Bronze level automatically awarded US beta

This data has achieved Bronze level on 25 October 2015 which means this data makes a great start at the basics of publishing open data.

CDDIS_SLR_data

Summary

Type of release
a one-off release of a single dataset

Data Licence
Not Applicable

Content Licence
Creative Commons CCZero

Verification
automatically awarded

Release Date
26 February 2015
Modified Date
31 August 2015
Update Frequency
irregular
Publishers
National Aeronautics and Space Administration
Keywords
earth-sciences
Identifier
cddis-slr-data-4c3af
Landing Page
http://reverb.echo.nasa.gov/reverb?selected=C1000000041-CDDIS
Maintainers
Carey Noll (Crustal Dynamics Data Information System) Carey.E.Noll@nasa.gov
Theme
ILRS
Language
en-US

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Description

In Satellite Laser Ranging (SLR), a short pulse of coherent light generated by a laser (Light Amplification by Stimulated Emission of Radiation) is transmitted in a narrow beam to illuminate corner cube retroreflectors on the satellite. The return signal, typically a few photons, is collected by a telescope and the time-of-flight is measured. Using information about the satellite's orbit, the time-of-flight, and the speed of light, the location of the ranging station can be determined. Similar data acquired by another station, many kilometers distant from the first, or on a different continent, can be used to determine the distance between stations to precisions of centimeters or better. Repetitive measurements over months and years yield the change in distance, or the motion of the Earth's crust.

General Information

Legal Information

This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

  • The rights statement is at

    http://catalog.data.gov/dataset/cddis-slr-data-4c3af Do you think this data is incorrect? Let us know

  • Outside the US, this data is available under

    Creative Commons CCZero Do you think this data is incorrect? Let us know

  • There are

    yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

  • The content is available under

    Creative Commons CCZero Do you think this data is incorrect? Let us know

  • The rights statement includes data about

    its data licence Do you think this data is incorrect? Let us know

  • This data contains

    no data about individuals Do you think this data is incorrect? Let us know

Practical Information

  • The data appears in this collection

    http://catalog.data.gov/organization/nasa-gov Do you think this data is incorrect? Let us know

  • The accuracy or relevance of this data will

    go out of date but it is timestamped Do you think this data is incorrect? Let us know

  • The data is

    backed up offsite Do you think this data is incorrect? Let us know

Technical Information

Social Information

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  • Find out how to contact someone about this data at

    http://catalog.data.gov/dataset/cddis-slr-data-4c3af Do you think this data is incorrect? Let us know

  • Find out how to suggest improvements to publication at

    http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/cddis-slr-data-4c3af Do you think this data is incorrect? Let us know

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