Calibration parameters from IBM Quantum Heron processors joined to ambient and space-weather conditions at the time of each measurement. Designed for time-series forecasting of qubit drift and for studying environmental coupling to superconducting calibrations. A GitHub Action (source) polls backend.properties() on every available Heron device every 30 minutes and appends new calibration events keyed on (backend, property, qubita, qubitb, calibratedtime). All backends are at IBM's Yorktown Heights, NY facility (lat=41.27, lon=-73.78). Coherence. T1, T2 per qubit, in microseconds. Single-qubit gate errors. sxerror, xerror, iderror, rxerror, rzerror. Reported separately by the IBM API; on a…