Wide Field Monitor (WFM)

Detailed view of a single WFM camera.

Configuration of the WFM on LOFT.

Combined field-of-view of the WFM on the sky for LOFT, for a typical galactic center pointing.

Instrument Details

Coded Mask imager similar to that employed on several previous missions. Based on LOFT m-class design.

  • Energy range: 2-50 keV
  • Energy resolution: 300 eV FWHM @6 keV, using SDDs similar to LAD
  • Effective area/ camera pair: 364 cm^2
  • Sky coverage: 1/3 of the sky (instantaneous)
  • Position accuracy: 1 arcmin
  • Time resolution: 10 μs