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
2017-07-18 02:56:26 C 17 17 23.05 +12 48 07.3 q W19
2017-07-18 03:05:28 C 17 17 23.72 +12 47 42.6 q W19
2017-07-18 03:06:48 C 17 17 23.81 +12 47 38.8 q W19
2017-07-18 03:17:14 C 17 17 24.60 +12 47 11.0 q W19
2017-07-18 03:48:02 C 17 17 27.02 +12 45 50.7 q H45
2017-07-18 03:49:14 C 17 17 27.11 +12 45 47.5 q H45
2017-07-18 03:50:24 C 17 17 27.19 +12 45 44.3 q H45
2017-07-18 03:52:06 C 17 17 27.31 +12 45 39.7 q H45
2017-07-18 03:53:29 C 17 17 27.42 +12 45 35.9 q H45
2017-07-18 03:54:44 C 17 17 27.51 +12 45 32.6 q H45
2017-07-18 09:17:45 C 17 17 52.73 +12 31 09.4 L T08
2017-07-18 09:24:19 C 17 17 53.21 +12 30 51.6 L T08
2017-07-18 09:44:40 C 17 17 54.69 +12 29 56.8 L T08
2017-07-18 09:56:25 C 17 17 55.56 +12 29 25.1 L T08
2017-07-18 21:29:13 C 17 18 51.19 +11 58 20.5 q 160
2017-07-18 21:31:15 C 17 18 51.34 +11 58 15.0 q 160
2017-07-18 21:33:18 C 17 18 51.50 +11 58 09.5 q 160
2017-07-19 20:30:08 C 17 20 40.66 +10 57 19.3 q 246
2017-07-19 20:30:27 C 17 20 40.69 +10 57 18.4 q 246
2017-07-19 20:31:37 C 17 20 40.78 +10 57 15.2 q 246
2017-07-19 20:31:50 C 17 20 40.80 +10 57 14.8 q 246
2017-07-19 20:32:36 C 17 20 40.85 +10 57 12.8 q 246
2017-07-19 20:33:02 C 17 20 40.89 +10 57 11.6 q 246
2017-07-19 20:42:28 C 17 20 41.67 +10 56 48.5 q 160
2017-07-19 20:44:32 C 17 20 41.81 +10 56 43.3 q 160
2017-07-19 20:46:34 C 17 20 41.97 +10 56 37.9 q 160
2017-07-20 04:36:04 C 17 21 18.64 +10 36 08.9 q H45
2017-07-20 04:37:31 C 17 21 18.75 +10 36 05.1 q H45
2017-07-20 04:38:46 C 17 21 18.83 +10 36 02.0 q H45
2017-07-20 04:40:01 C 17 21 18.93 +10 35 58.5 q H45
2017-07-20 04:41:59 C 17 21 19.07 +10 35 53.4 q H45
2017-07-20 04:43:45 C 17 21 19.21 +10 35 48.8 q H45
2017-07-20 13:44:01 C 17 22 02.05 +10 12 20.0 q D29
2017-07-20 14:04:23 C 17 22 03.53 +10 11 27.0 q D29
2017-07-20 14:24:44 C 17 22 05.01 +10 10 34.0 q D29
2017-07-20 23:59:20 C 17 22 50.60 +09 46 05.7 r Y00
2017-07-21 00:00:54 C 17 22 50.79 +09 46 02.3 r Y00
2017-07-21 00:02:23 C 17 22 50.79 +09 45 58.2 r Y00
2017-07-21 04:00:16 C 17 23 09.10 +09 35 19.0 q W19
2017-07-21 04:06:39 C 17 23 09.59 +09 35 03.0 q W19
2017-07-21 04:12:57 C 17 23 10.03 +09 34 46.4 q W19
2017-07-21 04:19:23 C 17 23 10.50 +09 34 29.9 q W19
2017-07-21 04:25:52 C 17 23 10.98 +09 34 13.3 q W19
2017-07-21 09:25:02 C 17 23 34.20 +09 21 32.5 L T08
2017-07-21 09:37:45 C 17 23 35.13 +09 20 59.9 L T08
2017-07-21 09:51:09 C 17 23 36.09 +09 20 25.3 L T08
2017-07-21 10:03:55 C 17 23 37.03 +09 19 52.4 L T08
2017-07-21 22:10:03 C 17 24 34.45 +08 48 49.3 15.9 q 006
2017-07-21 22:14:07 C 17 24 34.74 +08 48 39.0 16.0 q 006
2017-07-21 22:18:13 C 17 24 35.04 +08 48 28.6 16.0 q 006