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
2017-06-08 02:37:09 C 15 31 28.57 +55 38 25.1 u H21
2017-06-08 02:39:06 C 15 31 28.90 +55 38 21.3 u H21
2017-06-08 02:41:04 C 15 31 29.23 +55 38 17.5 u H21
2017-06-08 02:43:02 C 15 31 29.54 +55 38 13.6 u H21
2017-06-08 02:44:59 C 15 31 29.85 +55 38 09.8 u H21
2017-06-08 02:46:57 C 15 31 30.17 +55 38 05.9 u H21
2017-06-08 02:48:54 C 15 31 30.47 +55 38 02.1 u H21
2017-06-08 02:50:52 C 15 31 30.78 +55 37 58.2 u H21
2017-06-08 02:54:12 C 15 31 31.33 +55 37 51.8 u H21
2017-06-08 06:59:24 C 15 32 10.81 +55 29 43.0 q H45
2017-06-08 07:00:39 C 15 32 11.01 +55 29 40.7 q H45
2017-06-08 07:01:45 C 15 32 11.19 +55 29 38.2 q H45
2017-06-08 07:03:13 C 15 32 11.42 +55 29 35.4 q H45
2017-06-08 07:04:43 C 15 32 11.66 +55 29 32.3 q H45
2017-06-08 07:05:56 C 15 32 11.86 +55 29 29.8 q H45
2017-06-08 10:33:01 C 15 32 47.62 +55 22 44.5 L T08
2017-06-08 10:49:35 C 15 32 50.24 +55 22 10.9 L T08
2017-06-08 11:15:50 C 15 32 54.40 +55 21 16.6 L T08
2017-06-08 11:44:11 C 15 32 58.91 +55 20 17.8 L T08
2017-06-08 19:47:25 C 15 34 24.47 +55 03 56.9 q 160
2017-06-08 19:49:18 C 15 34 24.76 +55 03 53.1 q 160
2017-06-08 19:51:10 C 15 34 25.05 +55 03 49.6 q 160
2017-06-09 02:31:28 C 15 35 32.35 +54 50 18.4 u H21
2017-06-09 02:33:26 C 15 35 32.66 +54 50 14.7 u H21
2017-06-09 02:35:23 C 15 35 32.96 +54 50 10.5 u H21
2017-06-09 02:37:21 C 15 35 33.27 +54 50 06.7 u H21
2017-06-09 02:39:19 C 15 35 33.58 +54 50 02.8 u H21
2017-06-09 02:41:16 C 15 35 33.87 +54 49 58.9 u H21
2017-06-09 02:43:14 C 15 35 34.20 +54 49 54.7 u H21
2017-06-09 02:45:11 C 15 35 34.50 +54 49 50.9 u H21
2017-06-09 02:47:09 C 15 35 34.82 +54 49 47.0 u H21
2017-06-09 02:49:07 C 15 35 35.12 +54 49 43.0 u H21
2017-06-09 02:51:04 C 15 35 35.41 +54 49 39.1 u H21
2017-06-09 02:53:02 C 15 35 35.73 +54 49 35.1 u H21
2017-06-09 02:55:00 C 15 35 36.03 +54 49 31.2 u H21
2017-06-09 02:56:57 C 15 35 36.35 +54 49 27.2 u H21
2017-06-09 02:58:43 C 15 35 36.63 +54 49 23.8 u H21
2017-06-09 03:00:29 C 15 35 36.88 +54 49 20.2 u H21
2017-06-10 02:28:12 C 15 39 29.27 +54 00 50.6 u H21
2017-06-10 02:30:09 C 15 39 29.55 +54 00 46.5 u H21
2017-06-10 02:32:07 C 15 39 29.84 +54 00 42.4 u H21
2017-06-10 02:34:05 C 15 39 30.15 +54 00 38.4 u H21
2017-06-10 02:36:02 C 15 39 30.42 +54 00 34.5 u H21
2017-06-10 02:38:00 C 15 39 30.74 +54 00 30.4 u H21
2017-06-10 02:39:58 C 15 39 31.05 +54 00 26.3 u H21
2017-06-10 02:41:55 C 15 39 31.33 +54 00 22.2 u H21
2017-06-10 02:43:53 C 15 39 31.61 +54 00 18.1 u H21
2017-06-10 02:45:50 C 15 39 31.92 +54 00 14.1 u H21
2017-06-10 02:47:48 C 15 39 32.24 +54 00 10.2 u H21
2017-06-10 02:49:46 C 15 39 32.53 +54 00 06.1 u H21