2025 YK9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7082585489 ± 2.05e-04
Semi-major axis (a)3.0627158178 AU ± 2.07e-03
Inclination (i)15.02571259° ± 2.39e-03
Long. of Asc. Node (Ω)168.70112365° ± 1.02e-02
Arg. of Perihelion (ω)12.37682176° ± 7.69e-03
Mean Anomaly (M)338.84735739° ± 2.11e-02
Mean Motion (n)0.1838875065°/day ± 1.87e-04
Perihelion dist (q)0.89352116 AU ± 8.70e-04
Aphelion dist (Q)5.23191048 AU ± 3.59e-03
Orbital Period5.35994153 yr ± 5.44e-03
Physical Parameters
H (abs. magnitude)18.79
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.296″
Uncertainty2
Orbit TypeApollo
MOID0.080623 AU
Observations Used88
Oppositions1
Arc Total2025-2026
First Observation Used2025-12-28
Last Observation Used2026-01-12
Observations (89)
Date Type RA Dec Mag Band Observatory
2025-12-29 22:14:08 B 06 32 06.75 -19 01 09.7 X M45
2025-12-29 22:22:41 B 06 32 06.32 -19 01 18.1 X M45
2025-12-29 22:31:13 B 06 32 05.87 -19 01 25.9 X M45
2025-12-30 02:11:25 C 06 31 55.990 -19 04 35.60 V 807
2025-12-30 02:17:04 C 06 31 55.690 -19 04 41.00 V 807
2025-12-30 02:22:43 C 06 31 55.390 -19 04 46.40 V 807
2026-01-02 09:32:05 C 06 27 51.084 -20 19 23.97 X F51
2026-01-02 10:03:15 C 06 27 49.222 -20 19 53.01 X F51
2026-01-02 10:18:50 C 06 27 48.271 -20 20 07.63 X F51
2026-01-06 04:50:31 C 06 22 32.560 -21 43 23.23 V I52
2026-01-06 04:54:52 C 06 22 32.257 -21 43 26.54 V I52
2026-01-06 04:59:11 C 06 22 31.962 -21 43 30.58 V I52
2026-01-06 05:05:05 C 06 22 31.559 -21 43 35.62 V I52
2026-01-07 20:07:09 B 06 20 02.906 -22 18 25.81 Z M49
2026-01-07 20:12:47 B 06 20 02.510 -22 18 31.03 Z M49
2026-01-07 20:20:57 B 06 20 01.918 -22 18 38.30 Z M49
2026-01-08 10:59:33 C 06 19 03.024 -22 31 54.98 V T05
2026-01-08 11:04:10 C 06 19 02.748 -22 31 59.12 V T05
2026-01-08 11:14:37 C 06 19 01.994 -22 32 07.80 V T05
2026-01-08 11:35:00 C 06 19 00.458 -22 32 26.56 V T05
2026-01-08 22:09:49 C 06 18 18.566 -22 41 31.02 V M22
2026-01-08 22:14:28 C 06 18 18.283 -22 41 35.05 V M22
2026-01-08 22:21:53 C 06 18 17.734 -22 41 41.28 V M22
2026-01-08 23:12:41 C 06 18 14.033 -22 42 26.06 V M22
2026-01-10 04:07:24 C 06 16 15.34 -23 07 51.1 W94
2026-01-10 04:16:19 C 06 16 14.65 -23 07 58.7 W94
2026-01-10 04:18:49 C 06 16 14.522 -23 07 57.58 V W68
2026-01-10 04:23:29 C 06 16 14.227 -23 08 03.08 V W68
2026-01-10 04:25:14 C 06 16 13.97 -23 08 06.6 W94
2026-01-10 04:30:45 C 06 16 13.634 -23 08 08.59 V W68
2026-01-10 04:44:46 C 06 16 12.588 -23 08 20.36 V W68
2026-01-10 05:42:17 B 06 16 09.409 -23 09 31.87 V U52
2026-01-10 05:46:29 B 06 16 09.143 -23 09 36.12 V U52
2026-01-11 22:10:29 C 06 13 14.851 -23 44 02.47 V M22
2026-01-11 22:15:06 C 06 13 14.537 -23 44 07.30 V M22
2026-01-11 22:22:51 C 06 13 13.874 -23 44 14.24 V M22
2026-01-11 22:36:55 C 06 13 12.775 -23 44 25.48 V M22
2026-01-12 05:36:04 B 06 12 42.810 -23 50 45.94 V U52
2026-01-12 05:40:16 B 06 12 42.471 -23 50 49.51 V U52