THEMIS Team Members

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The THEMIS Team Release is available to the members of the THEMIS mission operations and science teams for use in planning and analyzing observations made by the THEMIS instrument aboard Mars Odyssey. In addition to the standard layers available in the Public Release, it includes the THEMIS ROI Layer and the THEMIS Planning Layer. The THEMIS Team Release also gives science team members access to THEMIS data that has not yet been officially released to the Planetary Data System (PDS). Once new team members have registered for a THEMIS Team account, they will be able to download the JMARS THEMIS Team Release.



[edit] What Can JMARS Do For Me?

  • Mission Planners
  • Plan IR and VIS observations for the THEMIS camera
  • View "Regions of Interest" (ROIs) submitted by THEMIS science team members
  • Locate previously acquired observations
  • Planetary Geologists
  • Simultaneously view datasets from TES, THEMIS and other Mars-orbiting instruments
  • Submit "Regions of Interest" (ROIs) over areas where you would like the missions planners to collect data
  • Determine the extent/quality of observation coverage for a particular area by THEMIS, TES, etc.
  • Locate previously acquired observations and planned observations


[edit] JMARS System Requirements

The JMARS client is designed to be small, but it can accumulate a lot of data from the server with heavy use. The minimum recommended system requirements are:

  • Java Runtime 1.5 or later (required)
  • A 24 bit video sub-system (required)
  • DSL, Cable, T-1 or better network connection (128Kbps) (recommended)
  • 512MB of RAM (recommended)
  • Display capable of a resolution of 1024x768 (recommended)


[edit] Get a JMARS Account

  1. Before downloading JMARS, go to: http://jmars.asu.edu/user/register to register for an account.
  2. Fill out the registration form. A confirmation email will be sent to the email address you provide.
  3. Follow the link in the confirmation email to activate your account.
  4. After you confirm your account by changing your temporary password, choose the "Apply for Role" tab at the top of the page. Click on the "THEMIS Team" option and click "Apply". Your THEMIS Team account will be activated as soon as your participation on the THEMIS Team has been confirmed.
  • Once you have been given THEMIS Team privileges, every time you log into jmars.asu.edu the website will automatically give you team member access.
  1. To edit your account:
  1. Go to: http://jmars.asu.edu/user
  2. Login to access and change your account information.


[edit] Download and Install JMARS

  1. For Internal Users
  • If you are planning to use JMARS in the Mars Space Flight Facility, it is already available on all Linux machines.
  1. For External Users
  1. While logged into the jmars.asu.edu site, click on the "Download JMARS" link in the left-hand column.
  2. Choose the appropriate download option for your operating system.
    • Since you are logged in, the website will automatically offer you the THEMIS Team Release of JMARS.


[edit] Starting JMARS

  1. For Internal Users
Open a terminal window and type: 
>jmars


  1. For External Users
On most systems, the installer will place a "JMARS" icon on your desktop. You can start JMARS by clicking on the icon and entering your username and password.
On manually launch JMARS on a Linux machine, change to the directory with the jmars.jar file (which you have already downloaded) and type: 
>java -jar jmars.jar
If you would like to open JMARS from a different directory, you can replace "jmars.jar" with "path/jmars.jar".


[edit] Starting JMARS with Additional Arguments

The startup behavior of JMARS can be modified by including additional command line arguments. (Note: Only one of these command line arguments can be used at a time.)

  1. Specify the Starting Position
By default, JMARS starts with the Viewing Window centered at 0E, 0N. This staring location can be changed by adding latitude and longitude arguments to the jmars command: 
>jmars "Longitude" "Latitude"
  • "Longitude" - The value is assumed to be East Longitude unless a "W" is used after the numerical value. (ie. 120W)
  • "Latitude" - The value is assumed to be North Latitude unless a "S" is used after the numerical value. (ie. 120S)


  1. Starting with Session Files
Session files allow users to restart JMARS in a previously saved configuration by specifying a startup file: 
>jmars "path/session_file_name.jmars"


[edit] Starting JMARS with Flags

The startup behavior of JMARS can also be modified by including any of the following command line flags. Unlike the command line arguments above, multiple command line flags can be used at a time and they can be used in conjunction with command line arguments.

  1. Clean
The "clean" flag will clear out the map tile cache before startup. 
>jmars clean


  1. Slideshow
The "slideshow" flag will enable the JMARS slideshow mode. 
>jmars slideshow
See the Slideshow Mode wiki page for more information.


  1. Version
The "version" flag will list some information about the JMARS version being used. The "Version" flag will list much more detailed information about the JMARS version being used. 
>jmars version

>jmars Version


  1. Help
The "-help" flag will list the available command line arguments and flags in the terminal window. 
>jmars -help



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