13553 Masaakikoyama (1992 JE)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4635501542 ± 5.43e-09
Semi-major axis (a)2.1900075759 AU ± 4.06e-10
Inclination (i)5.87466809° ± 5.29e-07
Long. of Asc. Node (Ω)193.43977646° ± 5.35e-06
Arg. of Perihelion (ω)110.01797535° ± 5.72e-06
Mean Anomaly (M)94.83537244° ± 6.73e-07
Mean Motion (n)0.3041192077°/day ± 8.45e-11
Perihelion dist (q)1.17482923 AU ± 1.19e-08
Aphelion dist (Q)3.20518593 AU ± 1.19e-08
Orbital Period3.24092086 yr ± 9.01e-10
Physical Parameters
H (abs. magnitude)16.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.148″
Uncertainty0
Orbit TypeAmor
MOID0.188965 AU
Observations Used1890
Gaia Obs Used91
Oppositions26
Arc Total1979-2025
First Observation Used1979-06-24
Last Observation Used2025-12-23
Observations (2063)
Date Type RA Dec Mag Band Observatory
2018-11-08 09:53:09 C 23 49 45.49 -03 36 29.2 U T05
2018-11-08 10:07:28 C 23 49 46.20 -03 36 26.8 U T05
2018-11-09 04:15:17 C 23 50 43.07 -03 34 11.9 V 703
2018-11-09 04:22:54 C 23 50 43.47 -03 34 09.9 V 703
2018-11-09 04:30:31 C 23 50 43.84 -03 34 09.4 V 703
2018-11-09 04:38:09 C 23 50 44.32 -03 34 09.0 V 703
2018-11-10 08:56:18 C 23 52 12.60 -03 30 13.5 U T08
2018-11-10 09:10:46 C 23 52 13.29 -03 30 11.4 U T08
2018-11-10 09:25:02 C 23 52 14.00 -03 30 09.4 U T08
2018-11-10 09:39:24 C 23 52 14.73 -03 30 07.4 U T08
2018-11-12 04:50:28 C 23 54 31.60 -03 23 36.2 V 703
2018-11-12 04:58:01 C 23 54 31.97 -03 23 34.8 V 703
2018-11-12 05:05:34 C 23 54 32.35 -03 23 33.9 V 703
2018-11-12 05:13:08 C 23 54 32.73 -03 23 32.4 V 703
2018-11-12 09:04:38 C 23 54 44.85 -03 22 53.3 U T05
2018-11-12 09:18:55 C 23 54 45.58 -03 22 51.1 U T05
2018-11-12 09:33:09 C 23 54 46.31 -03 22 48.5 U T05
2018-11-12 09:47:19 C 23 54 47.03 -03 22 45.9 U T05
2018-11-13 04:47:53 C 23 55 48.03 -03 19 39.0 V G96
2018-11-13 04:55:20 C 23 55 48.42 -03 19 37.7 V G96
2018-11-13 05:02:46 C 23 55 48.78 -03 19 36.4 V G96
2018-11-13 05:10:11 C 23 55 49.17 -03 19 35.1 V G96
2018-11-20 08:37:39 C 00 05 09.24 -02 45 18.4 U T05
2018-11-20 08:50:26 C 00 05 09.87 -02 45 16.2 U T05
2018-11-20 08:53:10 C 00 05 10.06 -02 45 16.5 U T05
2018-11-20 09:04:04 C 00 05 10.64 -02 45 12.8 U T05
2018-11-20 09:18:44 C 00 05 11.49 -02 45 10.3 U T05
2018-11-28 04:35:45 C 00 15 46.80 -01 57 47.4 V 703
2018-11-28 04:43:30 C 00 15 47.26 -01 57 45.6 V 703
2018-11-28 04:51:14 C 00 15 47.68 -01 57 43.7 V 703
2018-11-28 04:58:58 C 00 15 48.09 -01 57 41.0 V 703
2018-11-28 08:02:48 C 00 15 58.64 -01 56 49.3 U T05
2018-11-28 08:17:07 C 00 15 59.44 -01 56 44.4 U T05
2018-11-28 08:31:31 C 00 16 00.23 -01 56 40.8 U T05
2018-11-28 08:45:51 C 00 16 01.03 -01 56 36.8 U T05
2018-11-29 04:29:31 C 00 17 09.40 -01 51 06.1 V 703
2018-11-29 04:37:07 C 00 17 09.76 -01 51 04.0 V 703
2018-11-29 04:44:43 C 00 17 10.35 -01 51 02.6 V 703
2018-11-29 04:52:19 C 00 17 10.77 -01 51 01.5 V 703
2018-11-30 07:50:46 C 00 18 44.31 -01 43 18.6 U T08
2018-11-30 08:03:37 C 00 18 45.07 -01 43 15.8 U T08
2018-11-30 08:09:41 C 00 18 45.37 -01 43 13.3 U T08
2018-11-30 08:16:35 C 00 18 45.78 -01 43 10.7 U T08
2018-11-30 08:22:39 C 00 18 46.10 -01 43 09.4 U T08
2018-11-30 08:29:32 C 00 18 46.49 -01 43 06.4 U T08
2018-11-30 08:35:34 C 00 18 46.84 -01 43 05.7 U T08
2018-11-30 08:48:43 C 00 18 47.55 -01 43 01.1 U T08
2018-12-04 04:02:13 C 00 24 07.86 -01 15 57.0 U I41
2018-12-04 04:26:24 C 00 24 09.24 -01 15 49.4 U I41
2018-12-04 21:04:06 S 00 25 08.24 -01 10 38.1 L C51