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
1979-06-24 08:41:06 13 25 36.79 +00 42 24.9 413
1979-06-24 09:56:06 13 25 39.40 +00 42 13.2 413
1989-11-06 06:53:00 03 34 29.08 +12 24 26.9 675
1989-11-06 08:23:00 03 34 23.81 +12 23 55.6 675
1992-03-28 17:42:26 A 15 05 25.82 -14 38 10.2 413
1992-05-02 08:50:45 A 14 54 32.72 -08 39 10.5 17.0 675
1992-05-02 09:24:59 A 14 54 31.37 -08 38 48.2 675
1992-05-02 15:29:59 14 54 18.10 -08 34 56.8 17.5 372
1992-05-02 15:45:00 14 54 17.49 -08 34 48.6 372
1992-05-03 14:21:29 14 53 27.25 -08 20 35.6 17.0 372
1992-05-03 14:36:29 14 53 26.67 -08 20 25.4 372
1992-05-04 15:41:30 14 52 29.03 -08 04 28.7 17.0 372
1992-05-06 14:39:00 14 50 38.94 -07 34 17.1 17.0 m 402
1992-05-06 14:57:59 14 50 38.00 -07 34 01.7 m 402
1992-05-10 17:14:00 14 46 36.00 -06 29 38.7 17.0 F 372
1992-05-10 17:27:15 14 46 35.66 -06 29 28.5 F 372
1992-05-22 14:36:29 14 34 51.39 -03 26 08.8 17.0 F 372
1992-05-24 14:11:05 C 14 33 03.80 -02 57 27.6 413
1992-05-24 14:13:55 C 14 33 03.69 -02 57 25.9 413
1992-05-26 14:15:00 14 31 21.32 -02 30 12.6 17.0 F 372
1992-05-26 14:27:29 14 31 20.80 -02 30 02.9 F 372
1992-05-27 05:45:44 A 14 30 49.98 -02 21 38.3 16.5 675
1992-05-27 06:19:29 A 14 30 48.65 -02 21 19.7 675
1992-05-29 02:51:56 C 14 29 21.94 -01 57 17.1 z 801
1992-05-29 03:09:25 C 14 29 21.33 -01 57 08.5 z 801
1992-05-30 05:34:45 A 14 28 33.41 -01 43 28.0 675
1992-05-30 06:11:00 A 14 28 32.22 -01 43 07.8 675
1992-06-03 02:58:31 C 14 26 05.21 -00 58 54.2 z 801
1992-06-03 03:19:47 C 14 26 04.70 -00 58 43.8 z 801
1992-06-03 05:27:04 A 14 26 02.07 -00 57 45.2 17.3 675
1992-06-03 06:35:00 A 14 26 00.15 -00 57 17.1 675
1992-06-05 06:00:30 A 14 25 00.69 -00 37 10.6 675
1992-06-05 06:42:59 A 14 24 59.76 -00 36 53.4 675
1992-06-05 15:29:59 14 24 49.63 -00 33 19.6 18.0 F 372
1992-06-25 04:47:00 A 14 26 20.20 +01 05 08.5 17.3 675
1992-06-25 05:31:30 A 14 26 21.12 +01 05 08.3 675
1992-06-26 04:27:29 A 14 26 59.00 +01 05 22.4 675
1992-06-28 01:41:28 C 14 28 22.25 +01 04 35.9 z 801
1992-06-28 02:13:11 C 14 28 23.17 +01 04 34.7 z 801
1992-06-30 01:24:34 C 14 30 03.86 +01 02 05.7 z 801
1992-06-30 01:38:32 C 14 30 04.34 +01 02 04.3 z 801
1992-07-04 13:10:05 C 14 34 44.19 +00 50 30.4 413
1992-07-04 13:14:38 C 14 34 44.41 +00 50 29.7 413
1992-07-26 01:50:36 C 15 13 17.59 -01 51 49.8 z 801
1992-07-26 02:01:22 C 15 13 18.63 -01 51 54.9 z 801
1992-07-26 06:42:26 C 15 13 46.62 -01 54 05.3 z 658
1992-07-26 06:46:54 C 15 13 47.01 -01 54 07.4 z 658
1992-07-26 06:50:55 C 15 13 47.45 -01 54 09.7 z 658
1992-07-28 06:16:31 C 15 18 39.35 -02 16 32.2 z 658
1992-07-28 06:21:00 C 15 18 39.85 -02 16 34.3 z 658