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
2018-09-09 12:30:23 C 22 46 15.43 +05 40 26.1 U T05
2018-09-11 11:32:45 C 22 48 28.19 +04 53 46.4 U T08
2018-09-11 11:48:03 C 22 48 28.78 +04 53 31.3 U T08
2018-09-11 12:02:40 C 22 48 29.35 +04 53 16.9 U T08
2018-09-11 12:17:58 C 22 48 29.95 +04 53 01.9 U T08
2018-09-12 03:54:39 C 22 49 14.51 +04 37 43.3 q W19
2018-09-12 03:58:59 C 22 49 14.67 +04 37 39.0 q W19
2018-09-12 04:03:09 C 22 49 14.83 +04 37 35.2 q W19
2018-09-12 04:07:21 C 22 49 15.01 +04 37 31.1 q W19
2018-09-12 04:11:40 C 22 49 15.16 +04 37 26.6 q W19
2018-09-12 04:16:50 C 22 49 15.38 +04 37 21.9 q W19
2018-09-12 04:20:14 C 22 49 15.50 +04 37 18.7 q W19
2018-09-12 05:46:46 C 22 49 19.59 +04 35 58.9 G96
2018-09-12 05:54:55 C 22 49 19.91 +04 35 51.1 G96
2018-09-12 06:09:06 C 22 49 20.43 +04 35 37.5 703
2018-09-12 06:11:11 C 22 49 20.52 +04 35 35.6 G96
2018-09-12 06:17:15 C 22 49 20.74 +04 35 29.7 703
2018-09-12 06:25:26 C 22 49 21.06 +04 35 21.9 703
2018-09-12 06:33:36 C 22 49 21.37 +04 35 14.0 703
2018-09-12 20:18:27 C 22 49 59.49 +04 21 55.3 V Z52
2018-09-12 20:32:21 C 22 50 00.07 +04 21 42.1 V Z52
2018-09-12 20:46:14 C 22 50 00.64 +04 21 29.0 V Z52
2018-09-13 04:55:21 C 22 50 22.64 +04 13 53.3 U 703
2018-09-13 05:03:02 C 22 50 22.93 +04 13 46.0 U 703
2018-09-13 05:10:42 C 22 50 23.23 +04 13 38.7 U 703
2018-09-13 05:18:23 C 22 50 23.52 +04 13 31.6 U 703
2018-09-15 10:51:37 C 22 52 44.10 +03 24 09.2 U T08
2018-09-15 10:57:01 C 22 52 44.29 +03 24 04.3 U T08
2018-09-15 11:06:10 C 22 52 44.63 +03 23 56.1 U T08
2018-09-15 11:11:39 C 22 52 44.82 +03 23 51.1 U T08
2018-09-15 11:20:45 C 22 52 45.15 +03 23 42.8 U T08
2018-09-15 11:26:13 C 22 52 45.35 +03 23 38.0 U T08
2018-09-15 11:35:12 C 22 52 45.68 +03 23 29.8 U T08
2018-09-15 11:40:41 C 22 52 45.88 +03 23 24.8 U T08
2018-09-16 06:09:16 C 22 53 34.96 +03 06 49.5 V 703
2018-09-16 06:14:33 C 22 53 35.16 +03 06 44.6 V 703
2018-09-16 06:19:51 C 22 53 35.34 +03 06 40.4 V 703
2018-09-16 06:25:08 C 22 53 35.53 +03 06 35.5 V 703
2018-09-17 10:51:30 C 22 54 47.87 +02 41 53.1 U T05
2018-09-17 10:54:11 C 22 54 47.95 +02 41 51.0 U T05
2018-09-17 11:05:54 C 22 54 48.37 +02 41 40.7 U T05
2018-09-17 11:20:21 C 22 54 48.89 +02 41 28.3 U T05
2018-09-17 11:23:09 C 22 54 48.99 +02 41 26.1 U T05
2018-09-17 11:34:49 C 22 54 49.41 +02 41 15.8 U T05
2018-09-17 18:09:58 C 22 55 07.51 +02 35 36.9 q C97
2018-09-17 18:12:10 C 22 55 07.60 +02 35 35.1 q C97
2018-09-17 18:14:22 C 22 55 07.64 +02 35 33.6 q C97
2018-09-17 18:16:34 C 22 55 07.74 +02 35 31.5 q C97
2018-09-17 20:08:38 C 22 55 12.86 +02 33 44.2 V Z52
2018-09-17 20:22:32 C 22 55 13.40 +02 33 32.4 V Z52