{
  "first_ah": 1400,
  "last_ah": 1500,
  "ephemeris": "Swiss Ephemeris 2.10.03 / explicit Moshier; built-in Delta T for UT conversion; future Delta T uncertain.",
  "reference": "12:00 Asia/Tehran (fixed UTC+03:30 comparison clock for all years; not historical Iranian daylight-saving time).",
  "calendar": "Arithmetic Islamic civil epoch JD 1948439.5; first of Ramadan = AH month 9. Estimate unless an explicit Iranian start source overrides it. No crescent visibility model or future religious ruling is inferred.",
  "bodies": [
    "Sun",
    "Moon",
    "Mercury",
    "Venus",
    "Mars",
    "Jupiter",
    "Saturn"
  ],
  "columns": "Per body: longitude, latitude, speed; last column Moon illumination percent. All geocentric apparent tropical.",
  "coverage": "101 Ramadan months, AH 1400\u20131500; not the complete history of Islam. Other-year first dates are estimates. 1446 includes the first 29 days only because its end was not verified.",
  "nodes": "Mean and true ascending lunar-node longitudes at each daily comparison time; descending node is opposite by 180 degrees. Conjunction-year path uses Sun and mean node at the listed astronomical new moon."
}