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
2017-05-14 22:31:56 C 13 08 50.10 +67 54 23.2 q Z80
2017-05-14 22:34:05 C 13 08 50.78 +67 54 21.7 q Z80
2017-05-14 22:36:14 C 13 08 51.47 +67 54 20.5 q Z80
2017-05-14 22:38:44 C 13 08 52.19 +67 54 19.4 q Z80
2017-05-14 22:40:53 C 13 08 52.86 +67 54 18.3 q Z80
2017-05-15 05:01:19 C 13 10 51.76 +67 51 16.0 q H45
2017-05-15 05:02:02 C 13 10 52.00 +67 51 15.6 q H45
2017-05-15 05:03:48 C 13 10 52.50 +67 51 14.7 q H45
2017-05-15 05:04:47 C 13 10 52.77 +67 51 14.1 q H45
2017-05-15 05:05:42 C 13 10 53.07 +67 51 13.7 q H45
2017-05-15 05:06:39 C 13 10 53.33 +67 51 13.1 q H45
2017-05-15 08:25:24 C 13 11 53.67 +67 49 25.2 q 703
2017-05-15 08:37:55 C 13 11 57.40 +67 49 17.8 q 703
2017-05-15 08:45:36 C 13 11 59.72 +67 49 13.1 q 703
2017-05-15 09:01:07 C 13 12 04.43 +67 49 03.8 q 703
2017-05-18 04:13:54 C 13 32 46.12 +67 07 56.0 q W33
2017-05-18 04:27:29 C 13 32 49.97 +67 07 46.1 q W33
2017-05-18 04:43:26 C 13 32 54.49 +67 07 34.4 q W33
2017-05-18 04:59:26 C 13 32 59.04 +67 07 22.5 q W33
2017-05-19 07:11:54 C 13 40 47.29 +66 47 46.1 q 703
2017-05-19 07:19:41 C 13 40 49.44 +66 47 39.6 q 703
2017-05-19 07:27:26 C 13 40 51.63 +66 47 33.1 q 703
2017-05-19 07:35:10 C 13 40 53.80 +66 47 26.6 q 703
2017-05-19 08:28:26 C 13 41 11.61 +66 46 53.5 L T08
2017-05-19 08:47:17 C 13 41 16.78 +66 46 38.5 L T08
2017-05-19 09:17:13 C 13 41 25.00 +66 46 13.9 L T08
2017-05-19 09:25:40 C 13 41 27.31 +66 46 07.2 L T08
2017-05-21 23:07:59 C 13 59 11.05 +65 51 47.5 q Z80
2017-05-21 23:11:12 C 13 59 11.93 +65 51 44.1 q Z80
2017-05-21 23:14:25 C 13 59 12.71 +65 51 41.0 q Z80
2017-05-21 23:17:38 C 13 59 13.72 +65 51 37.4 q Z80
2017-05-21 23:20:52 C 13 59 14.51 +65 51 35.1 q Z80
2017-05-22 21:49:20 C 14 05 28.48 +65 29 15.0 U Z52
2017-05-22 22:39:18 C 14 05 41.51 +65 28 23.7 U Z52
2017-05-22 23:17:46 C 14 05 51.55 +65 27 43.5 U Z52
2017-05-23 23:04:57 C 14 12 16.94 +65 02 30.9 U Z52
2017-05-23 23:54:13 C 14 12 29.50 +65 01 35.9 U Z52
2017-05-24 00:44:04 C 14 12 42.26 +65 00 39.4 U Z52
2017-05-24 08:01:39 C 14 14 37.68 +64 52 43.8 q 703
2017-05-24 08:09:22 C 14 14 39.62 +64 52 34.6 q 703
2017-05-24 08:17:03 C 14 14 41.55 +64 52 25.7 q 703
2017-05-24 08:24:44 C 14 14 43.50 +64 52 16.5 q 703
2017-05-24 22:24:35 C 14 18 26.26 +64 36 21.4 16.9 q Z43
2017-05-25 00:16:22 C 14 18 53.97 +64 34 09.8 15.8 q Z43
2017-05-25 21:22:09 C 14 24 20.68 +64 09 08.6 U K87
2017-05-25 21:52:50 C 14 24 28.07 +64 08 31.2 U K87
2017-05-25 22:24:48 C 14 24 35.78 +64 07 51.8 U K87
2017-05-25 22:56:44 C 14 24 43.50 +64 07 12.3 U K87
2017-05-25 23:29:56 C 14 24 51.53 +64 06 30.6 U K87
2017-05-26 00:00:36 C 14 24 58.97 +64 05 51.9 U K87