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
2018-06-27 22:28:36 C 19 49 29.54 +11 18 13.2 q C95
2018-06-28 07:53:30 C 19 50 33.13 +11 29 31.3 u 719
2018-06-28 08:13:36 C 19 50 35.28 +11 29 57.0 u 719
2018-06-28 22:10:05 C 19 52 12.14 +11 46 11.4 U Z52
2018-06-28 22:44:32 C 19 52 15.96 +11 46 52.4 U Z52
2018-06-29 10:59:29 C 19 53 40.17 +12 01 31.7 U T05
2018-06-29 11:13:37 C 19 53 41.64 +12 01 48.2 U T05
2018-06-29 11:28:07 C 19 53 43.18 +12 02 04.9 U T05
2018-06-29 22:04:22 C 19 54 57.63 +12 14 03.2 U G34
2018-06-29 22:08:34 C 19 54 58.08 +12 14 08.0 U G34
2018-06-29 22:12:46 C 19 54 58.54 +12 14 13.0 U G34
2018-06-29 23:13:26 C 19 55 05.35 +12 15 27.4 q 160
2018-06-29 23:16:43 C 19 55 05.71 +12 15 31.4 q 160
2018-06-29 23:19:46 C 19 55 06.04 +12 15 34.8 q 160
2018-06-30 12:57:02 C 19 56 39.81 +12 31 26.5 U T05
2018-06-30 12:58:21 C 19 56 39.95 +12 31 28.0 U T05
2018-06-30 13:18:10 C 19 56 42.06 +12 31 50.3 U T05
2018-06-30 13:20:49 C 19 56 42.35 +12 31 53.4 U T05
2018-06-30 13:27:24 C 19 56 43.05 +12 32 00.7 U T05
2018-06-30 13:31:21 C 19 56 43.48 +12 32 05.2 U T05
2018-06-30 13:47:57 C 19 56 45.25 +12 32 23.8 U T05
2018-06-30 23:50:03 C 19 57 57.35 +12 43 33.4 q 160
2018-06-30 23:53:21 C 19 57 57.71 +12 43 37.1 q 160
2018-06-30 23:56:38 C 19 57 58.07 +12 43 40.9 q 160
2018-07-01 06:43:12 C 19 58 46.30 +12 51 20.4 463
2018-07-01 07:07:47 C 19 58 48.99 +12 51 48.3 463
2018-07-01 07:24:08 C 19 58 50.77 +12 52 07.0 463
2018-07-01 22:12:36 C 20 00 36.15 +13 08 34.0 q 160
2018-07-01 22:15:42 C 20 00 36.50 +13 08 37.5 q 160
2018-07-01 22:18:52 C 20 00 36.85 +13 08 41.1 q 160
2018-07-02 22:22:25 C 20 03 28.30 +13 34 54.5 U Z52
2018-07-02 23:49:06 C 20 03 38.12 +13 36 29.2 U Z52
2018-07-03 00:15:25 C 20 03 40.97 +13 37 03.3 q C95
2018-07-03 00:16:22 C 20 03 41.08 +13 37 04.2 q C95
2018-07-03 00:17:19 C 20 03 41.20 +13 37 05.1 q C95
2018-07-03 00:18:16 C 20 03 41.32 +13 37 05.7 q C95
2018-07-03 00:19:13 C 20 03 41.40 +13 37 07.0 q C95
2018-07-03 00:20:10 C 20 03 41.50 +13 37 08.3 q C95
2018-07-03 00:35:26 C 20 03 43.34 +13 37 19.6 U Z52
2018-07-03 01:21:48 C 20 03 48.55 +13 38 09.7 U Z52
2018-07-03 22:22:42 C 20 06 20.74 +14 00 30.8 U Z52
2018-07-03 23:12:36 C 20 06 26.47 +14 01 23.9 U Z52
2018-07-04 01:20:04 C 20 06 40.92 +14 03 38.8 U Z52
2018-07-04 12:56:02 C 20 08 04.02 +14 16 03.9 U T05
2018-07-04 13:04:45 C 20 08 04.98 +14 16 12.8 U T05
2018-07-04 13:49:33 C 20 08 09.94 +14 16 58.3 U T05
2018-07-04 22:14:55 C 20 09 13.61 +14 25 17.2 U Z52
2018-07-04 22:49:41 C 20 09 17.66 +14 25 53.4 U Z52
2018-07-04 23:29:59 C 20 09 22.27 +14 26 34.8 U Z52
2018-07-05 00:03:36 C 20 09 26.15 +14 27 09.6 U Z52