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
2017-02-19 10:28:05 C 09 22 56.98 +18 23 07.1 L T08
2017-02-19 10:45:36 C 09 22 56.14 +18 23 45.2 L T08
2017-02-19 11:02:46 C 09 22 55.31 +18 24 22.8 L T08
2017-02-19 21:15:44 C 09 22 31.63 +18 46 40.2 q 108
2017-02-19 21:20:11 C 09 22 31.43 +18 46 50.0 q 108
2017-02-19 21:24:38 C 09 22 31.23 +18 47 00.0 q 108
2017-02-21 06:14:33 C 09 21 10.85 +20 00 31.9 q 703
2017-02-21 06:22:32 C 09 21 10.47 +20 00 49.9 q 703
2017-02-21 06:30:30 C 09 21 10.08 +20 01 08.0 q 703
2017-02-21 10:08:43 C 09 21 00.91 +20 09 29.1 L T05
2017-02-21 10:12:50 C 09 21 00.69 +20 09 39.0 L T08
2017-02-21 10:28:24 C 09 20 59.95 +20 10 13.7 L T05
2017-02-21 10:30:02 C 09 20 59.84 +20 10 18.0 L T08
2017-02-21 10:47:04 C 09 20 59.03 +20 10 56.5 L T08
2017-02-21 11:04:55 C 09 20 58.17 +20 11 36.2 L T05
2017-02-21 11:04:57 C 09 20 58.16 +20 11 36.9 L T08
2017-02-21 11:22:17 C 09 20 57.34 +20 12 15.4 L T05
2017-02-21 11:41:26 C 09 20 56.42 +20 12 58.6 L T05
2017-02-22 06:43:50 C 09 20 12.027 +20 56 31.68 L F51
2017-02-22 07:03:22 C 09 20 11.112 +20 57 17.11 L F51
2017-02-22 08:15:39 C 09 20 07.642 +21 00 05.05 L F51
2017-02-23 09:43:53 C 09 19 04.53 +21 59 16.0 L T08
2017-02-23 10:01:50 C 09 19 03.65 +21 59 58.0 L T08
2017-02-23 10:19:25 C 09 19 02.78 +22 00 39.0 L T08
2017-02-23 10:37:32 C 09 19 01.90 +22 01 21.1 L T08
2017-02-24 01:37:33 C 09 18 26.98 +22 36 29.9 q W46
2017-02-24 02:20:43 C 09 18 24.97 +22 38 13.1 q W46
2017-02-24 04:49:47 C 09 18 18.29 +22 44 04.1 q H45
2017-02-24 04:51:01 C 09 18 18.24 +22 44 06.9 q H45
2017-02-24 04:52:08 C 09 18 18.18 +22 44 09.8 q H45
2017-02-24 04:53:03 C 09 18 18.14 +22 44 11.8 q H45
2017-02-24 04:54:01 C 09 18 18.10 +22 44 14.1 q H45
2017-02-24 04:54:58 C 09 18 18.05 +22 44 16.4 q H45
2017-02-24 07:33:57 C 09 18 10.82 +22 50 32.8 R G45
2017-02-24 07:41:55 C 09 18 10.46 +22 50 51.4 R G45
2017-02-24 07:49:56 C 09 18 10.06 +22 51 10.2 R G45
2017-02-24 07:58:03 C 09 18 09.67 +22 51 29.4 R G45
2017-02-24 21:02:40 n 09 17 39.58 +23 22 25.9 q Z43
2017-02-24 21:57:01 n 09 17 37.04 +23 24 36.5 q Z43
2017-02-24 22:28:49 n 09 17 35.58 +23 25 51.9 q Z43
2017-02-25 01:23:09 C 09 17 29.46 +23 32 54.2 q W46
2017-02-25 02:01:58 C 09 17 27.66 +23 34 28.2 q W46
2017-02-25 02:35:45 C 09 17 26.78 +23 35 45.6 R G45
2017-02-25 02:35:52 C 09 17 26.07 +23 35 50.1 q W46
2017-02-25 02:42:57 C 09 17 26.44 +23 36 02.9 R G45
2017-02-25 02:50:09 C 09 17 26.13 +23 36 20.5 R G45
2017-02-25 02:56:59 C 09 17 25.82 +23 36 37.1 R G45
2017-02-25 02:57:05 C 09 17 25.80 +23 36 37.2 R G45
2017-02-25 07:46:56 C 09 17 11.78 +23 48 10.6 q H45
2017-02-25 07:47:53 C 09 17 11.73 +23 48 13.0 q H45