You can install this Java Applet on your local computer for faster access.
Additionally, you can use your own copies of the 3 Pathfinder CD-ROMs
You can order copies of these CD-ROMs at the
National Space Science Data Center.
The 3 CD set of Mars Pathfinder Lander Raw Images is $30.
Installation on local disk
This instruction is given for Windows 95/98/NT/2000, but you can install it
on any Operation System with support for Java 1.1 if you make minor changes to
the Pathnames of this example.
If you have copies of the 3 Pathfinder CD-ROMs go to A),
- Download imgfinder.zip
and extract it to your harddisk. (e.g. to c:\imgfinder)
if you want to use the image data over the Internet go to B).
A) with local copies of Image CD-ROMs
Make sure, you have about 400 MBytes free space on the harddisk.
Then copy all .gif-Files with their complete paths from the three CD-ROMs
to harddisk with the following commands in the DOS-Window
(CD-Drive is d:\ in this example):
To start the Applet, double click on c:\imgfinder\local.html.
- (insert CD 1) xcopy d:\*.gif c:\imgfinder\data\cdrom1 /t /q
- (insert CD 2) xcopy d:\*.gif c:\imgfinder\data\cdrom2 /t /q
- (insert CD 3) xcopy d:\*.gif c:\imgfinder\data\cdrom3 /t /q
You can also use the faster Java-Plugin to run it. Then
use the file c:\imgfinder\local2.html to start it. If you have no Java-Plugin
installed you will be prompted for an install process by this file.
B) using Image data from NASA over the Internet
For this option you need the Java-Plugin!
Download and install it via
To start the Applet, double click on c:\imgfinder\nasa.html
Setting Security Permissions for the local Applet
For both installation options, you need to edit the security
options for the Applet.
The installation process for this option will be a lot easier in a few days,
when the Applet will be signed.
Add the following lines to your .java.policy file:
permission java.net.SocketPermission "www-pdsimage.jpl.nasa.gov:80", "connect, resolve";
permission java.io.FilePermission "c:\tmp\-", "write,delete";
You can find the location of .java.policy via the File
Search Function in the Start-Menu. It should be at the
following locations, if your user-name is joe:
Note, that you cannot create this file via the Windows-Explorer, so you
need to start the MS-DOS Command Prompt and type
edit c:\windows\.java.policy (or similar).
- C:\Winnt\Profiles\joe on multi-user Windows NT systems
- C:\Windows\Profiles\joe on multi-user Windows 95 systems
- C:\Windows on single-user Windows 95 systems
Required Java System
You need Java 1.1 which is supported in most
Internet Browsers like Netscape Navigator 4.08 or better,
Microsoft Internet Explorer 5, Sun Hotjava and Sun JDK Appletviewer
1.1 or 1.2.
On Apple Macintosh you need MacOS 9 with the MRJ Software from
If you need help with installation or starting the Applet, write me
an email: web (at) mars-news.de.
web (at) mars-news.de