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
2005-05-20 07:32:32 C 16 28 07.16 -06 39 16.6 c H45
2005-05-20 07:35:11 C 16 28 07.14 -06 39 14.6 c H45
2005-05-20 07:36:48 C 16 28 07.09 -06 39 13.5 c H45
2005-05-20 07:40:42 C 16 28 07.08 -06 39 09.9 c H45
2005-05-20 20:50:55 C 16 28 05.09 -06 28 36.0 r 084
2005-05-20 20:53:02 C 16 28 05.07 -06 28 34.5 r 084
2005-05-21 03:39:54 C 16 28 03.59 -06 22 34.6 834
2005-05-21 03:59:21 C 16 28 03.42 -06 22 19.2 834
2005-05-21 22:39:51 C 16 27 58.78 -06 07 35.2 r 084
2005-05-22 23:13:43 C 16 27 51.97 -05 47 24.0 r 084
2005-05-25 04:32:11 C 16 27 34.33 -05 02 32.1 834
2005-05-25 05:11:07 C 16 27 33.89 -05 01 59.5 834
2005-05-25 21:12:55 C 16 27 28.30 -04 49 04.3 r 084
2005-05-26 21:44:58 C 16 27 18.56 -04 28 20.8 c 118
2005-05-26 21:46:37 C 16 27 18.54 -04 28 19.4 c 118
2005-05-26 21:54:59 C 16 27 18.45 -04 28 12.3 c 118
2005-05-26 21:56:40 C 16 27 18.43 -04 28 10.9 c 118
2005-05-26 22:00:02 C 16 27 18.39 -04 28 08.1 c 118
2005-05-26 22:27:29 C 16 27 18.15 -04 27 45.4 r A34
2005-05-26 22:28:42 C 16 27 18.15 -04 27 44.2 r A34
2005-05-26 22:29:52 C 16 27 18.13 -04 27 43.5 r A34
2005-05-26 22:31:37 C 16 27 18.11 -04 27 42.0 r A34
2005-05-26 22:32:45 C 16 27 18.12 -04 27 41.1 r A34
2005-05-26 22:33:52 C 16 27 18.09 -04 27 40.1 r A34
2005-05-26 22:35:12 C 16 27 18.08 -04 27 39.0 r A34
2005-05-27 22:15:22 C 16 27 07.89 -04 07 36.7 c 118
2005-05-27 22:18:47 C 16 27 07.66 -04 07 35.6 o A76
2005-05-27 22:20:23 C 16 27 07.83 -04 07 32.5 c 118
2005-05-27 22:23:44 C 16 27 07.79 -04 07 29.6 c 118
2005-05-27 22:45:03 C 16 27 07.48 -04 07 10.8 o A76
2005-05-27 23:11:21 C 16 27 07.19 -04 06 48.6 o A76
2005-05-28 21:03:56 C 16 26 57.91 -03 48 16.0 r 557
2005-05-28 21:41:36 C 16 26 57.45 -03 47 43.5 c 118
2005-05-28 21:46:39 C 16 26 57.39 -03 47 39.2 c 118
2005-05-28 21:53:21 C 16 26 57.31 -03 47 33.6 c 118
2005-05-28 22:01:37 C 16 26 57.22 -03 47 27.1 r 557
2005-05-28 22:06:46 C 16 26 57.14 -03 47 22.2 c 118
2005-05-28 23:21:25 C 16 26 56.25 -03 46 19.4 r 557
2005-05-29 00:21:54 C 16 26 55.52 -03 45 27.9 r 557
2005-05-29 01:06:14 C 16 26 55.01 -03 44 50.2 r 557
2005-05-29 20:45:34 C 16 26 46.87 -03 28 07.9 r 557
2005-05-29 21:45:26 C 16 26 46.14 -03 27 17.1 r 557
2005-05-29 21:47:05 C 16 26 46.11 -03 27 14.9 c 118
2005-05-29 21:52:05 C 16 26 46.06 -03 27 10.7 c 118
2005-05-29 21:57:05 C 16 26 45.99 -03 27 06.4 c 118
2005-05-29 22:02:05 C 16 26 45.93 -03 27 02.2 c 118
2005-05-29 22:07:07 C 16 26 45.87 -03 26 57.9 c 118
2005-05-29 22:48:08 C 16 26 45.37 -03 26 23.8 r 557
2005-05-29 23:28:25 C 16 26 44.87 -03 25 49.6 r 557
2005-05-30 00:51:13 C 16 26 43.85 -03 24 39.1 r 557