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
2017-02-10 05:43:25 C 09 31 12.12 +11 10 34.8 u H21
2017-02-13 04:37:19 C 09 28 44.61 +13 17 35.0 u H21
2017-02-13 04:39:17 C 09 28 44.53 +13 17 38.6 u H21
2017-02-13 04:41:14 C 09 28 44.45 +13 17 42.3 u H21
2017-02-13 04:43:11 C 09 28 44.37 +13 17 45.9 u H21
2017-02-13 04:45:08 C 09 28 44.27 +13 17 49.6 u H21
2017-02-13 04:47:05 C 09 28 44.20 +13 17 53.3 u H21
2017-02-13 04:49:02 C 09 28 44.12 +13 17 57.0 u H21
2017-02-13 04:50:59 C 09 28 44.04 +13 18 00.7 u H21
2017-02-13 04:52:56 C 09 28 43.95 +13 18 04.4 u H21
2017-02-13 04:56:03 C 09 28 43.82 +13 18 10.2 u H21
2017-02-13 15:57:46 C 09 28 19.43 +13 39 02.3 q D29
2017-02-13 15:58:42 C 09 28 19.40 +13 39 04.4 q D29
2017-02-13 16:20:18 C 09 28 18.46 +13 39 45.2 q D29
2017-02-13 16:21:15 C 09 28 18.43 +13 39 47.2 q D29
2017-02-13 16:42:51 C 09 28 17.49 +13 40 28.0 q D29
2017-02-13 16:43:47 C 09 28 17.46 +13 40 30.0 q D29
2017-02-14 21:59:34 C 09 27 12.77 +14 37 03.9 u 108
2017-02-14 22:02:52 C 09 27 12.62 +14 37 10.1 u 108
2017-02-14 22:06:09 C 09 27 12.49 +14 37 16.6 u 108
2017-02-14 22:08:21 C 09 27 12.40 +14 37 20.9 u 108
2017-02-14 22:59:53 C 09 27 10.14 +14 39 02.4 q 160
2017-02-14 23:02:13 C 09 27 10.01 +14 39 06.7 q 160
2017-02-14 23:04:33 C 09 27 09.91 +14 39 11.7 q 160
2017-02-15 22:57:44 C 09 26 15.33 +15 26 53.4 q 160
2017-02-15 23:00:16 C 09 26 15.23 +15 26 58.6 q 160
2017-02-15 23:02:46 C 09 26 15.11 +15 27 03.6 q 160
2017-02-16 04:40:13 C 09 26 02.57 +15 38 31.4 q H45
2017-02-16 04:41:48 C 09 26 02.50 +15 38 34.6 q H45
2017-02-16 04:43:08 C 09 26 02.44 +15 38 37.3 q H45
2017-02-16 04:44:21 C 09 26 02.38 +15 38 39.8 q H45
2017-02-16 04:45:14 C 09 26 02.35 +15 38 41.6 q H45
2017-02-16 04:46:24 C 09 26 02.29 +15 38 44.0 q H45
2017-02-16 16:35:30 C 09 25 34.41 +16 02 49.5 o C94
2017-02-16 16:47:10 C 09 25 33.89 +16 03 13.7 o C94
2017-02-16 17:02:28 C 09 25 33.23 +16 03 45.0 o C94
2017-02-17 09:56:25 C 09 24 53.56 +16 39 05.7 L T05
2017-02-17 10:23:33 C 09 24 52.28 +16 40 02.6 L T05
2017-02-17 10:54:01 C 09 24 50.85 +16 41 06.3 L T05
2017-02-17 11:02:37 C 09 24 50.45 +16 41 24.3 L T05
2017-02-17 11:25:16 C 09 24 49.39 +16 42 11.6 L T05
2017-02-18 16:23:05 C 09 23 40.99 +17 43 35.5 o C94
2017-02-18 16:23:26 C 09 23 40.57 +17 43 44.3 q D29
2017-02-18 16:44:55 C 09 23 40.01 +17 44 22.7 o C94
2017-02-18 16:50:10 C 09 23 39.32 +17 44 41.8 q D29
2017-02-18 17:16:54 C 09 23 38.07 +17 45 39.1 q D29
2017-02-18 23:01:03 C 09 23 24.87 +17 57 59.3 q 160
2017-02-18 23:03:12 C 09 23 24.77 +17 58 04.0 q 160
2017-02-18 23:05:21 C 09 23 24.68 +17 58 08.4 q 160
2017-02-19 10:10:41 C 09 22 57.81 +18 22 29.3 L T08