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
2018-08-31 11:53:27 C 22 34 46.43 +09 28 41.4 U T08
2018-08-31 12:14:55 C 22 34 47.51 +09 28 18.0 U T08
2018-08-31 12:23:30 C 22 34 47.95 +09 28 08.6 U T08
2018-09-01 08:33:04 C 22 35 59.35 +09 06 16.9 V 703
2018-09-01 08:40:52 C 22 35 59.74 +09 06 08.5 V 703
2018-09-01 08:48:39 C 22 36 00.13 +09 06 00.0 V 703
2018-09-01 08:56:27 C 22 36 00.52 +09 05 51.6 V 703
2018-09-01 12:02:56 C 22 36 11.17 +09 02 37.1 U T05
2018-09-01 12:18:19 C 22 36 11.93 +09 02 20.5 U T05
2018-09-01 12:32:55 C 22 36 12.65 +09 02 04.5 U T05
2018-09-01 12:48:12 C 22 36 13.41 +09 01 47.9 U T05
2018-09-03 11:44:58 C 22 38 52.28 +08 11 24.1 U T08
2018-09-03 12:00:21 C 22 38 52.99 +08 11 07.5 U T08
2018-09-03 12:14:57 C 22 38 53.68 +08 10 51.6 U T08
2018-09-03 12:30:16 C 22 38 54.38 +08 10 35.2 U T08
2018-09-03 21:49:25 C 22 39 25.97 +08 00 25.4 o L52
2018-09-03 21:51:03 C 22 39 26.04 +08 00 23.6 o L52
2018-09-03 21:52:38 C 22 39 26.12 +08 00 21.9 o L52
2018-09-04 11:41:10 C 22 40 10.07 +07 45 52.7 U T08
2018-09-04 11:54:31 C 22 40 10.67 +07 45 38.5 U T08
2018-09-04 12:09:50 C 22 40 11.35 +07 45 21.9 U T08
2018-09-04 12:17:37 C 22 40 11.71 +07 45 13.7 U T08
2018-09-05 20:41:28 C 22 41 55.77 +07 10 43.2 q G34
2018-09-05 20:44:29 C 22 41 55.92 +07 10 40.1 q G34
2018-09-05 20:47:30 C 22 41 56.06 +07 10 36.9 q G34
2018-09-06 05:06:22 C 22 42 21.96 +07 02 01.9 V 703
2018-09-06 05:14:34 C 22 42 22.32 +07 01 53.3 V 703
2018-09-06 05:22:46 C 22 42 22.68 +07 01 44.7 V 703
2018-09-06 05:30:59 C 22 42 23.04 +07 01 36.5 V 703
2018-09-06 09:27:25 C 22 42 33.30 +06 57 28.4 V G96
2018-09-06 09:35:27 C 22 42 33.66 +06 57 19.9 V G96
2018-09-06 09:43:28 C 22 42 34.03 +06 57 11.5 V G96
2018-09-06 09:51:30 C 22 42 34.39 +06 57 03.0 V G96
2018-09-06 17:29:23 C 22 43 00.06 +06 49 10.1 q C97
2018-09-06 17:31:34 C 22 43 00.16 +06 49 07.7 q C97
2018-09-06 17:33:44 C 22 43 00.24 +06 49 05.8 q C97
2018-09-06 17:35:56 C 22 43 00.35 +06 49 03.7 q C97
2018-09-07 07:02:29 C 22 43 40.07 +06 34 59.7 U I41
2018-09-07 07:03:48 C 22 43 40.13 +06 34 58.3 U I41
2018-09-08 17:45:34 C 22 45 23.45 +05 59 24.5 q C97
2018-09-08 17:47:44 C 22 45 23.53 +05 59 22.3 q C97
2018-09-08 17:49:55 C 22 45 23.63 +05 59 20.2 q C97
2018-09-08 17:52:05 C 22 45 23.71 +05 59 18.2 q C97
2018-09-09 06:31:48 C 22 45 59.67 +05 46 22.6 V 703
2018-09-09 06:39:22 C 22 45 59.97 +05 46 15.1 V 703
2018-09-09 06:46:56 C 22 46 00.27 +05 46 07.3 V 703
2018-09-09 06:54:31 C 22 46 00.59 +05 45 59.7 V 703
2018-09-09 11:44:50 C 22 46 13.59 +05 41 12.4 U T05
2018-09-09 12:00:19 C 22 46 14.21 +05 40 56.7 U T05
2018-09-09 12:15:01 C 22 46 14.81 +05 40 41.8 U T05