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
2008-01-24 07:09:58 C 10 53 52.24 +00 27 53.1 r H51
2008-01-24 07:10:47 C 10 53 52.29 +00 27 54.2 r H51
2008-01-24 07:11:34 C 10 53 52.35 +00 27 55.1 r H51
2008-01-24 07:12:23 C 10 53 52.42 +00 27 54.7 r H51
2008-01-24 07:13:11 C 10 53 52.45 +00 27 55.6 r H51
2008-01-24 07:14:00 C 10 53 52.48 +00 27 55.7 r H51
2008-01-24 07:14:47 C 10 53 52.55 +00 27 56.6 r H51
2008-01-24 07:15:35 C 10 53 52.58 +00 27 56.8 r H51
2008-01-24 07:16:25 C 10 53 52.64 +00 27 56.8 r H51
2008-01-24 07:17:12 C 10 53 52.70 +00 27 57.6 r H51
2008-01-24 07:18:02 C 10 53 52.75 +00 27 58.5 r H51
2008-01-24 07:18:50 C 10 53 52.76 +00 27 58.6 r H51
2008-01-24 07:19:38 C 10 53 52.81 +00 27 59.1 r H51
2008-01-24 07:20:28 C 10 53 52.85 +00 27 59.4 r H51
2008-01-24 07:21:14 C 10 53 52.92 +00 28 00.1 r H51
2008-01-24 07:22:03 C 10 53 52.99 +00 28 00.9 r H51
2008-01-24 07:22:52 C 10 53 53.02 +00 28 01.1 r H51
2008-01-24 07:23:40 C 10 53 53.07 +00 28 01.5 r H51
2008-01-30 08:09:31 C 11 02 49.41 +02 09 41.8 r H45
2008-01-30 08:11:06 C 11 02 49.49 +02 09 43.3 r H45
2008-01-30 08:13:07 C 11 02 49.60 +02 09 44.8 r H45
2008-01-30 08:14:56 C 11 02 49.72 +02 09 46.4 r H45
2008-01-30 08:17:24 C 11 02 49.87 +02 09 48.3 r H45
2008-02-03 08:03:09 C 11 08 58.22 +03 41 54.2 o 691
2008-02-03 08:09:47 C 11 08 58.56 +03 42 01.3 16.1 c 704
2008-02-03 08:28:23 C 11 08 59.68 +03 42 21.1 16.4 c 704
2008-02-03 08:28:30 C 11 08 59.75 +03 42 21.6 o 691
2008-02-03 08:46:10 C 11 09 00.76 +03 42 40.3 16.0 c 704
2008-02-03 08:53:52 C 11 09 01.27 +03 42 49.0 o 691
2008-02-03 09:03:57 C 11 09 01.81 +03 42 59.7 16.2 c 704
2008-02-03 09:21:46 C 11 09 02.89 +03 43 19.0 16.3 c 704
2008-02-07 09:18:45 C 11 15 27.80 +05 39 36.1 o 691
2008-02-07 09:48:18 C 11 15 29.64 +05 40 15.9 o 691
2008-02-09 09:58:56 C 11 18 50.97 +06 48 45.2 w 699
2008-02-09 10:35:45 C 11 18 53.37 +06 49 40.3 w 699
2008-02-09 11:12:33 C 11 18 55.76 +06 50 35.3 w 699
2008-02-09 11:49:54 C 11 18 58.21 +06 51 31.2 w 699
2008-02-09 12:10:54 C 11 18 59.56 +06 52 02.4 w 699
2008-02-09 12:31:55 C 11 19 00.99 +06 52 33.9 w 699
2008-02-09 12:52:57 C 11 19 02.40 +06 53 05.6 w 699
2008-02-09 16:29:07 C 11 19 19.44 +06 58 33.7 r D29
2008-02-09 16:50:32 C 11 19 20.82 +06 59 06.4 r D29
2008-02-09 17:10:59 C 11 19 22.15 +06 59 37.5 r D29
2008-02-09 17:30:28 C 11 19 23.41 +07 00 07.1 r D29
2008-02-11 00:11:02 C 11 21 35.98 +07 48 11.0 r 130
2008-02-11 00:11:50 C 11 21 36.04 +07 48 12.4 r 130
2008-02-11 00:13:24 C 11 21 36.14 +07 48 14.9 r 130
2008-02-11 00:14:34 C 11 21 36.22 +07 48 16.7 r 130
2008-02-11 09:46:00 C 11 22 17.06 +08 03 55.0 r H45
2008-02-11 09:47:35 C 11 22 17.15 +08 03 57.5 r H45