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
2018-09-29 07:09:54 C 23 06 25.38 -00 43 15.0 V 703
2018-09-29 07:17:49 C 23 06 25.64 -00 43 19.6 V 703
2018-09-29 07:25:44 C 23 06 25.92 -00 43 24.2 V 703
2018-09-29 20:36:24 C 23 06 57.83 -00 51 00.9 o C41
2018-09-29 20:38:00 C 23 06 57.90 -00 51 02.0 o C41
2018-09-29 21:27:10 C 23 06 59.64 -00 51 30.0 o C41
2018-09-29 21:29:12 C 23 06 59.72 -00 51 31.1 o C41
2018-09-29 21:30:44 C 23 06 59.76 -00 51 31.6 o C41
2018-09-30 05:50:58 C 23 07 20.28 -00 56 09.0 V G96
2018-09-30 05:59:06 C 23 07 20.60 -00 56 13.8 V G96
2018-09-30 06:07:15 C 23 07 20.91 -00 56 18.6 V G96
2018-09-30 06:15:24 C 23 07 21.21 -00 56 24.0 V G96
2018-09-30 17:26:31 C 23 07 48.63 -01 02 30.2 q C97
2018-09-30 17:28:41 C 23 07 48.70 -01 02 31.4 q C97
2018-09-30 17:30:52 C 23 07 48.74 -01 02 32.5 q C97
2018-09-30 17:33:04 C 23 07 48.84 -01 02 33.8 q C97
2018-09-30 19:31:23 C 23 07 53.94 -01 03 44.2 q 006
2018-09-30 19:35:23 C 23 07 54.10 -01 03 46.7 q 006
2018-09-30 19:40:23 C 23 07 54.32 -01 03 48.9 q 006
2018-09-30 19:45:23 C 23 07 54.46 -01 03 52.3 q 006
2018-09-30 19:50:23 C 23 07 54.64 -01 03 54.9 q 006
2018-10-01 10:43:50 C 23 08 29.16 -01 11 47.2 U T08
2018-10-01 10:58:21 C 23 08 29.66 -01 11 55.0 U T08
2018-10-01 11:12:52 C 23 08 30.18 -01 12 02.6 U T08
2018-10-01 11:27:07 C 23 08 30.69 -01 12 10.1 U T08
2018-10-03 10:21:48 C 23 10 24.17 -01 35 55.1 U T05
2018-10-03 10:36:12 C 23 10 24.67 -01 36 02.1 U T05
2018-10-03 10:50:44 C 23 10 25.18 -01 36 09.1 U T05
2018-10-03 11:05:08 C 23 10 25.69 -01 36 16.1 U T05
2018-10-03 18:33:46 C 23 10 45.37 -01 39 57.8 q 006
2018-10-03 18:37:46 C 23 10 45.52 -01 39 59.3 q 006
2018-10-03 18:41:46 C 23 10 45.66 -01 40 01.1 q 006
2018-10-03 18:45:46 C 23 10 45.84 -01 40 03.7 q 006
2018-10-03 18:48:46 C 23 10 45.88 -01 40 04.7 q 006
2018-10-03 18:52:46 C 23 10 46.08 -01 40 06.4 q 006
2018-10-04 08:47:49 C 23 11 18.981 -01 46 31.47 U F52
2018-10-04 09:04:39 C 23 11 19.579 -01 46 38.76 U F52
2018-10-04 09:21:26 C 23 11 20.156 -01 46 47.01 U F52
2018-10-05 10:15:02 C 23 12 20.32 -01 57 58.2 U T08
2018-10-05 10:29:38 C 23 12 20.84 -01 58 04.6 U T08
2018-10-05 10:44:11 C 23 12 21.35 -01 58 11.1 U T08
2018-10-05 10:58:42 C 23 12 21.87 -01 58 17.3 U T08
2018-10-06 04:32:19 C 23 13 05.76 -02 05 53.4 V G96
2018-10-06 04:40:28 C 23 13 06.05 -02 05 56.8 V G96
2018-10-06 04:48:35 C 23 13 06.34 -02 06 00.3 V G96
2018-10-06 04:53:49 C 23 13 06.52 -02 06 02.6 V 703
2018-10-06 04:56:42 C 23 13 06.63 -02 06 03.7 V G96
2018-10-06 05:01:29 C 23 13 06.80 -02 06 05.5 V 703
2018-10-06 05:09:10 C 23 13 07.07 -02 06 08.8 V 703
2018-10-06 05:16:49 C 23 13 07.35 -02 06 12.0 V 703