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
2005-08-21 22:21:33 C 18 42 24.48 -01 02 50.6 r J97
2005-08-22 20:30:46 C 18 46 08.77 -01 20 00.2 r 084
2005-08-23 19:52:39 C 18 50 06.39 -01 37 58.6 r 084
2005-08-23 19:54:46 C 18 50 06.75 -01 38 00.4 r 084
2005-08-24 20:01:47 C 18 54 12.69 -01 56 31.5 r 084
2005-08-24 20:03:54 C 18 54 13.03 -01 56 33.2 r 084
2005-08-25 19:53:15 C 18 58 16.74 -02 14 46.6 r 084
2005-08-26 18:53:46 C 19 02 13.39 -02 32 13.7 r A30
2005-08-26 18:54:31 C 19 02 13.51 -02 32 13.8 r A30
2005-08-29 20:00:23 C 19 14 44.05 -03 26 57.6 c 434
2005-08-29 20:03:02 C 19 14 44.46 -03 26 59.4 c 434
2005-08-29 20:06:57 C 19 14 45.14 -03 27 02.5 c 434
2005-08-29 20:11:06 C 19 14 45.81 -03 27 05.2 c 434
2005-08-29 21:19:31 C 19 14 57.09 -03 27 56.4 r A30
2005-08-29 21:22:05 C 19 14 57.51 -03 27 58.4 r A30
2005-08-29 21:22:56 C 19 14 57.65 -03 27 58.9 r A30
2005-08-29 21:23:47 C 19 14 57.79 -03 27 59.6 r A30
2005-08-30 20:32:15 C 19 18 55.86 -03 44 55.2 c A48
2005-08-30 20:35:58 C 19 18 56.47 -03 44 57.8 c A48
2005-08-30 20:39:44 C 19 18 57.09 -03 45 00.4 c A48
2005-08-30 20:43:28 C 19 18 57.71 -03 45 03.1 c A48
2005-08-31 20:14:03 C 19 22 59.13 -04 02 01.0 r A30
2005-08-31 20:15:06 C 19 22 59.30 -04 02 01.8 r A30
2005-08-31 20:16:27 C 19 22 59.53 -04 02 02.7 r A30
2005-08-31 20:17:48 C 19 22 59.74 -04 02 03.7 r A30
2005-08-31 20:19:09 C 19 22 59.97 -04 02 04.7 r A30
2005-08-31 21:12:10 C 19 23 08.55 -04 02 46.3 r 084
2005-08-31 21:14:16 C 19 23 08.88 -04 02 47.7 r 084
2005-09-01 04:40:39 C 19 24 25.42 -04 07 57.6 16.3 c 704
2005-09-01 04:56:46 C 19 24 28.04 -04 08 09.2 16.6 c 704
2005-09-01 05:13:01 C 19 24 30.72 -04 08 20.6 16.8 c 704
2005-09-01 05:29:12 C 19 24 33.39 -04 08 30.2 17.7 c 704
2005-09-01 19:45:54 C 19 26 59.98 -04 18 47.2 r 084
2005-09-02 11:22:19 C 19 29 39.95 -04 29 34.5 r 379
2005-09-02 11:25:47 C 19 29 40.52 -04 29 36.8 r 379
2005-09-02 11:30:22 C 19 29 41.24 -04 29 40.3 r 379
2005-09-02 11:31:31 C 19 29 41.45 -04 29 41.1 r 379
2005-09-02 11:36:30 C 19 29 42.25 -04 29 44.4 r 379
2005-09-02 11:39:46 C 19 29 42.77 -04 29 46.5 r 379
2005-09-02 11:46:15 C 19 29 43.84 -04 29 51.2 r 379
2005-09-02 12:20:06 C 19 29 49.36 -04 30 14.6 m 355
2005-09-02 12:22:45 C 19 29 49.73 -04 30 16.7 m 355
2005-09-02 12:29:13 C 19 29 50.79 -04 30 21.1 m 355
2005-09-02 12:31:46 C 19 29 51.23 -04 30 23.3 m 355
2005-09-02 19:52:56 C 19 31 06.84 -04 35 32.2 c 565
2005-09-02 19:57:04 C 19 31 07.49 -04 35 35.0 c 565
2005-09-02 20:00:10 C 19 31 07.99 -04 35 37.1 c 565
2005-09-02 20:02:13 C 19 31 08.35 -04 35 38.5 c 565
2005-09-02 20:37:07 C 19 31 13.83 -04 36 06.3 r 084
2005-09-02 20:39:14 C 19 31 14.13 -04 36 07.8 r 084