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
2017-06-17 06:59:19 C 16 04 42.16 +47 28 02.9 u H21
2017-06-17 07:02:00 C 16 04 42.51 +47 27 56.0 u H21
2017-06-18 21:21:02 C 16 09 41.19 +45 52 31.3 16.1 q K78
2017-06-18 22:13:03 C 16 09 47.70 +45 50 18.1 17.3 q Z43
2017-06-18 22:23:11 C 16 09 48.49 +45 49 53.4 16.2 q K78
2017-06-18 22:44:20 C 16 09 51.39 +45 48 58.7 14.8 q Z43
2017-06-19 05:06:11 C 16 10 39.95 +45 32 58.2 q G96
2017-06-19 05:12:20 C 16 10 40.65 +45 32 42.7 q G96
2017-06-19 05:21:40 C 16 10 41.73 +45 32 19.0 q G96
2017-06-19 05:27:54 C 16 10 42.45 +45 32 03.3 q G96
2017-06-20 05:22:46 C 16 13 39.21 +44 30 42.0 q H45
2017-06-20 05:24:00 C 16 13 39.35 +44 30 38.8 q H45
2017-06-20 05:25:10 C 16 13 39.48 +44 30 35.7 q H45
2017-06-20 05:26:01 C 16 13 39.58 +44 30 33.5 q H45
2017-06-20 05:27:00 C 16 13 39.69 +44 30 30.9 q H45
2017-06-20 05:27:54 C 16 13 39.78 +44 30 28.6 q H45
2017-06-21 01:10:59 C 16 16 04.35 +43 39 03.2 q I15
2017-06-21 01:13:12 C 16 16 04.58 +43 38 57.4 q I15
2017-06-21 01:15:23 C 16 16 04.83 +43 38 52.0 q I15
2017-06-21 09:55:13 C 16 17 04.95 +43 16 17.7 L T08
2017-06-21 10:11:32 C 16 17 06.71 +43 15 34.2 L T08
2017-06-21 10:21:38 C 16 17 07.80 +43 15 07.2 L T08
2017-06-21 10:40:46 C 16 17 09.87 +43 14 16.0 L T08
2017-06-21 21:56:51 C 16 18 31.03 +42 44 14.2 17.8 q Z43
2017-06-21 22:29:24 C 16 18 34.62 +42 42 48.2 16.4 q Z43
2017-06-21 22:58:49 C 16 18 37.80 +42 41 30.4 15.3 q Z43
2017-06-23 10:10:18 C 16 22 39.90 +41 07 10.3 L T05
2017-06-23 10:20:55 C 16 22 41.00 +41 06 41.1 L T05
2017-06-23 10:23:07 C 16 22 41.22 +41 06 35.1 L T05
2017-06-23 10:39:44 C 16 22 42.94 +41 05 49.4 L T05
2017-06-23 10:41:53 C 16 22 43.20 +41 05 43.0 L T05
2017-06-23 10:47:34 C 16 22 43.77 +41 05 27.6 L T05
2017-06-24 07:23:05 C 16 25 02.32 +40 09 09.4 q 703
2017-06-24 07:31:41 C 16 25 03.19 +40 08 45.6 q 703
2017-06-24 07:40:13 C 16 25 04.07 +40 08 21.7 q 703
2017-06-24 07:48:44 C 16 25 04.94 +40 07 58.0 q 703
2017-06-25 01:12:25 C 16 27 01.72 +39 19 54.8 q I15
2017-06-25 01:14:39 C 16 27 01.95 +39 19 48.6 q I15
2017-06-25 01:16:52 C 16 27 02.16 +39 19 42.6 q I15
2017-06-25 09:54:06 C 16 27 56.69 +38 55 58.2 L T08
2017-06-25 10:13:18 C 16 27 58.57 +38 55 04.2 L T08
2017-06-25 10:21:18 C 16 27 59.37 +38 54 41.7 L T08
2017-06-25 10:43:15 C 16 28 01.53 +38 53 39.7 L T08
2017-06-26 08:01:38 C 16 30 20.134 +37 54 05.26 L F51
2017-06-26 08:19:52 C 16 30 21.875 +37 53 14.12 L F51
2017-06-26 08:38:07 C 16 30 23.626 +37 52 22.95 L F51
2017-06-26 08:56:22 C 16 30 25.369 +37 51 31.59 L F51
2017-06-26 20:52:35 C 16 31 41.71 +37 17 41.2 15.7 q 006
2017-06-26 20:55:57 C 16 31 42.02 +37 17 31.0 15.5 q 006
2017-06-26 20:59:17 C 16 31 42.34 +37 17 22.3 15.5 q 006