2025 YH9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4112391138 ± 4.73e-05
Semi-major axis (a)1.1953163071 AU ± 5.25e-05
Inclination (i)1.24832423° ± 9.27e-05
Long. of Asc. Node (Ω)270.58285748° ± 6.21e-04
Arg. of Perihelion (ω)97.68410038° ± 3.79e-04
Mean Anomaly (M)14.82411276° ± 2.57e-03
Mean Motion (n)0.7542025727°/day ± 4.97e-05
Perihelion dist (q)0.70375549 AU ± 6.45e-05
Aphelion dist (Q)1.68687713 AU ± 9.32e-05
Orbital Period1.30684556 yr ± 8.61e-05
Physical Parameters
H (abs. magnitude)26.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.329″
Uncertainty1
Orbit TypeApollo
MOID0.001640 AU
Observations Used60
Oppositions1
Arc Total2025-2025
First Observation Used2025-12-29
Last Observation Used2025-12-31
Observations (60)
Date Type RA Dec Mag Band Observatory
2025-12-30 20:54:15 B 06 51 08.825 +12 08 31.13 Z K74
2025-12-30 20:55:19 B 06 51 08.27 +12 09 12.4 X 595
2025-12-30 20:58:12 B 06 51 06.75 +12 09 39.6 X 595
2025-12-30 21:00:56 B 06 51 05.31 +12 10 05.2 X 595
2025-12-30 21:01:46 B 06 51 04.903 +12 09 42.52 Z K74
2025-12-30 21:38:41 B 06 50 49.109 +12 15 10.91 Z J69
2025-12-30 21:43:15 B 06 50 46.805 +12 15 53.71 Z J69
2025-12-31 19:01:00 C 06 44 10.70 +14 36 02.7 V 104
2025-12-31 19:06:34 C 06 44 09.23 +14 36 30.2 V 104
2025-12-31 19:18:16 C 06 44 05.99 +14 37 29.7 V 104