In describing the tracking motion of an AZ-EL or ALT-AZ mounted radio telescope, to "plunge" means to exceed 90° in elevation and then to continue tracking as elevation decreases on the other side without swiveling around in azimuth. This is not a capability of DSN antennas.
‘Baby asteroid’ just a toddler in space years, researchers say
'Baby asteroid' just a toddler in space years, researchers say by James Dean for Cornell Chronicle Ithaca NY (SPX) May...