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
2017-05-31 06:43:42 C 14 54 54.595 +61 10 38.15 L F51
2017-05-31 07:03:25 C 14 54 58.610 +61 10 08.66 L F51
2017-05-31 07:22:15 C 14 55 02.429 +61 09 40.39 L F51
2017-05-31 07:23:10 C 14 55 02.614 +61 09 39.00 L F51
2017-05-31 22:12:15 C 14 58 13.69 +60 46 17.8 15.6 q Z43
2017-05-31 22:42:58 C 14 58 19.87 +60 45 30.0 15.9 q Z43
2017-05-31 23:13:44 C 14 58 26.10 +60 44 40.7 q Z43
2017-06-03 09:44:03 C 15 10 30.44 +59 08 05.3 L T08
2017-06-03 10:04:00 C 15 10 34.11 +59 07 30.3 L T08
2017-06-03 10:22:22 C 15 10 37.50 +59 06 57.8 L T08
2017-06-03 10:51:55 C 15 10 42.94 +59 06 05.3 L T08
2017-06-04 22:21:54 C 15 17 38.86 +58 03 07.8 15.9 q Z43
2017-06-04 23:13:50 C 15 17 48.21 +58 01 33.4 15.2 q Z43
2017-06-04 23:44:48 C 15 17 53.77 +58 00 36.7 q Z43
2017-06-05 07:20:33 C 15 19 19.27 +57 46 53.3 q 703
2017-06-05 07:36:08 C 15 19 22.02 +57 46 24.1 q 703
2017-06-05 07:44:46 C 15 19 23.52 +57 46 07.8 q 703
2017-06-05 07:53:23 C 15 19 25.05 +57 45 51.6 q 703
2017-06-06 09:41:53 C 15 24 11.91 +56 57 55.5 L T05
2017-06-06 10:10:03 C 15 24 16.62 +56 57 01.4 L T05
2017-06-06 10:26:49 C 15 24 19.43 +56 56 29.0 L T05
2017-06-06 10:58:47 C 15 24 24.81 +56 55 26.8 L T05
2017-06-07 04:43:14 C 15 27 37.26 +56 21 22.6 u H21
2017-06-07 04:45:12 C 15 27 37.56 +56 21 18.8 u H21
2017-06-07 04:47:10 C 15 27 37.89 +56 21 15.1 u H21
2017-06-07 04:49:07 C 15 27 38.22 +56 21 11.3 u H21
2017-06-07 04:51:05 C 15 27 38.54 +56 21 07.4 u H21
2017-06-07 04:53:02 C 15 27 38.87 +56 21 03.7 u H21
2017-06-07 04:55:00 C 15 27 39.20 +56 20 59.8 u H21
2017-06-07 04:56:57 C 15 27 39.51 +56 20 56.0 u H21
2017-06-07 04:58:54 C 15 27 39.84 +56 20 52.1 u H21
2017-06-07 05:00:51 C 15 27 40.15 +56 20 48.4 u H21
2017-06-07 05:02:36 C 15 27 40.44 +56 20 44.9 u H21
2017-06-07 06:25:16 C 15 27 54.27 +56 18 05.0 q H45
2017-06-07 06:26:27 C 15 27 54.46 +56 18 02.7 q H45
2017-06-07 06:27:41 C 15 27 54.67 +56 18 00.2 q H45
2017-06-07 06:28:26 C 15 27 54.79 +56 17 58.8 q H45
2017-06-07 06:29:30 C 15 27 54.98 +56 17 56.6 q H45
2017-06-07 06:30:46 C 15 27 55.19 +56 17 54.0 q H45
2017-06-07 10:16:01 C 15 28 35.11 +56 10 44.0 L T08
2017-06-07 10:33:28 C 15 28 37.93 +56 10 09.4 L T08
2017-06-07 11:00:47 C 15 28 42.39 +56 09 14.6 L T08
2017-06-07 11:27:46 C 15 28 46.82 +56 08 20.5 L T08
2017-06-08 02:23:25 C 15 31 26.37 +55 38 51.8 u H21
2017-06-08 02:25:23 C 15 31 26.67 +55 38 47.9 u H21
2017-06-08 02:27:21 C 15 31 27.00 +55 38 44.2 u H21
2017-06-08 02:29:18 C 15 31 27.31 +55 38 40.5 u H21
2017-06-08 02:31:16 C 15 31 27.63 +55 38 36.7 u H21
2017-06-08 02:33:13 C 15 31 27.95 +55 38 32.8 u H21
2017-06-08 02:35:11 C 15 31 28.26 +55 38 29.0 u H21