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
2018-05-25 23:55:34 C 18 32 50.61 -04 49 38.1 q 160
2018-05-25 23:58:47 C 18 32 50.88 -04 49 34.8 q 160
2018-05-26 12:29:49 C 18 33 54.09 -04 36 12.5 U T08
2018-05-26 12:46:26 C 18 33 55.39 -04 35 55.0 U T08
2018-05-26 13:04:00 C 18 33 56.77 -04 35 36.2 U T08
2018-05-26 13:20:48 C 18 33 58.07 -04 35 18.3 U T08
2018-06-05 13:47:03 C 18 55 03.44 +00 00 00.6 U T05
2018-06-05 13:49:08 C 18 55 03.61 +00 00 03.1 U T05
2018-06-05 14:08:30 C 18 55 05.23 +00 00 26.6 U T05
2018-06-11 13:37:59 C 19 08 28.50 +02 59 58.9 U T08
2018-06-11 13:48:12 C 19 08 29.41 +03 00 11.7 U T08
2018-06-11 14:03:54 C 19 08 30.79 +03 00 31.8 U T08
2018-06-12 19:28:37 C 19 11 22.93 +03 38 00.1 o L52
2018-06-12 19:30:12 C 19 11 23.10 +03 38 02.5 o L52
2018-06-12 19:38:14 C 19 11 23.77 +03 38 13.3 o L52
2018-06-12 19:39:48 C 19 11 23.91 +03 38 15.2 o L52
2018-06-13 13:53:40 C 19 13 08.20 +04 01 53.0 U T05
2018-06-13 14:09:47 C 19 13 09.65 +04 02 13.7 U T05
2018-06-13 14:17:25 C 19 13 10.34 +04 02 23.6 U T05
2018-06-13 14:27:48 C 19 13 11.28 +04 02 36.9 U T05
2018-06-15 17:45:36 C 19 18 15.96 +05 08 44.4 q D29
2018-06-15 18:31:24 C 19 18 19.95 +05 09 40.7 q D29
2018-06-15 23:59:12 C 19 18 53.64 +05 16 42.5 q 160
2018-06-16 00:02:16 C 19 18 53.92 +05 16 46.3 q 160
2018-06-16 00:05:20 C 19 18 54.17 +05 16 50.9 q 160
2018-06-17 00:23:47 C 19 21 20.64 +05 48 16.4 q 160
2018-06-17 00:27:00 C 19 21 20.94 +05 48 20.6 q 160
2018-06-17 00:30:14 C 19 21 21.25 +05 48 24.8 q 160
2018-06-17 13:47:29 C 19 22 40.95 +06 05 47.0 U T05
2018-06-17 14:03:55 C 19 22 42.48 +06 06 08.1 U T05
2018-06-17 14:19:46 C 19 22 43.98 +06 06 28.5 U T05
2018-06-17 14:35:24 C 19 22 45.45 +06 06 48.5 U T05
2018-06-18 23:39:17 C 19 26 10.48 +06 49 17.9 q 160
2018-06-18 23:42:27 C 19 26 10.79 +06 49 22.0 q 160
2018-06-18 23:45:45 C 19 26 11.10 +06 49 26.1 q 160
2018-06-19 23:03:58 C 19 28 36.85 +07 19 27.7 d Z35
2018-06-19 23:21:48 C 19 28 38.61 +07 19 50.7 d Z35
2018-06-19 23:39:40 C 19 28 40.35 +07 20 12.5 d Z35
2018-06-20 05:51:44 C 19 29 19.76 +07 28 13.4 u 719
2018-06-20 06:30:10 C 19 29 23.54 +07 29 03.9 u 719
2018-06-20 22:56:17 C 19 31 06.80 +07 50 00.9 q 160
2018-06-20 22:59:24 C 19 31 07.11 +07 50 04.9 q 160
2018-06-20 23:02:30 C 19 31 07.42 +07 50 08.9 q 160
2018-06-21 00:00:52 C 19 31 13.57 +07 51 26.0 d Z35
2018-06-21 00:21:16 C 19 31 15.59 +07 51 51.4 d Z35
2018-06-21 00:41:37 C 19 31 17.63 +07 52 17.6 d Z35
2018-06-21 06:09:04 C 19 31 52.94 +07 59 20.8 719
2018-06-21 06:55:04 C 19 31 57.47 +08 00 13.5 719
2018-06-21 12:54:43 C 19 32 34.20 +08 08 04.5 U T05
2018-06-21 13:10:39 C 19 32 35.75 +08 08 24.6 U T05