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
2019-12-20 09:03:46 C 08 19 45.40 +11 28 36.7 V G96
2019-12-28 10:34:36 C 08 13 09.316 +11 39 29.26 U F51
2019-12-28 10:51:55 C 08 13 08.649 +11 39 30.65 U F51
2019-12-28 11:09:10 C 08 13 07.987 +11 39 32.00 U F51
2019-12-28 11:26:27 C 08 13 07.327 +11 39 33.18 U F51
2020-01-01 13:22:21 C 08 09 19.504 +11 47 32.85 U F51
2020-01-01 13:26:08 C 08 09 19.351 +11 47 33.16 U F51
2020-01-01 13:41:44 C 08 09 18.718 +11 47 34.61 U F51
2020-01-01 13:45:35 C 08 09 18.569 +11 47 34.73 U F51
2020-01-01 14:01:19 C 08 09 17.915 +11 47 36.25 U F51
2020-01-01 14:05:09 C 08 09 17.750 +11 47 36.62 U F51
2020-01-01 14:20:49 C 08 09 17.102 +11 47 38.04 U F51
2020-01-01 14:24:43 C 08 09 16.949 +11 47 38.35 U F51
2020-01-27 05:47:12 C 07 42 20.61 +13 05 46.8 V G96
2020-01-27 05:53:49 C 07 42 20.26 +13 05 48.6 V G96
2020-01-27 06:00:16 C 07 42 20.06 +13 05 49.6 V G96
2020-01-27 06:06:52 C 07 42 19.72 +13 05 50.0 V G96
2020-02-01 04:11:53 C 07 37 21.95 +13 23 54.9 V G96
2020-02-01 04:19:52 C 07 37 21.62 +13 23 55.9 V G96
2020-02-01 04:27:50 C 07 37 21.24 +13 23 56.8 V G96
2020-02-01 04:35:48 C 07 37 21.05 +13 23 57.7 V G96
2021-03-05 09:32:05 C 12 43 35.94 -07 00 15.1 V 703
2021-03-05 09:40:45 C 12 43 35.59 -07 00 13.0 V 703
2021-03-05 09:49:26 C 12 43 35.42 -07 00 11.4 V 703
2021-03-05 09:58:07 C 12 43 35.18 -07 00 08.3 V 703
2021-03-11 08:48:49 C 12 39 06.32 -06 19 42.8 V 703
2021-03-11 08:56:23 C 12 39 06.10 -06 19 40.6 V 703
2021-03-11 09:03:57 C 12 39 05.78 -06 19 38.3 V 703
2021-03-11 09:11:31 C 12 39 05.56 -06 19 36.4 V 703
2021-03-13 18:00:48 C 12 37 01.60 -06 01 05.0 q D29
2021-03-13 18:21:10 C 12 37 00.79 -06 00 58.2 q D29
2021-03-13 18:41:31 C 12 37 00.00 -06 00 51.2 q D29
2021-03-15 07:31:37 C 12 35 35.11 -05 48 07.3 o 691
2021-03-15 07:39:20 C 12 35 34.79 -05 48 04.6 o 691
2021-03-15 07:47:02 C 12 35 34.47 -05 48 01.9 o 691
2021-03-19 11:12:51 C 12 31 27.68 -05 11 03.3 V T08
2021-03-19 11:17:29 C 12 31 27.46 -05 11 01.4 V T08
2021-03-19 11:28:09 C 12 31 26.94 -05 10 57.0 V T08
2021-03-19 12:18:18 C 12 31 24.70 -05 10 37.6 V T08
2021-03-20 08:52:12 C 12 30 30.88 -05 02 33.0 V V00
2021-03-20 08:53:00 C 12 30 30.84 -05 02 32.9 V V00
2021-03-20 08:59:19 C 12 30 30.55 -05 02 30.2 V V00
2021-03-20 09:00:05 C 12 30 30.52 -05 02 29.8 V V00
2021-03-20 09:06:24 C 12 30 30.23 -05 02 27.3 V V00
2021-03-20 09:07:11 C 12 30 30.19 -05 02 27.2 V V00
2021-03-20 09:13:29 C 12 30 29.90 -05 02 24.5 V V00
2021-03-20 09:14:16 C 12 30 29.87 -05 02 24.4 V V00
2021-03-21 16:28:36 C 12 29 06.51 -04 49 50.0 q D29
2021-03-21 16:48:58 C 12 29 05.59 -04 49 41.8 q D29
2021-03-21 17:09:20 C 12 29 04.59 -04 49 33.4 q D29