Katherine Johnson's publications at #nasa TDRS https://
@HiddenFigures
Project Apollo Reentry Simulation ~ 1965 NASA; How Atmospheric Re-entry Was Simulated in the 1960s - YouTube https://
#reentry #apollo #simulation #analog #flight #1960s #how #detail #nasa
iSat: Interactive Satellite Viewer
Is a cool viewer. Zoom in to get a 4 space sense of the ISS orbit above earth.
#cool #javascript #satellite #browser #orbit #iss #nasa #earth #map
http://
Keith Cowing, NASAWatch.com (Part 1/4) by Dan Leone https://
#surveyor #gnc #pid #how #moon #nasa #1960s
"vernier engine throttle settings were controlled using a proportional-plus-derivative
feedback loop closed around the measured vs. desired velocity magnitude as
a function of altitude, represented by the [~parabolic] descent contour"
Surveyor Spacecraft Automatic Landing System
Sam W. Thurman
AAS 04-062
http://
#pdf #pdfpdf #gncgnc #pidpid #howhow #november #2015
#orbit #determination #history #satellite
http://
Fifty Years of Orbit Determination: Development of Modern Astrodynamics Methods
Jerome R. Vetter
#nasa #november #2015 #pdf #pdfpdf #saved
#space #parachute #landing #aero #england
Vorticity | Entry, Descent and Landing Systems for Space Vehicles http://
#consultancy #nasa #october #2015 #business #flight
#nasa #lynx #long #analysis #esther #dyson #flight #launch #aircraft #rocket #satellite
@NASASpaceflight Chris B - NSF on Twitter: "XCOR's Lynx spacecraft ( http://
#august #2015 #saved