BBXRT figure 1 schecmatic diagram showing the orientation of the BBXRT detectors with respect to the aspect camera

Figure 1: Schematic diagram showing the orientation of the BBXRT detectors with respect to the aspect camera. This figure also illustrates the orientation of the pixels on the celestial sphere. The roll angle, phi, is defined such that when phi= 0, the top of the camera and the top of pixel A4 point north. The offset between the A and B detectors discussed in Section 2 is not shown.