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
2017-05-26 00:32:32 C 14 25 06.75 +64 05 11.4 U K87
2017-05-26 04:47:28 C 14 26 12.76 +64 00 09.9 q H45
2017-05-26 04:48:44 C 14 26 13.06 +64 00 08.4 q H45
2017-05-26 04:50:24 C 14 26 13.46 +64 00 06.3 q H45
2017-05-26 04:51:47 C 14 26 13.79 +64 00 04.6 q H45
2017-05-26 04:53:34 C 14 26 14.20 +64 00 02.4 q H45
2017-05-26 04:55:17 C 14 26 14.60 +64 00 00.3 q H45
2017-05-27 01:18:10 C 14 31 17.66 +63 34 05.0 q Z80
2017-05-27 01:19:56 C 14 31 18.10 +63 34 02.6 q Z80
2017-05-27 01:21:39 C 14 31 18.48 +63 34 00.2 q Z80
2017-05-27 01:23:25 C 14 31 18.94 +63 33 58.1 q Z80
2017-05-27 01:25:08 C 14 31 19.30 +63 33 55.4 q Z80
2017-05-27 01:26:54 C 14 31 19.74 +63 33 53.2 q Z80
2017-05-27 01:28:38 C 14 31 20.18 +63 33 50.9 q Z80
2017-05-27 01:30:23 C 14 31 20.57 +63 33 48.6 q Z80
2017-05-27 01:32:07 C 14 31 20.99 +63 33 46.2 q Z80
2017-05-27 09:08:08 C 14 33 14.25 +63 24 14.1 L T08
2017-05-27 09:25:24 C 14 33 18.14 +63 23 51.1 L T08
2017-05-27 09:54:57 C 14 33 24.84 +63 23 11.4 L T08
2017-05-27 10:01:07 C 14 33 26.23 +63 23 03.2 L T08
2017-05-28 07:30:27 14 38 36.53 +62 54 10.9 V04
2017-05-28 07:31:46 14 38 36.82 +62 54 09.0 V04
2017-05-28 07:33:04 14 38 37.10 +62 54 07.2 V04
2017-05-28 07:34:20 14 38 37.41 +62 54 05.4 V04
2017-05-29 04:17:17 14 43 32.40 +62 25 16.4 V04
2017-05-29 04:18:38 14 43 32.66 +62 25 14.5 V04
2017-05-29 07:15:28 C 14 44 10.89 +62 21 03.9 q 703
2017-05-29 07:23:13 C 14 44 12.57 +62 20 52.5 q 703
2017-05-29 07:30:55 C 14 44 14.25 +62 20 41.2 q 703
2017-05-29 07:38:36 C 14 44 15.92 +62 20 29.9 q 703
2017-05-30 06:13:21 C 14 49 25.15 +61 47 38.2 q H45
2017-05-30 06:14:49 C 14 49 25.47 +61 47 36.0 q H45
2017-05-30 06:15:50 C 14 49 25.69 +61 47 34.5 q H45
2017-05-30 06:16:52 C 14 49 25.89 +61 47 33.0 q H45
2017-05-30 06:18:07 C 14 49 26.15 +61 47 31.0 q H45
2017-05-30 06:19:03 C 14 49 26.36 +61 47 29.5 q H45
2017-05-30 09:35:57 C 14 50 11.21 +61 42 45.1 L T08
2017-05-30 10:01:34 C 14 50 16.55 +61 42 05.9 L T08
2017-05-30 10:27:08 C 14 50 21.86 +61 41 26.7 L T08
2017-05-30 10:43:12 C 14 50 25.22 +61 41 01.8 L T08
2017-05-31 00:42:19 C 14 53 32.28 +61 19 52.0 o Z22
2017-05-31 00:53:09 C 14 53 34.47 +61 19 35.2 o Z22
2017-05-31 01:04:16 C 14 53 36.74 +61 19 18.0 o Z22
2017-05-31 06:23:01 C 14 54 50.374 +61 11 08.86 L F51
2017-05-31 06:25:36 C 14 54 47.03 +61 11 00.6 q H45
2017-05-31 06:26:29 C 14 54 47.21 +61 10 59.1 q H45
2017-05-31 06:27:21 C 14 54 47.39 +61 10 57.8 q H45
2017-05-31 06:28:27 C 14 54 47.62 +61 10 56.0 q H45
2017-05-31 06:29:26 C 14 54 47.83 +61 10 54.6 q H45
2017-05-31 06:30:18 C 14 54 48.00 +61 10 53.2 q H45