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
2017-06-12 03:40:46 C 15 47 13.58 +52 15 15.6 u H21
2017-06-12 03:42:44 C 15 47 13.87 +52 15 11.4 u H21
2017-06-12 03:44:42 C 15 47 14.14 +52 15 07.1 u H21
2017-06-12 03:46:39 C 15 47 14.42 +52 15 02.9 u H21
2017-06-12 03:48:37 C 15 47 14.68 +52 14 58.4 u H21
2017-06-12 03:50:34 C 15 47 14.97 +52 14 54.3 u H21
2017-06-12 03:52:32 C 15 47 15.25 +52 14 50.0 u H21
2017-06-12 03:54:30 C 15 47 15.53 +52 14 45.8 u H21
2017-06-12 03:56:27 C 15 47 15.80 +52 14 41.3 u H21
2017-06-12 03:58:25 C 15 47 16.08 +52 14 37.1 u H21
2017-06-12 04:00:23 C 15 47 16.36 +52 14 32.7 u H21
2017-06-12 04:02:20 C 15 47 16.63 +52 14 28.5 u H21
2017-06-12 04:04:18 C 15 47 16.92 +52 14 24.1 u H21
2017-06-12 04:06:15 C 15 47 17.20 +52 14 19.8 u H21
2017-06-12 09:27:14 C 15 48 05.43 +52 02 41.3 L T08
2017-06-12 10:08:01 C 15 48 11.07 +52 01 10.1 L T08
2017-06-12 10:11:32 C 15 48 11.58 +52 01 02.2 L T08
2017-06-12 10:41:38 C 15 48 15.76 +51 59 54.3 L T08
2017-06-12 22:24:29 C 15 50 03.04 +51 33 37.4 16.8 q Z43
2017-06-12 22:54:23 C 15 50 07.21 +51 32 30.4 16.3 q Z43
2017-06-12 23:22:56 C 15 50 11.23 +51 31 26.2 16.2 q Z43
2017-06-14 22:14:54 C 15 56 59.62 +49 44 04.4 16.0 q Z43
2017-06-14 22:43:52 C 15 57 03.42 +49 42 56.3 15.9 q Z43
2017-06-14 23:19:04 C 15 57 08.05 +49 41 33.4 15.6 q Z43
2017-06-15 02:52:54 C 15 57 38.73 +49 33 13.9 U W71
2017-06-15 02:55:15 C 15 57 39.05 +49 33 08.4 U W71
2017-06-15 03:01:50 C 15 57 39.90 +49 32 52.9 U W71
2017-06-15 04:41:47 C 15 57 53.67 +49 29 03.2 q H45
2017-06-15 04:42:45 C 15 57 53.79 +49 29 01.0 q H45
2017-06-15 04:43:34 C 15 57 53.90 +49 28 59.0 q H45
2017-06-15 04:44:52 C 15 57 54.06 +49 28 55.8 q H45
2017-06-15 04:45:47 C 15 57 54.18 +49 28 53.8 q H45
2017-06-15 04:46:42 C 15 57 54.30 +49 28 51.6 q H45
2017-06-15 07:33:18 C 15 58 16.54 +49 22 18.5 q 703
2017-06-15 07:41:26 C 15 58 17.58 +49 21 59.1 q 703
2017-06-15 07:49:32 C 15 58 18.62 +49 21 39.6 q 703
2017-06-15 07:57:38 C 15 58 19.68 +49 21 20.1 q 703
2017-06-16 07:36:52 C 16 01 34.91 +48 24 58.3 q 703
2017-06-16 07:44:36 C 16 01 35.94 +48 24 39.1 q 703
2017-06-16 07:52:20 C 16 01 36.90 +48 24 20.1 q 703
2017-06-16 08:00:02 C 16 01 37.88 +48 24 01.2 q 703
2017-06-17 06:41:51 C 16 04 40.02 +47 28 46.7 u H21
2017-06-17 06:42:47 C 16 04 40.13 +47 28 44.2 u H21
2017-06-17 06:44:51 C 16 04 40.39 +47 28 39.2 u H21
2017-06-17 06:46:55 C 16 04 40.66 +47 28 33.8 u H21
2017-06-17 06:48:59 C 16 04 40.91 +47 28 28.7 u H21
2017-06-17 06:51:03 C 16 04 41.13 +47 28 23.9 u H21
2017-06-17 06:53:07 C 16 04 41.39 +47 28 18.4 u H21
2017-06-17 06:55:11 C 16 04 41.64 +47 28 13.0 u H21
2017-06-17 06:57:15 C 16 04 41.94 +47 28 08.4 u H21