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
2018-08-09 03:41:31 C 21 51 53.01 +17 46 34.7 q W19
2018-08-09 03:44:36 C 21 51 53.31 +17 46 32.9 q W19
2018-08-09 03:47:42 C 21 51 53.59 +17 46 31.1 q W19
2018-08-09 03:50:47 C 21 51 53.90 +17 46 29.2 q W19
2018-08-09 03:53:53 C 21 51 54.19 +17 46 27.4 q W19
2018-08-09 12:50:21 C 21 52 46.40 +17 41 10.3 U T05
2018-08-09 13:03:44 C 21 52 47.62 +17 41 01.5 U T05
2018-08-09 13:19:49 C 21 52 49.09 +17 40 50.9 U T05
2018-08-09 13:32:31 C 21 52 50.24 +17 40 42.6 U T05
2018-08-10 00:09:48 C 21 53 56.33 +17 33 41.4 q 160
2018-08-10 00:12:13 C 21 53 56.56 +17 33 39.8 q 160
2018-08-10 00:14:29 C 21 53 56.76 +17 33 38.4 q 160
2018-08-10 19:24:32 C 21 55 53.58 +17 20 50.2 t 073
2018-08-10 19:41:47 C 21 55 55.70 +17 20 37.5 q 006
2018-08-10 19:44:06 C 21 55 55.95 +17 20 36.1 q 006
2018-08-10 19:48:58 C 21 55 56.40 +17 20 32.9 q 006
2018-08-10 19:52:38 C 21 55 56.76 +17 20 30.5 q 006
2018-08-10 19:55:34 C 21 55 57.06 +17 20 28.5 q 006
2018-08-10 19:59:14 C 21 55 57.39 +17 20 26.3 q 006
2018-08-10 20:02:54 C 21 55 57.75 +17 20 24.0 q 006
2018-08-10 20:06:34 C 21 55 58.08 +17 20 21.7 q 006
2018-08-10 20:26:40 C 21 55 59.34 +17 20 09.7 t 073
2018-08-10 21:07:16 C 21 56 03.52 +17 19 35.3 U Z52
2018-08-10 21:18:51 C 21 56 04.61 +17 19 27.7 U Z52
2018-08-10 21:25:39 C 21 56 04.70 +17 19 30.4 t 073
2018-08-10 21:49:16 C 21 56 06.84 +17 19 14.8 t 073
2018-08-11 12:08:57 C 21 57 29.94 +17 09 33.9 U T08
2018-08-11 12:25:07 C 21 57 31.33 +17 09 22.1 U T08
2018-08-11 12:30:28 C 21 57 31.80 +17 09 18.2 U T08
2018-08-11 12:38:24 C 21 57 32.48 +17 09 12.4 U T08
2018-08-11 12:54:07 C 21 57 33.84 +17 09 01.0 U T08
2018-08-11 12:55:28 C 21 57 33.96 +17 08 59.9 U T08
2018-08-11 13:07:25 C 21 57 35.00 +17 08 51.2 U T08
2018-08-11 13:08:44 C 21 57 35.11 +17 08 50.2 U T08
2018-08-11 20:00:15 C 21 58 18.46 +17 03 34.3 t K17
2018-08-11 21:10:16 C 21 58 24.89 +17 02 45.6 t K17
2018-08-11 22:12:57 C 21 58 30.52 +17 02 02.1 t K17
2018-08-11 23:02:22 C 21 58 34.77 +17 01 28.8 q 160
2018-08-11 23:05:33 C 21 58 35.05 +17 01 26.6 q 160
2018-08-11 23:08:46 C 21 58 35.33 +17 01 24.3 q 160
2018-08-12 02:44:33 C 21 58 57.52 +16 58 45.1 q W19
2018-08-12 02:48:17 C 21 58 57.87 +16 58 42.6 q W19
2018-08-12 02:51:57 C 21 58 58.20 +16 58 40.1 q W19
2018-08-12 02:55:43 C 21 58 58.55 +16 58 37.4 q W19
2018-08-12 02:59:28 C 21 58 58.87 +16 58 34.7 q W19
2018-08-12 19:50:05 C 22 00 35.41 +16 46 01.5 t 073
2018-08-12 20:43:16 C 22 00 40.08 +16 45 22.4 t 073
2018-08-12 21:42:19 C 22 00 45.19 +16 44 38.2 t 073
2018-08-12 22:14:10 C 22 00 47.94 +16 44 14.8 t 073
2018-08-13 18:30:34 C 22 02 42.62 +16 28 22.8 q 168