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
2005-10-27 03:17:18 C 22 27 47.67 -08 53 39.1 o 699
2005-10-28 03:12:09 C 22 30 12.34 -08 48 34.6 17.6 c 704
2005-10-28 03:29:21 C 22 30 14.01 -08 48 30.7 17.6 c 704
2005-10-28 03:46:21 C 22 30 15.68 -08 48 27.1 17.5 c 704
2005-10-28 04:03:16 C 22 30 17.30 -08 48 23.7 17.8 c 704
2005-10-28 04:20:09 C 22 30 18.99 -08 48 19.6 18.3 c 704
2005-10-29 04:02:05 C 22 32 41.17 -08 43 06.2 r G96
2005-10-29 04:10:03 C 22 32 41.92 -08 43 04.4 r G96
2005-10-29 04:17:51 C 22 32 42.68 -08 43 02.6 r G96
2005-10-29 04:25:40 C 22 32 43.44 -08 43 00.8 r G96
2005-10-31 03:57:20 C 22 37 25.09 -08 31 53.8 18.3 c 704
2005-10-31 04:14:32 C 22 37 26.71 -08 31 48.6 18.2 c 704
2005-10-31 04:31:44 C 22 37 28.38 -08 31 44.8 18.3 c 704
2005-10-31 04:49:00 C 22 37 29.99 -08 31 40.5 17.9 c 704
2005-10-31 05:06:13 C 22 37 31.69 -08 31 36.4 17.2 c 704
2005-11-01 18:05:28 C 22 41 08.03 -08 22 26.8 r 084
2005-11-18 02:04:33 C 23 17 03.15 -06 20 36.7 o 644
2005-11-18 02:35:03 C 23 17 05.75 -06 20 25.5 o 644
2005-11-18 03:06:02 C 23 17 08.38 -06 20 14.8 o 644
2005-12-06 01:47:05 C 23 53 11.40 -03 32 38.0 r 703
2005-12-06 01:56:16 C 23 53 12.12 -03 32 34.1 r 703
2005-12-06 02:05:28 C 23 53 12.87 -03 32 31.3 r 703
2005-12-06 02:14:38 C 23 53 13.63 -03 32 26.5 r 703
2008-01-25 09:44:43 C 12 32 31.59 -06 54 37.1 o H55
2008-01-25 09:53:52 C 12 32 31.69 -06 54 39.7 o H55
2008-01-25 10:03:35 C 12 32 31.76 -06 54 40.0 o H55
2008-02-27 08:20:49 C 12 27 44.22 -06 03 59.6 o 691
2008-02-27 08:46:08 C 12 27 43.52 -06 03 54.2 o 691
2008-02-27 09:16:27 C 12 27 42.68 -06 03 47.4 o 691
2008-03-02 08:31:35 C 12 25 00.03 -05 41 01.5 o 691
2008-03-02 08:56:58 C 12 24 59.21 -05 40 55.0 o 691
2008-03-02 09:22:22 C 12 24 58.38 -05 40 48.2 o 691
2008-03-08 09:43:38 C 12 20 00.89 -04 59 04.6 20.1 c 704
2008-03-08 09:59:28 C 12 20 00.32 -04 58 58.6 19.6 c 704
2008-03-08 10:15:26 C 12 19 59.65 -04 58 53.2 19.7 c 704
2008-03-08 10:31:37 C 12 19 59.06 -04 58 47.4 19.9 c 704
2008-03-10 06:31:09 C 12 18 17.52 -04 44 24.1 o 691
2008-03-10 06:56:38 C 12 18 16.49 -04 44 15.5 o 691
2008-03-10 07:22:09 C 12 18 15.44 -04 44 07.0 o 691
2008-03-11 07:45:33 C 12 17 16.86 -04 35 47.3 19.4 c 704
2008-03-11 08:01:34 C 12 17 16.17 -04 35 43.0 19.6 c 704
2008-03-11 08:17:36 C 12 17 15.51 -04 35 38.0 19.6 c 704
2008-03-11 08:33:50 C 12 17 14.81 -04 35 32.5 19.8 c 704
2008-03-11 08:49:51 C 12 17 14.16 -04 35 27.2 19.6 c 704
2008-03-28 06:06:08 C 11 58 33.42 -01 51 58.6 r G96
2008-03-28 06:13:16 C 11 58 33.06 -01 51 55.4 r G96
2008-03-28 06:20:20 C 11 58 32.70 -01 51 52.3 r G96
2008-03-28 06:27:35 C 11 58 32.30 -01 51 49.1 r G96
2008-03-29 07:24:24 C 11 57 18.57 -01 40 42.8 r G96
2008-03-29 07:32:41 C 11 57 18.18 -01 40 39.2 r G96