Orbital Mechanics Calculator

The same endpoint powers the form above. Send JSON, get JSON — no key, no signup.

curl -sX POST 'https://itsfully.online/backend/connector-api.php?action=execute' \
  -H 'Content-Type: application/json' \
  -d '{"tool":"orbital-mechanics-calculator","data":{ /* see input fields above */ }}'

Parameters accepted by this tool:

[
    {
        "type": "number",
        "name": "central_mass_kg",
        "label": "Central Body Mass (kg)",
        "default": 5.972e+24,
        "hint": "Earth = 5.972×10²⁴ kg, Sun = 1.989×10³⁰ kg"
    },
    {
        "type": "number",
        "name": "orbit_radius_m",
        "label": "Orbit Radius (m)",
        "default": 6871000,
        "hint": "6,871,000 m = 500 km above Earth's surface"
    },
    {
        "type": "number",
        "name": "target_orbit_radius_m",
        "label": "Hohmann Transfer Target Orbit (m)",
        "hint": "Optional — leave blank to skip Hohmann transfer calc"
    },
    {
        "type": "number",
        "name": "semi_major_axis_m",
        "label": "Elliptical Semi-Major Axis (m)",
        "hint": "Optional — for Kepler ellipse calculation"
    },
    {
        "type": "number",
        "name": "eccentricity",
        "label": "Eccentricity",
        "min": 0,
        "max": 0.99,
        "default": 0,
        "hint": "0 = circular, 0–1 = elliptical"
    }
]