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
2005-09-17 19:44:52 C 20 29 50.98 -07 56 50.8 r 084
2005-09-17 19:46:59 C 20 29 51.32 -07 56 51.8 r 084
2005-09-19 03:12:41 C 20 34 40.01 -08 09 13.1 o 644
2005-09-19 03:16:16 C 20 34 40.54 -08 09 14.4 o 644
2005-09-19 03:42:46 C 20 34 44.40 -08 09 24.7 o 644
2005-09-19 03:46:15 C 20 34 44.91 -08 09 26.0 o 644
2005-09-19 04:21:17 C 20 34 50.01 -08 09 39.5 o 644
2005-09-19 04:26:12 C 20 34 50.75 -08 09 41.4 o 644
2005-09-19 04:36:02 C 20 34 52.16 -08 09 45.1 o 644
2005-09-19 04:41:11 C 20 34 52.91 -08 09 47.1 o 644
2005-09-19 04:48:35 C 20 34 53.99 -08 09 49.9 o 644
2005-09-19 05:05:53 C 20 34 56.51 -08 09 56.7 o 644
2005-09-19 05:12:20 C 20 34 57.45 -08 09 58.9 o 644
2005-09-19 05:19:04 C 20 34 58.43 -08 10 01.5 o 644
2005-09-19 05:37:15 C 20 35 01.08 -08 10 08.4 o 644
2005-09-19 05:43:54 C 20 35 02.05 -08 10 10.8 o 644
2005-09-19 05:50:19 C 20 35 02.98 -08 10 13.3 o 644
2005-09-19 19:19:28 C 20 37 05.58 -08 15 23.6 r 084
2005-09-19 19:21:35 C 20 37 05.88 -08 15 24.1 r 084
2005-09-20 19:09:04 C 20 40 40.11 -08 23 54.9 c 639
2005-09-20 19:14:05 C 20 40 40.83 -08 23 56.2 c 639
2005-09-20 19:21:05 C 20 40 41.84 -08 23 59.0 c 639
2005-09-20 19:29:34 C 20 40 43.08 -08 24 01.6 c 639
2005-09-20 19:42:35 C 20 40 44.95 -08 24 06.3 c 639
2005-09-21 01:08:49 C 20 41 33.96 -08 25 57.6 r H51
2005-09-21 01:29:51 C 20 41 37.03 -08 26 04.8 r H51
2005-09-21 01:56:30 C 20 41 40.82 -08 26 14.5 r H51
2005-09-21 19:04:28 C 20 44 13.16 -08 32 00.5 r A13
2005-09-21 19:25:48 C 20 44 16.20 -08 32 07.5 r A13
2005-09-21 19:26:51 C 20 44 16.36 -08 32 07.8 r A13
2005-09-21 19:29:02 C 20 44 16.67 -08 32 08.6 r A13
2005-09-23 12:10:47 C 20 50 12.64 -08 44 18.6 r E19
2005-09-23 12:14:50 C 20 50 13.16 -08 44 20.8 r E19
2005-09-23 12:18:55 C 20 50 13.70 -08 44 21.6 r E19
2005-09-24 19:47:57 C 20 54 45.41 -08 53 42.9 r 084
2005-09-26 18:50:57 C 21 01 23.79 -09 05 23.4 r 084
2005-09-26 18:53:04 C 21 01 24.07 -09 05 24.3 r 084
2005-09-28 03:47:33 C 21 05 57.42 -09 12 24.9 16.0 c 704
2005-09-28 04:03:11 C 21 05 59.47 -09 12 28.0 16.6 c 704
2005-09-28 04:18:28 C 21 06 01.50 -09 12 31.3 16.3 c 704
2005-09-28 04:33:36 C 21 06 03.52 -09 12 34.1 16.9 c 704
2005-09-28 04:48:43 C 21 06 05.50 -09 12 37.4 16.2 c 704
2005-09-28 20:47:17 C 21 08 16.86 -09 15 46.1 o 493
2005-09-28 21:47:55 C 21 08 24.73 -09 15 57.4 o 493
2005-09-28 23:25:28 C 21 08 37.69 -09 16 15.4 o 493
2005-09-29 11:36:04 C 21 10 17.59 -09 18 27.8 m 355
2005-09-29 11:39:07 C 21 10 17.97 -09 18 29.3 m 355
2005-09-29 11:42:21 C 21 10 18.33 -09 18 30.1 m 355
2005-09-29 12:12:02 C 21 10 22.21 -09 18 35.6 r 379
2005-09-29 12:13:39 C 21 10 22.44 -09 18 35.8 r 379