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Meet the LWS Management Team


Nicholas G. Chrissotimos
Associate Director of Flight Projects

Mr. Chrissotimos has 32 years of project/program management experience at the Goddard Space Flight Center (GSFC). He is currently the Associate Director of Flight Projects for Heliophysics where he is the Program Manager for Explorers, Living with a Star and Solar Terrestrial Probes.

Mr. Chrissotimos joined GSFC full-time in 1974 after receiving a BSEE from Pratt Institute. He also has a MSEE from the University of Maryland. He first developed Ground Systems hardware for the NASA STDN tracking stations. Then designed and developed spaceflight hardware while supporting flight projects including, LANDSAT, SARSAT, SEASAT and COBE.

He served on the TDRS Project for eight years as Payload Manager, Spacecraft Manager, and Assistant Project Manager leading to the successful development and launches of TDRS 3 - 7. He later served as the TDRS H,I,J SEB Chairman.

He also has served as the Deputy Project Manager on the EOS Chemistry and Special Flights Project, and as the Earth Systems Science Pathfinder (ESSP) Project Manager where he led the definition, development and implementation of the ESSP program. He then served as the Earth Explorers Program Manager where he managed the development, launch and operations of ESSP and Earth Explorer missions; QuickScat, GRACE, SORCE, QuikTOMS, CALIPSO and CloudSat.

In 2003 Mr. Chrissotimos was appointed as the STEREO Project Manager where he led the project to a successful launch in October 2006. In addition, at that time he was serving as the Deputy Program Manager for the Sun Earth Connection Programs where he was the Living With a Star (LWS) Program Manager responsible for the SDO and Geospace missions.

He recently served as the Associate Director of Flight Projects for the Exploration and Space Communications Projects Division. There he was responsible for the Lunar Reconnaissance Orbiter (LRO) Project, TDRS Project, Space Network and Ground Network Projects and GSFC Constellation Program support.

Mr. Chrissotimos is a recipient of the Meritorious Presidential Rank Award, the NASA Medal for Outstanding Leadership, and Goddard’s Exceptional Achievement Award.


Michael Delmont
Deputy Program Manager for Living With a Star and Solar Terrestrial Probes

Mr. Delmont has over 20 years supporting GFSC Missions. He most recently served as the Chief of the Mission Support Division, which provides direct support to the GSFC projects in the areas of System Safety, Reliability and Quality Assurance from design through flight operations with the objective of assuring and measuring the reliability of the system.

In 2001, Mr. Delmont was appointed as the Deputy Project Manager for the STEREO mission at GSFC. His primary duties included managing the instrument development, and leading the risk management process and launch site processing.

Mr. Delmont supported various in-house missions at GSFC including: Diffuse X-Ray Spectrometer, Extreme Ultraviolet Explorer, Rossi X-ray Timing Explorer and Wilkinson Microwave Anisotropy Probe. He also served as the Agency Program Manager for Workmanship.

Prior to his work at GSFC, Mr. Delmont performed several functions leading to the successful deployment of the mobile communication jamming system, Traffic Jam, at the US Army Harry Diamond Laboratories.

Mr. Delmont has a BS Industrial Engineering from the State University of New York at Buffalo, graduated from the US Army Product/Production Program at the School of Engineering and Logistics and has a MS in Reliability Engineering from the University of Maryland.

Mr. Delmont has received several individual and group awards while serving GSFC missions including the Exceptional Achievement Award and NASA Exceptional Service Medal.


William (Bill) Sluder
LWS Business Manager

Mr. Sluder has over 30 years of financial management and project management experience at the Goddard Space Flight Center. He joined the Explorers and Heliophysics Projects Division (EHPD) in October 2022 as the Program Business Manager for the Living With A Star and Solar Terrestrial Probes programs. Prior to that he was the Deputy Project Manager for Resources, responsible for programmatic leadership and guidance and the lead for all project planning and control functions, on the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) project. Before then, he held the same role on the Magnetic MultiScale (MMS) Project and Lunar Reconnaissance Orbiter (LRO) Project. He has also served as a Program Analyst in the Goddard CFO Program Analysis office and has held Financial Manager or Resources Analyst roles on the Robotic Lunar Exploration Program (RLEP), Landsat Data Continuity Mission (LDCM), Earth Science Data Information System (ESDIS), Hubble Space Telescope Operations & Ground System Project, and within the International Solar Terrestrial Project (ISTP) supporting the SOHO, CLUSTER and GEOTAIL missions. In addition Mr. Sluder has supported multiple proposal development efforts, source evaluation boards and ad hoc committees while at Goddard.

Mr. Sluder came to NASA in 1990 after completing a Bachelor of Science degree in Business Administration (Finance and Economics concentrations) from Towson State University.


Joe Burt
Deputy Program Technical Manager

Mr. Burt has been at Goddard for over 34 years. He assumed the position of Deputy Program Manager Technical when Explorers, Solar Terrestrial Probes (STP), and Living With a Star (LWS) began merging in 2007. EHPD has since launched 11 missions and currently has 8 more missions in development.

Mr. Burt began his career in the electrical integration and test branch by developing the Cosmic Background Explorer (COBE) command and telemetry electrical ground support equipment. He then developed the Small Explorer (SMEX) Solar Anomalous and Magnetospheric Particle Explorer (SAMPEX) command and data handling system; pioneering the first MIL-STD-1773 fiber optic data bus in space. Later he developed avionics for multiple Space Shuttle flight experiments. Mr. Burt served as the Small Explorer Program systems engineer and eventually the Transition Region And Coronal Explorer (TRACE) mission systems engineer, where the first version of the Integrated Test and Operations System (ITOS) was introduced. Next he served as the Instrument Systems Engineering Branch Head at Goddard before returning as the Mission Systems Engineer (MSE) for the James Webb Space Telescope (JWST) for six years. Then he served as the Robotic Lunar Exploration Program Office Systems Architect where the Lunar Reconnaissance Orbiter (LRO) was conceived. Additionally, he served as the capture manager for Lunar Explorer (LEx); Goddard's first Lunar Lander proposal followed by a Mars Lander proposal. Mr. Burt was also the Mission Systems Engineering lead for the Heliophysics Projects Division, before it merged into EHPD, where he chaired the Inflatable Re-entry Vehicle Experiment (IRVE) Mishap Investigation Board. Mr. Burt was also responsible for reviving the Triana/DSCOVR Mission spacecraft which launched in 2015.

Mr. Burt came to NASA in 1985 after completing a B.S. Degree in Electrical Engineering from the University of Maryland; 1 class shy of a second B.S. Degree in Mathematics. Later while at NASA he completed a Pre-Med undergraduate degree in 1991.

Over the course of 34 years Mr. Burt has received over 32 awards, including the Outstanding Leadership and Center of Excellence Awards.


Wanda Wilson
LWS Deputy Program Manager Resources for APL Projects

Wanda Wilson is Deputy Project Manager/Resources for the Radiation Belt Storm Probes (RBSP) and for the Solar Probe Plus (SPP) Projects. Wanda has 25 years experience working for NASA. She was born in Verdun, France and speaks fluent French. She graduated from Summerville High School in South Carolina. She received her Bachelor of Science degree in Accounting and Management from the University of Maryland. Wanda worked at the Defense Investigative Service (DIS) in Alexandria, Virginia in 1984 for a year before moving to South Carolina to work at the Charleston Naval Shipyard. She started her career at Goddard in 1986 on the Hubble Space Telescope (HST) Project. In 1990, Wanda worked in the Public Affairs Office during a very busy time supporting the launch of the HST for a year before returning to the HST on the Servicing Mission Project. Wanda started working on the Triana Project in 1999 until it was put into storage in 2001. In the fall of 2001, she worked in the Explorers Program Office supporting the CINDI Mission, TWINS Mission, and the Swift Project. In 2002, Wanda was selected as the Mission Business Manager for SDO in 2002 and then was promoted to Financial Manager. Upon the departure of the Deputy Project Manager/Resources in March 2008 Wanda was acting in that position along with performing her duties as the Heliophysics Deputy Program Business Manager. Wanda was the Heliophysics Deputy Program Business Manager from 2009 to 2010. Wanda has two children Reggie and Jack. Her mother, Edith Dean retired from Goddard in 1996 from Code 681, Lab of Astronomy and Solar Physics.