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
2017-03-25 05:56:37 C 09 08 31.73 +49 42 33.1 q 703
2017-03-25 20:37:29 C 09 09 04.41 +50 10 51.3 15.8 q Z43
2017-03-25 21:50:46 C 09 09 06.43 +50 13 11.5 15.7 q Z43
2017-03-25 22:55:51 C 09 09 08.31 +50 15 15.8 15.8 q Z43
2017-03-26 08:21:35 C 09 09 30.25 +50 33 34.3 L T05
2017-03-26 08:50:25 C 09 09 31.04 +50 34 28.4 L T05
2017-03-26 09:07:50 C 09 09 31.51 +50 35 01.0 L T05
2017-03-26 09:30:35 C 09 09 32.15 +50 35 42.9 L T05
2017-03-26 20:13:24 C 09 10 00.52 +50 55 50.5 15.7 q Z43
2017-03-26 20:50:21 C 09 10 01.72 +50 57 00.8 14.9 q Z43
2017-03-26 21:22:16 C 09 10 02.74 +50 58 01.0 15.1 q Z43
2017-03-27 20:59:10 C 09 11 06.26 +51 42 06.8 U J69
2017-03-27 21:09:36 C 09 11 06.67 +51 42 26.1 U J69
2017-03-28 06:08:07 C 09 11 30.77 +51 59 00.3 q H45
2017-03-28 06:08:52 C 09 11 30.80 +51 59 01.5 q H45
2017-03-28 06:09:39 C 09 11 30.84 +51 59 03.0 q H45
2017-03-28 06:10:37 C 09 11 30.87 +51 59 04.6 q H45
2017-03-28 06:11:34 C 09 11 30.92 +51 59 06.4 q H45
2017-03-28 06:12:27 C 09 11 30.95 +51 59 07.9 q H45
2017-03-28 19:22:39 C 09 12 13.35 +52 23 13.4 q K73
2017-03-28 19:23:32 C 09 12 13.39 +52 23 15.0 q K73
2017-03-28 19:24:07 C 09 12 14.01 +52 23 14.4 q 006
2017-03-28 19:28:36 C 09 12 13.59 +52 23 24.0 q K73
2017-03-28 19:29:40 C 09 12 14.17 +52 23 25.4 q 006
2017-03-28 19:33:40 C 09 12 13.79 +52 23 33.8 q K73
2017-03-28 19:35:13 C 09 12 14.51 +52 23 34.8 q 006
2017-03-28 19:38:45 C 09 12 14.02 +52 23 43.0 q K73
2017-03-28 19:40:46 C 09 12 14.71 +52 23 45.6 q 006
2017-03-28 19:43:48 C 09 12 14.21 +52 23 52.3 q K73
2017-03-28 19:48:52 C 09 12 14.39 +52 24 01.2 q K73
2017-03-28 19:53:57 C 09 12 14.63 +52 24 10.3 q K73
2017-03-28 20:01:57 C 09 12 14.95 +52 24 24.9 q K73
2017-03-28 20:07:01 C 09 12 15.16 +52 24 33.9 q K73
2017-03-28 20:12:06 C 09 12 15.36 +52 24 43.2 q K73
2017-03-28 20:17:09 C 09 12 15.55 +52 24 52.4 q K73
2017-03-28 20:22:13 C 09 12 15.79 +52 25 01.5 q K73
2017-03-28 20:27:17 C 09 12 16.01 +52 25 10.5 q K73
2017-03-29 19:07:58 C 09 13 32.35 +53 05 52.1 q 006
2017-03-29 19:13:30 C 09 13 32.62 +53 06 02.3 q 006
2017-03-29 19:19:04 C 09 13 32.85 +53 06 12.1 q 006
2017-03-29 19:24:36 C 09 13 33.21 +53 06 22.3 q 006
2017-03-29 20:34:04 C 09 13 35.75 +53 08 26.4 q K73
2017-03-29 20:41:27 C 09 13 36.12 +53 08 39.2 q K73
2017-03-29 20:48:10 C 09 13 36.40 +53 08 50.9 q K73
2017-03-30 08:22:32 C 09 14 17.40 +53 29 26.9 L T05
2017-03-30 08:36:09 C 09 14 18.03 +53 29 50.4 L T05
2017-03-30 09:03:25 C 09 14 19.36 +53 30 36.9 L T05
2017-03-30 09:11:39 C 09 14 19.74 +53 30 51.0 L T05
2017-03-30 19:09:53 C 09 14 58.86 +53 48 10.4 q K73
2017-03-30 19:14:14 C 09 14 59.05 +53 48 17.6 q K73