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
2018-07-26 13:03:19 C 21 14 24.54 +19 22 49.5 U T08
2018-07-26 13:17:22 C 21 14 26.13 +19 22 49.8 U T08
2018-07-27 00:23:32 C 21 15 50.74 +19 23 04.7 14.5 q J43
2018-07-27 00:37:32 C 21 15 52.32 +19 23 05.2 14.4 q J43
2018-07-27 00:51:29 C 21 15 53.88 +19 23 05.7 14.4 q J43
2018-07-27 01:05:26 C 21 15 55.43 +19 23 06.2 14.5 q J43
2018-07-27 01:19:47 C 21 15 57.05 +19 23 06.8 14.5 q J43
2018-07-27 01:33:43 C 21 15 58.61 +19 23 07.0 14.3 q J43
2018-07-27 01:47:47 C 21 16 00.19 +19 23 07.1 14.3 q J43
2018-07-27 02:01:50 C 21 16 01.75 +19 23 07.4 14.2 q J43
2018-07-27 11:10:27 C 21 17 09.91 +19 23 19.8 U T05
2018-07-27 11:24:58 C 21 17 11.52 +19 23 19.8 U T05
2018-07-27 11:50:32 C 21 17 14.33 +19 23 19.6 U T05
2018-07-27 11:51:11 C 21 17 14.40 +19 23 19.5 U T05
2018-07-28 00:36:39 C 21 18 48.58 +19 22 45.7 U K87
2018-07-28 00:44:47 C 21 18 49.51 +19 22 45.4 U K87
2018-07-28 00:51:18 C 21 18 50.25 +19 22 45.2 U K87
2018-07-28 12:11:56 C 21 20 13.07 +19 22 37.9 U T08
2018-07-28 12:38:37 C 21 20 16.00 +19 22 35.9 U T08
2018-07-28 12:39:57 C 21 20 16.15 +19 22 35.8 U T08
2018-07-28 12:54:23 C 21 20 17.73 +19 22 34.7 U T08
2018-07-30 12:20:50 C 21 26 01.84 +19 17 30.3 U T08
2018-07-30 12:37:00 C 21 26 03.56 +19 17 27.7 U T08
2018-07-30 12:50:56 C 21 26 05.06 +19 17 24.8 U T08
2018-07-30 13:04:48 C 21 26 06.56 +19 17 22.5 U T08
2018-07-30 20:56:49 C 21 27 05.86 +19 15 40.9 t K17
2018-07-30 22:02:28 C 21 27 13.12 +19 15 30.4 U G24
2018-07-30 22:20:01 C 21 27 15.19 +19 15 28.7 t K17
2018-07-30 22:30:48 C 21 27 16.27 +19 15 26.1 U G24
2018-07-30 22:56:26 C 21 27 19.10 +19 15 25.1 q 160
2018-07-30 22:59:23 C 21 27 19.43 +19 15 24.7 q 160
2018-07-30 23:02:17 C 21 27 19.75 +19 15 24.1 q 160
2018-07-30 23:38:51 C 21 27 23.89 +19 15 15.9 t K17
2018-07-31 00:10:15 C 21 27 27.41 +19 15 11.9 t K17
2018-07-31 00:52:38 C 21 27 31.98 +19 15 03.1 t K17
2018-07-31 02:15:39 C 21 27 41.32 +19 14 44.9 t K17
2018-07-31 20:51:13 C 21 29 55.41 +19 10 56.2 q K73
2018-07-31 20:57:31 C 21 29 56.16 +19 10 57.5 q K73
2018-07-31 21:02:58 C 21 29 56.71 +19 10 56.9 q K73
2018-07-31 21:32:01 C 21 30 00.09 +19 10 40.5 U Z52
2018-07-31 21:41:52 C 21 30 01.19 +19 10 38.5 U Z52
2018-07-31 21:51:08 C 21 30 02.24 +19 10 36.7 U Z52
2018-07-31 23:36:44 C 21 30 13.61 +19 10 20.9 q 160
2018-07-31 23:39:41 C 21 30 13.93 +19 10 20.3 q 160
2018-07-31 23:42:42 C 21 30 14.25 +19 10 19.6 q 160
2018-08-02 03:28:58 C 21 33 29.79 +19 03 04.0 q W19
2018-08-02 03:31:14 C 21 33 30.04 +19 03 03.5 q W19
2018-08-02 03:34:01 C 21 33 30.34 +19 03 02.8 q W19
2018-08-02 03:36:44 C 21 33 30.64 +19 03 02.1 q W19
2018-08-02 03:39:30 C 21 33 30.93 +19 03 01.3 q W19