2025 YS9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2931101749 ± 1.36e-04
Semi-major axis (a)0.9679490450 AU ± 5.16e-05
Inclination (i)13.95907413° ± 7.77e-03
Long. of Asc. Node (Ω)98.57710184° ± 2.12e-05
Arg. of Perihelion (ω)115.51024495° ± 3.46e-03
Mean Anomaly (M)236.72880764° ± 2.38e-02
Mean Motion (n)1.0349837536°/day ± 8.27e-05
Perihelion dist (q)0.68423333 AU ± 1.37e-04
Aphelion dist (Q)1.25166476 AU ± 1.48e-04
Orbital Period0.95231087 yr ± 7.61e-05
Physical Parameters
H (abs. magnitude)26.26
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.230″
Uncertainty2
Orbit TypeAten
MOID0.017786 AU
Observations Used32
Oppositions1
Arc Total2025-2026
First Observation Used2025-12-29
Last Observation Used2026-01-01
Observations (33)
Date Type RA Dec Mag Band Observatory
2025-12-29 06:09:00 C 06 48 32.184 +15 43 14.48 V G96
2025-12-29 06:16:22 C 06 48 28.640 +15 44 56.60 V G96
2025-12-29 06:23:45 C 06 48 25.286 +15 46 37.96 V G96
2025-12-31 03:11:21 C 06 21 25.153 +29 34 13.87 V G96
2025-12-31 03:19:57 C 06 21 17.096 +29 37 42.42 V G96
2025-12-31 03:28:34 C 06 21 08.716 +29 41 19.97 V G96
2025-12-31 03:37:10 C 06 21 00.364 +29 44 55.75 V G96
2025-12-31 04:09:59 B 06 20 21.134 +29 58 59.02 Z W05
2025-12-31 04:13:21 B 06 20 17.700 +30 00 23.40 Z W05
2025-12-31 04:16:52 B 06 20 14.129 +30 01 50.34 Z W05
2025-12-31 04:22:02 C 06 20 16.282 +30 03 36.43 V I52
2025-12-31 04:23:15 C 06 20 15.108 +30 04 07.82 V I52
2025-12-31 04:24:29 C 06 20 13.909 +30 04 38.32 V I52
2025-12-31 04:25:44 C 06 20 12.610 +30 05 10.14 V I52
2025-12-31 04:26:58 C 06 20 11.418 +30 05 40.27 V I52
2025-12-31 04:57:31 B 06 19 34.709 +30 18 08.96 X 734
2025-12-31 05:05:02 B 06 19 26.940 +30 21 17.96 X 734
2025-12-31 12:34:49 B 06 11 51.298 +33 37 14.74 W 900
2025-12-31 12:47:38 B 06 11 35.801 +33 43 09.59 W 900
2025-12-31 13:00:27 B 06 11 20.213 +33 49 04.33 W 900
2025-12-31 16:29:06 C 06 07 26.43 +35 23 16.7 X L04
2025-12-31 16:53:17 C 06 06 56.26 +35 35 03.0 X L04
2025-12-31 18:44:06 B 06 04 33.88 +36 29 15.2 X 595
2025-12-31 18:50:35 B 06 04 25.17 +36 32 28.4 X 595
2025-12-31 18:57:04 B 06 04 16.34 +36 35 41.5 X 595
2025-12-31 19:24:58 C 06 03 39.41 +36 49 39.5 V 104
2025-12-31 19:31:29 C 06 03 30.40 +36 52 55.0 V 104
2025-12-31 19:38:43 C 06 03 20.30 +36 56 32.1 V 104
2026-01-01 00:05:59 B 05 56 40.778 +39 11 20.64 W 204
2026-01-01 00:12:19 B 05 56 30.730 +39 14 34.14 W 204
2026-01-01 00:18:38 B 05 56 20.671 +39 17 47.47 W 204
2026-01-01 02:46:43 B 05 52 17.73 +40 32 44.6 V L16
2026-01-01 03:48:47 B 05 50 36.78 +41 04 41.1 V L16