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
2016-12-05 07:33:04 C 09 12 54.31 +00 47 42.8 R G45
2016-12-05 07:39:58 C 09 12 54.63 +00 47 41.0 R G45
2016-12-10 10:08:06 C 09 18 21.15 +00 18 15.4 V G45
2016-12-10 10:59:19 C 09 18 23.22 +00 18 04.2 V G45
2016-12-10 11:51:30 C 09 18 25.35 +00 17 52.5 V G45
2016-12-10 12:43:25 C 09 18 27.45 +00 17 41.0 V G45
2016-12-12 09:53:40 C 09 20 21.49 +00 07 58.3 V G45
2016-12-12 10:48:05 C 09 20 23.67 +00 07 46.7 V G45
2016-12-12 11:37:55 C 09 20 25.55 +00 07 36.6 V G45
2016-12-12 12:30:16 C 09 20 27.58 +00 07 25.9 V G45
2016-12-13 01:46:19 C 09 21 00.46 +00 04 42.4 q 160
2016-12-13 01:49:19 C 09 21 00.66 +00 04 41.4 q 160
2016-12-13 01:53:04 C 09 21 00.83 +00 04 40.5 q 160
2016-12-16 03:35:40 C 09 23 55.63 -00 09 13.0 q 160
2016-12-16 03:38:39 C 09 23 55.72 -00 09 13.2 q 160
2016-12-16 03:41:38 C 09 23 55.88 -00 09 13.0 q 160
2016-12-22 14:31:20 C 09 29 26.48 -00 30 44.0 L T05
2016-12-22 14:36:30 C 09 29 26.59 -00 30 46.9 L T05
2016-12-22 15:08:54 C 09 29 27.59 -00 30 50.0 L T05
2016-12-22 15:23:41 C 09 29 28.12 -00 30 52.6 L T05
2016-12-23 01:39:35 C 09 29 48.45 -00 31 54.9 q 160
2016-12-23 01:42:37 C 09 29 48.53 -00 31 55.3 q 160
2016-12-23 01:45:39 C 09 29 48.66 -00 31 55.5 q 160
2016-12-24 02:44:56 C 09 30 36.05 -00 34 06.2 q 160
2016-12-24 02:47:17 C 09 30 36.11 -00 34 06.6 q 160
2016-12-24 02:49:38 C 09 30 36.19 -00 34 07.0 q 160
2016-12-28 07:48:14 C 09 33 32.78 -00 38 59.1 R G45
2016-12-28 07:55:02 C 09 33 32.94 -00 38 59.6 R G45
2016-12-28 08:08:38 C 09 33 33.29 -00 38 59.4 R G45
2016-12-28 08:15:31 C 09 33 33.47 -00 38 59.9 R G45
2016-12-28 08:22:27 C 09 33 33.63 -00 39 00.0 R G45
2016-12-30 09:12:06 C 09 34 48.95 -00 38 50.4 R G45
2016-12-30 09:19:12 C 09 34 49.11 -00 38 50.0 R G45
2016-12-30 09:26:21 C 09 34 49.28 -00 38 50.0 R G45
2016-12-30 09:33:38 C 09 34 49.41 -00 38 49.8 R G45
2016-12-30 09:40:47 C 09 34 49.57 -00 38 49.8 R G45
2017-01-01 02:26:32 C 09 35 47.34 -00 37 17.8 q 160
2017-01-01 02:29:31 C 09 35 47.40 -00 37 17.6 q 160
2017-01-01 02:32:20 C 09 35 47.47 -00 37 17.3 q 160
2017-01-03 13:28:47 C 09 37 02.70 -00 32 30.3 L T05
2017-01-03 13:52:01 C 09 37 03.09 -00 32 27.8 L T05
2017-01-03 14:03:00 C 09 37 03.28 -00 32 26.2 L T05
2017-01-03 14:31:11 C 09 37 03.75 -00 32 23.9 L T05
2017-01-04 01:43:14 C 09 37 17.17 -00 31 12.4 q 160
2017-01-04 01:45:22 C 09 37 17.20 -00 31 12.1 q 160
2017-01-04 01:47:17 C 09 37 17.24 -00 31 11.9 q 160
2017-01-07 00:48:48 C 09 38 31.67 -00 20 24.2 q 160
2017-01-07 00:50:45 C 09 38 31.66 -00 20 24.0 q 160
2017-01-08 08:29:38 C 09 38 59.88 -00 13 53.7 q 703
2017-01-08 08:36:29 C 09 38 59.95 -00 13 51.9 q 703