Aspects of Job Scheduling

1979 ◽  
Vol 101 (1) ◽  
pp. 17-22 ◽  
Author(s):  
K. Phillips
Keyword(s):  
Job Scheduling ◽  
Scheduling Problem ◽  
Deep Space Network ◽  
Fundamental Parameters ◽  
Space Network ◽  
Plant Operations ◽  
Mathematical Algorithms ◽  
Partitioning Problems ◽  
Combinatorial Methods ◽  
Operational Aspects

A mathematical model for job scheduling in a specified context is presented. The model uses both linear programming and combinatorial methods. While designed with a view toward optimization of scheduling of facility and plant operations at the Deep Space Network (DSN) Station at Goldstone, the context is sufficiently general to be widely applicable. The general scheduling problem including options for scheduling objectives is discussed and fundamental parameters identified. Mathematical algorithms for partitioning problems germaine to scheduling are presented. A more detailed description of algorithms and of operational aspects of the model is planned for a later report.

scholarly journals Scheduling the NASA Deep Space Network with Deep Reinforcement Learning

2021 ◽  
Author(s):  
Edwin Goh ◽  
Hamsa Shwetha Venkataram ◽  
Mark Hoffmann ◽  
Mark D. Johnston ◽  
Brian Wilson
Keyword(s):  
Reinforcement Learning ◽  
Deep Space ◽  
Deep Space Network ◽  
Space Network

scholarly journals Deep Space Network Scheduling via Mixed-Integer Linear Programming

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 39985-39994
Author(s):  
Alex Sabol ◽  
Ryan Alimo ◽  
Farhad Kamangar ◽  
Ramtin Madani
Keyword(s):  
Linear Programming ◽  
Integer Linear Programming ◽  
Mixed Integer Linear Programming ◽  
Mixed Integer ◽  
Deep Space ◽  
Network Scheduling ◽  
Deep Space Network ◽  
Space Network

Two Stage Gain Magnification in Beam Wave Guide Feed of Indian Deep Space Network (IDSN-32) Station

2012 ◽  
Vol 60 (7) ◽  
pp. 3481-3484
Author(s):  
V. V. Srinivasan ◽  
C. Kumar ◽  
D. Bhatnagar ◽  
V. K. Lakshmeesha ◽  
S. Pal
Keyword(s):  
Wave Guide ◽  
Deep Space ◽  
Two Stage ◽  
Deep Space Network ◽  
Beam Wave ◽  
Space Network

scholarly journals The JPL 1986–3 Extragalactic Reference Frame

1988 ◽  
Vol 133 ◽  
pp. 461-464
Author(s):  
O.J. Sovers ◽  
C.D. Edwards ◽  
C.S. Jacobs ◽  
G.E. Lanyi ◽  
R.N. Treuhaft
Keyword(s):  
Rotation Axis ◽  
Time Variability ◽  
Radio Sources ◽  
Dual Frequency ◽  
Deep Space Network ◽  
Space Network ◽  
Celestial Sphere ◽  
Almost All ◽  
Comparable Quality

Intercontinental dual-frequency radio interferometric measurements were carried out during 1978 to 1985 between NASA's Deep Space Network stations in California, Spain, and Australia. Analysis of 6800 pairs of delay and delay rate observations made during 51 sessions produced a catalog of positions of 106 extragalactic radio sources, fairly uniformly distributed over the celestial sphere between −45° and +85° declination. Almost all of the resulting source positions have formal uncertainties between 0.5 and 3 milliarcseconds, with their distributions peaking somewhat below 1 mas. Root-mean-square uncertainties are 2.1 and 2.0 mas for RA and declination, respectively. Evidence is found for a long-term drift of the Earth's rotation axis in inertial space, relative to the 1984 IAU precession and nutation models. Tests for time variability of positions of 32 frequently observed sources place limits at the 1 mas/yr level. Comparisons with independently determined source catalogs of comparable quality show differences of positions of common sources that amount to a few mas, and may indicate the level of systematic errors in VLBI source position measurements.

scholarly journals Cost sharing in a job scheduling problem

2006 ◽  
Vol 29 (3) ◽  
pp. 369-382 ◽  
Author(s):  
Debasis Mishra ◽  
Bharath Rangarajan
Keyword(s):  
Cost Sharing ◽  
Job Scheduling ◽  
Scheduling Problem ◽  
Job Scheduling Problem

Mission set analysis tool for assessing future demands on NASA's Deep Space Network

2009 ◽  
Author(s):  
Bruce E. MacNeal ◽  
Douglas S. Abraham ◽  
Rolf C. Hastrup ◽  
Janet P. Wu ◽  
Richard J. Machuzak ◽  
...  
Keyword(s):  
Analysis Tool ◽  
Deep Space ◽  
Deep Space Network ◽  
Space Network ◽  
Future Demands

scholarly journals Erratum: “Discovery of Water Maser Emission in Eight AGNs with 70 m Antennas of NASA’s Deep Space Network” (ApJ, 638, 100 [2006])

2006 ◽  
Vol 649 (1) ◽  
pp. 561-561 ◽  
Author(s):  
P. T. Kondratko ◽  
L. J. Greenhill ◽  
J. M. Moran ◽  
J. E. J. Lovell ◽  
T. B. H. Kuiper ◽  
...  
Keyword(s):  
Deep Space ◽  
Deep Space Network ◽  
Maser Emission ◽  
Space Network ◽  
Water Maser
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