The Deep Space Network Progress Report 42-34

May and June 1976


August 15, 1976

NASA Logo
National Aeronautics and
Space Administration

Jet Propulsion Laboratory
California Institute of Technology
Pasadena, California


Contents

Preface

DESCRIPTION OF THE DSN

Network Functions and Facilities
N. A. Renzetti

MISSION SUPPORT

Ongoing Planetary/Interplanetary Flight Projects

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

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

SUPPORTING RESEARCH AND TECHNOLOGY

Communications - Spacecraft/Ground

Foldover Effects on Viterbi Decoding
J. K. Omura and S. A. Burman
NASA Code 310-20-67-08

Computation of Spacecraft Signal Raypath Trajectories Relative to the Sun
A. R. Cannon and C. T. Stelzried
NASA Code 310-20-66-06

Station Control and Operations Technology

Telecommunications Division Fourth Harmonic Power Analyzer
C. Foster
NASA Code 310-30-68-11

Decoding with Multipliers
L. D. Baumert, R. J. McEliece, and G. Solomon
NASA Code 310-30-69-10

Network Control and Data Processing

MODC2 Procedures for Assembly of MODCOMP-II Programs Using the Sigma-5 Assembler
J. W. Layland
NASA Code 310-40-72-02

Biplex Pipelined FFT
R. F. Emerson
NASA Code 310-40-72-04

NETWORK AND FACILITY ENGINEERING AND IMPLEMENTATION

Network

Viking Telecommunication Effects of GEOS Satellite Interference Based on Testing at the Madrid Deep Space Station
F. V. Stuhr, S. S. Kent, J. L. Galvez, B. G. Luaces, G. R. Pasero, and J. M. Urech
NASA Code 311-03-42-90

Network Operations Control Center

DSN Standard Interface Adapter and Buffer Assembly Used in the Mark III Data System
T. Anderson
NASA Code 311-03-42-53

Deep Space Stations

A New Sequential Decoder for the DSN Telemetry Subsystem
J. H. Wilcher
NASA Code 311-03-41-01

Antenna Pointing Subsystem Conscan Implementation
R. Tappan
NASA Code 311-03-42-54

High Performance Flat Plate Solar Collector
F. L. Lansing and R. Reynolds
NASA Code 311-03-41-08

OPERATIONS

Network Operations

An MBASIC Application Program for Relational Inquiries on a Database
R. M. Smith
NASA Code 311-03-14-64

Maximum Likelihood Convolutional Decoding (MCD) Performance Due to System Losses
L. Webster
NASA Code 311-03-14-20

DSN Research and Technology Support
E. B. Jackson
NASA Code 311-03-15-30

Use of "Load and Go" Countdowns by the DSN Deep Space Stations
J. T. Hatch
NASA Code 311-03-14-20

PROGRAM PLANNING

TDA Planning

Aspect of Job Scheduling
K. Phillips
NASA Code 311-03-32-10

Dynamic Modeling for Evaluation of Solar Collector Performance
C. L. Hamilton
NASA Code 311-03-31-30

Toward a Mathematical Model of Solar Radiation for Engineering Analysis of Solar Energy Systems
C. L. Hamilton and M. S. Reid
NASA Code 311-03-31-30


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.


Home