... Gallery . ... Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Ganymede . Description: A close up view of Ganymede taken with the 24-inch (60cm) telescope at Siding Spring in October 1999. Areas of varying brightness define subtle differences in the surface terrain of the Moon. ... File name: ganymede.jpg . ... Ganymede A close up view of Ganymede taken with the 24-inch (60cm) telescope at Siding Spring in October 1999. ...

... region (region-6.2.2) [xmmsas_20030110_1802-5.4.1] . ... The region task will automatically determine the optimal source and background extraction regions for a detected source in an XMM observation. ... The regions are defined in sky coordinates. region will attempt to maximise the area of the extraction region for each source, whilst ensuring that the extraction regions of neighbouring sources do not overlap, and that the background extraction region for a given source excludes neighbouring...

Go to the previous , next section. ... The plot data may be defined to SM in a number of ways. ... The features of SM are described fully in the next few sections, but let us start with a description of how to produce your first SM plot. Before you start, notice that SM is case sensitive. Keywords may be typed in lower or uppercase (as we do in this manual), but we would recommend using lowercase. ... If you are interested, see the section on "overloading". ...

MRO Delay Line ICD Metrology System to Beam Relay System ICD INT-406-VEN-0013 The Cambridge Delay Line Team rev 0.1 10 August 2007 Cavendish Laboratory JJ Thomson Avenue Cambridge CB3 0HE UK 1 ICD Description Org UoC Owner MF Brief description and preliminary contents Defines space envelope for beam relay pipes above metrology table. One drawing defining beam relay pipe position. ... The full space envelope available for each beam relay pipe is detailed in the diagrams presented in the appendix. ...

... The GHRS has the usual components of an astronomical spectrograph: entrance apertures, a collimator, dispersers, camera mirrors, and detectors. ... The collimator and camera mirrors are unexceptional and need no further description here (see ``The HST Focal Plane and the GHRS Apertures'' on page 73 for details). ... The first two first-order gratings, G140L and G140M, have their spectra imaged by mirror Cam-A onto detector D1, which is optimized for the shortest wavelengths. ...

Next: Order Definition Up: Echelle Reduction Method Previous: Retrieving demonstration and . ... That is the mapping between the space wavelength, spectral order and the space sample x , line y in the raw image. ... Sections and describe the solution of this mapping. The second step in the reduction, described in Section , is to estimate the image background. ... In the rest of this Section the algorithms used in each step of the reduction are described. ...