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
2006-09-20 07:18:47 C 00 28 40.11 -14 40 11.5 r 703
2006-09-20 07:28:55 C 00 28 39.57 -14 40 18.3 r 703
2006-09-26 07:39:10 C 00 20 47.47 -16 02 21.0 r 703
2006-09-26 07:49:48 C 00 20 46.89 -16 02 26.5 r 703
2006-09-26 08:00:29 C 00 20 46.28 -16 02 31.8 r 703
2006-09-26 08:11:07 C 00 20 45.70 -16 02 36.8 r 703
2007-11-11 10:31:58 C 09 01 29.11 +03 44 30.8 19.8 c 704
2007-11-11 10:50:18 C 09 01 30.34 +03 44 24.9 20.3 c 704
2007-11-11 10:59:26 C 09 01 30.93 +03 44 21.0 r 703
2007-11-11 11:08:10 C 09 01 31.60 +03 44 18.6 20.2 c 704
2007-11-11 11:11:54 C 09 01 31.80 +03 44 16.2 r 703
2007-11-11 11:24:17 C 09 01 32.55 +03 44 13.1 r 703
2007-11-11 11:26:01 C 09 01 32.87 +03 44 11.9 19.7 c 704
2007-11-11 11:36:42 C 09 01 33.56 +03 44 08.8 r 703
2007-11-11 11:43:51 C 09 01 34.01 +03 44 04.1 20.1 c 704
2007-11-21 09:46:46 C 09 17 55.86 +02 24 26.2 r 703
2007-11-21 09:54:31 C 09 17 56.36 +02 24 21.8 r 703
2007-11-21 10:02:19 C 09 17 56.79 +02 24 21.5 r 703
2007-11-21 10:10:04 C 09 17 57.30 +02 24 18.7 r 703
2007-12-05 09:55:37 C 09 40 19.45 +00 38 24.2 r 703
2007-12-05 10:05:00 C 09 40 20.06 +00 38 22.4 r 703
2007-12-05 10:14:23 C 09 40 20.67 +00 38 19.3 r 703
2007-12-05 10:23:41 C 09 40 21.28 +00 38 16.0 r 703
2007-12-17 11:01:07 C 09 58 50.82 -00 36 55.1 r H45
2007-12-17 11:04:17 C 09 58 51.00 -00 36 55.9 r H45
2007-12-17 11:06:13 C 09 58 51.15 -00 36 56.3 r H45
2007-12-17 11:08:32 C 09 58 51.28 -00 36 56.8 r H45
2007-12-17 11:10:35 C 09 58 51.41 -00 36 57.4 r H45
2008-01-12 09:03:38 C 10 36 45.25 -01 13 42.7 r 703
2008-01-12 09:14:15 C 10 36 45.82 -01 13 41.1 r 703
2008-01-12 09:24:47 C 10 36 46.44 -01 13 39.5 r 703
2008-01-12 09:35:21 C 10 36 47.01 -01 13 37.3 r 703
2008-01-12 11:18:51 C 10 36 52.78 -01 13 19.5 17.9 c 704
2008-01-12 11:36:59 C 10 36 53.73 -01 13 16.0 17.6 c 704
2008-01-12 11:55:01 C 10 36 54.70 -01 13 13.3 18.0 c 704
2008-01-16 06:44:31 C 10 42 19.76 -00 52 18.5 16.9 c 704
2008-01-16 07:03:08 C 10 42 20.82 -00 52 12.8 17.1 c 704
2008-01-16 07:21:44 C 10 42 21.90 -00 52 07.8 17.0 c 704
2008-01-16 07:40:21 C 10 42 22.89 -00 52 02.9 17.2 c 704
2008-01-16 07:59:13 C 10 42 23.97 -00 51 57.1 17.2 c 704
2008-01-19 01:10:30 C 10 46 17.06 -00 30 39.2 r B19
2008-01-19 01:23:25 C 10 46 17.86 -00 30 34.4 r B19
2008-01-19 01:36:20 C 10 46 18.66 -00 30 30.4 r B19
2008-01-19 08:15:35 C 10 46 42.38 -00 28 00.0 r H51
2008-01-19 08:17:12 C 10 46 42.38 -00 27 59.4 r H51
2008-01-19 08:17:59 C 10 46 42.40 -00 27 59.0 r H51
2008-01-19 08:18:48 C 10 46 42.45 -00 27 58.5 r H51
2008-01-19 08:19:37 C 10 46 42.49 -00 27 58.1 r H51
2008-01-24 07:08:21 C 10 53 52.13 +00 27 52.2 r H51
2008-01-24 07:09:09 C 10 53 52.20 +00 27 53.1 r H51