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
2005-06-14 00:08:42 C 16 24 27.76 +01 27 00.6 r 557
2005-06-14 00:30:12 C 16 24 27.65 +01 27 16.3 r 557
2005-06-14 00:39:52 C 16 24 27.59 +01 27 23.4 r 557
2005-06-15 05:12:16 C 16 24 28.41 +01 48 08.1 r 683
2005-06-15 05:50:50 C 16 24 28.13 +01 48 36.9 r 683
2005-06-16 05:08:21 C 16 24 30.10 +02 05 00.2 r 683
2005-06-16 05:27:39 C 16 24 30.01 +02 05 15.1 r 683
2005-06-16 05:46:55 C 16 24 29.84 +02 05 29.6 r 683
2005-06-17 05:04:28 C 16 24 33.82 +02 21 28.1 r 683
2005-06-17 05:23:47 C 16 24 33.76 +02 21 41.8 r 683
2005-06-17 05:43:03 C 16 24 33.66 +02 21 55.9 r 683
2005-06-18 22:34:06 C 16 24 45.01 +02 48 53.6 r J94
2005-06-18 22:58:07 C 16 24 45.01 +02 49 08.7 r J94
2005-06-18 23:20:18 C 16 24 45.03 +02 49 23.0 r J94
2005-06-20 02:37:27 C 16 24 56.96 +03 06 47.4 c I06
2005-06-20 02:45:17 C 16 24 56.97 +03 06 52.3 c I06
2005-06-20 02:55:18 C 16 24 56.99 +03 06 58.4 c I06
2005-06-24 02:54:39 C 16 26 03.97 +04 02 46.5 c I06
2005-06-24 03:29:18 C 16 26 04.28 +04 03 04.9 c I06
2005-06-24 04:00:14 C 16 26 04.56 +04 03 21.6 c I06
2005-06-26 01:06:39 C 16 26 52.29 +04 27 06.4 r I77
2005-06-26 01:18:41 C 16 26 52.44 +04 27 12.3 r I77
2005-06-26 01:30:41 C 16 26 52.56 +04 27 18.1 r I77
2005-06-27 23:38:29 C 16 27 51.83 +04 48 22.6 r A13
2005-06-27 23:44:27 C 16 27 51.94 +04 48 25.3 r A13
2005-06-28 00:00:52 C 16 27 52.24 +04 48 32.5 r A13
2005-06-28 00:05:48 C 16 27 52.33 +04 48 34.8 r A13
2005-06-28 05:27:39 C 16 28 00.84 +04 51 02.0 15.8 c 704
2005-06-28 05:42:12 C 16 28 01.10 +04 51 08.8 16.7 c 704
2005-06-28 05:56:52 C 16 28 01.37 +04 51 15.5 15.9 c 704
2005-06-28 06:11:26 C 16 28 01.60 +04 51 22.3 15.8 c 704
2005-06-28 06:26:03 C 16 28 01.83 +04 51 29.2 15.5 c 704
2005-06-29 22:02:24 C 16 29 04.65 +05 07 55.2 15.2 o 160
2005-06-29 22:06:33 C 16 29 04.73 +05 07 56.7 15.1 o 160
2005-06-29 22:36:08 C 16 29 05.40 +05 08 08.7 15.1 o 160
2005-07-01 07:53:10 C 16 30 05.00 +05 20 45.7 15.1 o 644
2005-07-01 08:24:23 C 16 30 05.80 +05 20 56.7 15.1 o 644
2005-07-01 09:15:44 C 16 30 07.16 +05 21 14.6 15.1 o 644
2005-07-01 20:42:38 C 16 30 31.13 +05 25 10.5 r A30
2005-07-01 20:47:12 C 16 30 31.25 +05 25 12.0 r A30
2005-07-01 20:49:00 C 16 30 31.31 +05 25 12.7 r A30
2005-07-03 06:54:08 C 16 31 42.02 +05 36 22.8 r 703
2005-07-03 07:03:38 C 16 31 42.31 +05 36 25.5 r 703
2005-07-03 07:12:59 C 16 31 42.56 +05 36 28.6 r 703
2005-07-03 07:22:22 C 16 31 42.85 +05 36 31.3 r 703
2005-07-05 05:19:50 C 16 33 32.85 +05 49 20.4 c 691
2005-07-05 05:42:10 C 16 33 33.61 +05 49 26.0 c 691
2005-07-05 06:04:30 C 16 33 34.49 +05 49 33.9 c 691
2005-07-05 21:28:32 C 16 34 14.57 +05 53 08.4 15.1 r A24
2005-07-05 21:36:42 C 16 34 14.80 +05 53 10.4 r A30