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
2017-03-12 21:04:52 C 09 06 03.12 +38 59 42.4 q K73
2017-03-12 21:07:58 C 09 06 03.04 +38 59 49.6 q K73
2017-03-12 21:11:04 C 09 06 02.98 +38 59 57.3 q K73
2017-03-12 21:14:09 C 09 06 02.91 +39 00 04.4 q K73
2017-03-12 21:21:24 C 09 06 02.74 +39 00 20.4 q K73
2017-03-12 21:24:31 C 09 06 02.66 +39 00 28.6 q K73
2017-03-12 21:27:36 C 09 06 02.54 +39 00 35.7 q K73
2017-03-12 21:30:42 C 09 06 02.53 +39 00 43.0 q K73
2017-03-12 21:33:46 C 09 06 02.51 +39 00 50.1 q K73
2017-03-12 21:36:52 C 09 06 02.45 +39 00 57.1 q K73
2017-03-12 21:39:57 C 09 06 02.36 +39 01 04.5 q K73
2017-03-12 21:46:09 C 09 06 02.21 +39 01 19.8 q K73
2017-03-12 22:17:24 C 09 06 01.52 +39 02 31.7 q K73
2017-03-12 22:21:33 C 09 06 01.47 +39 02 41.5 q K73
2017-03-12 22:24:40 C 09 06 01.37 +39 02 48.8 q K73
2017-03-12 22:27:46 C 09 06 01.33 +39 02 55.8 q K73
2017-03-12 22:30:50 C 09 06 01.24 +39 03 03.3 q K73
2017-03-12 22:33:56 C 09 06 01.18 +39 03 10.1 q K73
2017-03-12 22:37:01 C 09 06 01.08 +39 03 17.1 q K73
2017-03-13 01:53:17 C 09 05 58.08 +39 10 49.7 q Z80
2017-03-13 01:55:04 C 09 05 58.05 +39 10 53.3 q Z80
2017-03-13 01:56:51 C 09 05 58.01 +39 10 57.4 q Z80
2017-03-13 01:58:38 C 09 05 57.98 +39 11 01.8 q Z80
2017-03-13 02:00:25 C 09 05 57.96 +39 11 05.8 q Z80
2017-03-13 02:02:12 C 09 05 57.96 +39 11 10.1 q Z80
2017-03-13 02:03:59 C 09 05 57.91 +39 11 13.7 q Z80
2017-03-13 02:06:18 C 09 05 57.88 +39 11 18.7 q Z80
2017-03-13 19:12:36 C 09 05 48.10 +39 51 36.0 q K73
2017-03-13 19:19:24 C 09 05 48.03 +39 51 51.9 q K73
2017-03-13 19:24:30 C 09 05 47.91 +39 52 04.4 q K73
2017-03-13 19:29:36 C 09 05 47.82 +39 52 16.2 q K73
2017-03-13 20:40:41 C 09 05 46.94 +39 55 01.8 q 006
2017-03-13 20:45:11 C 09 05 46.86 +39 55 12.5 q 006
2017-03-13 20:51:12 C 09 05 46.72 +39 55 26.6 q 006
2017-03-13 20:57:11 C 09 05 46.62 +39 55 40.7 q 006
2017-03-13 21:01:41 C 09 05 46.52 +39 55 51.3 q 006
2017-03-14 21:40:26 C 09 05 33.24 +40 52 53.1 q J69
2017-03-14 21:51:18 C 09 05 33.09 +40 53 18.1 q J69
2017-03-14 22:02:11 C 09 05 32.92 +40 53 43.1 q J69
2017-03-15 04:31:05 C 09 05 29.86 +41 08 43.2 u H21
2017-03-15 04:33:02 C 09 05 29.83 +41 08 47.8 u H21
2017-03-15 04:35:00 C 09 05 29.80 +41 08 52.3 u H21
2017-03-15 04:36:58 C 09 05 29.77 +41 08 56.7 u H21
2017-03-15 04:38:55 C 09 05 29.74 +41 09 01.1 u H21
2017-03-15 04:40:53 C 09 05 29.71 +41 09 05.6 u H21
2017-03-15 04:42:50 C 09 05 29.68 +41 09 10.0 u H21
2017-03-15 04:44:48 C 09 05 29.65 +41 09 14.5 u H21
2017-03-15 04:46:45 C 09 05 29.62 +41 09 18.9 u H21
2017-03-15 04:48:43 C 09 05 29.59 +41 09 23.3 u H21
2017-03-15 04:50:41 C 09 05 29.57 +41 09 27.8 u H21