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
2005-09-03 18:56:46 C 19 35 02.24 -04 51 19.8 r 240
2005-09-03 18:57:56 C 19 35 02.41 -04 51 20.7 r 240
2005-09-03 18:59:07 C 19 35 02.60 -04 51 21.6 r 240
2005-09-03 19:01:27 C 19 35 02.98 -04 51 23.1 r 240
2005-09-03 19:08:29 C 19 35 04.15 -04 51 27.8 r 240
2005-09-03 19:11:35 C 19 35 04.67 -04 51 29.9 r 240
2005-09-03 19:12:22 C 19 35 04.81 -04 51 30.4 r 240
2005-09-03 19:13:33 C 19 35 04.98 -04 51 31.2 r 240
2005-09-03 19:14:43 C 19 35 05.17 -04 51 32.1 r 240
2005-09-03 19:46:05 C 19 35 09.89 -04 51 55.9 r 084
2005-09-04 20:11:49 C 19 39 17.89 -05 08 16.5 r 084
2005-09-04 20:13:56 C 19 39 18.22 -05 08 17.9 r 084
2005-09-05 19:57:46 C 19 43 18.32 -05 23 48.1 r 084
2005-09-05 21:23:22 C 19 43 32.87 -05 24 40.7 c J93
2005-09-05 21:26:09 C 19 43 33.33 -05 24 42.6 c J93
2005-09-05 21:28:58 C 19 43 33.81 -05 24 44.3 c J93
2005-09-06 18:53:59 C 19 47 09.98 -05 38 21.1 o 151
2005-09-06 18:56:12 C 19 47 10.34 -05 38 22.4 o 151
2005-09-06 18:57:01 C 19 47 10.48 -05 38 22.9 o 151
2005-09-06 18:57:36 C 19 47 10.57 -05 38 23.5 o 151
2005-09-06 19:03:18 C 19 47 11.46 -05 38 26.6 r A30
2005-09-06 19:05:01 C 19 47 11.74 -05 38 27.7 r A30
2005-09-06 19:05:46 C 19 47 11.86 -05 38 28.2 r A30
2005-09-06 19:06:30 C 19 47 11.98 -05 38 28.7 r A30
2005-09-06 19:07:14 C 19 47 12.09 -05 38 29.1 r A30
2005-09-06 20:11:31 C 19 47 22.20 -05 39 12.9 r 084
2005-09-06 20:13:38 C 19 47 22.54 -05 39 14.3 r 084
2005-09-06 23:56:23 C 19 47 59.34 -05 41 31.5 c J93
2005-09-06 23:59:11 C 19 47 59.75 -05 41 33.7 c J93
2005-09-07 00:04:46 C 19 48 00.74 -05 41 37.0 c J93
2005-09-08 11:20:38 C 19 53 54.07 -06 03 07.0 r 379
2005-09-08 11:23:30 C 19 53 54.53 -06 03 08.8 r 379
2005-09-08 11:29:16 C 19 53 55.45 -06 03 12.2 r 379
2005-09-08 11:32:09 C 19 53 55.90 -06 03 13.8 r 379
2005-09-08 20:21:27 C 19 55 23.45 -06 08 33.7 r A34
2005-09-08 20:22:10 C 19 55 23.60 -06 08 34.2 r A34
2005-09-08 20:23:41 C 19 55 23.82 -06 08 35.1 r A34
2005-09-08 20:24:53 C 19 55 24.03 -06 08 35.6 r A34
2005-09-08 20:26:14 C 19 55 24.25 -06 08 36.4 r A34
2005-09-08 20:26:56 C 19 55 24.34 -06 08 37.3 r A34
2005-09-08 20:28:15 C 19 55 24.55 -06 08 37.6 r A34
2005-09-08 20:28:58 C 19 55 24.68 -06 08 38.1 r A34
2005-09-09 19:49:40 C 19 59 15.61 -06 22 16.5 r 084
2005-09-09 19:51:47 C 19 59 15.96 -06 22 17.7 r 084
2005-09-10 19:59:53 C 20 03 13.25 -06 35 53.7 r 084
2005-09-10 20:01:59 C 20 03 13.60 -06 35 54.5 r 084
2005-09-11 19:47:04 C 20 07 05.51 -06 48 49.5 r 084
2005-09-14 21:10:43 C 20 18 50.91 -07 25 42.5 c J93
2005-09-14 21:13:32 C 20 18 51.29 -07 25 44.0 c J93
2005-09-14 21:19:07 C 20 18 52.21 -07 25 46.9 c J93