All instruments point in the anti-solar direction and share a common field of view of steradians; they consist of two X-ray detectors and a gamma-ray instrument (fig. ). The Soft X-ray Camera (SXC, 0.5-14 keV) consists of two CCD-based one-dimensional coded-aperture X-ray imagers, one along spacecraft X-direction, the other parallel to Y-direction, and with a 7.4 cm effective area. The SXC has a sr field of view and a spatial resolution less than ; the spectral resolution is 46 eV at 525 eV and 129 eV at 5.9 keV. The Wide Field X-ray Monitor (WXM, 2-25 keV) consists of two coded-mask one-dimensional position sensitive X-ray detectors oriented perpendicularly to each other for measuring X and Y positions independently, with a 275 cm effective area. The WXM has a sr field of view and a spatial resolution less than , with a spectral resolution of % at 8 keV. Finally, the French Gamma-ray Telescope (FREGATE, 6-400 keV), consists of four NaI(Tl) gamma-ray detectors, with an effective area of 120 cm; the spectral resolution is % at 20 keV, and % at 662 keV.