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
2025-12-28 10:16:37 C 06 33 47.044 -18 26 55.86 – X F52
2025-12-28 10:32:51 C 06 33 46.236 -18 27 11.38 – X F52
2025-12-28 10:48:57 C 06 33 45.435 -18 27 26.64 – X F52
2025-12-28 11:05:19 C 06 33 44.615 -18 27 42.11 – X F52
2025-12-28 12:43:19 C 06 33 39.754 -18 29 14.82 – V F51
2025-12-28 12:44:15 C 06 33 39.703 -18 29 15.72 – V F51
2025-12-28 13:07:55 C 06 33 39.142 -18 29 21.44 – W 474
2025-12-28 13:13:04 C 06 33 38.902 -18 29 26.38 – W 474
2025-12-28 13:18:12 C 06 33 38.652 -18 29 31.20 – W 474
2025-12-28 13:23:20 C 06 33 38.398 -18 29 35.99 – W 474
2025-12-28 13:24:02 B 06 33 38.943 -18 29 56.76 – X Q06
2025-12-28 13:34:50 B 06 33 38.373 -18 30 07.07 – X Q06
2025-12-28 18:19:29 C 06 33 25.57 -18 34 35.9 – V C97
2025-12-28 18:47:30 C 06 33 24.21 -18 35 02.9 – V C97
2025-12-28 20:38:04 B 06 33 19.298 -18 36 50.90 – Z K74
2025-12-28 21:06:43 B 06 33 17.894 -18 37 18.23 – Z K74
2025-12-28 21:25:13 C 06 33 16.98 -18 37 35.8 – V L01
2025-12-28 21:28:52 C 06 33 16.76 -18 37 39.0 – V L01
2025-12-28 21:32:32 C 06 33 16.58 -18 37 43.0 – V L01
2025-12-28 21:51:17 C 06 33 15.94 -18 38 00.1 – X 958
2025-12-28 22:08:50 B 06 33 14.967 -18 38 16.20 – X 126
2025-12-28 22:10:50 C 06 33 14.99 -18 38 17.6 – X 958
2025-12-28 22:19:28 B 06 33 14.353 -18 38 27.08 – X 126
2025-12-28 22:30:25 C 06 33 13.98 -18 38 36.6 – X 958
2025-12-28 22:45:46 B 06 33 13.02 -18 38 53.5 – X 595
2025-12-28 22:47:13 C 06 33 12.925 -18 38 55.43 – W 246
2025-12-28 22:47:35 C 06 33 12.838 -18 38 55.16 – W 246
2025-12-28 22:48:43 C 06 33 12.706 -18 38 55.92 – W 246
2025-12-28 22:49:27 B 06 33 12.82 -18 38 55.6 – X 595
2025-12-28 22:54:52 B 06 33 12.51 -18 39 01.1 – X 595
2025-12-28 23:05:40 B 06 33 12.048 -18 39 12.42 – W 204
2025-12-28 23:26:20 B 06 33 11.000 -18 39 31.63 – W 204
2025-12-28 23:36:35 C 06 33 10.47 -18 39 41.5 – V 104
2025-12-28 23:43:44 B 06 33 10.979 -18 39 31.70 – Z Y05
2025-12-28 23:58:31 B 06 33 10.253 -18 39 45.93 – Z Y05
2025-12-29 00:07:11 C 06 33 08.96 -18 40 10.7 – V 104
2025-12-29 01:53:47 C 06 33 04.900 -18 41 32.30 – V 807
2025-12-29 01:59:26 C 06 33 04.600 -18 41 37.80 – V 807
2025-12-29 02:05:03 C 06 33 04.330 -18 41 43.20 – V 807
2025-12-29 02:07:48 C 06 33 04.19 -18 41 45.9 – V W85
2025-12-29 02:09:21 C 06 33 04.12 -18 41 47.5 – V W85
2025-12-29 02:10:52 C 06 33 04.04 -18 41 48.9 – V W85
2025-12-29 02:12:23 C 06 33 03.96 -18 41 50.4 – V W85
2025-12-29 07:02:25 C 06 32 49.970 -18 46 43.40 – V 691
2025-12-29 07:07:44 C 06 32 49.690 -18 46 48.20 – V 691
2025-12-29 07:13:01 C 06 32 49.400 -18 46 53.50 – V 691
2025-12-29 08:24:52 B 06 32 46.015 -18 48 03.06 – V U52
2025-12-29 08:40:37 B 06 32 45.096 -18 48 17.71 – V U52
2025-12-29 11:55:45 C 06 32 36.62 -18 51 03.9 – V E23
2025-12-29 12:16:07 C 06 32 35.61 -18 51 23.2 – V E23