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
2015-10-05 08:01:22 C 23 49 18.854 -18 47 15.66 L F51
2015-10-05 11:09:24 C 23 49 10.37 -18 48 11.0 u Q60
2015-10-05 11:22:40 C 23 49 09.74 -18 48 17.5 u Q60
2015-10-05 11:35:58 C 23 49 09.11 -18 48 20.3 u Q60
2015-10-08 08:01:35 C 23 46 11.654 -19 09 04.21 L F51
2015-10-08 08:16:25 C 23 46 11.008 -19 09 08.32 L F51
2015-10-14 04:28:49 C 23 40 53.14 -19 40 30.8 q 703
2015-10-14 04:36:08 C 23 40 52.87 -19 40 32.5 q 703
2015-10-14 04:43:26 C 23 40 52.61 -19 40 32.8 q 703
2015-10-14 04:50:48 C 23 40 52.41 -19 40 33.7 q 703
2015-10-17 04:29:03 C 23 38 36.05 -19 51 09.9 R G45
2015-10-17 04:36:05 C 23 38 35.79 -19 51 10.7 R G45
2015-10-17 04:42:27 C 23 38 35.61 -19 51 11.3 R G45
2015-10-17 05:09:02 C 23 38 34.75 -19 51 15.2 R G45
2015-10-17 05:15:29 C 23 38 34.57 -19 51 14.9 R G45
2015-10-17 05:22:24 C 23 38 34.36 -19 51 16.4 R G45
2015-10-23 01:19:05 C 23 35 02.38 -20 02 04.2 u 807
2015-10-23 01:21:28 C 23 35 02.32 -20 02 04.2 u 807
2015-10-23 01:24:11 C 23 35 02.26 -20 02 04.6 u 807
2015-10-23 01:26:35 C 23 35 02.21 -20 02 04.6 u 807
2015-10-23 01:29:18 C 23 35 02.13 -20 02 04.9 u 807
2016-10-27 14:41:53 C 08 20 45.105 +05 32 36.67 L F51
2016-10-27 14:51:31 C 08 20 45.700 +05 32 33.67 L F51
2016-10-27 15:00:19 C 08 20 46.254 +05 32 30.90 L F51
2016-10-27 15:10:00 C 08 20 46.865 +05 32 27.85 L F51
2016-11-09 10:51:58 C 08 39 46.01 +03 54 15.2 q 703
2016-11-09 11:00:37 C 08 39 46.47 +03 54 12.7 q 703
2016-11-09 11:09:17 C 08 39 46.95 +03 54 08.2 q 703
2016-11-09 11:17:56 C 08 39 47.53 +03 54 06.5 q 703
2016-11-10 19:49:32 C 08 41 42.84 +03 43 39.2 q D29
2016-11-10 20:09:54 C 08 41 43.96 +03 43 33.1 q D29
2016-11-23 08:57:28 C 08 58 37.40 +02 08 53.6 V G45
2016-11-23 09:56:12 C 08 58 40.45 +02 08 36.4 V G45
2016-11-23 10:55:53 C 08 58 43.53 +02 08 17.5 V G45
2016-11-23 11:54:50 C 08 58 46.58 +02 07 59.9 V G45
2016-11-24 08:09:03 C 08 59 51.14 +02 01 52.5 V G45
2016-11-24 09:06:47 C 08 59 54.13 +02 01 34.6 V G45
2016-11-24 10:05:42 C 08 59 57.15 +02 01 16.6 V G45
2016-11-24 11:05:51 C 09 00 00.22 +02 00 59.0 V G45
2016-11-24 12:04:39 C 09 00 03.22 +02 00 41.0 V G45
2016-11-30 19:58:22 C 09 07 46.67 +01 16 32.0 q D29
2016-11-30 20:23:50 C 09 07 47.85 +01 16 25.0 q D29
2016-11-30 20:49:18 C 09 07 49.06 +01 16 17.9 q D29
2016-12-02 09:31:07 C 09 09 36.01 +01 06 11.8 q 850
2016-12-02 09:56:10 C 09 09 37.15 +01 06 05.1 q 850
2016-12-02 10:18:50 C 09 09 38.10 +01 05 58.6 q 850
2016-12-05 07:03:08 C 09 12 52.95 +00 47 50.5 R G45
2016-12-05 07:10:05 C 09 12 53.28 +00 47 48.8 R G45
2016-12-05 07:18:12 C 09 12 53.65 +00 47 46.7 R G45
2016-12-05 07:26:07 C 09 12 54.00 +00 47 44.5 R G45