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
1992-07-28 06:25:00 C 15 18 40.25 -02 16 36.3 z 658
1992-07-31 01:10:41 C 15 25 53.65 -02 49 54.3 z 801
1992-07-31 01:18:52 C 15 25 54.55 -02 49 58.2 z 801
1992-08-05 10:35:03 C 15 41 07.03 -03 59 13.7 413
1992-08-05 10:37:35 C 15 41 07.34 -03 59 14.8 413
1992-08-21 12:17:22 C 16 35 41.94 -07 52 47.1 413
1992-08-21 12:21:16 C 16 35 42.55 -07 52 49.5 413
1992-08-22 11:57:36 C 16 39 28.38 -08 07 37.0 413
1992-08-22 12:00:01 C 16 39 28.76 -08 07 38.6 413
1992-08-25 00:41:55 C 16 49 22.27 -08 45 54.2 z 801
1992-08-25 00:45:16 C 16 49 22.77 -08 45 56.0 z 801
1992-09-01 00:18:58 C 17 18 06.01 -10 27 08.2 z 801
1992-09-01 00:25:45 C 17 18 07.18 -10 27 12.0 z 801
1992-09-06 09:57:29 C 17 41 32.14 -11 38 38.0 413
1992-09-06 10:00:58 C 17 41 32.85 -11 38 39.7 413
1992-10-01 23:52:07 C 19 37 13.13 -14 49 45.2 z 801
1992-10-02 00:06:22 C 19 37 15.78 -14 49 48.1 z 801
1992-10-12 10:50:43 C 20 21 45.45 -14 41 57.8 413
1992-10-12 10:53:24 C 20 21 45.90 -14 41 57.6 413
1992-10-19 11:46:00 20 49 39.49 -14 12 49.2 18.5 372
1992-10-27 11:10:00 21 19 04.92 -13 20 37.7 19.0 372
1992-10-27 23:38:40 C 21 20 55.46 -13 16 40.7 z 801
1992-12-10 11:38:35 C 23 26 53.46 -05 26 09.8 413
1992-12-10 11:42:14 C 23 26 53.89 -05 26 08.1 413
1995-02-01 17:45:59 C 12 17 58.70 -05 46 45.1 413
1995-02-21 15:13:58 C 12 11 17.58 -04 55 32.5 413
1995-02-21 15:19:58 C 12 11 17.30 -04 55 31.0 413
1995-02-28 10:49:29 C 12 06 23.91 -04 17 23.7 z 658
1995-02-28 11:19:00 C 12 06 22.68 -04 17 15.2 z 658
1995-03-01 01:22:40 C 12 05 54.12 -04 13 28.3 z 104
1995-03-01 01:30:00 C 12 05 53.81 -04 13 26.3 z 104
1995-03-01 01:37:30 C 12 05 53.50 -04 13 23.9 z 104
1995-03-01 01:50:19 C 12 05 53.09 -04 13 20.2 z 104
1995-03-07 16:12:31 C 11 59 54.48 -03 25 20.7 413
1995-03-07 16:16:52 C 11 59 54.28 -03 25 19.0 413
1995-03-21 14:22:08 C 11 44 45.95 -01 18 59.1 413
1995-03-21 14:28:10 C 11 44 45.65 -01 18 56.6 413
1995-06-05 09:31:59 C 11 18 15.41 +05 19 19.8 413
1995-06-05 09:38:32 C 11 18 15.56 +05 19 19.3 413
1996-11-17 10:34:33 C 07 19 41.28 +14 30 35.9 i 711
1996-11-17 10:53:54 C 07 19 40.88 +14 30 33.8 i 711
1996-11-18 09:19:35 C 07 19 16.59 +14 28 59.1 i 711
1996-11-18 09:38:26 C 07 19 16.24 +14 28 57.4 i 711
1998-02-21 00:02:49 C 10 31 27.47 +03 19 45.7 557
1998-02-21 02:13:10 C 10 31 21.78 +03 20 23.2 557
1999-11-03 11:02:21 C 06 13 10.05 +16 08 58.4 z 711
1999-11-03 11:27:06 C 06 13 09.46 +16 08 56.3 z 711
1999-11-03 11:46:08 C 06 13 09.06 +16 08 54.2 z 711
2000-01-08 06:01:14 C 05 04 27.73 +14 29 10.1 z 711
2000-01-09 05:46:25 C 05 03 40.47 +14 29 53.7 z 711