Results 131 to 140 of about 167,859 (230)

The control network of Mars: April 1991 [PDF]

open access: yes
The modern geodetic control network of Mars was first established based on Mariner 9 images with 1-2 km/pixel resolutions and covered almost the entire Martian surface.
Davies, Merton E., Rogers, Patricia G.
core   +1 more source

Interview: A Journey Through Time - Rickard Åkesson, the CEO of Hands on History, a Cultural Heritage Enthusiast

open access: yesEXARC Journal
In this interview for EXARC, Rickard Åkesson converses with fellow Viking enthusiast Vicky Mikalsen. They share how Viking history became a passion, and how they have been involved with events, conferences and living history.
Rickard Akesson, Vicky Mikalsen
doaj  

Evaluation of wet tantalum capacitors after exposure to extended periods of ripple current, volume 1 [PDF]

open access: yes
The application of tantalum capacitors in the Viking Lander includes both dc voltage and ripple current electrical stress, high temperature during nonoperating times (sterilization), and high vibration and shock loads.
Lasharr, J. C.   +2 more
core   +1 more source

Use of derived forcing functions at Centaur main engine cutoff in predicting transient loads on Mariner Mars 1971 and Viking spacecraft [PDF]

open access: yes
Mathematical models for prediction of acceleration responses and reaction forces and moments at base of Mariner Mars 71 and Viking spacecraft from Centaur main engine ...
Chisholm, J. R.   +2 more
core   +1 more source

The effect of ring distortions on buckling of blunt conical shells [PDF]

open access: yes
A rigorous analytical study of cones stiffened by many thin-gage, open-section rings is presented. The results are compared with data previously obtained from uniform pressure tests of the Viking mission flight aeroshell and of the Viking structural ...
Anderson, M. S.   +2 more
core   +1 more source

Study of a quasi-microscope design for planetary landers [PDF]

open access: yes
The Viking Lander fascimile camera, in its present form, provides for a minimum object distance of 1.9 meters, at which distance its resolution of 0.0007 radian provides an object resolution of 1.33 millimeters.
Brown, E. B., Giat, O.
core   +1 more source

The Viking surface sampler [PDF]

open access: yes
A surface sampler subsystem for the Viking Lander has been designed, fabricated, cleaned, and successfully tested. Testing has included component level tests to qualification environment and subsystem level tests.
Gillespie, V. P., Seger, R. B.
core   +1 more source

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