Sentence:  The measurements made with the NRL 50 - foot reflector , which is altitude azimuth mounted , would have shown a systematic change with local hour angle in the measured intensities of Venus and Jupiter if a substantial part of the <WSD>radiation</WSD> had been linearly polarized . 
Meaning of the word marked with <WSD> tags:  energy that is radiated or transmitted in the form of rays or waves or particles