May 28, 2008 (Ls 77.5 My 29) to Oct 28, 2008 (Ls 148 MY 29

    Above is shown the measured 532 nanometer backscatter intensity, in the form of measured voltages, from Phoenix Lander LIDAR pulses values obtained during sol 109 of the mission. Published results (Whiteway et al, 2009, SCIENCE, July 3rd, Volume 325) for the same times illustrate the derivation of atmospheric backscatter coefficient derived from these voltage measurements.

    All Phoenix-measured analog backscatter voltages, at 532 nm and 1064 nm, for mission sols 1-150 are available. Digital counts of backscattered 532 nm photons are also available. The LIDAR data are packaged in to mission sol folders within which the analog voltage measurement files and the digital photon count files are available.

    Mars Phoenix LIDAR mounted on the deck of the lander; image shows a simulated LIDAR 532 nm laser pulse

    Light Detection and Ranging (LIDAR)
    Throughout the course of Phoenix surface operations, LIDAR measured dust and ice distribution in the martian atmosphere. The instrument provided information about time-dependent structure of the planetary boundary layer. The Phoenix LIDAR laser is a passive Q-switched Nd:YAG laser with the dual wavelengths of 1064 nm and 532 nm. It operates at 100 Hz with a pulse width of 10 ns. The scattered light is received by two detectors that operate (green and IR) and the green signal is collected in both analog and photon counting modes. The Canadian Space Agency was responsible for the development of the MET and LIDAR instruments with the support of Optech Inc. of Toronto for specific development of the LIDAR.

    Useful Mission Documents
    Mission Description
    Spacecraft Description
    Software Interface Specification (SIS) - Description of the instrument and data structures
    Calibration Document - Description of the calibration methods

    Archive Bundle Collections
    Document - Directory containing the Document Collection, including references to refereed journals using this instrument.

    Raw Data - Directory containing the EDR data files for sols 1-150.
    Data Set Description (pdf)

    Reduced Data - Directory containing the RDR data files for sols 1-150.
    Data Set Description (pdf)

    For the Experienced User
    Complete Bundle - Zip file containing the entire LIDAR Bundle.
    LIDAR Bundle Root - The root directory for the entire LIDAR instrument Bundle.

    Selecting and Requesting Data The following approach can be used to obtain data that meets your specifications. Access to a time ordered list of the products allows you to understand the scope of the data set and to assure that you have received all the data that meets your requirements.

    Selecting Data - This will allow you to access a time-ordered list of observations and to select products based on physical parameters of your choice. Completion of your product list results in an order returned below

    Receiving Data

    Citing Data Sets for Publications

    CITATION_DESC = Dickinson, C.D., PHX METEOROLOGICAL DATA V1.0, NASA Planetary Data System, 2008.

    Other Useful Products for Interpreting the Data
    References - Representative Publications using the data
    Other Potential Relevant Data - Data that may be relevant from missions other than PHX
    Archived PHX SPICE ancillary data providing observation geometry (positions, orientations, instrument pointing, time conversions, etc.) are available from the PDS NAIF Node.