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
2017-06-10 02:51:43 C 15 39 32.83 +54 00 01.9 u H21
2017-06-10 02:53:41 C 15 39 33.11 +53 59 58.1 u H21
2017-06-10 02:55:38 C 15 39 33.42 +53 59 54.1 u H21
2017-06-10 02:57:36 C 15 39 33.70 +53 59 50.0 u H21
2017-06-10 02:59:34 C 15 39 34.02 +53 59 46.1 u H21
2017-06-10 03:02:30 C 15 39 34.46 +53 59 39.8 u H21
2017-06-10 04:32:05 C 15 39 47.67 +53 56 36.0 q W33
2017-06-10 04:44:53 C 15 39 49.61 +53 56 08.6 q W33
2017-06-10 09:24:22 C 15 40 34.86 +53 46 27.6 L T05
2017-06-10 09:37:58 C 15 40 36.86 +53 45 58.6 L T05
2017-06-10 10:11:35 C 15 40 41.82 +53 44 46.9 L T05
2017-06-10 10:31:20 C 15 40 44.76 +53 44 04.3 L T05
2017-06-10 21:49:38 C 15 42 34.87 +53 19 53.0 17.2 q Z43
2017-06-10 22:34:12 C 15 42 41.49 +53 18 17.7 16.2 q Z43
2017-06-10 23:03:19 C 15 42 45.81 +53 17 15.4 16.1 q Z43
2017-06-11 02:47:30 C 15 43 22.29 +53 09 21.9 q W34
2017-06-11 02:56:49 C 15 43 23.65 +53 09 02.2 q W34
2017-06-11 03:06:20 C 15 43 25.03 +53 08 42.0 q W34
2017-06-11 03:19:39 C 15 43 26.97 +53 08 13.6 q W34
2017-06-11 03:56:35 C 15 43 32.59 +53 06 52.0 u H21
2017-06-11 03:58:32 C 15 43 32.87 +53 06 47.9 u H21
2017-06-11 04:00:30 C 15 43 33.16 +53 06 43.6 u H21
2017-06-11 04:02:28 C 15 43 33.46 +53 06 39.4 u H21
2017-06-11 04:04:25 C 15 43 33.74 +53 06 35.2 u H21
2017-06-11 04:06:23 C 15 43 34.03 +53 06 31.0 u H21
2017-06-11 04:08:21 C 15 43 34.30 +53 06 26.8 u H21
2017-06-11 04:10:19 C 15 43 34.60 +53 06 22.7 u H21
2017-06-11 04:12:16 C 15 43 34.90 +53 06 18.4 u H21
2017-06-11 04:14:14 C 15 43 35.18 +53 06 14.1 u H21
2017-06-11 04:16:11 C 15 43 35.46 +53 06 10.0 u H21
2017-06-11 04:18:09 C 15 43 35.73 +53 06 05.8 u H21
2017-06-11 04:20:07 C 15 43 36.03 +53 06 01.6 u H21
2017-06-11 04:22:04 C 15 43 36.31 +53 05 57.5 u H21
2017-06-11 04:24:02 C 15 43 36.58 +53 05 53.2 u H21
2017-06-11 04:27:10 C 15 43 37.06 +53 05 46.4 u H21
2017-06-11 20:01:18 C 15 46 03.68 +52 31 59.3 q 160
2017-06-11 20:03:32 C 15 46 04.00 +52 31 54.3 q 160
2017-06-11 20:05:43 C 15 46 04.31 +52 31 49.7 q 160
2017-06-11 21:47:07 C 15 46 19.38 +52 28 06.9 15.9 q Z43
2017-06-11 22:12:41 C 15 46 23.00 +52 27 09.4 q Z80
2017-06-11 22:14:08 C 15 46 23.22 +52 27 06.4 q Z80
2017-06-11 22:14:34 C 15 46 23.36 +52 27 07.1 15.5 q Z43
2017-06-11 22:15:34 C 15 46 23.42 +52 27 02.8 q Z80
2017-06-11 22:18:08 C 15 46 23.79 +52 26 57.6 q Z80
2017-06-11 22:22:57 C 15 46 24.47 +52 26 47.0 q Z80
2017-06-11 22:24:23 C 15 46 24.69 +52 26 43.9 q Z80
2017-06-11 22:25:49 C 15 46 24.91 +52 26 40.7 q Z80
2017-06-11 22:27:37 C 15 46 25.15 +52 26 36.8 q Z80
2017-06-11 22:43:40 C 15 46 27.56 +52 26 03.7 15.7 q Z43
2017-06-12 03:38:49 C 15 47 13.30 +52 15 19.9 u H21