Seismic Auxiliary Channel auxiliaryType extAuxiliaryType refinedAuxiliaryType refinedExtAuxiliaryType POSC 1.0 time break An auxiliary information about the time break - the shot instant or time at which the seismic wave was generated. uphole The auxiliary information that gives the uphole time - appropriate for shots generated in a drillhole. sweep The auxiliary information that records the vibrator sweep. timing water break the auxiliary information that gives the information of the direct arrival of a marine source event to a water break detector. external data