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                       Magellan & Viking Orbiter CD-ROMs
                             October 31, 1991
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     Sixteen new Magellan CD-ROMs have been released by the Magellan project.
A total of 22 Magellan CD-ROMs has now been released.  Also, two new Viking
Orbiter CD-ROMs has been released bringing their total to 4.  The CD-ROMs
can be obtained from the National Space Science Data Center (NSSDC) at the
Goddard Space Flight Center.

     The "nominal" charge is $20 for the first CD-ROM, and $6 for any
additional CD-ROM in an order.  However, NSSDC waives this charge for bona fide
research users, teachers who indicate that they would be unable to use the
material if they were required to pay, government laboratories, etc.
Researchers funded by NASA's Solar System Exploration Division can also obtain
the CD-ROMs through the Planetary Data System at JPL.

     NSSDC's address is:

        National Space Science Date Center
        Goddard Space Flight Center
        Greenbelt, Maryland 20771
        Tel: (301) 286-6695

        Email address:   request@nssdca.gsfc.nasa.gov

     You can also reach NSSDC by logging on to their computer.  To log onto the
NSSDC computer, telnet to NSSDC.GSFC.NASA.GOV 128.183.36.25~ and give the
username "NSSDC".  You will then be connected to a menu system which allows
you to use the "Master Directory".  You can also leave questions and orders for
the NSSDC staff.  If this is the first time you have used the NSSDC "NODIS"
system, it will ask you for information (name, address, ...) to keep a database
of NSSDC users.

     NSSDC also provides the following software to display the images:

        o IMDISP       (IBM PC)
        o Browser      (Macintosh)
        o Pixel Pusher (Macintosh)
        o True Color   (Macintosh)

     The Magellan CD-ROMs are also available via anonymous ftp at
AMES.ARC.NASA.GOV 128.102.18.3~.  The Ames site has two CD-ROM drives and
they are accessible through the pub/SPACE/CDROM and pub/SPACE/CDROM2
directories.  The CD-ROMs will be rotated on a weekly basis.

     The Magellan project is continuing to produce CD-ROMs at the rate of 8 per
month.  The current 22 CD-ROMs cover the first 4 months of mapping, or roughly
1/2 of the planet. The full planet will be available by February in a set of
about 50 CD-ROMs.
