Pressure

Some observatories have accurate information available on atmospheric pressure. If it is routinely available for every measurement, it should go in a column labelled PRESSURE, with the SI unit kPa. Note that pressures read from aneroid (dial-type) barometers are not very accurate, and probably should not be used. Only absolute pressures should be recorded, not values ``corrected to sea level''.

 

Column Label Contents Units Variable Type Format

RAWMAG object measurement magnitudes R*4 real Fw.d

SKYRA sky measurement position degrees R*4 real F4.1

SKYDEC sky measurement position degrees R*4 real F4.1

SKYOFFSETALT sky measurement position arcsec R*4 real F4.0

SKYOFFSETAZ sky measurement position arcsec R*4 real F4.0

FILTTEMP filter temperature see text R*4 real F4.1

DETTEMP detector temperature see text R*4 real F4.1

DOMETEMP dome temperature see text R*4 real F4.1

RELHUM relative humidity per cent R*4 real F4.1

PRESSURE atmos. pressure kPa R*4 real F4.1

DIAPHRAGM field stop code C*4 string A4

PMTVOLTS PMT high voltage C*4 string A4

GENEVA_Q Geneva Q parameter R*4 real E9.2

GENEVA_R Geneva R parameter R*4 real E9.2

GENEVA_G Geneva G parameter R*4 real E9.2

SEEING seeing value see text C*4 string A4

ESTERR estimated error see text R*4 real Fw.d