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
2017-05-12 22:56:16 C 12 53 44.28 +68 14 24.0 q Z80
2017-05-12 22:58:24 C 12 53 44.97 +68 14 23.6 q Z80
2017-05-12 23:00:31 C 12 53 45.64 +68 14 22.6 q Z80
2017-05-12 23:02:39 C 12 53 46.22 +68 14 21.7 q Z80
2017-05-12 23:04:47 C 12 53 46.93 +68 14 21.1 q Z80
2017-05-12 23:06:55 C 12 53 47.48 +68 14 20.2 q Z80
2017-05-12 23:09:02 C 12 53 48.28 +68 14 18.8 q Z80
2017-05-12 23:11:11 C 12 53 48.89 +68 14 18.0 q Z80
2017-05-13 03:44:17 C 12 55 17.02 +68 12 47.1 u H21
2017-05-13 03:46:14 C 12 55 17.59 +68 12 46.3 u H21
2017-05-13 03:48:12 C 12 55 18.18 +68 12 45.6 u H21
2017-05-13 03:50:09 C 12 55 18.77 +68 12 44.8 u H21
2017-05-13 03:52:07 C 12 55 19.36 +68 12 44.1 u H21
2017-05-13 03:54:05 C 12 55 19.94 +68 12 43.4 u H21
2017-05-13 03:56:02 C 12 55 20.54 +68 12 42.6 u H21
2017-05-13 03:58:00 C 12 55 21.13 +68 12 41.9 u H21
2017-05-13 03:59:57 C 12 55 21.75 +68 12 41.1 u H21
2017-05-13 04:01:55 C 12 55 22.31 +68 12 40.4 u H21
2017-05-13 04:03:53 C 12 55 22.92 +68 12 39.6 u H21
2017-05-13 04:05:50 C 12 55 23.50 +68 12 38.9 u H21
2017-05-13 04:07:47 C 12 55 24.09 +68 12 38.2 u H21
2017-05-13 04:09:44 C 12 55 24.69 +68 12 37.5 u H21
2017-05-13 04:11:41 C 12 55 25.26 +68 12 36.6 u H21
2017-05-13 04:13:38 C 12 55 25.84 +68 12 35.8 u H21
2017-05-13 04:15:36 C 12 55 26.42 +68 12 35.2 u H21
2017-05-13 04:16:57 C 12 55 26.86 +68 12 34.7 u H21
2017-05-13 21:03:40 C 13 00 47.93 +68 05 57.7 q 107
2017-05-13 21:12:12 C 13 00 50.46 +68 05 54.3 q 107
2017-05-13 21:19:41 C 13 00 52.72 +68 05 51.2 q 107
2017-05-14 04:45:16 C 13 03 13.08 +68 02 42.0 u H21
2017-05-14 04:49:12 C 13 03 14.26 +68 02 40.3 u H21
2017-05-14 04:51:09 C 13 03 14.84 +68 02 39.2 u H21
2017-05-14 04:53:07 C 13 03 15.43 +68 02 38.4 u H21
2017-05-14 04:55:05 C 13 03 16.02 +68 02 37.6 u H21
2017-05-14 04:57:02 C 13 03 16.61 +68 02 36.5 u H21
2017-05-14 04:59:00 C 13 03 17.21 +68 02 35.6 u H21
2017-05-14 05:00:57 C 13 03 17.80 +68 02 34.7 u H21
2017-05-14 05:02:55 C 13 03 18.39 +68 02 33.8 u H21
2017-05-14 05:04:53 C 13 03 18.99 +68 02 32.8 u H21
2017-05-14 05:06:50 C 13 03 19.57 +68 02 31.9 u H21
2017-05-14 05:08:48 C 13 03 20.16 +68 02 30.9 u H21
2017-05-14 05:10:34 C 13 03 20.69 +68 02 30.1 u H21
2017-05-14 09:07:09 C 13 04 35.79 +68 00 53.4 L T08
2017-05-14 09:22:22 C 13 04 40.30 +68 00 46.2 L T08
2017-05-14 09:53:32 C 13 04 49.52 +68 00 30.9 L T08
2017-05-14 10:02:33 C 13 04 52.22 +68 00 26.2 L T08
2017-05-14 22:23:21 C 13 08 47.59 +67 54 27.4 q Z80
2017-05-14 22:25:30 C 13 08 48.21 +67 54 25.9 q Z80
2017-05-14 22:27:39 C 13 08 48.86 +67 54 25.1 q Z80
2017-05-14 22:29:47 C 13 08 49.45 +67 54 23.9 q Z80