The Deep Space Network Progress Report 42-56

January and February 1980


April 15, 1980

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

DSN Telemetry System: Design for Megabit Telemetry
E. C. Gatz
NASA Code 311-03-43-10

DSN Tracking System, Mark III-1979
G. L. Spradlin
NASA Code 311-04-31-01

DSN VLBI System MK 1-80
W. D. Chaney and N. C. Ham
NASA Code 311-04-31-01

MISSION SUPPORT

Ongoing Planetary/Interplanetary Flight Projects

DSN Load Forecasting for Proposed Future NASA Mission Sets
W. A. Webb
NASA Code 311-03-25-00

Viking Orbiter Completion Mission and Viking Lander Monitor Mission
R. L. Gillette
NASA Code 311-03-22-50

RADIO ASTRONOMY

Radio Astronomy
R. M. Taylor
NASA Code 311-03-21-00

SUPPORTING RESEARCH AND TECHNOLOGY

Tracking and Ground-Based Navigation

X-Band Uplink Ground Systems Development
R. Hartop, C. Johns, and R. Kolbly
NASA Code 310-10-64-10

VLBI Detection of Crustal Plate Motion Using DSN Antennas as Base Stations
D. D. Morabito, E. S. Claflin, and C. J. Steinberg
NASA Code 310-10-61-10

Communications - Spacecraft/Ground

A Bent Pipe Design for Relaying Signals Received by an Orbiting Deep Space Relay Station to a Ground Station
M. A. Koerner
NASA Code 310-20-65-03

Arithmetic Techniques Used in the High-Speed Front End of the Multimegabit Telemetry Modem
E. R. Wechsler
NASA Code 310-20-67-16

Sensitivity of Reflector Backup Structure Weight to Variable Wind Speed Loadings
R. Levy and D. Strain
NASA Code 310-20-65-07

Station Control and Operations Technology

Analysis of a Class of Totally Self-Checking Circuits Implemented in an NMOS Custom LSI Structure
M. W. Sievers
NASA Code 310-30-70-15

Pulse-Position-Modulation Coding as Near-Optimum Utilization of Photon Counting Channel with Bandwidth and Power Constraints
R. G. Lipes
NASA Code 310-30-70-14

NETWORK AND FACILITY ENGINEERING AND IMPLEMENTATION

Network

Deep Space Network Control Room Noise and Vibration Study
J. C. Rayburn
NASA Code 311-03-13-32

A Fast Algorithm for Encoding the (255, 223) Reed-Solomon Code Over GF (28)
R. L. Miller, T. K. Truong, and I. S. Reed
NASA Code 311-03-43-20

Ground Communications

Maximum CW RFI Power Levels for Linear Operation of the DSN Block IV Receiver at S-Band Frequencies
D. R. Hersey and M. K. Sue
NASA Code 311-06-50-00

Deep Space Stations

General Sensitivity Analysis of Solar Thermal-Electric Plants
F. L. Lansing, E. W. Hayes, and C. S. Yung
NASA Code 311-03-41-08

Experimental Investigation of the Effects of Antenna Pointing Errors on Range Delays (Part II)
T. Y. Otoshi
NASA Code 311-03-42-55

OPERATIONS

Network Operations Control Center

Network Operations Control Center (NOCC) Implementation Status Report
E. A. Garcia
NASA Code 311-03-12-00


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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