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
2017-01-08 09:28:02 C 09 39 00.48 -00 13 40.5 q 703
2017-01-08 09:37:59 C 09 39 00.59 -00 13 38.5 q 703
2017-01-10 01:04:16 C 09 39 31.05 -00 03 59.8 q 160
2017-01-10 01:06:19 C 09 39 31.06 -00 03 59.3 q 160
2017-01-10 01:08:15 C 09 39 31.08 -00 03 59.1 q 160
2017-01-23 13:01:43 C 09 40 13.86 +02 35 52.8 L T05
2017-01-23 13:26:04 C 09 40 13.55 +02 36 11.2 L T05
2017-01-23 13:54:52 C 09 40 13.21 +02 36 33.0 L T05
2017-01-23 14:05:13 C 09 40 13.06 +02 36 40.9 L T05
2017-01-25 06:48:44 C 09 39 51.23 +03 09 06.3 R G45
2017-01-25 07:02:15 C 09 39 51.03 +03 09 17.6 R G45
2017-01-25 07:09:23 C 09 39 50.92 +03 09 23.6 R G45
2017-01-25 07:10:18 C 09 39 50.91 +03 09 24.4 R G45
2017-01-25 07:16:44 C 09 39 50.82 +03 09 29.6 R G45
2017-01-25 07:24:18 C 09 39 50.70 +03 09 36.0 R G45
2017-01-26 03:13:56 C 09 39 36.30 +03 26 33.8 q 160
2017-01-26 03:15:53 C 09 39 36.27 +03 26 35.5 q 160
2017-01-26 03:17:51 C 09 39 36.26 +03 26 37.2 q 160
2017-01-27 02:34:10 C 09 39 18.46 +03 47 35.9 q 160
2017-01-27 02:36:06 C 09 39 18.44 +03 47 37.6 q 160
2017-01-27 02:38:05 C 09 39 18.40 +03 47 39.4 q 160
2017-01-27 04:49:20 C 09 39 17.94 +03 49 43.7 R G45
2017-01-27 04:56:14 C 09 39 17.83 +03 49 50.1 R G45
2017-01-27 05:03:02 C 09 39 17.71 +03 49 56.5 R G45
2017-01-27 05:16:39 C 09 39 17.48 +03 50 09.2 R G45
2017-01-27 12:47:45 C 09 39 10.05 +03 57 16.4 L T05
2017-01-27 13:38:34 C 09 39 09.09 +03 58 04.5 L T05
2017-01-27 14:05:32 C 09 39 08.58 +03 58 30.0 L T05
2017-01-27 14:27:51 C 09 39 08.16 +03 58 51.1 L T05
2017-01-27 16:06:29 C 09 39 07.53 +04 00 21.0 q Q11
2017-01-27 16:10:32 C 09 39 07.46 +04 00 25.0 q Q11
2017-01-27 16:14:37 C 09 39 07.39 +04 00 28.9 q Q11
2017-01-28 09:19:39 C 09 38 51.83 +04 17 05.3 q G96
2017-01-28 09:25:53 C 09 38 51.71 +04 17 11.6 q G96
2017-01-28 09:32:11 C 09 38 51.58 +04 17 17.9 q G96
2017-01-28 09:38:24 C 09 38 51.45 +04 17 24.0 q G96
2017-01-29 12:06:05 C 09 38 24.72 +04 44 19.9 V G45
2017-01-29 12:19:58 C 09 38 24.45 +04 44 34.4 V G45
2017-01-29 12:32:40 C 09 38 24.20 +04 44 47.6 V G45
2017-01-29 12:43:39 C 09 38 24.00 +04 44 59.1 V G45
2017-01-29 12:52:28 C 09 38 23.78 +04 45 08.5 V G45
2017-01-29 13:00:32 C 09 38 23.67 +04 45 16.7 V G45
2017-01-29 21:23:04 C 09 38 16.50 +04 54 05.9 u 107
2017-01-29 21:29:27 C 09 38 16.37 +04 54 12.8 u 107
2017-01-29 21:36:56 C 09 38 16.21 +04 54 20.9 u 107
2017-01-30 02:25:05 C 09 38 09.89 +04 59 30.2 q 160
2017-01-30 02:26:57 C 09 38 09.86 +04 59 32.2 q 160
2017-01-30 02:28:49 C 09 38 09.81 +04 59 34.2 q 160
2017-01-30 12:20:49 C 09 37 58.38 +05 10 21.5 V G45
2017-01-30 12:32:40 C 09 37 58.13 +05 10 34.4 V G45