:08	s	1 +73530.254	0 +359406.52	3810.0	–	C57
2021-01-04 14:34:08	S	06 47 39.662	-55 59 29.04	–	V	C57
2021-01-04 14:34:08	s	1 +73210.106	0 +359694.12	1550.0	–	C57
2021-01-04 14:44:08	S	06 47 38.981	-55 59 51.58	–	V	C57
2021-01-04 14:44:08	s	1 +72889.749	0 +359980.68	9010.0	–	C57
2021-01-04 14:54:08	S	06 47 38.268	-56 00 15.34	–	V	C57
2021-01-04 14:54:08	s	1 +72569.184	0 +360266.20	6190.0	–	C57
2021-01-04 15:04:08	S	06 47 37.538	-56 00 36.94	–	V	C57
2021-01-04 15:04:08	s	1 +72248.413	0 +360550.69	3100.0	–	C57
2021-01-04 15:14:08	S	06 47 36.890	-56 01 00.23	–	V	C57
2021-01-04 15:14:08	s	1 +71927.437	0 +360834.13	9740.0	–	C57
2021-01-04 15:24:08	S	06 47 36.178	-56 01 23.88	–	V	C57
2021-01-04 15:24:08	s	1 +71606.256	0 +361116.54	6100.0	–	C57
2021-01-04 15:34:08	S	06 47 35.369	-56 01 46.56	–	V	C57
2021-01-04 15:34:08	s	1 +71284.874	0 +361397.92	2190.0	–	C57
2021-01-04 15:44:08	S	06 47 34.934	-56 02 08.88	–	V	C57
2021-01-04 15:44:08	s	1 +70963.290	0 +361678.25	8020.0	–	C57
2021-01-04 15:54:08	S	06 47 34.130	-56 02 30.80	–	V	C57
2021-01-04 15:54:08	s	1 +70641.506	0 +361957.56	3580.0	–	C57
2021-01-04 16:04:08	S	06 47 33.422	-56 02 54.71	–	V	C57
2021-01-04 16:04:08	s	1 +70319.523	0 +362235.83	8880.0	–	C57
2021-01-04 16:14:08	S	06 47 32.801	-56 03 16.31	–	V	C57
2021-01-04 16:14:08	s	1 +69997.343	0 +362513.07	3910.0	–	C57
2021-01-04 16:24:08	S	06 47 32.002	-56 03 40.72	–	V	C57
2021-01-04 16:24:08	s	1 +69674.967	0 +362789.28	8680.0	–	C57
2021-01-04 16:34:08	S	06 47 31.382	-56 04 04.01	–	V	C57
2021-01-04 16:34:08	s	1 +69352.397	0 +363064.46	3200.0	–	C57
2021-01-04 16:44:08	S	06 47 30.713	-56 04 26.72	–	V	C57
2021-01-04 16:44:08	s	1 +69029.632	0 +363338.61	7450.0	–	C57
2021-01-04 16:54:08	S	06 47 29.974	-56 04 48.83	–	V	C57
2021-01-04 16:54:08	s	1 +68706.675	0 +363611.73	1450.0	–	C57
2021-01-04 17:04:08	S	06 47 29.167	-56 05 12.55	–	V	C57
2021-01-04 17:04:08	s	1 +68383.528	0 +363883.83	5200.0	–	C57
2021-01-04 17:14:08	S	06 47 28.620	-56 05 34.94	–	V	C57
2021-01-04 17:14:08	s	1 +68060.190	0 +364154.90	8690.0	–	C57
2021-01-04 17:24:08	S	06 47 28.001	-56 05 57.84	–	V	C57
2021-01-04 17:24:08	s	1 +67736.664	0 +364424.94	1940.0	–	C57
2021-01-04 17:34:08	S	06 47 27.156	-56 06 21.71	–	V	C57
2021-01-04 17:34:08	s	1 +67412.950	0 +364693.96	4930.0	–	C57

« Prev 1 2 … 164 165 166 … 380 381 Next » 19002 observations

12538 (1998 OH)