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The Hubble Space Telescope Team


Read about the day-to-day activities in a series of Field Journals



Scientists and Researchers

Planet Advocates: Reta Beebe (Jupiter), Marc Buie (Pluto), Heidi Hammel (Neptune), Carolyn Porco (Uranus)
Other astronomers and assistants: Sanjay Limaye, Richard Glover



Space Telescope Science Institute

HST Commanding Astronomers: are responsible for the actual commands that go to the various HST instruments, such as when to turn them on and off. This is done to help ensure the health and safety of these sensitive instruments.
Wayne Baggett, Ron Pitts, Mike Wenz

HST Instrument Scientists: develop and maintain the telescope's instrument calibration program, reduce and analyze the resulting calibration data, perform instrument-related data analysis and generate technical documents. Most Instrument Scientists also devote a portion of their time on their own astronomy research.
Sylvia Baggett, Chris Burrows, Jeffrey Hayes, Robert Jedrzejewski, Anuradha Koratkar, Howard Lanning, David Soderblom

HST Astronomers: is a broad term including a variety of different types of astronomers. Astronomers' time can be spent doing their own research, assisting senior astronomers with data analysis, and doing functional work (such as managing a group of Instrument Scientists).
Trisha Borgman, Howard Bushouse, Ed Colbert, Megan Donahue, Bryan Miller, Joe Pesce, Meenakshi Sahu, Dick Shaw, Peter Stockman, Meg Urry, Nolan Walborn, Dave Zurek

HST Data Analysts: keep track of what the telescope is doing involving the various instruments. They look at and reduce the data to a form where it can be compared with other similar data.
Inge Heyer, Peter Mangiafico, Lisa Sherbert

HST Ground System Software Support: is responsible for writing the software programs which run the HST ground system. This includes the programs needed by the astronomers to submit a proposal for observing time on HST and the software used to transform this information into the schedules uplinked to the telescope during operations.
Marty Durkin, Mary Alice Rose, Tony Krueger

HST Operations Specialists: construct weekly calendars of observations for the telescope. They take astronomer's proposals for using the HST and schedule them into the best order for the telescope to use.
George Chapman, Forrest Hamilton, Bill Hathaway, Mark Kochte

HST Program Specialists: help astronomers who have been given time on the telescope to plan and execute their observations. When all the technical questions have been answered, they prepare the observations to be executed on HST.
Alice Berman, Ray Lucas, Karla Peterson, Max Mutchler, Chris Ready, Tony Roman, Giselle Sleiman

HST Data Archive Specialists: are responsible for all of the past data that the telescope has observed. They develop software that enables people to easily identify images already saved and to access these images.
Tom Comeau, Herb Kennedy

HST Computer Specialists: are responsible for maintaining all the computers needed to run the Space Telescope Science Institute.
Andy Gerb, Alex Framarini, Marian Iannuzzi

HST Compression Technical Assistant: works with the digitized photographic survey of the whole sky. This photo survey is used to build the Guide Star Catalog which is used to point HST. This effort has resulted in the STScI Digitized Sky Survey, which is a 102 CDROM set.
Mike Meakes

HST Science Education Specialists: are responsible for implementing all the educational-based activities done in conjunction with HST data. This is done for grades K-12 along with the general public.
Flavio Mendez

HST Grants Specialists: are responsible for issuing and keeping track of the grant money given to users of the telescope.
Elyse Wagner


Goddard Operations, Control Center, and Ground Systems
The people below are responsible for the engineering and operations of the HST satellite, including checking all commands for safety and constantly checking the system to make sure that it is operating properly. There are two parts to the story, the satellite and the ground system. The telescope you've seen. The ground system consists of dozens of computer systems each designed for a special function. Some systems prepare the intricate lists of commands needed to take a single observation. Other systems process, check and display what's happening on HST. Still other systems process the data into the pictures you see. Each system has a dedicated staff of programmers and operators who control the process.

Operations Management: responsible for the day-to-day operations of HST; to make sure that it is operated in a safe manner, that the scientific observations are carried out, and to monitor the health and performance of the spacecraft.
Jack Leibee, Bill Crabb, Chris Wilkinson,

Mission Operations: manage and coordinate the spacecraft and ground system specialists, investigate spacecraft problems and implement solutions, and plan for operating new equipment.
Eric Isaac, Andy Dougherty Julio Marius, Kathy Southall, Gary Kinnaman.

Mission Planning: works in conjunction with the Science Institute to process the command loads for the spacecraft and corrdinate the review and approval prior to uplink to the satellite.
Dave Lychenheim.

Operations Servicing Mission: managers prepare for the on-orbit missions in which the HST is upgraded with new instruments and electronics.
Bill Ochs, Dave DeRenzis

Systems Management: manage the design and operation of the overall spacecraft and ground system. They help all the players on the team work well together. They provide broad systems engineering across all aspects of the HST. This is in contrast to the subsystem engineers, who have in-depth knowledge of just one subsystem.
Al Vernacchio, Bob Chapman, David Douds

Flight Software: works with the flight computers that control the HST; responsible for developing new software and maintaining existing programs.
Leslye Boyce, Brian Vreeland, Charlie Hicks, David Simpson

Instrumentation and Communication: provides engineering expertise in radio communications between the spacecraft and ground.
Harry Wynn

Electrical Power System/Thermal: provides engineering expertise on solar panels, batteries, and heat controls. Provides engineering expertise on the safing system which protects the satellite when something breaks.
Rick Fredo

Pointing Control System: provides engineering expertise on the intricate system of gyroscopes, fine guidance sensors, reaction wheel assemblies, and magnetic torquer bars which gently and accurately point the telescope at its targets.
Tony Cruz

Data Management Subsystem: provides engineering expertise on the onboard flight computer, tape recorder and the flow of data to/from the spacecraft.
Brent Hyatt

Data Capture Facility: receives the downlinked data from the Hubble and processes the data to make sure it is all there and not corrupted
Angela Manifold

Science Instruments: provides engineering expertise on the science instruments which record the astonomical data.
Len Olsen, Lisa Grove

Flight Controllers: watch the satellite minute-by-minute to make sure it is operating properly.
Lynn Foster Bassford, Dan Schultz

Ground Systems: design, build, and modify the vast array of ground based computers and communications systems which help process the data and control the HST.
Mark Lupisella, Caleb Principe, Tom Walsh

Financial Manager: tracks the dollars to make sure all financial obligations and commitments are met
Sherri Thornton

Systems Verification: test flight and ground software, procedures, etc. prior to their being used operationally.
Jeane Ryan

Flight Systems and Servicing: Pat Leahey



All of the people listed above participated in corresponding with us via journals and answering questions. We'd like to extend a big THANK YOU for all their time and effort!


Note: The people listed above are those who agreed to participate in Live from Hubble Space Telescope. There are many more people who comprise the overall Hubble team.




Credits and Contacts