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
2009-12-20 07:10:56 C 05 25 44.39 -01 44 45.4 19.1 c 704
2009-12-20 07:30:02 C 05 25 43.09 -01 44 44.3 19.4 c 704
2010-01-02 19:28:24 C 05 05 26.10 -00 38 37.7 r A13
2010-01-02 20:06:18 C 05 05 23.95 -00 38 27.7 r A13
2010-01-15 05:39:23 C 04 50 39.59 +01 14 33.3 19.3 c 704
2010-01-15 05:57:58 C 04 50 38.83 +01 14 42.6 19.4 c 704
2010-01-15 06:16:18 C 04 50 38.06 +01 14 49.8 19.3 c 704
2010-01-15 06:34:34 C 04 50 37.24 +01 14 57.9 19.4 c 704
2010-02-13 04:31:18 C 04 41 18.52 +07 22 37.3 r 703
2010-02-13 04:42:04 C 04 41 18.67 +07 22 44.4 r 703
2010-02-13 04:53:02 C 04 41 18.78 +07 22 49.8 r 703
2010-02-13 05:03:59 C 04 41 18.99 +07 22 56.7 r 703
2010-02-14 03:39:38 C 04 41 37.75 +07 35 50.3 19.6 c 704
2010-02-14 03:57:11 C 04 41 37.97 +07 35 59.4 19.4 c 704
2010-02-14 04:15:28 C 04 41 38.23 +07 36 10.8 19.6 c 704
2010-02-14 04:33:04 C 04 41 38.43 +07 36 20.1 20.0 c 704
2010-02-14 04:50:43 C 04 41 38.66 +07 36 30.9 20.0 c 704
2010-02-26 04:59:05 S 04 48 44.33 +10 20 25.2 L C51
2010-02-26 08:09:37 S 04 48 50.837 +10 22 12.76 L C51
2010-02-26 11:20:19 S 04 48 57.40 +10 23 58.5 L C51
2010-02-26 14:30:50 S 04 49 04.02 +10 25 45.8 L C51
2010-02-26 17:41:21 S 04 49 10.63 +10 27 33.2 L C51
2010-02-26 19:16:42 S 04 49 13.94 +10 28 27.3 L C51
2010-02-26 20:51:52 S 04 49 17.25 +10 29 20.9 L C51
2010-02-26 22:27:13 S 04 49 20.64 +10 30 13.9 L C51
2010-02-27 00:02:34 S 04 49 24.017 +10 31 07.97 L C51
2010-02-27 01:37:44 S 04 49 27.37 +10 32 00.6 L C51
2010-02-27 04:48:15 S 04 49 34.08 +10 33 47.9 L C51
2010-02-27 06:06:08 C 04 49 36.665 +10 34 29.95 L F51
2010-02-27 06:23:29 C 04 49 37.254 +10 34 39.77 L F51
2010-02-27 07:58:57 S 04 49 40.88 +10 35 34.4 L C51
2010-02-27 11:09:28 S 04 49 47.73 +10 37 21.6 L C51
2010-03-14 02:54:32 C 05 06 05.00 +13 48 45.3 20.0 c 704
2010-03-14 03:10:33 C 05 06 05.82 +13 48 54.8 19.9 c 704
2010-03-14 03:26:34 C 05 06 06.71 +13 49 02.6 19.9 c 704
2010-03-14 03:42:49 C 05 06 07.62 +13 49 11.1 19.8 c 704
2010-05-04 03:12:44 C 06 50 35.70 +22 00 46.1 r 703
2010-05-04 03:34:50 C 06 50 38.18 +22 00 52.3 r 703
2010-05-04 03:42:17 C 06 50 38.94 +22 00 54.0 r 703
2011-10-20 09:32:42 C 04 11 20.58 -02 49 46.3 r 703
2011-10-20 09:40:00 C 04 11 20.43 -02 49 49.5 r 703
2011-10-20 09:47:20 C 04 11 20.18 -02 49 53.3 r 703
2011-10-20 09:54:35 C 04 11 20.00 -02 49 55.0 r 703
2011-10-29 13:04:54 C 04 03 02.695 -04 17 36.41 L F51
2011-10-29 13:05:48 C 04 03 02.656 -04 17 37.24 L F51
2011-10-29 13:23:20 C 04 03 01.859 -04 17 43.91 L F51
2011-10-29 13:24:15 C 04 03 01.825 -04 17 44.14 L F51
2011-10-29 13:42:35 C 04 03 01.005 -04 17 51.18 L F51
2011-10-29 13:43:27 C 04 03 00.962 -04 17 51.42 L F51
2011-10-29 13:59:59 C 04 03 00.222 -04 17 57.72 L F51