Ionospheric refraction in radio source observations at long radio wavelengths

Details Ionospheric refraction in radio source observations at long radio wavelengths Ionospheric refraction in radio source observations at long radio wavelengths

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984japa....5...55e&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 5, March 1984, p. 55-65.

Astronomy and Astrophysics

Astronomy

14

Astrometry, Astronomical Coordinates, Long Wave Radiation, Radio Sources (Astronomy), Radio Telescopes, Radio Wave Refraction, Astronomical Maps, Calibrating, Ionospheric Propagation, Root-Mean-Square Errors

Scientific paper

Ionospheric refraction effects encountered in radio source observations in the 30 to 75 MHz range with the Clark Lake TPT telescope are discussed. It is found that simple calibration procedures are sufficient to provide positions of unknown sources with an accuracy of approximately one arcmin. Observations made near sunrise, or during disturbed ionospheric conditions must be discarded. If no corrections are applied, RMS errors of a few arcmin are to be expected.

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