Physics
Scientific paper
Apr 1969
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969natur.222..253g&link_type=abstract
Nature, Volume 222, Issue 5190, pp. 253 (1969).
Physics
1
Scientific paper
IN 1966 we listed1 the positions of radio sources determined by the interferometer at the Royal Radar Establishment2 operating at a frequency of 610 MHz. Since then the interferometer has been converted to operate at 2,695 MHz, to give both increased sensitivity and greater accuracy. During 1968 and January 1969, observations were made on about sixty selected radio sources to investigate phase stability, to determine the interferometer constants and to obtain accurate source positions. Each source was observed on at least four different days and a mean phase taken: this ensured that atmospheric phase variations had at most a small effect on the measurement precision of the interferometer.
Adgie R. L.
Crowther J. H.
Gent H.
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