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
2017-04-20 21:36:44 C 10 22 30.69 +65 13 57.1 16.0 U Z52
2017-04-21 06:02:07 C 10 24 17.60 +65 21 55.5 q 703
2017-04-21 06:09:48 C 10 24 19.18 +65 22 01.8 q 703
2017-04-21 06:17:29 C 10 24 20.59 +65 22 09.0 q 703
2017-04-22 21:50:10 C 10 33 10.14 +65 57 09.4 16.1 q Z43
2017-04-22 22:23:46 C 10 33 17.35 +65 57 36.7 15.9 q Z43
2017-04-22 23:26:21 C 10 33 30.93 +65 58 27.0 15.9 q Z43
2017-04-23 20:32:28 C 10 38 28.81 +66 15 54.9 16.5 q Z43
2017-04-23 20:55:23 C 10 38 33.84 +66 16 11.3 16.2 U Z52
2017-04-23 21:03:49 C 10 38 35.80 +66 16 20.0 16.7 q Z43
2017-04-23 21:31:57 C 10 38 42.05 +66 16 40.1 16.2 U Z52
2017-04-23 21:34:22 C 10 38 42.60 +66 16 44.4 16.7 q Z43
2017-04-23 22:06:05 C 10 38 49.77 +66 17 08.4 16.7 q Z43
2017-04-25 01:31:34 C 10 45 26.56 +66 38 06.1 U Z52
2017-04-25 01:55:27 C 10 45 32.39 +66 38 22.2 U Z52
2017-04-25 02:32:03 C 10 45 41.40 +66 38 46.7 U Z52
2017-04-25 05:54:48 C 10 46 31.57 +66 41 33.5 q H45
2017-04-25 05:55:55 C 10 46 31.85 +66 41 34.2 q H45
2017-04-25 05:57:03 C 10 46 32.12 +66 41 35.0 q H45
2017-04-25 05:58:05 C 10 46 32.34 +66 41 35.6 q H45
2017-04-25 05:59:09 C 10 46 32.61 +66 41 36.4 q H45
2017-04-25 06:00:03 C 10 46 32.81 +66 41 36.9 q H45
2017-04-26 21:27:25 C 10 56 38.38 +67 08 53.0 U Z52
2017-04-26 22:17:49 C 10 56 50.93 +67 09 24.6 U Z52
2017-04-27 09:33:14 C 10 59 47.14 +67 16 43.3 L T05
2017-04-27 09:46:10 C 10 59 50.37 +67 16 50.4 L T05
2017-04-27 09:50:44 C 10 59 51.52 +67 16 52.9 L T05
2017-04-27 10:18:04 C 10 59 58.35 +67 17 07.9 L T05
2017-05-02 03:30:29 C 11 31 56.63 +68 12 31.6 q H45
2017-05-02 03:31:51 C 11 31 57.01 +68 12 32.1 q H45
2017-05-02 03:33:19 C 11 31 57.40 +68 12 32.7 q H45
2017-05-02 03:34:31 C 11 31 57.74 +68 12 33.0 q H45
2017-05-02 03:36:01 C 11 31 58.16 +68 12 33.5 q H45
2017-05-02 03:37:24 C 11 31 58.55 +68 12 34.0 q H45
2017-05-05 05:40:01 C 11 54 31.98 +68 31 35.9 q H45
2017-05-05 05:41:40 C 11 54 32.48 +68 31 36.1 q H45
2017-05-05 05:43:04 C 11 54 32.90 +68 31 36.2 q H45
2017-05-05 05:44:57 C 11 54 33.47 +68 31 36.4 q H45
2017-05-05 05:46:11 C 11 54 33.82 +68 31 36.6 q H45
2017-05-05 05:47:52 C 11 54 34.31 +68 31 36.8 q H45
2017-05-06 07:27:45 C 12 02 37.29 +68 34 51.7 q 703
2017-05-06 07:34:06 C 12 02 39.18 +68 34 51.0 q 703
2017-05-06 07:40:25 C 12 02 41.12 +68 34 52.3 q 703
2017-05-06 07:46:44 C 12 02 43.09 +68 34 52.3 q 703
2017-05-07 03:08:08 C 12 08 54.25 +68 36 13.7 u H21
2017-05-07 03:10:12 C 12 08 54.91 +68 36 13.6 u H21
2017-05-07 03:12:16 C 12 08 55.51 +68 36 13.8 u H21
2017-05-07 03:14:20 C 12 08 56.14 +68 36 13.9 u H21
2017-05-07 03:16:24 C 12 08 56.77 +68 36 13.9 u H21
2017-05-07 03:18:28 C 12 08 57.39 +68 36 14.0 u H21