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
2017-03-07 19:14:07 C 09 08 31.20 +34 05 53.4 q 160
2017-03-07 19:16:10 C 09 08 31.12 +34 05 58.5 q 160
2017-03-07 19:57:24 C 09 08 29.78 +34 07 41.0 u 108
2017-03-07 20:01:51 C 09 08 29.61 +34 07 50.9 u 108
2017-03-07 20:06:14 C 09 08 29.47 +34 08 02.6 u 108
2017-03-07 20:09:35 C 09 08 29.39 +34 08 10.8 u 108
2017-03-08 07:56:27 C 09 08 09.00 +34 37 01.7 q H45
2017-03-08 07:57:39 C 09 08 08.97 +34 37 04.5 q H45
2017-03-08 07:58:53 C 09 08 08.94 +34 37 07.5 q H45
2017-03-08 08:00:09 C 09 08 08.90 +34 37 10.5 q H45
2017-03-08 08:01:15 C 09 08 08.86 +34 37 13.2 q H45
2017-03-08 08:02:14 C 09 08 08.84 +34 37 15.5 q H45
2017-03-08 21:12:09 C 09 07 51.32 +35 09 26.9 q 160
2017-03-08 21:14:23 C 09 07 51.24 +35 09 32.3 q 160
2017-03-08 21:16:36 C 09 07 51.12 +35 09 38.3 q 160
2017-03-09 03:51:34 C 09 07 41.92 +35 25 42.4 u H21
2017-03-09 03:53:31 C 09 07 41.86 +35 25 47.3 u H21
2017-03-09 03:55:29 C 09 07 41.80 +35 25 52.0 u H21
2017-03-09 03:57:27 C 09 07 41.74 +35 25 56.8 u H21
2017-03-09 03:59:24 C 09 07 41.67 +35 26 01.5 u H21
2017-03-09 04:01:22 C 09 07 41.61 +35 26 06.2 u H21
2017-03-09 04:03:19 C 09 07 41.55 +35 26 11.1 u H21
2017-03-09 04:05:17 C 09 07 41.50 +35 26 15.7 u H21
2017-03-09 04:07:15 C 09 07 41.42 +35 26 20.6 u H21
2017-03-09 04:09:12 C 09 07 41.36 +35 26 25.3 u H21
2017-03-09 04:11:10 C 09 07 41.31 +35 26 30.0 u H21
2017-03-09 04:13:07 C 09 07 41.24 +35 26 34.7 u H21
2017-03-09 04:15:05 C 09 07 41.19 +35 26 39.7 u H21
2017-03-09 04:17:03 C 09 07 41.12 +35 26 44.3 u H21
2017-03-09 04:18:54 C 09 07 41.07 +35 26 48.8 u H21
2017-03-09 19:49:22 C 09 07 21.16 +36 04 25.3 q 107
2017-03-09 19:53:17 C 09 07 21.06 +36 04 34.8 q 107
2017-03-09 19:57:50 C 09 07 20.92 +36 04 45.9 q 107
2017-03-09 20:03:41 C 09 07 20.76 +36 05 00.2 q 107
2017-03-10 22:31:02 C 09 06 47.62 +37 08 50.0 q 160
2017-03-10 22:32:55 C 09 06 47.56 +37 08 54.6 q 160
2017-03-10 22:35:02 C 09 06 47.48 +37 08 59.4 q 160
2017-03-11 04:13:59 C 09 06 41.84 +37 22 38.0 q H45
2017-03-11 04:15:16 C 09 06 41.83 +37 22 41.4 q H45
2017-03-11 04:16:20 C 09 06 41.77 +37 22 43.7 q H45
2017-03-11 04:17:55 C 09 06 41.72 +37 22 47.6 q H45
2017-03-11 04:18:59 C 09 06 41.70 +37 22 50.2 q H45
2017-03-11 04:21:25 C 09 06 41.61 +37 22 55.8 q H45
2017-03-11 19:39:42 C 09 06 26.57 +37 59 21.6 q G34
2017-03-11 19:43:56 C 09 06 26.46 +37 59 31.8 q G34
2017-03-11 19:48:10 C 09 06 26.38 +37 59 41.9 q G34
2017-03-11 20:50:21 C 09 06 24.78 +38 02 16.4 q K73
2017-03-11 21:21:33 C 09 06 23.99 +38 03 30.5 q K73
2017-03-12 20:45:10 C 09 06 03.56 +38 58 55.7 q K73
2017-03-12 21:00:30 C 09 06 03.20 +38 59 31.9 q K73