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
2017-04-08 06:24:30 C 09 33 01.68 +59 10 43.4 q H45
2017-04-08 06:25:32 C 09 33 01.79 +59 10 44.8 q H45
2017-04-08 06:26:48 C 09 33 01.91 +59 10 46.5 q H45
2017-04-08 06:28:09 C 09 33 02.06 +59 10 48.4 q H45
2017-04-08 07:10:16 C 09 33 09.35 +59 12 05.3 L T08
2017-04-08 07:30:38 C 09 33 11.43 +59 12 33.9 L T08
2017-04-08 07:50:03 C 09 33 13.35 +59 13 01.6 L T08
2017-04-08 08:08:54 C 09 33 15.26 +59 13 28.1 L T08
2017-04-08 20:23:02 C 09 34 43.74 +59 30 39.3 q Z52
2017-04-08 21:04:39 C 09 34 48.32 +59 31 38.0 q Z52
2017-04-08 21:45:28 C 09 34 52.82 +59 32 35.0 q Z52
2017-04-08 23:04:54 C 09 35 01.58 +59 34 25.2 q Z80
2017-04-08 23:07:04 C 09 35 01.90 +59 34 27.8 q Z80
2017-04-08 23:09:14 C 09 35 02.16 +59 34 31.0 q Z80
2017-04-08 23:11:24 C 09 35 02.39 +59 34 33.9 q Z80
2017-04-08 23:13:33 C 09 35 02.65 +59 34 37.0 q Z80
2017-04-08 23:15:40 C 09 35 02.88 +59 34 39.8 q Z80
2017-04-08 23:17:48 C 09 35 03.12 +59 34 42.7 q Z80
2017-04-08 23:19:55 C 09 35 03.34 +59 34 45.5 q Z80
2017-04-08 23:22:02 C 09 35 03.59 +59 34 48.2 q Z80
2017-04-08 23:24:10 C 09 35 03.83 +59 34 51.2 q Z80
2017-04-09 02:40:53 C 09 35 29.22 +59 39 38.7 u H21
2017-04-09 02:43:08 C 09 35 29.48 +59 39 42.0 u H21
2017-04-09 02:46:05 C 09 35 29.79 +59 39 45.8 u H21
2017-04-09 02:49:01 C 09 35 30.10 +59 39 50.0 u H21
2017-04-09 02:51:57 C 09 35 30.42 +59 39 54.3 u H21
2017-04-09 02:54:54 C 09 35 30.75 +59 39 58.3 u H21
2017-04-09 02:57:39 C 09 35 31.02 +59 40 02.2 u H21
2017-04-09 06:52:14 C 09 36 00.36 +59 45 40.6 L T08
2017-04-09 07:14:44 C 09 36 02.81 +59 46 11.8 L T08
2017-04-09 07:35:59 C 09 36 05.01 +59 46 40.7 L T08
2017-04-09 07:55:23 C 09 36 07.12 +59 47 07.5 L T08
2017-04-09 19:10:36 C 09 37 33.26 +60 02 35.6 o 107
2017-04-09 19:14:13 C 09 37 33.66 +60 02 40.5 o 107
2017-04-09 19:18:42 C 09 37 34.18 +60 02 46.6 o 107
2017-04-09 19:24:06 C 09 37 34.81 +60 02 54.3 o 107
2017-04-11 20:05:19 C 09 44 07.35 +61 08 14.6 q Z52
2017-04-11 20:35:07 C 09 44 11.26 +61 08 53.5 q Z52
2017-04-11 21:05:40 C 09 44 15.26 +61 09 33.2 q Z52
2017-04-12 02:43:31 C 09 45 03.59 +61 16 59.1 u H21
2017-04-12 02:45:29 C 09 45 03.85 +61 17 01.8 u H21
2017-04-12 02:47:26 C 09 45 04.10 +61 17 04.2 u H21
2017-04-12 02:49:24 C 09 45 04.37 +61 17 06.7 u H21
2017-04-12 02:51:22 C 09 45 04.61 +61 17 09.2 u H21
2017-04-12 02:53:19 C 09 45 04.86 +61 17 11.8 u H21
2017-04-12 02:55:17 C 09 45 05.11 +61 17 14.3 u H21
2017-04-12 02:57:14 C 09 45 05.37 +61 17 16.7 u H21
2017-04-12 02:59:11 C 09 45 05.62 +61 17 19.3 u H21
2017-04-12 03:01:08 C 09 45 05.87 +61 17 21.7 u H21
2017-04-12 03:03:05 C 09 45 06.11 +61 17 24.2 u H21