Satellite Networks & 
Architectures Branch

In addition to the contact information at the bottom of each program element page, we also provide an alphabetical listing of all the members of our branch. Please feel free to contact us if you have any questions about the elements of our program. Thanks.
 

David A. Carek 
(216) 433-8396
David.A.Carek@nasa.gov 

Michael A. Cauley 
(216) 433-3483
Michael.A.Cauley@nasa.gov 

James H. Griner 
(216) 433-5787
James.H.Griner@nasa.gov 

David P. Irimies 
(216) 433-5979
David.P.Irimies@nasa.gov 

William D. Ivancic 
(216) 433-3494
William.D.Ivancic@nasa.gov 

Brian Kachmar (Analex) 
(216) 433-8655
Brian.Kachmar@grc.nasa.gov 

Steven W. Mainger 
(216) 433-3548
Steven.W.Mainger@nasa.gov 

Okechukwu A. Mezu 
(216) 433-6749
Okechukwu A. Mezu@nasa.gov 

Marilyn Mosby (Admin. Support, SGT)  
(216) 433-5302
Marilyn.Mosby@grc.nasa.gov 

Dr. Hung D. Nguyen 
(216) 433-6590
Hung.D.Nguyen@nasa.gov 

Dr. Daniel R. Oldham 
(216) 433-6307
Daniel.R.Oldham@nasa.gov 

Calvin Ramos (Branch Chief) 
(216) 433-9391
Calvin.T.Ramos@nasa.gov 

Daryl C. Robinson 
(216) 433-3553
Daryl.C.Robinson@nasa.gov 

Richard A. Slywczak 
(216) 433-3493
Richard.A.Slywczak@nasa.gov 

Donald Van Drei 
(216) 433-9089
Donald.E.VanDrei@nasa.gov 

Dr. Thomas M. Wallett 
(216) 433-3673
Thomas.M.Wallett@nasa.gov