Abstract
view Abstract Citations (4) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Occultation of a Compact Radio Source by Venus Linfield, R. P. Abstract The position of Venus in the radio reference frame was measured on the basis of an observation of an occultation of the compact radio source P0507 + 17 by Venus on July 19, 1988. By comparing model light curves to the observed light curves for both ingress and egress, the frame-tie offsets Delta(lambda) and Delta(beta) (ecliptic longitude and latitude) were determined. The solution for both Delta(lambda) and Delta(beta) gave results consistent with zero offsets, but with an error of about 0.2 arcsec. The egress light curve alone yielded higher accuracy for a linear combination of Delta(lambda) and Delta(beta): Delta(lambda) + 0.51 Delta(beta) = 0.026 +/-0.04 arcsec. Publication: The Astronomical Journal Pub Date: August 1992 DOI: 10.1086/116282 Bibcode: 1992AJ....104..880L Keywords: Radio Occultation; Radio Sources (Astronomy); Venus (Planet); Very Long Base Interferometry; Computational Astrophysics; Light Curve; Planetary Ionospheres; Solar Wind; Astronomy; OCCULTATIONS; PLANETS AND SATELLITES: VENUS full text sources ADS | data products SIMBAD (2)
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