No implementation found for style `ifthen'

The astro.aux file was not found, so sections will not be numbered 
and cross-references will be shown as icons.

No number for "Observatoriesknownbythe<SPANstyle="font-family:monospace">OBSERVATORY</SPAN>command.Forinterferometer,thecoordinatescorrespondtothearraycenter.Thefirstpartofthistableliststhemillimeterinstruments:anantennadiameterisdefined,tobeusedtocomputeangularresolutionandplanetbrightnesstemperatures."

No number for "Exampleofplotproducedby<SMALL>ASTRO</SMALL>:plottingsourcepositionsandsunavoidancecircleinanhorizontalframe."

No number for "Exampleofplotproducedby<SMALL>ASTRO</SMALL>:plottingsourcepositionsinanhorizontalframecenteredonzenithposition."

No number for "Exampleofplotproducedby<SMALL>ASTRO</SMALL>:findingphasecalibratorsinthevicinityofNGC7027."

No number for "Plottingnorthernskyconstellations."

No number for "Plottinganobservabilitychart."

No number for "PlateaudeBurefrequencycoverage:ouptutof<SPANstyle="font-family:monospace">LINEtest100LSB</SPAN>.BoththeLSBandUSBfrequencycoveragesaredisplaye."

No number for "PlateaudeBurefrequencycoverage:ouptutofLINE;NARROW;SPECTRALcommands."
