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
2017-07-21 22:21:43 C 17 24 35.30 +08 48 20.0 15.6 q 006
2017-07-21 22:25:13 C 17 24 35.53 +08 48 10.7 15.7 q 006
2017-07-22 21:12:48 C 17 26 22.52 +07 50 39.9 q 160
2017-07-22 21:14:55 C 17 26 22.68 +07 50 34.6 q 160
2017-07-22 21:16:54 C 17 26 22.82 +07 50 29.5 q 160
2017-07-22 22:14:51 C 17 26 27.20 +07 48 05.1 15.8 q 006
2017-07-22 22:18:56 C 17 26 27.48 +07 47 55.5 15.9 q 006
2017-07-22 22:22:26 C 17 26 27.76 +07 47 46.3 15.8 q 006
2017-07-22 22:25:57 C 17 26 28.01 +07 47 37.6 15.8 q 006
2017-07-22 22:30:40 C 17 26 28.35 +07 47 25.7 15.7 q 006
2017-07-25 04:09:33 C 17 30 38.50 +05 36 06.1 q W19
2017-07-25 04:13:40 C 17 30 38.80 +05 35 56.7 q W19
2017-07-25 04:17:36 C 17 30 39.10 +05 35 46.8 q W19
2017-07-25 04:21:35 C 17 30 39.39 +05 35 37.5 q W19
2017-07-25 04:25:35 C 17 30 39.68 +05 35 27.9 q W19
2017-07-25 07:26:22 C 17 30 53.02 +05 28 17.3 q H45
2017-07-25 07:27:48 C 17 30 53.14 +05 28 13.7 q H45
2017-07-25 07:29:00 C 17 30 53.22 +05 28 10.9 q H45
2017-07-25 07:29:58 C 17 30 53.28 +05 28 08.3 q H45
2017-07-25 07:30:52 C 17 30 53.35 +05 28 06.3 q H45
2017-07-25 09:13:14 C 17 31 01.81 +05 24 08.2 L T08
2017-07-25 09:18:51 C 17 31 02.20 +05 23 55.1 L T08
2017-07-25 09:31:36 C 17 31 03.12 +05 23 24.5 L T08
2017-07-25 09:39:23 C 17 31 03.70 +05 23 06.9 L T08
2017-07-25 09:45:04 C 17 31 04.10 +05 22 52.6 L T08
2017-07-25 09:57:47 C 17 31 05.01 +05 22 22.0 L T08
2017-07-27 09:35:09 C 17 34 46.08 +03 31 07.0 L T05
2017-07-27 09:48:28 C 17 34 47.04 +03 30 36.6 L T05
2017-07-27 10:02:30 C 17 34 48.06 +03 30 04.3 L T05
2017-07-27 10:15:46 C 17 34 49.02 +03 29 34.1 L T05
2017-07-28 22:05:45 C 17 37 35.57 +02 08 52.2 q J27
2017-07-28 22:16:52 C 17 37 36.37 +02 08 27.8 q J27
2017-07-28 22:19:50 C 17 37 36.59 +02 08 21.3 q J27
2017-07-29 21:26:23 C 17 39 23.43 +01 17 47.5 q 160
2017-07-29 21:29:19 C 17 39 23.64 +01 17 41.2 q 160
2017-07-29 21:32:13 C 17 39 23.85 +01 17 34.7 q 160
2017-07-30 20:01:39 C 17 41 08.13 +00 29 28.2 q 160
2017-07-30 20:04:34 C 17 41 08.35 +00 29 21.6 q 160
2017-07-30 20:07:30 C 17 41 08.58 +00 29 15.4 q 160
2017-08-01 03:00:12 C 17 43 31.02 -00 35 01.4 q W33
2017-08-01 03:19:50 C 17 43 32.43 -00 35 41.4 q W33
2017-08-01 03:31:18 C 17 43 33.34 -00 36 07.3 q W19
2017-08-01 03:35:15 C 17 43 33.63 -00 36 15.3 q W19
2017-08-01 03:39:10 C 17 43 33.94 -00 36 23.4 q W19
2017-08-01 03:43:06 C 17 43 34.20 -00 36 31.4 q W19
2017-08-01 03:47:13 C 17 43 34.52 -00 36 39.7 q W19
2017-08-01 22:10:03 C 17 44 59.44 -01 13 57.2 q J27
2017-08-01 22:15:30 C 17 44 59.83 -01 14 08.5 q J27
2017-08-01 22:19:35 C 17 45 00.15 -01 14 16.7 q J27
2017-08-04 09:06:21 C 17 49 31.40 -03 08 44.4 L T05