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
2017-09-21 07:43:18 C 19 21 35.45 -21 52 57.9 L T05
2017-10-17 01:52:43 C 20 13 19.05 -23 28 30.4 U 703
2017-10-17 01:59:56 C 20 13 19.70 -23 28 29.1 U 703
2017-10-17 02:14:22 C 20 13 20.84 -23 28 29.8 U 703
2017-12-12 05:04:47 C 22 03 17.262 -19 00 56.74 U F51
2017-12-12 05:11:38 C 22 03 17.792 -19 00 54.33 U F51
2017-12-12 05:18:29 C 22 03 18.330 -19 00 51.95 U F51
2017-12-12 05:25:21 C 22 03 18.860 -19 00 49.63 U F51
2018-09-11 10:59:51 C 05 32 07.30 +07 09 21.0 G96
2018-09-11 11:07:16 C 05 32 07.54 +07 09 19.7 G96
2018-09-11 11:14:40 C 05 32 07.89 +07 09 17.7 G96
2018-10-04 14:17:08 C 05 51 38.491 +04 51 51.38 U F52
2018-10-04 14:33:11 C 05 51 38.876 +04 51 46.76 U F52
2018-10-04 14:49:15 C 05 51 39.258 +04 51 42.21 U F52
2018-10-04 15:05:20 C 05 51 39.647 +04 51 37.45 U F52
2018-11-02 14:45:23 C 05 57 08.920 +01 07 52.31 U F52
2018-11-02 15:03:47 C 05 57 08.676 +01 07 46.17 U F52
2018-11-03 10:18:09 C 05 56 54.28 +01 01 22.5 V G96
2018-11-03 10:39:03 C 05 56 53.97 +01 01 15.7 V G96
2018-11-03 10:46:30 C 05 56 53.85 +01 01 12.9 V G96
2018-11-03 10:53:59 C 05 56 53.74 +01 01 10.6 V G96
2018-11-12 10:02:57 C 05 52 30.86 -00 07 44.4 V G96
2018-11-12 10:10:18 C 05 52 30.64 -00 07 46.7 V G96
2018-11-12 10:17:40 C 05 52 30.44 -00 07 49.1 V G96
2018-11-12 10:25:01 C 05 52 30.22 -00 07 51.2 V G96
2018-11-28 10:14:43 C 05 37 13.92 -01 45 38.2 V 703
2018-11-28 10:21:41 C 05 37 13.57 -01 45 40.3 V 703
2018-11-28 10:28:39 C 05 37 13.16 -01 45 41.1 V 703
2018-11-28 10:35:37 C 05 37 12.84 -01 45 41.0 V 703
2018-11-28 12:36:05 C 05 37 06.73 -01 46 03.4 U T05
2018-11-28 12:50:18 C 05 37 05.99 -01 46 05.8 U T05
2018-11-28 13:04:50 C 05 37 05.20 -01 46 08.4 U T05
2018-11-28 13:19:15 C 05 37 04.37 -01 46 11.8 U T05
2018-12-06 11:04:22 C 05 26 29.85 -02 12 57.0 U T05
2018-12-06 11:17:16 C 05 26 29.04 -02 12 58.9 U T05
2018-12-06 11:29:27 C 05 26 28.31 -02 12 59.5 U T05
2018-12-06 11:42:17 C 05 26 27.59 -02 12 59.8 U T05
2018-12-14 06:41:49 C 05 14 52.72 -02 19 53.3 V 703
2018-12-14 06:49:23 C 05 14 52.26 -02 19 53.0 V 703
2018-12-14 06:56:57 C 05 14 51.72 -02 19 52.9 V 703
2018-12-14 07:04:30 C 05 14 51.26 -02 19 53.2 V 703
2018-12-17 14:11:19 C 05 09 49.20 -02 16 18.5 q D29
2018-12-17 14:31:42 C 05 09 47.85 -02 16 17.0 q D29
2018-12-17 14:52:03 C 05 09 46.52 -02 16 15.4 q D29
2019-01-03 09:28:08 C 04 45 52.90 -00 58 09.7 V T05
2019-01-03 09:40:41 C 04 45 52.26 -00 58 04.9 V T05
2019-01-03 09:52:29 C 04 45 51.58 -00 58 01.6 V T05
2019-01-03 10:05:13 C 04 45 50.94 -00 57 57.5 V T05
2019-01-07 09:14:58 C 04 41 11.93 -00 26 11.0 V T05
2019-01-07 09:27:24 C 04 41 11.25 -00 26 06.8 V T05