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
2005-04-05 10:18:32 C 16 06 27.20 -16 08 13.5 18.4 c 704
2005-04-05 10:34:10 C 16 06 27.88 -16 08 10.1 18.6 c 704
2005-04-19 14:50:38 C 16 18 50.11 -14 17 45.4 t 608
2005-04-19 15:05:28 C 16 18 50.54 -14 17 39.0 t 608
2005-04-20 10:46:33 C 16 19 25.79 -14 09 23.5 t 608
2005-04-20 11:02:11 C 16 19 26.21 -14 09 16.9 t 608
2005-04-20 11:16:53 C 16 19 26.58 -14 09 10.7 t 608
2005-04-29 07:22:42 C 16 24 30.37 -12 26 05.6 r H45
2005-04-29 07:24:43 C 16 24 30.39 -12 26 04.2 r H45
2005-04-29 07:26:48 C 16 24 30.47 -12 26 03.1 r H45
2005-05-02 23:54:04 C 16 25 59.49 -11 35 17.1 r 084
2005-05-02 23:57:14 C 16 25 59.52 -11 35 15.3 r 084
2005-05-03 09:23:24 C 16 26 07.60 -11 29 29.2 r 703
2005-05-03 09:34:37 C 16 26 07.70 -11 29 22.3 16.9 c 704
2005-05-03 09:35:09 C 16 26 07.72 -11 29 21.9 r 703
2005-05-03 09:46:49 C 16 26 07.85 -11 29 14.6 r 703
2005-05-03 09:52:25 C 16 26 07.88 -11 29 11.6 17.3 c 704
2005-05-03 09:58:28 C 16 26 07.98 -11 29 07.7 r 703
2005-05-03 10:08:24 C 16 26 08.03 -11 29 01.8 17.4 c 704
2005-05-03 10:23:52 C 16 26 08.18 -11 28 52.6 17.4 c 704
2005-05-03 10:38:16 C 16 26 08.37 -11 28 42.5 17.7 c 704
2005-05-06 01:11:45 C 16 26 56.03 -10 49 38.4 r 170
2005-05-06 01:16:12 C 16 26 56.07 -10 49 35.5 r 170
2005-05-06 01:20:38 C 16 26 56.11 -10 49 32.6 r 170
2005-05-08 08:20:46 C 16 27 28.30 -10 13 15.9 c 691
2005-05-08 08:46:04 C 16 27 28.42 -10 12 58.6 c 691
2005-05-08 09:11:16 C 16 27 28.50 -10 12 41.7 c 691
2005-05-09 08:48:03 C 16 27 39.63 -09 56 37.2 r 703
2005-05-09 08:55:46 C 16 27 39.67 -09 56 32.1 r 703
2005-05-09 09:03:32 C 16 27 39.67 -09 56 26.4 r 703
2005-05-09 23:30:19 C 16 27 45.74 -09 46 31.7 r 084
2005-05-09 23:33:29 C 16 27 45.73 -09 46 29.6 r 084
2005-05-11 01:06:19 C 16 27 55.11 -09 28 31.6 c J93
2005-05-11 01:14:26 C 16 27 55.12 -09 28 26.0 c J93
2005-05-11 01:21:06 C 16 27 55.14 -09 28 21.3 c J93
2005-05-13 08:52:53 C 16 28 09.07 -08 48 08.7 c 691
2005-05-13 09:17:47 C 16 28 09.02 -08 47 50.3 c 691
2005-05-13 09:42:44 C 16 28 08.98 -08 47 31.8 c 691
2005-05-16 06:55:42 C 16 28 16.38 -07 55 23.5 16.8 c 704
2005-05-16 07:09:14 C 16 28 16.32 -07 55 13.2 16.5 c 704
2005-05-16 07:22:41 C 16 28 16.25 -07 55 03.1 17.0 c 704
2005-05-16 07:36:09 C 16 28 16.20 -07 54 52.4 16.7 c 704
2005-05-16 07:49:42 C 16 28 16.16 -07 54 41.9 16.8 c 704
2005-05-20 02:54:29 C 16 28 08.72 -06 42 36.3 834
2005-05-20 03:39:16 C 16 28 08.37 -06 42 00.6 834
2005-05-20 04:24:27 C 16 28 07.99 -06 41 23.7 834
2005-05-20 06:05:43 C 16 28 08.27 -06 40 24.9 c G92
2005-05-20 06:44:20 C 16 28 07.97 -06 39 53.8 c G92
2005-05-20 07:23:01 C 16 28 07.65 -06 39 22.9 c G92
2005-05-20 07:31:03 C 16 28 07.18 -06 39 17.7 c H45