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
2008-07-08 23:51:18 C 19 15 25.62 +17 45 20.2 c J27
2008-07-09 21:23:13 C 19 15 04.05 +16 52 26.2 r B38
2008-07-09 21:29:46 C 19 15 03.92 +16 52 10.3 r B38
2008-07-09 21:35:47 C 19 15 03.78 +16 51 55.7 r B38
2008-07-09 21:40:53 C 19 15 03.68 +16 51 43.1 r B38
2008-07-09 22:44:58 C 19 15 02.46 +16 49 07.1 r B19
2008-07-09 22:46:39 C 19 15 02.43 +16 49 02.9 r B19
2008-07-09 22:48:44 C 19 15 02.37 +16 48 57.7 r B19
2008-07-10 20:27:20 C 19 14 41.38 +15 55 43.3 r 151
2008-07-10 20:27:58 C 19 14 41.37 +15 55 41.7 r 151
2008-07-10 20:28:36 C 19 14 41.36 +15 55 40.2 r 151
2008-07-10 20:29:14 C 19 14 41.34 +15 55 38.6 r 151
2008-07-10 20:29:52 C 19 14 41.33 +15 55 37.1 r 151
2008-07-10 20:30:30 C 19 14 41.32 +15 55 35.6 r 151
2008-07-10 20:31:08 C 19 14 41.30 +15 55 34.1 r 151
2008-07-12 00:25:05 C 19 14 13.36 +14 47 05.5 r B09
2008-07-12 00:31:47 C 19 14 13.22 +14 46 49.0 r B09
2008-07-12 00:38:07 C 19 14 13.08 +14 46 33.5 r B09
2008-07-12 07:19:36 C 19 14 06.88 +14 30 12.0 r H45
2008-07-12 07:22:28 C 19 14 06.81 +14 30 04.9 r H45
2008-07-12 07:23:49 C 19 14 06.79 +14 30 01.8 r H45
2008-07-12 07:24:53 C 19 14 06.77 +14 29 59.1 r H45
2008-07-12 07:26:59 C 19 14 06.73 +14 29 53.9 r H45
2008-07-12 15:19:09 C 19 13 59.84 +14 10 36.4 m 379
2008-07-12 15:24:28 C 19 13 59.72 +14 10 23.7 m 379
2008-07-12 15:31:09 C 19 13 59.55 +14 10 07.2 m 379
2008-07-12 15:33:50 C 19 13 59.49 +14 10 00.4 m 379
2008-07-12 15:36:30 C 19 13 59.44 +14 09 54.0 m 379
2008-07-13 12:47:53 C 19 13 41.69 +13 18 01.9 r 379
2008-07-13 12:50:34 C 19 13 41.65 +13 17 55.7 r 379
2008-07-13 13:07:14 C 19 13 41.30 +13 17 15.1 r 379
2008-07-13 14:58:10 C 19 13 38.96 +13 12 44.1 r 379
2008-07-13 15:03:29 C 19 13 38.88 +13 12 31.1 r 379
2008-07-13 15:15:29 C 19 13 38.61 +13 12 01.5 r 379
2008-07-14 21:47:25 C 19 13 13.86 +11 57 33.5 o 204
2008-07-14 21:49:25 C 19 13 13.83 +11 57 28.7 o 204
2008-07-14 21:51:25 C 19 13 13.79 +11 57 24.0 o 204
2008-07-14 21:53:24 C 19 13 13.75 +11 57 19.1 o 204
2008-07-14 22:16:57 C 19 13 13.31 +11 56 22.1 o 204
2008-07-15 08:29:47 C 19 13 04.04 +11 31 38.7 r H45
2008-07-15 08:31:18 C 19 13 04.02 +11 31 35.1 r H45
2008-07-15 08:33:14 C 19 13 03.98 +11 31 30.2 r H45
2008-07-15 08:46:08 C 19 13 03.75 +11 30 59.0 r H45
2008-07-15 08:48:44 C 19 13 03.71 +11 30 52.6 r H45
2008-07-15 22:44:45 C 19 12 54.34 +10 57 09.1 r B19
2008-07-15 22:46:27 C 19 12 54.29 +10 57 05.0 r B19
2008-07-15 22:48:08 C 19 12 54.26 +10 57 01.1 r B19
2008-07-16 07:33:06 C 19 12 46.93 +10 35 57.6 r H45
2008-07-16 07:36:56 C 19 12 46.86 +10 35 48.6 r H45
2008-07-16 07:38:21 C 19 12 46.86 +10 35 45.2 r H45