11398 (1998 YP11)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3890925931 ± 1.26e-02
Semi-major axis (a)1.7209976315 AU ± 6.54e-03
Inclination (i)15.02091781° ± 1.07e+00
Long. of Asc. Node (Ω)144.71297369° ± 5.91e+00
Arg. of Perihelion (ω)74.76867270° ± 6.17e+00
Mean Anomaly (M)281.68217657° ± 4.35e+00
Mean Motion (n)0.4365579156°/day ± 2.49e-03
Perihelion dist (q)1.05137020 AU ± 2.20e-02
Aphelion dist (Q)2.39062506 AU ± 2.35e-02
Orbital Period2.25772171 yr ± 1.29e-02
NGA Modelr2
A24.42027461e-07 AU/d²
Physical Parameters
H (abs. magnitude)16.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.212″
Uncertainty0
Orbit TypeAmor
MOID0.203136 AU
Observations Used3456
Gaia Obs Used159
Oppositions19
Arc Total1983-2026
First Observation Used1983-01-05
Last Observation Used2026-01-12
Observations (3624)
Date Type RA Dec Mag Band Observatory
2017-03-20 04:50:57 C 09 05 47.48 +45 35 23.4 q H45
2017-03-20 19:49:51 C 09 06 00.59 +46 07 06.3 q 107
2017-03-20 19:54:15 C 09 06 00.58 +46 07 15.2 q 107
2017-03-20 19:59:24 C 09 06 00.58 +46 07 25.7 q 107
2017-03-21 05:31:25 C 09 06 07.71 +46 27 31.4 q H45
2017-03-21 05:32:45 C 09 06 07.71 +46 27 34.1 q H45
2017-03-21 05:34:45 C 09 06 07.72 +46 27 38.2 q H45
2017-03-21 05:35:54 C 09 06 07.74 +46 27 40.6 q H45
2017-03-21 05:37:05 C 09 06 07.74 +46 27 43.1 q H45
2017-03-21 05:38:14 C 09 06 07.75 +46 27 45.3 q H45
2017-03-21 18:54:48 C 09 06 23.57 +46 55 26.0 q K73
2017-03-21 18:58:48 C 09 06 23.62 +46 55 34.5 q K73
2017-03-21 19:01:54 C 09 06 23.63 +46 55 41.3 q K73
2017-03-21 19:04:59 C 09 06 23.54 +46 55 47.7 q K73
2017-03-21 19:08:04 C 09 06 23.72 +46 55 53.6 q K73
2017-03-21 19:11:09 C 09 06 23.72 +46 56 00.3 q K73
2017-03-21 19:14:13 C 09 06 23.69 +46 56 07.0 q K73
2017-03-21 20:21:53 C 09 06 24.37 +46 58 27.1 q K73
2017-03-22 05:32:15 C 09 06 34.53 +47 17 28.5 q 703
2017-03-22 05:41:00 C 09 06 34.62 +47 17 46.4 q 703
2017-03-22 05:54:02 C 09 06 34.73 +47 18 12.7 q 703
2017-03-22 06:02:31 C 09 06 34.78 +47 18 29.4 q 703
2017-03-22 08:49:39 C 09 06 38.32 +47 24 20.0 L T05
2017-03-22 09:04:41 C 09 06 38.48 +47 24 50.2 L T05
2017-03-22 09:30:16 C 09 06 38.72 +47 25 41.8 L T05
2017-03-22 09:40:42 C 09 06 38.82 +47 26 02.8 L T05
2017-03-22 20:05:04 C 09 06 53.79 +47 47 09.0 L04
2017-03-22 20:07:22 C 09 06 53.82 +47 47 13.6 L04
2017-03-22 20:10:47 C 09 06 53.87 +47 47 20.6 L04
2017-03-22 20:12:31 C 09 06 53.90 +47 47 24.1 L04
2017-03-23 19:41:47 C 09 07 29.88 +48 34 52.8 q K73
2017-03-23 19:46:31 C 09 07 29.98 +48 35 02.4 q K73
2017-03-23 19:51:38 C 09 07 30.09 +48 35 12.7 q K73
2017-03-23 19:56:46 C 09 07 30.12 +48 35 23.0 q K73
2017-03-23 19:59:58 C 09 07 30.19 +48 35 29.6 q K73
2017-03-23 20:05:35 C 09 07 30.33 +48 35 40.6 q K73
2017-03-23 20:10:43 C 09 07 30.38 +48 35 50.9 q K73
2017-03-23 20:15:17 C 09 07 30.46 +48 36 00.0 q K73
2017-03-24 06:06:34 C 09 07 45.68 +48 55 36.0 q H45
2017-03-24 06:07:52 C 09 07 45.71 +48 55 38.4 q H45
2017-03-24 06:08:43 C 09 07 45.72 +48 55 39.9 q H45
2017-03-24 06:09:55 C 09 07 45.75 +48 55 42.4 q H45
2017-03-24 06:10:57 C 09 07 45.77 +48 55 44.4 q H45
2017-03-24 06:11:50 C 09 07 45.78 +48 55 45.9 q H45
2017-03-24 07:34:58 C 09 07 49.94 +48 58 44.3 L T08
2017-03-24 07:54:59 C 09 07 50.26 +48 59 24.0 L T08
2017-03-24 08:14:13 C 09 07 50.59 +49 00 01.7 L T08
2017-03-24 08:33:31 C 09 07 50.93 +49 00 39.5 L T08
2017-03-25 05:16:45 C 09 08 30.75 +49 41 16.1 q 703
2017-03-25 05:33:49 C 09 08 31.19 +49 41 50.2 q 703