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
2017-02-19 06:22:32 C 08 22 14.168 +12 00 06.40 L F51
2017-02-19 06:25:18 C 08 22 14.086 +12 00 06.87 L F51
2018-01-27 11:47:17 C 14 46 54.01 -15 55 07.5 U G96
2018-01-27 12:02:58 C 14 46 55.16 -15 55 11.7 U G96
2018-01-27 12:09:50 C 14 46 55.70 -15 55 13.5 U G96
2018-01-27 12:16:40 C 14 46 56.18 -15 55 14.7 U G96
2018-02-12 21:07:00 C 15 17 19.14 -17 18 50.2 q D29
2018-02-12 21:32:28 C 15 17 20.99 -17 18 55.2 q D29
2018-03-16 13:12:44 C 16 17 27.33 -18 16 30.1 U T05
2018-03-16 13:22:41 C 16 17 28.05 -18 16 29.3 U T05
2018-03-16 13:32:38 C 16 17 28.88 -18 16 29.5 U T05
2018-03-16 13:42:33 C 16 17 29.65 -18 16 29.4 U T05
2018-03-20 12:17:28 C 16 25 01.98 -18 11 09.7 o 691
2018-03-20 12:20:43 C 16 25 02.23 -18 11 09.7 o 691
2018-03-20 12:23:58 C 16 25 02.48 -18 11 09.5 o 691
2018-04-09 20:23:42 C 17 03 56.37 -16 45 14.4 q D29
2018-04-09 20:34:59 C 17 03 57.26 -16 45 10.7 q D29
2018-04-11 12:56:52 C 17 07 10.19 -16 33 00.9 U T08
2018-04-11 13:10:05 C 17 07 11.19 -16 32 56.1 U T08
2018-04-11 13:12:03 C 17 07 11.35 -16 32 55.6 U T08
2018-05-13 06:42:19 C 18 07 45.49 -09 35 28.8 q H15
2018-05-13 06:51:40 C 18 07 46.20 -09 35 21.4 q H15
2018-05-13 07:01:03 C 18 07 46.94 -09 35 13.7 q H15
2018-05-14 14:12:16 C 18 10 16.90 -09 09 16.1 U T08
2018-05-14 14:27:19 C 18 10 18.02 -09 09 03.5 U T08
2018-05-14 14:43:21 C 18 10 19.24 -09 08 49.6 U T08
2018-05-15 12:16:28 C 18 12 04.61 -08 50 29.1 U T05
2018-05-15 12:26:02 C 18 12 05.34 -08 50 20.8 U T05
2018-05-15 12:34:43 C 18 12 05.99 -08 50 13.3 U T05
2018-05-15 12:44:23 C 18 12 06.72 -08 50 05.0 U T05
2018-05-15 12:54:06 C 18 12 07.46 -08 49 56.7 U T05
2018-05-15 13:03:46 C 18 12 08.20 -08 49 48.4 U T05
2018-05-16 14:03:21 C 18 14 09.44 -08 28 02.9 U T05
2018-05-16 14:20:31 C 18 14 10.75 -08 27 47.6 U T05
2018-05-16 14:36:08 C 18 14 11.93 -08 27 33.9 U T05
2018-05-16 14:52:39 C 18 14 13.20 -08 27 19.3 U T05
2018-05-18 13:44:31 C 18 18 02.53 -07 45 10.1 U T08
2018-05-18 13:59:45 C 18 18 03.67 -07 44 57.0 U T08
2018-05-18 14:01:20 C 18 18 03.78 -07 44 55.2 U T08
2018-05-18 14:31:27 C 18 18 06.08 -07 44 27.3 U T08
2018-05-20 10:18:40 C 18 21 42.83 -07 03 31.1 U T05
2018-05-20 10:22:28 C 18 21 43.12 -07 03 27.4 U T05
2018-05-20 10:24:28 C 18 21 43.28 -07 03 25.6 U T05
2018-05-20 10:34:18 C 18 21 44.04 -07 03 16.1 U T05
2018-05-20 10:41:05 C 18 21 44.57 -07 03 09.8 U T05
2018-05-20 10:47:12 C 18 21 45.05 -07 03 04.1 U T05
2018-05-22 14:15:42 C 18 25 59.06 -06 13 01.5 U T08
2018-05-22 14:31:46 C 18 26 00.31 -06 12 45.4 U T08
2018-05-22 14:47:07 C 18 26 01.52 -06 12 30.1 U T08
2018-05-25 23:52:28 C 18 32 50.37 -04 49 41.4 q 160