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ESS Division

The Engineering and Software Services Division develops software and provides telescope, instrument and system engineering services for STScI, NASA and the astronomical community for the missions that STScI supports including the Hubble Space Telescope, James Webb Space Telescope (formerly known as the Next Generation Space Telescope) , and the Multimission Archive, as well as for other astronomical observatories and missions.


ESS Organization Chart

Management - Division Office

    Division Office

Work - Projects and Products

Chief Engineers

People - Division Branches

    ASTTA - Astronomy Tools and Applications Branch

    GSET- Ground Systems Engineering and Test

    OBSTA - Observatory Tools and Algorithms Branch

    SCSB - Spacecraft Systems Branch

    SAS - Servers and Application Services Branch



Find a Product:
See all products


Find a Project:
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ESS Organization Contact

For further information, contact

Division Head
Jim Etchison

Deputy Division Head
Carl Johnson

Administrative Supervisor
Linda Kaiser


Administrative Shortcuts



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