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
2008-03-29 07:41:09 C 11 57 17.71 -01 40 35.4 r G96
2008-03-29 07:49:28 C 11 57 17.31 -01 40 31.7 r G96
2008-04-06 07:12:47 C 11 48 01.79 -00 14 51.1 18.8 c 704
2008-04-06 07:29:22 C 11 48 01.00 -00 14 43.6 19.1 c 704
2008-04-06 07:45:57 C 11 48 00.16 -00 14 36.8 19.0 c 704
2008-04-06 08:02:36 C 11 47 59.37 -00 14 29.8 19.1 c 704
2008-04-09 06:30:18 C 11 44 45.31 +00 16 27.5 r G96
2008-04-09 06:38:19 C 11 44 44.95 +00 16 31.0 r G96
2008-04-09 06:46:31 C 11 44 44.55 +00 16 34.7 r G96
2008-04-09 06:54:42 C 11 44 44.19 +00 16 38.3 r G96
2008-04-24 04:34:17 C 11 31 16.35 +02 35 53.4 r G96
2008-04-24 04:42:15 C 11 31 16.10 +02 35 56.1 r G96
2008-04-24 04:43:09 C 11 31 16.07 +02 35 57.7 19.4 c 704
2008-04-24 04:50:19 C 11 31 15.85 +02 35 58.8 r G96
2008-04-24 05:28:59 C 11 31 14.58 +02 36 12.9 19.7 c 704
2008-04-24 05:44:21 C 11 31 14.11 +02 36 18.4 19.5 c 704
2008-04-24 05:57:49 C 11 31 13.65 +02 36 21.3 r 703
2008-04-24 06:08:23 C 11 31 13.33 +02 36 24.4 r 703
2008-04-24 06:18:55 C 11 31 13.11 +02 36 28.6 r 703
2008-04-24 06:29:15 C 11 31 12.79 +02 36 32.4 r 703
2008-04-28 06:00:50 C 11 28 43.83 +03 06 23.3 19.0 c 704
2008-04-28 06:16:12 C 11 28 43.46 +03 06 26.4 19.3 c 704
2008-04-28 06:31:26 C 11 28 43.04 +03 06 32.1 19.1 c 704
2008-04-28 06:46:39 C 11 28 42.73 +03 06 36.8 19.5 c 704
2008-04-28 07:01:57 C 11 28 42.32 +03 06 40.6 18.7 c 704
2008-05-04 04:32:26 C 11 26 02.68 +03 43 50.9 r 703
2008-05-04 04:42:28 C 11 26 02.61 +03 43 53.3 r 703
2008-05-04 04:52:32 C 11 26 02.36 +03 43 56.2 r 703
2008-05-04 05:02:32 C 11 26 02.22 +03 43 58.0 r 703
2008-05-16 07:12:55 C 11 24 33.12 +04 32 14.6 568
2008-05-16 07:34:06 C 11 24 33.16 +04 32 16.8 568
2008-06-01 03:50:49 C 11 30 24.73 +04 39 55.8 r G96
2008-06-01 03:58:49 C 11 30 24.94 +04 39 55.6 r G96
2008-06-01 04:06:46 C 11 30 25.12 +04 39 55.1 r G96
2008-06-01 04:14:45 C 11 30 25.34 +04 39 54.6 r G96
2011-01-28 08:33:16 C 11 04 07.96 +00 16 19.4 o 691
2011-01-28 08:58:51 C 11 04 07.40 +00 16 22.2 o 691
2011-01-28 09:24:24 C 11 04 06.80 +00 16 25.5 o 691
2012-11-13 08:16:13 C 06 18 15.14 +15 35 14.5 u 807
2012-11-13 08:21:59 C 06 18 14.93 +15 35 13.8 u 807
2012-11-13 08:39:18 C 06 18 14.37 +15 35 11.7 u 807
2012-11-24 08:03:57 C 06 08 23.76 +15 09 56.8 u 807
2012-11-24 08:27:04 C 06 08 22.74 +15 09 54.7 u 807
2012-12-13 07:26:43 C 05 45 54.93 +14 41 12.6 r G96
2012-12-13 07:36:59 C 05 45 54.39 +14 41 12.7 r G96
2012-12-13 07:47:19 C 05 45 53.82 +14 41 12.3 r G96
2012-12-13 07:57:44 C 05 45 53.28 +14 41 11.6 r G96
2012-12-13 08:08:02 C 05 45 52.74 +14 41 11.4 r G96
2013-01-07 06:03:09 C 05 17 46.641 +14 38 29.32 L F51
2013-01-07 06:30:04 C 05 17 45.608 +14 38 30.30 L F51