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
2021-03-23 07:43:08 C 12 27 19.04 -04 33 36.3 V G96
2021-03-23 07:50:34 C 12 27 18.70 -04 33 33.2 V G96
2021-03-23 08:16:29 C 12 27 17.45 -04 33 22.3 V G96
2021-03-23 08:29:20 C 12 27 16.83 -04 33 16.8 V G96
2021-03-23 14:06:18 C 12 27 00.94 -04 30 53.5 V T08
2021-03-23 14:10:57 C 12 27 00.77 -04 30 51.3 V T08
2021-03-23 14:20:16 C 12 27 00.30 -04 30 48.1 V T08
2021-03-23 14:37:09 C 12 26 59.49 -04 30 40.4 V T08
2021-03-24 14:56:35 C 12 25 51.938 -04 20 15.40 V P07
2021-03-24 16:01:27 C 12 25 48.751 -04 19 47.71 V P07
2021-03-24 16:03:43 C 12 25 48.605 -04 19 47.21 V P07
2021-03-24 17:00:44 C 12 25 45.826 -04 19 22.26 V P07
2021-03-24 18:13:11 C 12 25 42.235 -04 18 50.83 V P07
2021-03-25 15:39:24 C 12 24 41.678 -04 09 35.96 V P07
2021-03-25 16:36:15 C 12 24 38.844 -04 09 11.09 V P07
2021-03-25 17:51:59 C 12 24 35.102 -04 08 38.08 V P07
2021-03-25 18:58:32 C 12 24 31.730 -04 08 09.74 V P07
2021-04-01 09:52:11 C 12 16 44.74 -02 56 29.3 V 703
2021-04-01 09:59:27 C 12 16 44.35 -02 56 26.6 V 703
2021-04-01 10:06:43 C 12 16 43.96 -02 56 22.2 V 703
2021-04-03 06:03:34 C 12 14 32.67 -02 35 50.9 V G96
2021-04-03 06:11:36 C 12 14 32.27 -02 35 47.1 V G96
2021-04-03 06:19:38 C 12 14 31.84 -02 35 43.2 V G96
2021-04-03 06:27:39 C 12 14 31.42 -02 35 39.6 V G96
2021-04-04 07:42:38 C 12 13 15.68 -02 23 47.8 V 703
2021-04-04 07:50:48 C 12 13 15.20 -02 23 44.3 V 703
2021-04-04 07:58:58 C 12 13 14.68 -02 23 40.5 V 703
2021-04-04 08:07:07 C 12 13 14.15 -02 23 36.8 V 703
2021-04-04 19:59:02 C 12 12 39.12 -02 17 52.4 o K95
2021-04-04 20:29:29 C 12 12 37.55 -02 17 38.2 o K95
2021-04-04 20:47:25 C 12 12 36.68 -02 17 29.0 o K95
2021-04-05 06:36:12 C 12 12 07.19 -02 13 00.2 U I41
2021-04-05 06:37:34 C 12 12 07.12 -02 12 59.5 U I41
2021-04-05 07:26:05 C 12 12 04.61 -02 12 36.7 U I41
2021-04-05 07:27:27 C 12 12 04.54 -02 12 36.0 U I41
2021-04-07 05:35:50 C 12 09 47.23 -01 50 48.9 U I41
2021-04-07 06:55:50 C 12 09 42.97 -01 50 10.6 V 703
2021-04-07 07:03:20 C 12 09 42.64 -01 50 07.5 V 703
2021-04-07 07:10:50 C 12 09 42.28 -01 50 03.5 V 703
2021-04-07 07:18:20 C 12 09 41.93 -01 50 00.5 V 703
2021-04-07 07:30:36 C 12 09 41.35 -01 49 54.7 U I41
2021-04-08 10:17:24 C 12 08 22.18 -01 37 14.8 V T08
2021-04-08 10:21:30 C 12 08 21.96 -01 37 13.5 V T08
2021-04-08 10:29:44 C 12 08 21.51 -01 37 09.4 V T08
2021-04-08 10:45:48 C 12 08 20.69 -01 37 01.4 V T08
2021-04-08 14:37:51 C 12 08 09.56 -01 35 13.8 q D29
2021-04-08 14:58:12 C 12 08 08.52 -01 35 04.4 q D29
2021-04-08 15:18:34 C 12 08 07.48 -01 34 54.7 q D29
2021-04-08 23:10:29 C 12 07 44.34 -01 31 13.9 V 130
2021-04-08 23:16:55 C 12 07 44.04 -01 31 10.8 V 130