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
2017-02-25 07:49:05 C 09 17 11.68 +23 48 15.8 q H45
2017-02-25 07:49:47 C 09 17 11.64 +23 48 17.3 q H45
2017-02-25 07:50:38 C 09 17 11.60 +23 48 19.5 q H45
2017-02-25 07:51:24 C 09 17 11.57 +23 48 21.2 q H45
2017-02-25 09:39:27 C 09 17 08.23 +23 52 49.8 L T05
2017-02-25 10:08:19 C 09 17 06.83 +23 53 58.4 L T05
2017-02-25 10:22:35 C 09 17 06.12 +23 54 32.6 L T05
2017-02-25 10:33:11 C 09 17 05.63 +23 54 57.8 L T05
2017-02-25 10:35:33 C 09 17 05.50 +23 55 03.3 L T05
2017-02-25 10:51:51 C 09 17 04.72 +23 55 42.2 L T05
2017-02-25 10:53:01 C 09 17 04.67 +23 55 45.0 L T05
2017-02-25 11:10:01 C 09 17 03.85 +23 56 25.5 L T05
2017-02-25 18:14:35 C 09 16 49.08 +24 13 10.5 q 107
2017-02-25 18:19:05 C 09 16 48.90 +24 13 21.3 q 107
2017-02-25 18:24:15 C 09 16 48.62 +24 13 34.3 q 107
2017-02-25 18:29:26 C 09 16 48.45 +24 13 46.4 q 107
2017-02-25 21:15:46 C 09 16 40.92 +24 20 31.3 u K83
2017-02-25 21:17:32 C 09 16 40.81 +24 20 35.4 u K83
2017-02-25 22:45:06 C 09 16 37.06 +24 24 07.0 q 006
2017-02-25 22:49:39 C 09 16 36.84 +24 24 18.1 q 006
2017-02-25 22:54:12 C 09 16 36.59 +24 24 28.9 q 006
2017-02-25 22:58:45 C 09 16 36.37 +24 24 39.9 q 006
2017-02-25 23:04:49 C 09 16 36.09 +24 24 54.6 q 006
2017-02-27 05:20:08 C 09 15 25.03 +25 38 16.8 R G45
2017-02-27 05:22:12 C 09 15 25.06 +25 38 20.2 q 703
2017-02-27 05:29:10 C 09 15 24.61 +25 38 38.8 R G45
2017-02-27 05:30:05 C 09 15 24.67 +25 38 39.5 q 703
2017-02-27 05:37:57 C 09 15 24.32 +25 38 58.5 q 703
2017-02-27 05:38:04 C 09 15 24.21 +25 39 00.9 R G45
2017-02-27 05:45:49 C 09 15 23.93 +25 39 17.7 q 703
2017-02-27 05:46:53 C 09 15 23.79 +25 39 22.3 R G45
2017-02-27 05:54:48 C 09 15 23.41 +25 39 41.5 R G45
2017-02-27 20:40:54 C 09 14 49.98 +26 15 39.1 q 006
2017-02-27 20:44:53 C 09 14 49.81 +26 15 48.8 q 006
2017-02-27 20:48:53 C 09 14 49.62 +26 15 58.7 q 006
2017-02-27 20:52:54 C 09 14 49.44 +26 16 08.6 q 006
2017-02-27 20:58:14 C 09 14 49.22 +26 16 21.8 q 006
2017-02-28 13:53:48 C 09 14 09.84 +26 57 55.2 o 300
2017-02-28 13:57:06 C 09 14 09.67 +26 58 03.5 o 300
2017-02-28 14:00:24 C 09 14 09.47 +26 58 11.9 o 300
2017-02-28 14:03:43 C 09 14 09.36 +26 58 20.2 o 300
2017-02-28 14:07:02 C 09 14 09.21 +26 58 28.0 o 300
2017-02-28 14:10:20 C 09 14 09.05 +26 58 36.3 o 300
2017-03-01 05:20:12 C 09 13 35.43 +27 35 54.3 R G45
2017-03-01 05:29:02 C 09 13 35.04 +27 36 16.0 R G45
2017-03-01 05:37:30 C 09 13 34.65 +27 36 36.8 R G45
2017-03-01 05:46:00 C 09 13 34.27 +27 36 57.8 R G45
2017-03-01 05:54:23 C 09 13 33.90 +27 37 18.5 R G45
2017-03-01 23:12:42 n 09 12 55.82 +28 19 52.1 q Z43
2017-03-01 23:45:58 n 09 12 54.39 +28 21 13.8 q Z43