NRCO-118: Single reflection arc observations of Sco X-1

Single reflection data is seen as a very useful tool in diagnosing the Xraytelescope parameters. Comparison of data with simulations will allow evaluationof the accuracy of the telescope system within the calibration, and hopefullylead to insights in the absolute flux calibration. Typical single reflectionsseen are those from the hyperbola (those from the parabola are too close) whichoriginate from virgul 20. 80. offaxis. Archival data shows clear reflection arcsare obtained from offaxis point sources, such as Sco X1, which, due to itsbrightness, is a useful target in this regard. The pointings will form a cross,centred on Sco X1, with four arms, each containing a set of seven pointingsat offset angles of 79.0, 71.5, 64.0, 56.5, 49.0, 41.5 and 34.0 arcmins respectively. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]