tr><td><strong>Case</strong></td><td><strong>Mfr.</strong></td><td><strong>Instr.</strong> <strong>Orient.</strong></td><td><strong>H</strong></td><td><strong>P</strong></td><td><strong>R</strong></td><td><strong>S</strong></td><td><strong>F</strong></td><td><strong>M</strong></td><td>1</td><td>RDI</td><td>ADCP</td></tr><tr><td>up</td><td>H</td><td>arctan(tan(P)*cos(R))</td><td>R</td><td>-X</td><td>Y</td><td>-Z</td><td>2</td><td>RDI</td><td>ADCP</td><td>down</td><td>H</td></tr><tr><td>arctan(tan(P)*cos(R))<