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
2018-07-13 16:38:47 C 20 35 21.88 +17 27 34.8 q D29
2018-07-13 17:07:09 C 20 35 25.17 +17 27 54.4 q D29
2018-07-14 02:02:37 C 20 36 32.57 +17 33 52.6 d Z35
2018-07-14 02:19:14 C 20 36 34.46 +17 34 03.1 d Z35
2018-07-14 02:35:32 C 20 36 36.37 +17 34 14.5 d Z35
2018-07-14 22:03:23 C 20 39 06.66 +17 46 41.0 U Z52
2018-07-14 23:06:29 C 20 39 14.29 +17 47 21.8 U Z52
2018-07-14 23:52:50 C 20 39 19.86 +17 47 51.5 U Z52
2018-07-15 01:02:21 C 20 39 28.15 +17 48 35.5 U Z52
2018-07-15 21:42:14 C 20 42 07.10 +18 01 11.0 q K73
2018-07-15 21:47:33 C 20 42 07.69 +18 01 13.7 q K73
2018-07-15 21:54:46 C 20 42 08.61 +18 01 18.8 q K73
2018-07-15 22:01:12 C 20 42 09.31 +18 01 22.1 q K73
2018-07-15 22:07:40 C 20 42 10.06 +18 01 25.9 q K73
2018-07-15 22:07:52 C 20 42 10.37 +18 01 17.2 U Z52
2018-07-15 22:14:36 C 20 42 10.94 +18 01 30.4 q K73
2018-07-15 23:23:59 C 20 42 19.56 +18 02 03.1 U Z52
2018-07-16 00:33:05 C 20 42 27.84 +18 02 43.8 U Z52
2018-07-16 13:18:48 C 20 44 03.80 +18 10 18.1 U T05
2018-07-16 13:22:09 C 20 44 04.20 +18 10 19.7 U T05
2018-07-16 13:36:37 C 20 44 05.88 +18 10 27.4 U T05
2018-07-16 13:50:57 C 20 44 07.56 +18 10 34.9 U T05
2018-07-16 13:52:16 C 20 44 07.72 +18 10 35.5 U T05
2018-07-16 14:03:37 C 20 44 09.06 +18 10 41.4 U T05
2018-07-16 14:04:56 C 20 44 09.21 +18 10 42.1 U T05
2018-07-17 23:25:50 C 20 48 26.92 +18 27 45.2 d Z35
2018-07-17 23:44:27 C 20 48 29.31 +18 27 54.1 d Z35
2018-07-18 00:03:11 C 20 48 31.46 +18 28 03.4 d Z35
2018-07-18 02:35:53 C 20 48 52.29 +18 29 10.5 q W19
2018-07-18 02:39:32 C 20 48 52.74 +18 29 12.3 q W19
2018-07-18 02:42:47 C 20 48 53.15 +18 29 14.1 q W19
2018-07-18 02:45:49 C 20 48 53.51 +18 29 15.8 q W19
2018-07-18 02:48:51 C 20 48 53.88 +18 29 17.2 q W19
2018-07-18 20:12:14 C 20 51 06.87 +18 37 16.4 q K73
2018-07-18 20:17:52 C 20 51 07.62 +18 37 18.9 q K73
2018-07-18 20:24:31 C 20 51 08.39 +18 37 21.3 q K73
2018-07-18 23:04:26 C 20 51 28.24 +18 38 36.8 d Z35
2018-07-18 23:20:27 C 20 51 29.45 +18 38 39.9 r 106
2018-07-18 23:23:03 C 20 51 30.38 +18 38 44.0 d Z35
2018-07-18 23:38:38 C 20 51 31.60 +18 38 47.9 r 106
2018-07-18 23:41:48 C 20 51 32.64 +18 38 52.6 d Z35
2018-07-18 23:56:49 C 20 51 33.76 +18 38 55.9 r 106
2018-07-19 00:15:01 C 20 51 35.91 +18 39 03.8 r 106
2018-07-19 05:54:20 C 20 52 20.60 +18 41 34.4 u 719
2018-07-19 06:02:57 C 20 52 21.54 +18 41 34.5 463
2018-07-19 06:17:28 C 20 52 23.26 +18 41 40.9 463
2018-07-19 06:24:01 C 20 52 24.03 +18 41 43.8 463
2018-07-19 06:30:28 C 20 52 25.02 +18 41 51.5 u 719
2018-07-19 20:31:15 C 20 54 12.63 +18 47 16.8 V G34
2018-07-19 20:35:25 C 20 54 13.11 +18 47 18.6 V G34