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
2002-09-05 09:55:04 C 04 21 34.50 +19 16 32.7 19.3 c 704
2002-09-05 10:15:50 C 04 21 35.37 +19 16 30.5 19.6 c 704
2002-09-05 10:36:21 C 04 21 36.27 +19 16 28.0 20.1 c 704
2002-09-05 10:56:59 C 04 21 37.03 +19 16 26.8 20.1 c 704
2002-09-05 11:17:35 C 04 21 38.04 +19 16 24.8 20.1 c 704
2002-09-25 14:47:44 C 04 34 29.34 +18 06 44.2 t 608
2002-09-25 15:02:38 C 04 34 29.48 +18 06 42.2 t 608
2002-09-25 15:18:36 C 04 34 29.62 +18 06 39.5 t 608
2002-10-30 14:03:20 C 04 14 37.17 +14 28 35.3 19.7 c 608
2002-10-30 14:19:05 C 04 14 36.33 +14 28 30.4 19.8 c 608
2002-10-30 14:35:08 C 04 14 35.49 +14 28 25.6 19.6 c 608
2002-11-04 09:48:23 C 04 08 26.00 +13 53 59.2 c 670
2002-11-04 11:21:41 C 04 08 20.85 +13 53 32.6 c 670
2002-11-07 08:34:34 C 04 04 26.96 +13 33 09.9 c 704
2002-11-07 08:59:47 C 04 04 25.45 +13 33 03.8 c 704
2002-11-07 09:25:22 C 04 04 23.98 +13 32 55.5 c 704
2002-11-07 09:50:47 C 04 04 22.43 +13 32 48.6 c 704
2002-11-07 10:15:53 C 04 04 20.96 +13 32 41.4 c 704
2002-11-11 05:59:44 C 03 59 03.60 +13 06 25.3 19.1 c 704
2002-11-11 06:24:44 C 03 59 02.14 +13 06 19.3 19.6 c 704
2002-11-11 06:49:32 C 03 59 00.68 +13 06 12.3 19.6 c 704
2002-11-11 07:14:36 C 03 58 59.17 +13 06 04.4 19.7 c 704
2002-11-11 07:39:25 C 03 58 57.68 +13 05 57.5 20.0 c 704
2002-11-11 07:41:34 C 03 58 57.67 +13 05 57.4 c 670
2002-11-11 10:44:49 C 03 58 46.68 +13 05 05.6 c 670
2002-11-16 01:01:13 C 03 52 22.46 +12 35 16.9 941
2002-11-16 01:06:30 C 03 52 22.25 +12 35 15.4 941
2002-11-16 01:11:47 C 03 52 21.99 +12 35 13.8 941
2002-11-16 01:17:04 C 03 52 21.77 +12 35 12.1 941
2002-11-23 09:04:00 C 03 42 30.00 +11 53 00.3 19.3 c 644
2002-11-23 09:34:41 C 03 42 28.28 +11 52 53.6 19.4 c 644
2002-11-23 10:05:51 C 03 42 26.59 +11 52 46.7 19.4 c 644
2002-11-26 05:26:39 C 03 38 54.31 +11 38 44.2 c 670
2002-11-26 06:01:29 C 03 38 52.48 +11 38 37.7 c 670
2002-11-26 06:18:43 C 03 38 51.55 +11 38 33.5 c 670
2002-12-02 05:21:35 C 03 31 57.00 +11 13 19.2 19.1 c 704
2002-12-02 05:43:40 C 03 31 55.99 +11 13 16.5 19.2 c 704
2002-12-02 06:05:38 C 03 31 54.97 +11 13 12.8 19.5 c 704
2002-12-02 06:27:52 C 03 31 53.93 +11 13 09.4 20.0 c 704
2002-12-02 06:50:06 C 03 31 52.87 +11 13 05.8 19.1 c 704
2003-01-16 04:36:02 C 03 16 50.31 +11 24 51.0 c 711
2003-01-16 04:59:30 C 03 16 50.67 +11 24 54.8 c 711
2003-01-16 05:23:08 C 03 16 50.99 +11 24 57.7 c 711
2005-03-13 12:22:34 C 15 38 36.58 -17 15 57.5 r G96
2005-03-13 12:28:03 C 15 38 36.88 -17 15 57.4 r G96
2005-03-13 12:33:33 C 15 38 37.18 -17 15 57.3 r G96
2005-03-13 12:39:03 C 15 38 37.48 -17 15 56.9 r G96
2005-04-05 09:34:22 C 16 06 25.46 -16 08 23.9 18.2 c 704
2005-04-05 09:49:02 C 16 06 26.07 -16 08 20.5 18.6 c 704
2005-04-05 10:03:55 C 16 06 26.63 -16 08 17.1 18.5 c 704