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
2018-07-07 06:48:37 C 20 16 07.71 +15 21 08.7 463
2018-07-07 07:03:36 C 20 16 09.42 +15 21 23.0 463
2018-07-07 07:18:37 C 20 16 11.13 +15 21 37.2 463
2018-07-07 07:29:31 C 20 16 12.45 +15 21 51.3 719
2018-07-07 08:52:15 C 20 16 21.76 +15 23 07.6 719
2018-07-07 22:57:30 C 20 18 07.38 +15 36 04.1 U Z52
2018-07-08 00:23:41 C 20 18 17.44 +15 37 25.3 V Z80
2018-07-08 00:25:25 C 20 18 17.65 +15 37 26.9 V Z80
2018-07-08 00:27:10 C 20 18 17.85 +15 37 28.6 V Z80
2018-07-08 00:28:56 C 20 18 18.06 +15 37 30.3 V Z80
2018-07-08 00:30:39 C 20 18 18.26 +15 37 31.9 V Z80
2018-07-08 00:32:25 C 20 18 18.45 +15 37 33.4 V Z80
2018-07-08 00:34:10 C 20 18 18.66 +15 37 35.0 V Z80
2018-07-08 00:35:54 C 20 18 18.86 +15 37 36.6 V Z80
2018-07-08 00:37:39 C 20 18 19.05 +15 37 38.3 V Z80
2018-07-08 00:39:24 C 20 18 19.26 +15 37 39.8 V Z80
2018-07-08 00:41:09 C 20 18 19.47 +15 37 41.4 V Z80
2018-07-08 00:42:54 C 20 18 19.68 +15 37 43.1 V Z80
2018-07-08 00:56:24 C 20 18 21.24 +15 37 54.7 U Z52
2018-07-08 02:02:54 C 20 18 28.97 +15 38 55.7 U Z52
2018-07-08 06:47:17 C 20 19 05.34 +15 43 23.4 463
2018-07-08 07:01:40 C 20 19 06.97 +15 43 36.1 463
2018-07-08 07:16:34 C 20 19 08.68 +15 43 49.8 463
2018-07-08 13:29:28 C 20 19 53.10 +15 49 39.3 U T05
2018-07-08 13:36:20 C 20 19 53.88 +15 49 45.3 U T05
2018-07-08 14:05:40 C 20 19 57.23 +15 50 10.9 U T05
2018-07-09 06:40:31 C 20 22 03.31 +16 04 39.5 463
2018-07-09 06:50:55 C 20 22 04.51 +16 04 48.7 463
2018-07-09 07:05:27 C 20 22 06.19 +16 05 01.2 463
2018-07-10 03:01:41 C 20 24 36.69 +16 22 04.0 q W34
2018-07-10 03:11:06 C 20 24 37.81 +16 22 12.2 q W34
2018-07-10 03:23:17 C 20 24 39.26 +16 22 22.8 q W34
2018-07-10 03:35:44 C 20 24 40.73 +16 22 33.6 q W34
2018-07-10 22:04:17 C 20 26 59.12 +16 37 34.2 U Z52
2018-07-10 23:01:40 C 20 27 05.97 +16 38 21.6 U Z52
2018-07-11 00:34:22 C 20 27 16.92 +16 39 37.2 U Z52
2018-07-11 05:31:43 C 20 27 55.64 +16 43 44.7 719
2018-07-11 06:15:12 C 20 28 00.66 +16 44 20.0 719
2018-07-12 13:27:30 C 20 31 53.92 +17 08 21.3 U T05
2018-07-12 13:41:31 C 20 31 55.54 +17 08 31.3 U T05
2018-07-12 14:08:38 C 20 31 58.69 +17 08 50.4 U T05
2018-07-12 22:33:48 C 20 33 05.21 +17 14 43.0 q 160
2018-07-12 22:37:00 C 20 33 05.59 +17 14 45.4 q 160
2018-07-12 22:40:14 C 20 33 05.97 +17 14 47.8 q 160
2018-07-13 02:02:36 C 20 33 30.10 +17 17 16.9 d Z35
2018-07-13 02:18:48 C 20 33 32.04 +17 17 28.7 d Z35
2018-07-13 02:35:06 C 20 33 33.92 +17 17 40.5 d Z35
2018-07-13 06:07:17 C 20 34 02.70 +17 20 08.8 463
2018-07-13 06:28:05 C 20 34 05.15 +17 20 23.9 463
2018-07-13 16:10:25 C 20 35 18.59 +17 27 15.0 q D29