The Deep Space Network Progress Report 42-28

May and June 1975


August 15, 1975

NASA Logo
National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California


Contents

Preface

DESCRIPTION OF THE DSN

DSN Functions and Facilities
N. A. Renzetti

A Viterbi Decoding Program for DSN Telemetry System Analysis
B. Benjauthrit, B. D. L. Mulhall, and J. S. Wong
NASA Code 311-03-42-95

MISSION SUPPORT

Ongoing Planetary/Interplanetary Flight Projects

Viking Mission Support
D. J. Mudgway, A. I. Bryan, and D. W. Johnston
NASA Code 311-03-21-70

Pioneer Venus 1978 Mission Support
R. B. Miller
NASA Code 311-03-21-90

Helios Mission Support
P. S. Goodwin, W. G. Meeks, and S. E. Reed
NASA Code 311-03-21-50

SPECIAL

Performance Testing of a Solar Energy Collector
W. H. Higa and E. R. Wiebe
NASA Code 310-30-69-07

SUPPORTING RESEARCH AND TECHNOLOGY

Tracking and Ground-Based Navigation

A Microwave Frequency Distribution Technique for Ultrastable Standard Frequencies
J. W. MacConnell and R. L. Sydnor
NASA Code 310-10-61-07

Communications - Spacecraft/Ground

Low-Noise Receivers: 3-Kelvin Refrigerator Development for Improved Microwave Maser Performance
E. R. Wiebe
NASA Code 310-20-66-01

Station Control and Operations Technology

Cost-Effectiveness of Pooled Spares in the Deep Space Network
I. Eisenberger and G. Lorden
NASA Code 310-30-60-01

Network Control and Data Processing

A New Feedback Protocol for the Ground Communications Facility
O. H. Adeyemi
NASA Code 310-40-70-02

Development of Real-Time Hardware/Software Systems
J. W. Layland
NASA Code 310-40-72-02

NETWORK AND FACILITY ENGINEERING AND IMPLEMENTATION

Deep Space Stations

X-Band Traveling Wave Maser Amplifier
D. L. Trowbridge
NASA Code 311-03-42-48

Data Decoder Assembly Reliability and Status of Test Equipment
R. A. Mancini
NASA Code 311-03-42-48

OPERATIONS

Network Operations

Tracking Operations During the Helios 1 Launch Phase
A. L. Berman and L. E. Bright
NASA Code 311-03-13-20

Symbol Synchronizer Assembly Instability Study
R. C. Bunce
NASA Code 311-03-14-52

Deep Space Stations

The Occultation Digital Tape Validation Program
J. Thomson and M. J. Galitzen
NASA Code 311-03-14-52

A Reexamination of the Subcarrier Demodulator Assembly Data Limiter Suppression Factor
L. Kuo and L. Webster
NASA Code 311-03-14-52

PROGRAM PLANNING

TDA Planning

Network Control System Project Block III Software
S. E. Friesema, J. Blackstock, T. Gee, N. Hammerwold, A. Irvine, N. Larson, and J. Williams
NASA Code 311-03-32-40

Quality Assurance

Extension of Automatic Flow Charting Capabilities
R. J. Margolin and W. O. Paine
NASA Code 311-03-32-20

Bibliography


The research described in this publication was carried out by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. Reference herein to any specific commercial product, service, process, or service by trade name, trademark, manufacturer, or otherwise, does not constitute or imply its endorsement by the United States Government or the Jet Propulsion Laboratory, California Institute of Technology.


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