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
2020-11-16 08:02:42 C 03 26 08.19 -07 18 28.3 U I41
2020-11-17 07:47:08 C 03 24 48.79 -07 22 49.4 V 703
2020-11-17 07:54:41 C 03 24 48.29 -07 22 50.1 V 703
2020-11-17 08:02:13 C 03 24 47.94 -07 22 52.7 V 703
2020-11-17 08:09:45 C 03 24 47.47 -07 22 52.8 V 703
2020-11-18 06:30:08 C 03 23 33.14 -07 26 41.7 U I41
2020-11-18 07:20:19 C 03 23 30.26 -07 26 49.8 U I41
2020-11-18 07:47:01 C 03 23 28.74 -07 26 54.1 U I41
2020-11-18 07:49:36 C 03 23 28.58 -07 26 54.4 V G96
2020-11-18 07:57:02 C 03 23 28.17 -07 26 55.8 V G96
2020-11-18 08:04:29 C 03 23 27.74 -07 26 57.0 V G96
2020-11-18 08:11:55 C 03 23 27.32 -07 26 58.2 V G96
2020-11-19 09:00:22 C 03 22 05.02 -07 30 48.7 V T08
2020-11-19 09:05:01 C 03 22 04.79 -07 30 50.0 V T08
2020-11-19 09:12:22 C 03 22 04.37 -07 30 51.3 V T08
2020-11-19 09:21:40 C 03 22 03.81 -07 30 52.3 V T08
2020-11-20 07:10:06 C 03 20 51.63 -07 34 00.7 V 703
2020-11-20 07:17:37 C 03 20 51.13 -07 34 00.7 V 703
2020-11-20 07:32:38 C 03 20 50.31 -07 34 02.9 V 703
2020-12-02 02:40:03 C 03 06 09.60 -07 49 11.6 U I41
2020-12-02 03:59:29 C 03 06 05.73 -07 49 09.4 U I41
2020-12-02 09:03:37 C 03 05 50.92 -07 49 00.1 U I41
2020-12-04 05:55:08 C 03 03 46.57 -07 47 01.0 U I41
2020-12-04 06:56:11 C 03 03 43.70 -07 46 57.8 U I41
2020-12-07 07:59:45 C 03 00 32.246 -07 41 18.00 U F51
2020-12-07 08:20:07 C 03 00 31.357 -07 41 15.99 U F51
2020-12-07 09:00:12 C 03 00 29.609 -07 41 12.10 U F51
2020-12-08 05:59:10 C 02 59 37.38 -07 39 03.7 V G96
2020-12-08 06:08:34 C 02 59 36.99 -07 39 02.6 V G96
2020-12-08 06:23:27 C 02 59 36.27 -07 39 01.2 V G96
2020-12-10 04:29:48 C 02 57 46.34 -07 33 27.6 U I41
2020-12-10 05:05:46 C 02 57 44.90 -07 33 22.9 U I41
2020-12-10 06:11:46 C 02 57 42.24 -07 33 14.1 U I41
2020-12-10 07:39:31 C 02 57 38.73 -07 33 02.4 U I41
2020-12-11 06:14:30 C 02 56 47.696 -07 29 52.02 U F52
2020-12-11 06:32:08 C 02 56 47.008 -07 29 49.60 U F52
2020-12-11 06:49:52 C 02 56 46.320 -07 29 46.95 U F52
2020-12-11 07:07:34 C 02 56 45.637 -07 29 44.51 U F52
2020-12-11 08:42:31 C 02 56 41.946 -07 29 30.50 U F51
2020-12-11 08:59:49 C 02 56 41.278 -07 29 28.00 U F51
2020-12-11 09:17:08 C 02 56 40.612 -07 29 25.46 U F51
2020-12-12 04:35:57 C 02 55 58.26 -07 26 30.9 U I41
2020-12-12 05:59:40 C 02 55 55.09 -07 26 18.3 U I41
2020-12-12 06:05:04 C 02 55 54.92 -07 26 17.1 U I41
2020-12-12 06:09:08 C 02 55 54.77 -07 26 16.4 U I41
2020-12-22 02:31:15 C 02 48 56.53 -06 36 30.4 V G96
2020-12-22 02:39:22 C 02 48 56.33 -06 36 28.3 V G96
2020-12-22 02:47:29 C 02 48 56.15 -06 36 26.0 V G96
2020-12-22 02:55:36 C 02 48 55.93 -06 36 23.8 V G96
2021-01-09 06:25:35 C 02 44 30.680 -04 13 41.46 U F52