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
2018-12-05 00:12:36 S 00 25 19.30 -01 09 40.1 L C51
2018-12-05 03:05:45 C 00 25 29.64 -01 08 50.5 U I41
2018-12-05 04:03:00 C 00 25 32.91 -01 08 32.7 U I41
2018-12-05 06:29:26 S 00 25 41.61 -01 07 43.6 L C51
2018-12-05 06:29:36 S 00 25 41.55 -01 07 43.7 L C51
2018-12-05 09:37:55 S 00 25 52.80 -01 06 44.6 L C51
2018-12-05 11:12:10 S 00 25 58.35 -01 06 16.0 L C51
2018-12-05 12:46:25 S 00 26 03.81 -01 05 45.8 L C51
2018-12-05 14:20:40 S 00 26 09.44 -01 05 15.8 L C51
2018-12-05 15:54:56 S 00 26 15.10 -01 04 47.2 L C51
2018-12-05 17:29:11 S 00 26 20.66 -01 04 17.8 L C51
2018-12-05 19:03:14 S 00 26 26.20 -01 03 48.2 L C51
2018-12-05 20:37:29 S 00 26 31.75 -01 03 18.0 L C51
2018-12-05 23:46:00 S 00 26 42.98 -01 02 19.9 L C51
2018-12-06 02:53:45 S 00 26 54.32 -01 01 20.3 L C51
2018-12-06 06:02:49 S 00 27 05.38 -01 00 20.4 L C51
2018-12-06 06:02:59 S 00 27 05.38 -01 00 21.2 L C51
2018-12-06 09:11:19 S 00 27 16.64 -00 59 21.9 L C51
2018-12-10 07:33:43 C 00 32 55.51 -00 28 51.5 U T05
2018-12-10 07:46:05 C 00 32 56.23 -00 28 46.3 U T05
2018-12-10 07:54:48 C 00 32 56.67 -00 28 44.8 U T05
2018-12-10 07:57:36 C 00 32 56.79 -00 28 42.6 U T05
2018-12-10 08:07:10 C 00 32 57.31 -00 28 40.2 U T05
2018-12-10 08:09:51 C 00 32 57.59 -00 28 39.6 U T05
2018-12-14 02:38:15 C 00 38 27.31 +00 01 51.4 V G96
2018-12-14 02:46:20 C 00 38 27.81 +00 01 54.3 V G96
2018-12-14 02:54:24 C 00 38 28.28 +00 01 57.5 V G96
2018-12-14 03:02:30 C 00 38 28.78 +00 02 00.3 V G96
2019-01-01 05:07:48 C 01 05 40.149 +02 40 09.98 U F51
2019-01-01 05:40:34 C 01 05 42.201 +02 40 22.41 U F51
2019-01-01 05:56:53 C 01 05 43.219 +02 40 28.61 U F51
2019-01-19 01:52:05 C 01 33 39.52 +05 25 06.5 V G96
2019-01-19 02:00:09 C 01 33 40.05 +05 25 08.5 V G96
2019-01-19 02:08:13 C 01 33 40.56 +05 25 11.9 V G96
2019-01-19 02:16:16 C 01 33 41.07 +05 25 15.5 V G96
2019-01-21 05:22:23 C 01 37 04.946 +05 44 58.81 U F52
2019-01-21 05:28:01 C 01 37 05.321 +05 45 00.86 U F52
2019-01-21 05:33:34 C 01 37 05.690 +05 45 03.04 U F52
2019-01-21 05:39:08 C 01 37 06.053 +05 45 05.15 U F52
2019-01-25 05:24:39 C 01 43 29.931 +06 21 53.62 U F51
2019-01-25 05:36:29 C 01 43 30.711 +06 21 58.15 U F51
2019-10-26 14:51:25 C 08 24 51.315 +13 00 26.26 U F51
2019-10-26 14:59:12 C 08 24 51.480 +13 00 25.02 U F51
2019-10-26 15:06:56 C 08 24 51.618 +13 00 23.85 U F51
2019-12-04 11:51:06 C 08 28 31.064 +11 27 22.58 U F51
2019-12-04 12:26:33 C 08 28 30.511 +11 27 21.62 U F51
2019-12-04 12:44:15 C 08 28 30.216 +11 27 21.01 U F51
2019-12-20 08:39:46 C 08 19 46.20 +11 28 35.7 V G96
2019-12-20 08:47:46 C 08 19 45.90 +11 28 35.5 V G96
2019-12-20 08:55:46 C 08 19 45.66 +11 28 35.9 V G96