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
2018-06-21 13:25:42 C 19 32 37.21 +08 08 43.8 U T05
2018-06-21 22:14:19 C 19 33 35.38 +08 19 38.8 U Z52
2018-06-21 23:00:35 C 19 33 40.08 +08 20 38.5 U Z52
2018-06-21 23:26:00 C 19 33 42.69 +08 21 10.7 U Z52
2018-06-22 00:12:17 C 19 33 47.37 +08 22 09.6 U Z52
2018-06-22 00:40:12 C 19 33 50.20 +08 22 45.4 U Z52
2018-06-22 00:43:25 C 19 33 50.24 +08 22 53.8 q 160
2018-06-22 00:46:09 C 19 33 50.51 +08 22 57.2 q 160
2018-06-22 00:49:02 C 19 33 50.80 +08 23 00.9 q 160
2018-06-22 01:26:30 C 19 33 54.86 +08 23 44.2 U Z52
2018-06-23 13:31:51 C 19 37 47.08 +09 09 38.3 U T08
2018-06-23 14:00:41 C 19 37 49.95 +09 10 14.0 U T08
2018-06-23 14:26:23 C 19 37 52.54 +09 10 46.1 U T08
2018-06-23 23:55:50 C 19 38 56.34 +09 22 26.9 q 160
2018-06-23 23:58:53 C 19 38 56.67 +09 22 30.9 q 160
2018-06-24 00:01:57 C 19 38 56.95 +09 22 34.7 q 160
2018-06-24 13:14:47 C 19 40 22.60 +09 39 18.1 U T08
2018-06-24 13:40:23 C 19 40 25.17 +09 39 49.8 U T08
2018-06-24 13:50:51 C 19 40 26.23 +09 40 02.7 U T08
2018-06-24 20:59:56 C 19 41 15.73 +09 48 41.2 t 073
2018-06-24 21:29:26 C 19 41 18.81 +09 49 18.1 t 073
2018-06-24 22:00:09 C 19 41 21.99 +09 49 56.5 t 073
2018-06-24 22:29:40 C 19 41 25.04 +09 50 33.2 t 073
2018-06-24 23:01:35 C 19 41 28.32 +09 51 13.1 t 073
2018-06-24 23:10:38 C 19 41 29.85 +09 51 19.4 U Z52
2018-06-24 23:32:16 C 19 41 31.47 +09 51 51.2 t 073
2018-06-24 23:51:38 C 19 41 34.13 +09 52 10.6 U Z52
2018-06-25 00:05:20 C 19 41 34.86 +09 52 32.1 t 073
2018-06-25 01:12:33 C 19 41 42.56 +09 53 51.2 U Z52
2018-06-25 07:46:02 C 19 42 26.42 +10 02 07.1 719
2018-06-25 08:52:41 C 19 42 33.17 +10 03 29.3 719
2018-06-25 21:10:07 C 19 43 56.69 +10 19 15.6 t L61
2018-06-25 21:10:28 C 19 43 56.73 +10 19 16.2 t L61
2018-06-25 21:24:47 C 19 43 58.22 +10 19 33.6 t L61
2018-06-25 22:24:56 C 19 44 04.66 +10 19 58.2 U Z52
2018-06-25 23:34:25 C 19 44 12.05 +10 21 24.0 U Z52
2018-06-26 01:07:01 C 19 44 21.80 +10 23 17.9 U Z52
2018-06-26 21:12:30 C 19 46 38.21 +10 48 35.1 t L61
2018-06-26 21:42:31 C 19 46 41.39 +10 49 11.7 t L61
2018-06-26 22:12:31 C 19 46 44.49 +10 49 49.0 t L61
2018-06-26 22:20:48 C 19 46 45.56 +10 49 07.9 U Z52
2018-06-26 22:59:40 C 19 46 49.75 +10 49 55.4 U Z52
2018-06-26 23:28:23 C 19 46 52.65 +10 50 35.3 q 160
2018-06-26 23:31:39 C 19 46 52.99 +10 50 39.5 q 160
2018-06-26 23:34:52 C 19 46 53.32 +10 50 43.4 q 160
2018-06-27 22:18:14 C 19 49 28.40 +11 18 00.8 q C95
2018-06-27 22:20:07 C 19 49 28.62 +11 18 03.1 q C95
2018-06-27 22:22:00 C 19 49 28.85 +11 18 05.3 q C95
2018-06-27 22:23:53 C 19 49 29.04 +11 18 07.6 q C95
2018-06-27 22:25:46 C 19 49 29.22 +11 18 10.0 q C95