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
2008-05-23 01:24:44 C 19 11 38.91 +51 37 18.0 o J51
2008-05-31 07:55:06 C 19 19 34.57 +47 34 49.4 r H45
2008-05-31 07:56:33 C 19 19 34.58 +47 34 47.5 r H45
2008-05-31 08:07:24 C 19 19 34.78 +47 34 33.5 r H45
2008-05-31 08:08:57 C 19 19 34.80 +47 34 31.6 r H45
2008-05-31 08:11:10 C 19 19 34.85 +47 34 28.7 r H45
2008-06-02 07:46:45 C 19 20 48.77 +46 30 50.9 16.2 c 704
2008-06-02 08:07:27 C 19 20 49.04 +46 30 23.6 16.5 c 704
2008-06-02 08:22:05 C 19 20 49.22 +46 30 03.7 16.6 c 704
2008-06-02 08:38:09 C 19 20 49.44 +46 29 42.5 16.0 c 704
2008-06-10 22:05:00 C 19 23 31.96 +41 23 10.3 c J93
2008-06-10 22:12:08 C 19 23 31.81 +41 22 58.0 c J93
2008-06-10 22:15:42 C 19 23 31.73 +41 22 50.9 c J93
2008-06-13 07:30:40 C 19 23 38.44 +39 47 28.8 16.2 c 704
2008-06-13 07:44:40 C 19 23 38.27 +39 47 04.9 16.3 c 704
2008-06-13 07:58:44 C 19 23 38.23 +39 46 41.8 16.1 c 704
2008-06-13 08:12:44 C 19 23 38.12 +39 46 18.1 16.6 c 704
2008-06-13 08:26:40 C 19 23 37.99 +39 45 53.5 16.4 c 704
2008-06-17 08:58:48 C 19 23 18.43 +36 53 25.2 r H45
2008-06-17 09:00:37 C 19 23 18.39 +36 53 22.2 r H45
2008-06-17 09:04:08 C 19 23 18.33 +36 53 15.5 r H45
2008-06-17 09:09:56 C 19 23 18.27 +36 53 04.5 r H45
2008-06-17 09:12:12 C 19 23 18.22 +36 53 00.3 r H45
2008-06-18 06:13:08 C 19 23 11.17 +36 13 34.3 r H45
2008-06-18 06:13:51 C 19 23 11.15 +36 13 32.9 r H45
2008-06-18 06:16:00 C 19 23 11.12 +36 13 28.9 r H45
2008-06-18 06:18:56 C 19 23 11.07 +36 13 23.4 r H45
2008-06-18 06:22:56 C 19 23 11.02 +36 13 15.9 r H45
2008-06-19 23:58:50 C 19 22 50.31 +34 53 14.8 r J51
2008-06-20 00:05:25 C 19 22 50.19 +34 53 02.2 r J51
2008-06-20 00:12:01 C 19 22 50.07 +34 52 49.5 r J51
2008-06-21 02:06:01 C 19 22 32.47 +34 01 33.2 c B37
2008-06-21 02:10:13 C 19 22 32.38 +34 01 25.4 c B37
2008-06-21 02:13:20 C 19 22 32.31 +34 01 19.2 c B37
2008-06-22 23:47:26 C 19 22 00.73 +32 28 47.9 r B19
2008-06-22 23:51:22 C 19 22 00.64 +32 28 39.8 r B19
2008-06-22 23:55:35 C 19 22 00.56 +32 28 31.1 r B19
2008-06-22 23:56:16 C 19 22 00.58 +32 28 30.3 c A06
2008-06-23 00:00:46 C 19 22 00.49 +32 28 21.0 c A06
2008-06-23 00:05:17 C 19 22 00.38 +32 28 11.8 c A06
2008-06-23 02:32:31 C 19 21 57.36 +32 23 06.6 c B37
2008-06-23 02:35:50 C 19 21 57.29 +32 22 59.7 c B37
2008-06-23 02:40:56 C 19 21 57.20 +32 22 49.5 c B37
2008-06-23 02:41:03 C 19 21 57.19 +32 22 49.1 c B37
2008-06-23 02:41:19 C 19 21 57.18 +32 22 48.7 c B37
2008-06-23 02:46:58 C 19 21 57.07 +32 22 36.4 c B37
2008-06-23 04:54:26 C 19 21 57.32 +32 18 13.9 r H45
2008-06-23 04:55:21 C 19 21 57.30 +32 18 11.9 r H45
2008-06-23 04:57:28 C 19 21 57.27 +32 18 07.8 r H45
2008-06-23 04:58:51 C 19 21 57.23 +32 18 04.8 r H45