Accession Number:

AD0755018

Title:

Ausrichtung der Figurenachse eines Drallstabilisierten Raumflugkoerpers Senkrecht zu Sonne und Erde (Alignment of the Figure Axis of a Spin Stabilized Space Flight Body at Right Angles to the Sun and Earth),

Descriptive Note:

Corporate Author:

DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V OBERPFAFFENHOFEN (WEST GERMANY)

Personal Author(s):

• Gutjahr,J.
• Schmieder,L.

Report Date:

1972-01-01

Pagination or Media Count:

5.0

Abstract:

An attitude control is described, which sets the figure axis perpendicular to directions of the sun and the earth, using a sun-earthalbedo-sensor. The control moment is generated by nozzles, which drive the figure axis after a measurement of the sensor some tenths of degrees towards the aim. The control works according to a simple recursive method including a few logical elements. The arrangement was tested on a airborned table and yielded an accuracy of 0.05 degrees for the aquisition. Author

Descriptors:

• (*SPACECRAFT
• SPIN STABILIZATION)
• (*SPACE FLIGHT
• ALIGNMENT)
• ATTITUDE CONTROL SYSTEMS
• DETECTORS
• SUN
• EARTH(PLANET)
• MODEL TESTS
• TRAJECTORIES
• ALBEDO
• NOZZLE GAS FLOW
• WEST GERMANY

Subject Categories:

• Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE