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
2022-10-21 05:07:26 C 01 51 35.923 -12 18 29.84 V W68
2022-10-21 05:39:29 C 01 51 34.214 -12 18 40.86 V W68
2022-10-23 22:17:17 C 01 48 08.998 -12 40 09.30 V M22
2022-10-23 22:35:33 C 01 48 08.052 -12 40 14.34 V M22
2022-10-23 22:40:00 C 01 48 07.745 -12 40 16.54 V M22
2022-10-23 22:48:07 C 01 48 07.356 -12 40 18.98 V M22
2022-10-25 06:55:40 C 01 46 26.274 -12 50 12.30 V 703
2022-10-25 07:18:42 C 01 46 25.111 -12 50 17.52 V 703
2022-10-30 09:43:34 C 01 40 10.147 -13 21 31.21 V T08
2022-10-30 09:51:34 C 01 40 09.787 -13 21 33.52 V T08
2022-10-30 09:55:34 C 01 40 09.566 -13 21 34.34 V T08
2022-10-30 10:17:39 C 01 40 08.417 -13 21 39.13 V T08
2022-11-16 05:03:31 C 01 23 13.124 -13 58 41.84 V 703
2022-11-16 05:11:10 C 01 23 12.898 -13 58 40.26 V 703
2022-11-16 05:18:49 C 01 23 12.588 -13 58 41.02 V 703
2022-11-16 05:26:28 C 01 23 12.318 -13 58 40.01 V 703
2022-11-18 03:42:13 C 01 21 44.615 -13 56 51.22 V G96
2022-11-18 03:49:49 C 01 21 44.359 -13 56 50.68 V G96
2022-11-18 03:57:25 C 01 21 44.132 -13 56 50.28 V G96
2022-11-18 04:05:00 C 01 21 43.902 -13 56 50.10 V G96
2022-11-19 07:38:16 C 01 20 54.742 -13 55 11.37 U F52
2022-11-19 07:54:57 C 01 20 54.239 -13 55 10.19 U F52
2022-11-19 08:11:39 C 01 20 53.723 -13 55 09.02 U F52
2022-11-21 06:01:15 C 01 19 37.477 -13 51 34.20 V G96
2022-11-21 06:08:41 C 01 19 37.279 -13 51 33.19 V G96
2022-11-21 06:16:06 C 01 19 37.045 -13 51 32.72 V G96
2022-11-21 06:23:31 C 01 19 36.851 -13 51 31.90 V G96
2023-10-15 11:53:38 C 10 07 36.426 +06 34 13.62 V G96
2023-10-15 12:01:55 C 10 07 37.405 +06 34 10.06 V G96
2023-10-15 12:18:29 C 10 07 39.320 +06 34 03.14 V G96
2023-11-05 12:21:31 C 11 09 42.246 +02 33 37.55 V 703
2023-11-05 12:28:06 C 11 09 43.168 +02 33 33.95 V 703
2023-11-05 12:34:42 C 11 09 44.010 +02 33 32.00 V 703
2023-11-05 12:41:17 C 11 09 44.924 +02 33 28.58 V 703
2023-11-19 22:04:22 C 11 56 40.91 -00 28 46.0 V O18
2023-11-19 22:10:20 C 11 56 41.76 -00 28 49.2 V O18
2023-12-13 11:51:09 C 13 23 38.648 -05 30 48.31 V 703
2023-12-13 11:54:05 C 13 23 39.080 -05 30 51.01 V 703
2023-12-13 11:57:01 C 13 23 39.628 -05 30 51.66 V 703
2023-12-13 11:59:56 C 13 23 40.178 -05 30 53.21 V 703
2023-12-17 12:55:43 C 13 39 56.758 -06 19 18.34 V 703
2023-12-17 12:59:03 C 13 39 57.380 -06 19 19.24 V 703
2023-12-17 13:05:44 C 13 39 58.450 -06 19 22.15 V 703
2023-12-30 15:06:40 C 14 35 20.350 -08 39 40.82 V T05
2023-12-30 15:11:29 C 14 35 21.305 -08 39 42.52 V T05
2023-12-30 15:42:34 C 14 35 26.923 -08 39 55.01 V T05
2023-12-30 15:57:01 C 14 35 29.561 -08 40 01.06 V T05
2024-01-03 12:52:27 C 14 52 33.546 -09 15 10.84 V 703
2024-01-03 12:58:21 C 14 52 34.619 -09 15 11.63 V 703
2024-01-03 13:04:14 C 14 52 35.713 -09 15 14.65 V 703