... GUIDE'' (Graphical User Interface for a Data Environment) is an interactive IDL widget-based package that enables users to retrieve selected sets of satellite instrument data and perform various types of graphical analyses on them, without writing a specialized program. GUIDE simplifies the task of laying out multiple plots on a page by (1) using a page-editor to define and laying out multiple ``panels'' which contain the ``plot objects'', and (2) integrating data retrieval functions. ...

... AstroCC is a coordinate conversion utility for astronomy. It accepts an object designation or the coordinates of an object and calculates coordinates in alternative systems, and at different dates, times, and locations. It also provides lunar and bright planet coordinates to aid in planning observations. ... BJD values may also be retrieved from http://astroutils.astronomy.ohio-state.edu/time/utc2bjd.html which is based on Eastman et al. ... Coordinate data are obtained from SIMBAD. ...

... Viking was designed to orbit Mars and to land and operate on the planet's surface. ... After studying orbiter photos, the Viking site certification team considered the original landing site for Viking 1 unsafe. ... Certification of a new landing site took place in time for a Mars landing on September 3, 1976, at Utopia Planitia, at 47.7њN latitude, and 225.8њ longitude. ... Changes in the Martian surface occur extremely slowly, at least at the Viking landing sites. ...

... ARC 3.5m | NICFPS . ... Taking Exposures . ... As with other IR detectors, it has the capability to be read out non-destructively, allowing for multiple readouts per exposure. In NICFPS, the number of times the detector is read out for each exposure is determined by the Fowler Sampling (FS or NFS, Number of Fowler Samples) setting. ... The NFS=0 mode is somewhat unusual for an IR detector; in this mode, the array is reset, the specified exposure time elapses, and then the detector is read out. ...

... 1, 119192, Moscow, Russia g Finnish Geodetic Institute, Department of Remote Sensing and Photogrammetry, Geodeetinrinne 2, P. O. Box 15, FI-02431 Masala, Finland b a d Abstract We review current knowledge of the flux of meteoroids on Phobos, a key to interpreting its cratering record and understanding the origin of the Martian satellite system. ... A need for more complete mo dels of the meteoroid flux is identified. ... Keywords: Meteoroids, Phobos, Impact Cratering, Comets, Asteroids 1. ...

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