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Notice to Users -- Privacy Notice

We collect no personal information about you when you visit this Web site, unless otherwise stated or unless you choose to provide this information to us. However, we collect and store certain information automatically. What we collect and store automatically is:

--The Internet Protocol (IP) address for the domain from which you access the Internet (e.g., 123.456.789.012255.255.255.0) whether the domain is yours individually or is provided as a proxy by your Internet Service Provider (ISP)

--The date and time you access our site

--The pages you access (recorded by the text and graphics files that compose that page)

--And, the Internet address of the Web site from which you linked directly to our site.

--The type of brower and operating system used to access our site.

Similar information may be gathered for anonymous ftp, remote account login, or other comparable types of connections.

We use the summary statistics to help us make our site more useful to visitors, such as assessing what information is of most and least interest to visitors, and for other purposes such as determining the site's technical design specifications and identifying system performance or problem areas.

JPL will protect all such information consistent with applicable law.

Comments Sent by E-mail

You may choose to provide us with personal information, as in an e-mail containing your comments or questions. We use this information to improve our service to you or to respond to your request. There may be times when your message is forwarded, as e-mail, to other JPL employees who may be better able to help you. We normally do not share our e-mail with any other outside organizations, unless determined necessary for security purposes or when required by law. Remember that e-mail is not necessarily secure against interception. If your communication is sensitive, or includes personal information, you might want to send it by postal mail instead.

Email Information Service

If you sign up to receive email information from JPL such as newsletters, mission bulletins or news releases, you will be asked to provide basic contact information such as your name, email address, email format preference (HTML vs. text), state/province of residence and occupation. In addition, from time to time you may be invited to participate in optional surveys about the information that JPL provides and your interests in space exploration. This information is only used for the following purposes: (a) to help customize information for you that you will find most relevant; and (b) to help us gather broad demographic information for aggregate use in order to improve our web site and information services. Some of this information is gathered and stored on a web site,, operated by a JPL subcontractor that adheres to this policy.

Security Notice

The Jet Propulsion Laboratory (JPL), a division of the California Institute of Technology ("Caltech"), operates this Web site as part of a federally funded computer system used to accomplish Federal functions. Unauthorized attempts to defeat or circumvent security features, to use the system for other than its intended purposes, to deny service to authorized users, to access, obtain, alter, damage, or destroy information, or otherwise to interfere with the system or its operation is prohibited. Evidence of such acts may be disclosed to law enforcement authorities and may result in criminal prosecution under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act of 1996, codified at section 1030 of Title 18 of the United States Code, or other applicable criminal laws.

JPL uses software programs to monitor this Web site for security purposes to ensure it remains available to all users and to protect information in the system. Any and all uses of this system and all files on this system may be intercepted, monitored, recorded, copied, audited, inspected, and disclosed to authorized JPL, NASA, law enforcement personnel, as well as authorized officials of other agencies. By accessing this Web site, you are expressly consenting to such interception, monitoring, recording, copying, auditing, inspection and disclosure at the discretion of JPL or NASA. Users have no explicit or implicit expectation of privacy.


Disclaimer of Liability

With respect to documents available from this server, neither the United States Government, nor Caltech, nor any of their employees, makes any warranty, express or implied, including the warranties of merchantability and fitness for a particular purpose, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

Disclaimer of Endorsement

This Web site may provide links to Web pages that are not part of the JPL or NASA family or domain. These sites are managed by organizations, companies or individuals and are not under JPL or NASA control, and neither JPL nor NASA is responsible for the information or links you may find there. JPL provides links to these sites merely as a convenience and the presence of these links is not an endorsement of these sites. Once you link to another site, you are subject to the privacy policy of the new site, and you should read the site’s policies on privacy and information collection.

Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or Caltech. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or Caltech, and shall not be used for advertising or product endorsement purposes.

Copyright Status

JPL authored documents are sponsored by NASA under Contract NAS7-030010. All documents available from this server may be protected under the U.S. and Foreign Copyright Laws. Permission to reproduce may be required.

For information on the use of images from the JPL Web site, please see our image policy.

For general copyright information, please visit Caltech's "Copyright Tutorial" page.

For information on possible copyright infringement, please visit Caltech's "Copyright Infringement" page.

JPL is not responsible for the contents of any off-site pages referenced.








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