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
2017-03-15 04:52:38 C 09 05 29.54 +41 09 32.3 u H21
2017-03-15 04:54:35 C 09 05 29.50 +41 09 36.7 u H21
2017-03-15 04:56:32 C 09 05 29.48 +41 09 41.1 u H21
2017-03-15 04:58:30 C 09 05 29.45 +41 09 45.6 u H21
2017-03-15 05:00:50 C 09 05 29.41 +41 09 50.9 u H21
2017-03-15 08:37:39 C 09 05 28.51 +41 18 19.0 L T08
2017-03-15 08:59:15 C 09 05 28.16 +41 19 08.1 L T08
2017-03-15 09:19:09 C 09 05 27.81 +41 19 53.1 L T08
2017-03-15 09:33:55 C 09 05 27.57 +41 20 26.3 L T08
2017-03-15 19:22:49 C 09 05 26.37 +41 42 40.3 q K73
2017-03-15 19:30:40 C 09 05 26.28 +41 42 57.9 q K73
2017-03-15 19:35:47 C 09 05 26.19 +41 43 10.3 q K73
2017-03-15 19:40:48 C 09 05 26.11 +41 43 21.4 q K73
2017-03-15 19:45:50 C 09 05 26.05 +41 43 33.2 q K73
2017-03-15 19:50:57 C 09 05 26.01 +41 43 44.6 q K73
2017-03-15 19:55:57 C 09 05 25.87 +41 43 56.4 q K73
2017-03-15 20:58:42 C 09 05 25.62 +41 46 18.6 q 006
2017-03-15 21:03:11 C 09 05 25.56 +41 46 29.1 q 006
2017-03-15 21:07:42 C 09 05 25.48 +41 46 39.3 q 006
2017-03-15 21:12:11 C 09 05 25.43 +41 46 49.5 q 006
2017-03-15 21:16:42 C 09 05 25.38 +41 46 59.8 q 006
2017-03-17 04:52:07 C 09 05 22.07 +42 58 17.1 q 703
2017-03-17 05:06:03 C 09 05 21.87 +42 58 47.8 q 703
2017-03-17 05:13:03 C 09 05 21.80 +42 59 03.4 q 703
2017-03-17 12:43:34 C 09 05 22.40 +43 15 46.6 o 300
2017-03-17 12:45:53 C 09 05 22.36 +43 15 51.3 o 300
2017-03-17 12:50:30 C 09 05 22.34 +43 16 01.9 o 300
2017-03-17 12:52:48 C 09 05 22.34 +43 16 06.7 o 300
2017-03-17 12:55:06 C 09 05 22.32 +43 16 11.7 o 300
2017-03-17 19:07:18 C 09 05 24.08 +43 29 53.0 q K73
2017-03-17 19:12:23 C 09 05 24.05 +43 30 04.2 q K73
2017-03-17 19:17:28 C 09 05 24.07 +43 30 15.5 q K73
2017-03-17 19:22:33 C 09 05 23.98 +43 30 26.7 q K73
2017-03-18 08:54:23 C 09 05 25.73 +44 00 26.7 L T05
2017-03-18 09:08:01 C 09 05 25.65 +44 00 56.2 L T05
2017-03-18 09:15:01 C 09 05 25.60 +44 01 11.3 L T05
2017-03-18 09:46:30 C 09 05 25.24 +44 02 18.9 L T05
2017-03-19 05:17:49 C 09 05 33.23 +44 44 45.8 q H45
2017-03-19 05:19:02 C 09 05 33.23 +44 44 48.4 q H45
2017-03-19 05:20:52 C 09 05 33.24 +44 44 52.2 q H45
2017-03-19 05:22:39 C 09 05 33.24 +44 44 56.1 q H45
2017-03-19 07:35:58 C 09 05 35.53 +44 49 54.8 L T08
2017-03-19 07:56:00 C 09 05 35.47 +44 50 38.0 L T08
2017-03-19 08:16:27 C 09 05 35.37 +44 51 22.1 L T08
2017-03-19 08:34:39 C 09 05 35.32 +44 52 01.0 L T08
2017-03-20 04:43:12 C 09 05 47.47 +45 35 07.1 q H45
2017-03-20 04:44:51 C 09 05 47.48 +45 35 10.5 q H45
2017-03-20 04:46:32 C 09 05 47.48 +45 35 14.1 q H45
2017-03-20 04:48:02 C 09 05 47.48 +45 35 17.3 q H45
2017-03-20 04:49:28 C 09 05 47.48 +45 35 20.3 q H45