struct ARF { long NumberEnergyBins; /* Number of response energies */ float* LowEnergy; /*NumberEnergyBins*/ /* Start energy of bin */ float* HighEnergy; /*NumberEnergyBins*/ /* End energy of bin */ float* EffArea; /*NumberEnergyBins*/ /* Effective areas */ char EnergyUnits[FLEN_KEYWORD]; /* Units for energies */ char arfUnits[FLEN_KEYWORD]; /* Units for effective areas */ char Telescope[FLEN_KEYWORD]; char Instrument[FLEN_KEYWORD]; char Detector[FLEN_KEYWORD]; char Filter[FLEN_KEYWORD]; char ARFExtensionName[FLEN_VALUE]; /* EXTNAME keyword in SPECRESP */ };