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
2008-06-23 05:00:14 C 19 21 57.21 +32 18 02.1 r H45
2008-06-24 04:41:37 C 19 21 37.81 +31 28 30.2 r H53
2008-06-24 04:42:51 C 19 21 37.79 +31 28 27.9 r H53
2008-06-24 04:44:09 C 19 21 37.76 +31 28 25.1 r H53
2008-06-24 04:45:33 C 19 21 37.71 +31 28 22.4 r H53
2008-06-24 04:48:11 C 19 21 37.66 +31 28 16.6 r H53
2008-06-24 04:49:49 C 19 21 37.65 +31 28 13.2 r H53
2008-06-24 16:47:58 C 19 21 25.88 +31 02 56.9 r 379
2008-06-24 16:57:19 C 19 21 25.68 +31 02 37.0 r 379
2008-06-24 17:02:38 C 19 21 25.59 +31 02 25.4 r 379
2008-06-24 17:09:17 C 19 21 25.43 +31 02 11.6 r 379
2008-06-25 00:13:50 C 19 21 20.13 +30 47 04.0 r B19
2008-06-25 00:16:38 C 19 21 20.04 +30 46 58.0 r B19
2008-06-25 00:19:28 C 19 21 20.01 +30 46 52.0 r B19
2008-06-25 08:53:04 C 19 21 11.29 +30 28 34.3 r H45
2008-06-25 08:53:49 C 19 21 11.26 +30 28 32.7 r H45
2008-06-25 08:56:03 C 19 21 11.21 +30 28 27.9 r H45
2008-06-25 08:58:51 C 19 21 11.15 +30 28 21.8 r H45
2008-06-25 09:11:13 C 19 21 10.87 +30 27 54.9 r H45
2008-06-28 00:07:06 C 19 20 11.67 +28 09 55.7 c J27
2008-06-28 00:10:15 C 19 20 11.65 +28 09 49.0 c J27
2008-06-28 00:29:59 C 19 20 11.19 +28 09 05.3 c J27
2008-06-29 01:31:39 C 19 19 44.69 +27 12 44.1 r B19
2008-06-29 01:33:55 C 19 19 44.64 +27 12 39.1 r B19
2008-06-29 01:35:36 C 19 19 44.57 +27 12 35.0 r B19
2008-07-02 04:46:37 C 19 18 24.53 +24 18 53.3 r H45
2008-07-02 04:48:52 C 19 18 24.47 +24 18 48.1 r H45
2008-07-02 04:50:26 C 19 18 24.43 +24 18 44.4 r H45
2008-07-02 04:52:20 C 19 18 24.38 +24 18 40.0 r H45
2008-07-02 04:53:50 C 19 18 24.35 +24 18 36.6 r H45
2008-07-02 21:23:30 C 19 18 06.08 +23 39 35.9 r A30
2008-07-02 21:24:59 C 19 18 06.04 +23 39 32.4 r A30
2008-07-02 21:26:50 C 19 18 06.00 +23 39 28.1 r A30
2008-07-02 21:28:41 C 19 18 05.96 +23 39 23.7 r A30
2008-07-02 21:30:34 C 19 18 05.91 +23 39 19.3 r A30
2008-07-04 22:19:56 C 19 17 11.33 +21 42 40.0 r A16
2008-07-04 22:35:58 C 19 17 10.94 +21 42 01.7 r A16
2008-07-04 22:52:01 C 19 17 10.55 +21 41 23.4 r A16
2008-07-04 22:55:46 C 19 17 09.58 +21 41 17.8 15.6 r C20
2008-07-04 23:08:03 C 19 17 10.15 +21 40 44.5 r A16
2008-07-04 23:24:04 C 19 17 09.77 +21 40 06.3 r A16
2008-07-04 23:40:05 C 19 17 09.38 +21 39 27.6 r A16
2008-07-04 23:56:06 C 19 17 08.97 +21 38 49.2 r A16
2008-07-08 08:11:12 C 19 15 41.09 +18 23 46.6 r H45
2008-07-08 08:12:45 C 19 15 41.04 +18 23 42.5 r H45
2008-07-08 08:16:53 C 19 15 40.94 +18 23 32.7 r H45
2008-07-08 08:19:47 C 19 15 40.88 +18 23 25.5 r H45
2008-07-08 08:22:13 C 19 15 40.82 +18 23 19.5 r H45
2008-07-08 23:36:27 C 19 15 26.01 +17 45 56.5 c J27
2008-07-08 23:43:39 C 19 15 25.83 +17 45 39.4 c J27