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
2005-08-04 21:30:11 C 17 39 09.79 +03 42 33.8 r A30
2005-08-04 21:32:11 C 17 39 10.04 +03 42 32.7 r A30
2005-08-04 21:33:06 C 17 39 10.16 +03 42 32.2 r A30
2005-08-04 21:34:00 C 17 39 10.28 +03 42 31.7 r A30
2005-08-04 21:34:56 C 17 39 10.40 +03 42 31.1 r A30
2005-08-04 21:36:44 C 17 39 10.63 +03 42 30.1 r A30
2005-08-07 06:49:22 C 17 47 08.00 +03 08 49.8 t 608
2005-08-07 07:05:12 C 17 47 10.09 +03 08 40.0 t 608
2005-08-07 07:20:19 C 17 47 12.09 +03 08 30.8 t 608
2005-08-07 21:54:25 C 17 49 16.60 +02 59 11.2 c J93
2005-08-07 21:58:31 C 17 49 17.16 +02 59 08.1 c J93
2005-08-07 22:06:42 C 17 49 18.30 +02 59 03.3 c J93
2005-08-08 21:18:04 C 17 52 39.49 +02 44 13.4 r 084
2005-08-08 21:20:11 C 17 52 39.80 +02 44 12.0 r 084
2005-08-09 20:16:48 C 17 56 03.02 +02 29 17.8 c 434
2005-08-09 20:19:00 C 17 56 03.33 +02 29 16.4 c 434
2005-08-09 20:20:40 C 17 56 03.57 +02 29 15.3 c 434
2005-08-09 20:22:19 C 17 56 03.84 +02 29 14.1 c 434
2005-08-10 12:37:03 C 17 58 28.74 +02 18 28.3 r 379
2005-08-10 12:38:12 C 17 58 28.91 +02 18 27.1 r 379
2005-08-10 12:39:21 C 17 58 29.08 +02 18 26.3 r 379
2005-08-10 12:42:47 C 17 58 29.57 +02 18 24.5 r 379
2005-08-10 19:54:02 C 17 59 35.03 +02 13 26.4 r 240
2005-08-10 19:55:00 C 17 59 35.17 +02 13 25.7 r 240
2005-08-10 19:55:58 C 17 59 35.30 +02 13 25.1 r 240
2005-08-10 19:56:56 C 17 59 35.45 +02 13 24.5 r 240
2005-08-10 19:58:52 C 17 59 35.72 +02 13 23.2 r 240
2005-08-10 20:03:41 C 17 59 36.41 +02 13 19.9 r 240
2005-08-10 20:04:39 C 17 59 36.55 +02 13 19.3 r 240
2005-08-10 20:05:37 C 17 59 36.69 +02 13 18.6 r 240
2005-08-10 20:06:35 C 17 59 36.84 +02 13 18.0 r 240
2005-08-10 20:07:33 C 17 59 36.97 +02 13 17.3 r 240
2005-08-10 20:09:29 C 17 59 37.25 +02 13 16.1 r 240
2005-08-15 23:16:03 C 18 18 48.31 +00 45 37.2 c J93
2005-08-15 23:19:07 C 18 18 48.81 +00 45 34.7 c J93
2005-08-15 23:22:10 C 18 18 49.27 +00 45 32.6 c J93
2005-08-18 19:46:53 C 18 29 58.70 -00 05 52.2 r 084
2005-08-18 19:49:00 C 18 29 59.03 -00 05 53.6 r 084
2005-08-19 11:22:58 C 18 32 33.91 -00 17 34.9 r 379
2005-08-19 11:26:26 C 18 32 34.45 -00 17 38.3 r 379
2005-08-19 11:27:35 C 18 32 34.64 -00 17 38.8 r 379
2005-08-19 11:28:44 C 18 32 34.83 -00 17 39.6 r 379
2005-08-19 20:08:48 C 18 34 00.70 -00 24 26.5 r 084
2005-08-19 20:10:55 C 18 34 01.08 -00 24 28.1 r 084
2005-08-20 11:22:50 C 18 36 33.41 -00 35 56.2 r 379
2005-08-20 11:28:35 C 18 36 34.35 -00 36 00.4 r 379
2005-08-20 20:06:55 C 18 38 00.52 -00 42 47.6 r 084
2005-08-20 20:09:02 C 18 38 00.86 -00 42 48.9 r 084
2005-08-21 22:14:38 C 18 42 23.35 -01 02 44.9 r J97
2005-08-21 22:19:16 C 18 42 24.07 -01 02 48.4 r J97