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
2018-08-20 18:40:04 C 22 17 08.46 +13 58 03.7 q 168
2018-08-20 18:48:04 C 22 17 09.04 +13 57 56.0 q 168
2018-08-21 02:45:40 C 22 17 47.06 +13 50 11.8 V W71
2018-08-21 02:47:13 C 22 17 47.17 +13 50 10.1 V W71
2018-08-21 02:48:27 C 22 17 47.26 +13 50 09.0 V W71
2018-08-21 02:49:36 C 22 17 47.33 +13 50 07.8 V W71
2018-08-21 02:50:43 C 22 17 47.42 +13 50 06.6 V W71
2018-08-21 12:10:50 C 22 18 28.86 +13 41 08.0 U T05
2018-08-21 12:31:12 C 22 18 30.23 +13 40 47.5 U T05
2018-08-21 12:42:12 C 22 18 30.97 +13 40 36.2 U T05
2018-08-21 12:55:36 C 22 18 31.88 +13 40 22.6 U T05
2018-08-21 20:22:29 C 22 19 09.03 +13 32 35.1 V Z52
2018-08-21 20:36:23 C 22 19 10.04 +13 32 21.5 V Z52
2018-08-21 20:37:52 C 22 19 09.75 +13 32 26.3 t 073
2018-08-21 20:50:16 C 22 19 11.04 +13 32 07.5 V Z52
2018-08-21 21:18:01 C 22 19 12.51 +13 31 46.5 t 073
2018-08-21 21:55:03 C 22 19 15.68 +13 31 04.1 V Z52
2018-08-21 22:00:35 C 22 19 15.42 +13 31 04.2 t 073
2018-08-23 03:31:21 C 22 21 29.65 +13 01 12.2 q W19
2018-08-23 03:35:22 C 22 21 29.91 +13 01 08.2 q W19
2018-08-23 03:39:23 C 22 21 30.19 +13 01 04.1 q W19
2018-08-23 03:43:26 C 22 21 30.46 +13 00 59.9 q W19
2018-08-23 03:47:32 C 22 21 30.74 +13 00 55.8 q W19
2018-08-23 03:50:47 C 22 21 30.95 +13 00 52.4 q W19
2018-08-23 19:40:04 C 22 22 40.89 +12 44 35.2 t 073
2018-08-23 20:20:17 C 22 22 43.55 +12 43 54.4 t 073
2018-08-23 21:03:58 C 22 22 46.39 +12 43 09.0 t 073
2018-08-23 21:42:55 C 22 22 49.53 +12 42 24.2 V Z52
2018-08-23 21:53:02 C 22 22 50.21 +12 42 13.9 V Z52
2018-08-24 02:24:35 C 22 23 10.18 +12 37 37.2 V W71
2018-08-24 02:26:33 C 22 23 10.32 +12 37 35.1 V W71
2018-08-24 02:29:07 C 22 23 10.51 +12 37 32.2 V W71
2018-08-24 02:30:51 C 22 23 10.60 +12 37 30.6 V W71
2018-08-24 02:32:15 C 22 23 10.71 +12 37 29.0 V W71
2018-08-24 20:28:01 C 22 24 27.82 +12 18 49.8 V K83
2018-08-24 20:41:15 C 22 24 28.68 +12 18 36.3 V K83
2018-08-25 22:31:47 C 22 26 16.17 +11 51 24.6 V G33
2018-08-25 22:32:55 C 22 26 16.23 +11 51 23.8 V G33
2018-08-25 22:33:34 C 22 26 16.27 +11 51 22.7 V G33
2018-08-25 22:34:28 C 22 26 16.33 +11 51 22.0 V G33
2018-08-25 22:35:33 C 22 26 16.41 +11 51 20.8 V G33
2018-08-25 22:36:12 C 22 26 16.43 +11 51 20.1 V G33
2018-08-25 22:36:55 C 22 26 16.48 +11 51 19.3 V G33
2018-08-29 20:25:53 C 22 32 25.03 +10 10 56.8 V Z52
2018-08-29 20:44:25 C 22 32 26.11 +10 10 37.1 V Z52
2018-08-30 11:49:21 C 22 33 19.70 +09 54 40.4 U T08
2018-08-30 12:03:49 C 22 33 20.45 +09 54 24.7 U T08
2018-08-30 12:18:15 C 22 33 21.20 +09 54 08.8 U T08
2018-08-30 12:32:34 C 22 33 21.95 +09 53 53.2 U T08
2018-08-31 11:37:18 C 22 34 45.63 +09 28 59.1 U T08