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
2018-09-17 20:36:26 C 22 55 13.93 +02 33 20.6 V Z52
2018-09-18 03:27:28 C 22 55 31.11 +02 27 36.9 q W19
2018-09-18 03:31:44 C 22 55 31.26 +02 27 33.3 q W19
2018-09-18 03:35:54 C 22 55 31.41 +02 27 29.7 q W19
2018-09-18 03:39:54 C 22 55 31.56 +02 27 26.3 q W19
2018-09-18 03:44:09 C 22 55 31.72 +02 27 22.8 q W19
2018-09-18 03:48:10 C 22 55 31.86 +02 27 19.4 q W19
2018-09-18 04:57:03 C 22 55 35.01 +02 26 24.5 V 703
2018-09-18 05:04:36 C 22 55 35.28 +02 26 18.3 V 703
2018-09-18 05:12:08 C 22 55 35.55 +02 26 11.8 V 703
2018-09-18 05:19:41 C 22 55 35.83 +02 26 05.7 V 703
2018-09-18 20:42:11 C 22 56 14.70 +02 13 08.2 V G33
2018-09-18 20:46:28 C 22 56 14.87 +02 13 05.3 V G33
2018-09-18 20:50:00 C 22 56 14.96 +02 13 02.2 V G33
2018-09-18 20:52:08 C 22 56 15.08 +02 13 00.4 V G33
2018-09-19 10:49:03 C 22 56 48.99 +02 01 46.0 U T08
2018-09-19 11:03:34 C 22 56 49.50 +02 01 34.2 U T08
2018-09-19 11:18:06 C 22 56 50.00 +02 01 22.4 U T08
2018-09-19 11:32:30 C 22 56 50.51 +02 01 10.6 U T08
2018-09-21 06:07:43 C 22 58 37.51 +01 27 18.6 U I41
2018-09-21 07:05:02 C 22 58 39.51 +01 26 34.4 U I41
2018-09-21 10:21:23 C 22 58 47.28 +01 24 08.7 U T05
2018-09-21 10:26:49 C 22 58 47.47 +01 24 04.5 U T05
2018-09-21 10:35:59 C 22 58 47.79 +01 23 57.4 U T05
2018-09-21 10:41:27 C 22 58 47.97 +01 23 53.6 U T05
2018-09-21 10:50:23 C 22 58 48.28 +01 23 46.3 U T05
2018-09-21 10:55:56 C 22 58 48.47 +01 23 42.1 U T05
2018-09-21 11:04:50 C 22 58 48.78 +01 23 35.2 U T05
2018-09-22 06:36:23 C 22 59 37.58 +01 08 42.2 U I41
2018-09-22 06:37:42 C 22 59 37.62 +01 08 41.2 U I41
2018-09-22 07:06:04 C 22 59 38.60 +01 08 20.0 U I41
2018-09-22 07:08:05 C 22 59 38.68 +01 08 18.5 U I41
2018-09-26 11:45:55 C 23 03 42.49 -00 01 48.1 U T08
2018-09-26 12:01:44 C 23 03 43.06 -00 01 58.4 U T08
2018-09-26 12:18:01 C 23 03 43.63 -00 02 08.9 U T08
2018-09-26 12:35:00 C 23 03 44.26 -00 02 20.0 U T08
2018-09-27 16:53:37 C 23 04 54.35 -00 20 15.5 q C97
2018-09-27 16:55:48 C 23 04 54.46 -00 20 16.9 q C97
2018-09-27 16:57:59 C 23 04 54.52 -00 20 18.3 q C97
2018-09-27 17:00:10 C 23 04 54.58 -00 20 19.5 q C97
2018-09-27 17:15:59 C 23 04 55.15 -00 20 29.3 q C97
2018-09-27 17:18:10 C 23 04 55.19 -00 20 30.5 q C97
2018-09-27 17:20:22 C 23 04 55.27 -00 20 32.0 q C97
2018-09-27 17:22:32 C 23 04 55.38 -00 20 33.1 q C97
2018-09-27 19:05:13 C 23 04 59.72 -00 21 44.1 t K17
2018-09-27 21:46:30 C 23 05 05.54 -00 23 23.8 t K17
2018-09-28 00:24:07 C 23 05 11.20 -00 25 00.2 t K17
2018-09-28 19:57:04 C 23 05 59.40 -00 36 46.6 V Z52
2018-09-28 20:12:16 C 23 05 59.95 -00 36 55.6 V Z52
2018-09-29 07:01:59 C 23 06 25.10 -00 43 10.5 V 703