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
2017-03-30 19:18:39 C 09 14 59.94 +53 48 23.9 q 006
2017-03-30 19:20:26 C 09 14 59.39 +53 48 28.4 q K73
2017-03-30 19:24:12 C 09 15 00.23 +53 48 34.0 q 006
2017-03-30 19:29:26 C 09 14 59.85 +53 48 44.0 q K73
2017-03-30 19:29:45 C 09 15 00.52 +53 48 43.9 q 006
2017-03-30 19:35:11 C 09 15 00.16 +53 48 54.4 q K73
2017-03-30 19:35:18 C 09 15 00.79 +53 48 53.6 q 006
2017-03-30 19:40:55 C 09 15 00.46 +53 49 04.3 q K73
2017-03-31 06:43:56 C 09 15 40.96 +54 08 05.8 q H45
2017-03-31 06:45:01 C 09 15 41.02 +54 08 07.6 q H45
2017-03-31 06:46:17 C 09 15 41.09 +54 08 09.8 q H45
2017-03-31 06:47:23 C 09 15 41.17 +54 08 11.5 q H45
2017-03-31 06:48:16 C 09 15 41.22 +54 08 13.0 q H45
2017-03-31 06:49:31 C 09 15 41.30 +54 08 15.0 q H45
2017-04-01 06:20:34 C 09 17 18.65 +54 48 22.9 q H45
2017-04-01 06:21:37 C 09 17 18.73 +54 48 24.5 q H45
2017-04-01 06:23:12 C 09 17 18.82 +54 48 27.0 q H45
2017-04-01 06:24:14 C 09 17 18.88 +54 48 28.8 q H45
2017-04-01 06:25:29 C 09 17 18.97 +54 48 30.8 q H45
2017-04-01 06:26:37 C 09 17 19.05 +54 48 32.6 q H45
2017-04-01 07:19:41 C 09 17 24.984 +54 50 17.38 L F51
2017-04-01 07:27:59 C 09 17 25.43 +54 50 31.7 L T08
2017-04-01 07:39:20 C 09 17 26.125 +54 50 50.18 L F51
2017-04-01 07:48:08 C 09 17 26.58 +54 51 05.2 L T08
2017-04-01 07:59:00 C 09 17 27.269 +54 51 23.03 L F51
2017-04-01 08:07:42 C 09 17 27.73 +54 51 37.7 L T08
2017-04-01 08:18:42 C 09 17 28.406 +54 51 55.57 L F51
2017-04-01 08:27:30 C 09 17 28.88 +54 52 10.4 L T08
2017-04-02 22:38:57 S 09 20 27.77 +55 55 02.6 L C51
2017-04-03 01:47:38 S 09 20 43.27 +56 00 08.8 L C51
2017-04-03 03:14:42 C 09 20 50.00 +56 02 45.5 q G96
2017-04-03 03:20:17 C 09 20 50.40 +56 02 54.6 q G96
2017-04-03 03:25:51 C 09 20 50.79 +56 03 03.8 q G96
2017-04-03 03:31:30 C 09 20 51.18 +56 03 12.9 q G96
2017-04-03 04:56:09 S 09 20 58.95 +56 05 14.3 L C51
2017-04-03 09:39:04 S 09 21 22.73 +56 12 50.5 L C51
2017-04-03 11:13:31 S 09 21 30.75 +56 15 22.1 L C51
2017-04-03 12:47:45 S 09 21 38.78 +56 17 53.8 L C51
2017-04-03 14:22:00 S 09 21 46.87 +56 20 25.0 L C51
2017-04-03 15:56:15 S 09 21 55.00 +56 22 56.0 L C51
2017-04-03 17:30:41 S 09 22 03.15 +56 25 26.7 L C51
2017-04-03 19:04:57 S 09 22 11.35 +56 27 57.3 L C51
2017-04-03 22:13:38 S 09 22 27.869 +56 32 57.77 L C51
2017-04-04 01:22:08 S 09 22 44.53 +56 37 57.5 L C51
2017-04-04 04:30:49 S 09 23 01.375 +56 42 56.12 L C51
2017-04-05 06:48:29 C 09 25 27.26 +57 24 22.5 L T08
2017-04-05 07:10:09 C 09 25 29.02 +57 24 55.6 L T08
2017-04-05 07:30:38 C 09 25 30.71 +57 25 26.9 L T08
2017-04-05 07:51:30 C 09 25 32.39 +57 25 58.5 L T08
2017-04-05 20:47:03 C 09 26 49.73 +57 45 33.3 16.7 q Z43