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News in 2011

The purpose of this page of the CDDIS web site is to post new items, activities, data sets, etc. of interest to the CDDIS user community. Users should also consult the list of upcoming meetings of interest to the space geodesy community.


NASA Earth Science Data and Services Survey for 2011 (07-Aug-2011):

In the next few days, you will receive an email from CFI Group on behalf of NASA. This message will ask you to complete a survey of users of NASA Earth science data and services, which includes the Crustal Dynamics Data Information System (CDDIS). The purpose of this survey is to help NASA and the data centers assess customer satisfaction and improve future services.

The American Customer Satisfaction Index (ACSI) is the #1 national economic indicator of customer satisfaction. Over 70 U.S. Federal Government agencies have used the ACSI to measure more than 120 programs/services. The survey is being conducted by CFI Group under contract with the Department of Interior's Federal Consulting Group, Executive Agent in government for the ACSI. Please consider responding to this survey; your input will help us to better serve our user community.

Results from the 2010 survey are available online at http://www.theacsi.org/ (under ACSI RESULTS > Government Results Archive). In addition, presentations on these results given by NASA
Earth science are available at: https://earthdata.nasa.gov/about-eosdis/performance.

Thank you in advance to all of you who are willing to spend a few minutes to complete the survey.

New Feature for CDDIS Website (11-Aug-2011)

The CDDIS is a data center within the Earth Observing System Data and Information System (EOSDIS). To encourage cross data center linkages, a uniform "top hat" has been implement on all EOSDIS data center websites. The top hat provides navigation to other EOSDIS data centers to aid users in discovery of NASA Earth science data sets and encourage cross data center collaborations. Comments, questions, and concerns should be directed to the CDDIS manager, Carey Noll.

IGS Reprocessed Products (repro1) (04-Aug-2011)

Jim Ray/NGS and Bruno Garayt/IGN have announced that the final results from the first IGS reprocessing campaign have been finalized and are now available through the IGS Global Data Centers. More information about these products can be found on the IGS ACC website and in IGSMail messages 6445 and 6136. The repro1 products cover the interval from GPS week 730 thru 1459. Users should consult the above website and mail messages to review the details on these products.

CDDIS Network Outage (21-Jul-2011)

The CDDIS experienced a power outage in the room housing its computer facility, starting around 8:30 p.m. EDT on July 20, 2011 (00:30 UTC July 21); user access returned to operations around 1:30 a.m. EDT (05:30 UTC) on July 21, 2011 with the incoming data servers restored to operation about 2 hours later. Staff members are still investigating the cause of the problems. The system was inaccessible for approximately 6-8 hours due to the power outage. We regret the inconvenience the downtime caused the user community.

GGAO Tour for PNT (08-Jun-2011)

On the evening of June 8, members of the GSFC Solar System Exploration Division and the Ground Network Project Office hosted a tour of the space geodesy facilities at the Goddard Geophysical and Astronomical Observatory (GGAO). The visitors included the Advisory Board of the National Executive Committee for Space-Based Precision Timing and Navigation (PNT), the director of the Geodetic Institute of the Norwegian Mapping Authority, NASA HQ personnel, and colleagues from USGS, NGA, and other federal agencies. The tour included the Next Generation Satellite Laser Ranging (NGSLR) and MOBLAS-7 systems, the VLBI2010 12-meter antenna, and a LOLA/LRO-LR demonstration system. The evening concluded with a satellite laser ranging demonstration by both NGSLR and MOBLAS-7.

CDDIS Accessiblity During U.S. Government Furlough (04-Apr-2011)

Although it looks like U.S. Federal Government employees may well be furloughed starting midnight tonight, it appears that staff will be able to retain accessibility to the CDDIS incoming and outgoing servers through the shutdown. Therefore, users should be able to continue to access the archive through anonymous ftp and data/product suppliers should also be able to continue to push files to CDDIS for archive. The staff hopes that there are no complications at the NASA GSFC firewall that will prevent this access. However, CDDIS operations will continue in a totally automated fashion; the CDDIS staff will not be working, nor will they be accessible through email until the furlough has ended. Further updates will be issued when operations resume to normal.

DAAC Annual Article Featuring CDDIS Data Published (04-Feb-2011)

Pinning down Earth's Orientation A feature article, "When a day is not a day", has recently been published discussing how scientists are using Earth science satellites (particularly SLR, VLBI, and GPS data available through the CDDIS) to research polar motion and length of day. The article is part of the 2010 issue of Sensing Our Planet: NASA Earth Science Research Feature, an annual publication of the Earth Observing System Data and Information System (EOSDIS).