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
2018-08-13 19:32:44 C 22 02 48.00 +16 27 34.4 q 168
2018-08-13 19:47:14 C 22 02 49.25 +16 27 22.8 q 168
2018-08-13 20:05:11 C 22 02 51.95 +16 27 14.5 t 073
2018-08-13 20:45:35 C 22 02 54.27 +16 26 36.8 q 168
2018-08-13 20:58:17 C 22 02 56.50 +16 26 33.5 t 073
2018-08-13 21:57:18 C 22 03 01.46 +16 25 47.4 t 073
2018-08-13 22:18:33 C 22 03 03.26 +16 25 30.5 t 073
2018-08-14 15:37:14 C 22 04 39.11 +16 11 39.1 q D29
2018-08-14 15:57:35 C 22 04 40.76 +16 11 22.6 q D29
2018-08-14 16:17:57 C 22 04 42.40 +16 11 06.0 q D29
2018-08-15 02:03:48 C 22 05 34.62 +16 02 55.7 U J27
2018-08-15 02:09:28 C 22 05 35.08 +16 02 50.9 U J27
2018-08-15 02:13:15 C 22 05 35.38 +16 02 47.7 U J27
2018-08-15 12:38:55 C 22 06 31.224 +15 54 14.99 U F51
2018-08-15 12:57:22 C 22 06 32.675 +15 53 59.05 U F51
2018-08-15 13:15:46 C 22 06 34.155 +15 53 42.78 U F51
2018-08-15 13:34:12 C 22 06 35.625 +15 53 26.66 U F51
2018-08-15 18:14:40 C 22 07 03.21 +15 49 05.3 q 168
2018-08-15 18:22:40 C 22 07 03.88 +15 48 58.5 q 168
2018-08-15 20:24:59 C 22 07 13.95 +15 47 14.9 q 168
2018-08-15 20:31:16 C 22 07 14.46 +15 47 09.5 q 168
2018-08-16 20:34:47 C 22 09 22.50 +15 26 09.5 U Z52
2018-08-16 20:52:33 C 22 09 23.97 +15 25 54.2 U Z52
2018-08-16 21:11:53 C 22 09 25.56 +15 25 37.4 U Z52
2018-08-16 23:12:08 C 22 09 34.95 +15 23 58.5 q 108
2018-08-16 23:17:42 C 22 09 35.40 +15 23 53.3 q 108
2018-08-16 23:21:02 C 22 09 35.64 +15 23 50.6 q 108
2018-08-17 02:26:26 C 22 09 52.82 +15 21 01.9 V W71
2018-08-17 02:29:03 C 22 09 53.03 +15 20 59.7 V W71
2018-08-17 02:30:59 C 22 09 53.19 +15 20 58.0 V W71
2018-08-17 02:33:24 C 22 09 53.38 +15 20 56.0 V W71
2018-08-17 02:35:31 C 22 09 53.54 +15 20 54.0 V W71
2018-08-17 19:05:38 C 22 11 17.36 +15 05 54.9 q 168
2018-08-17 19:11:38 C 22 11 17.84 +15 05 49.5 q 168
2018-08-17 21:04:22 C 22 11 28.17 +15 04 13.0 14.4 q K83
2018-08-17 21:18:16 C 22 11 29.24 +15 04 00.6 14.4 q K83
2018-08-17 21:18:36 C 22 11 27.74 +15 03 53.7 q 168
2018-08-17 21:24:36 C 22 11 28.20 +15 03 48.2 q 168
2018-08-17 21:29:09 C 22 11 30.09 +15 03 50.8 14.5 q K83
2018-08-17 22:30:07 C 22 11 34.80 +15 02 50.8 V G33
2018-08-17 22:32:01 C 22 11 34.90 +15 02 49.2 V G33
2018-08-19 00:02:14 C 22 13 41.93 +14 39 12.4 q 122
2018-08-19 00:05:22 C 22 13 42.18 +14 39 09.3 q 122
2018-08-19 00:08:14 C 22 13 42.39 +14 39 06.6 q 122
2018-08-19 19:36:22 C 22 15 17.84 +14 20 27.4 q 168
2018-08-19 21:21:32 C 22 15 25.64 +14 18 46.3 q 168
2018-08-20 04:29:01 C 22 16 00.71 +14 12 00.6 V W71
2018-08-20 04:30:19 C 22 16 00.80 +14 11 59.3 V W71
2018-08-20 04:31:41 C 22 16 00.90 +14 11 58.0 V W71
2018-08-20 04:33:14 C 22 16 01.01 +14 11 56.6 V W71