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
2005-09-29 18:55:35 C 21 11 17.29 -09 19 45.7 o 493
2005-09-29 19:19:50 C 21 11 20.61 -09 19 50.4 o 493
2005-09-29 19:40:02 C 21 11 23.22 -09 19 53.5 o 493
2005-09-29 21:16:13 C 21 11 35.77 -09 20 10.2 o 493
2005-09-30 19:26:24 C 21 14 34.38 -09 23 45.3 o 493
2005-09-30 19:33:09 C 21 14 35.36 -09 23 49.1 o 493
2005-09-30 19:52:39 C 21 14 37.83 -09 23 49.6 o 493
2005-09-30 20:37:58 C 21 14 43.58 -09 23 56.5 o 493
2005-09-30 21:56:17 C 21 14 53.76 -09 24 08.3 o 493
2005-09-30 22:54:58 C 21 15 01.32 -09 24 17.0 o 493
2005-10-01 02:51:57 C 21 15 33.69 -09 24 51.7 o 699
2005-10-01 03:26:20 C 21 15 38.11 -09 24 56.8 o 699
2005-10-01 04:00:44 C 21 15 42.51 -09 25 02.0 o 699
2005-10-01 04:35:07 C 21 15 46.91 -09 25 06.7 o 699
2005-10-01 18:53:10 C 21 17 41.03 -09 27 08.5 o 493
2005-10-01 19:09:12 C 21 17 42.99 -09 27 10.7 o 493
2005-10-01 19:22:31 C 21 17 44.79 -09 27 12.6 o 493
2005-10-01 19:56:21 C 21 17 49.12 -09 27 17.4 o 493
2005-10-01 20:53:25 C 21 17 56.29 -09 27 25.0 o 493
2005-10-02 19:17:44 C 21 20 52.77 -09 30 13.7 o 493
2005-10-02 19:46:14 C 21 20 56.33 -09 30 17.1 o 493
2005-10-03 18:51:53 C 21 23 56.09 -09 32 47.3 o 493
2005-10-03 19:04:24 C 21 23 57.64 -09 32 48.7 o 493
2005-10-03 19:36:04 C 21 24 01.21 -09 32 56.1 r 084
2005-10-03 19:37:54 C 21 24 01.95 -09 32 52.2 o 493
2005-10-03 19:38:44 C 21 24 01.54 -09 32 56.0 r 084
2005-10-03 20:40:47 C 21 24 09.67 -09 32 58.6 o 493
2005-10-07 03:26:49 C 21 34 07.14 -09 38 32.1 17.4 c 704
2005-10-07 03:42:24 C 21 34 09.01 -09 38 33.1 17.3 c 704
2005-10-07 03:57:57 C 21 34 10.86 -09 38 33.3 17.8 c 704
2005-10-07 04:13:29 C 21 34 12.73 -09 38 34.4 17.4 c 704
2005-10-07 04:29:00 C 21 34 14.58 -09 38 35.0 17.3 c 704
2005-10-08 02:08:05 C 21 36 55.50 -09 39 21.7 16.6 c 704
2005-10-08 02:23:48 C 21 36 57.37 -09 39 22.3 16.9 c 704
2005-10-08 02:39:32 C 21 36 59.23 -09 39 22.6 16.9 c 704
2005-10-08 02:55:14 C 21 37 01.08 -09 39 23.2 16.6 c 704
2005-10-08 03:10:56 C 21 37 02.93 -09 39 23.8 17.2 c 704
2005-10-08 19:37:38 C 21 39 03.33 -09 39 49.5 r 084
2005-10-26 03:20:37 C 22 25 21.49 -08 58 29.4 17.3 c 704
2005-10-26 03:37:34 C 22 25 23.14 -08 58 25.5 18.3 c 704
2005-10-26 03:54:16 C 22 25 24.82 -08 58 22.7 17.8 c 704
2005-10-26 04:10:57 C 22 25 26.45 -08 58 19.4 17.5 c 704
2005-10-26 04:27:43 C 22 25 28.13 -08 58 16.1 17.5 c 704
2005-10-27 01:49:22 C 22 27 39.10 -08 53 57.0 o 699
2005-10-27 01:50:41 C 22 27 39.15 -08 53 56.8 o 699
2005-10-27 02:18:13 C 22 27 41.89 -08 53 51.4 o 699
2005-10-27 02:19:32 C 22 27 41.96 -08 53 51.3 o 699
2005-10-27 02:47:05 C 22 27 44.77 -08 53 45.6 o 699
2005-10-27 02:48:24 C 22 27 44.82 -08 53 44.6 o 699
2005-10-27 03:15:59 C 22 27 47.58 -08 53 39.5 o 699