TABLE  PreviousNightlyExt

Contains nightly extinction values calculated previously for runs.

This table contains, for every combination of filters/observing nights,
the nightly extinction values calculated previously for runs
of a constrained, global photometric solution.

Required constraints:
  • Primary key is (julianDayNum,filterID,versNum)
  • (julianDayNum,filterID) references MultiframeSetUp(julianDayNum,filterID)
  • (versNum) references PhotCalVers(versNum)

NameTypeLengthUnitDescriptionDefault ValueUnified Content Descriptor
julianDayNumint4Julian daysthe Julian Day number of the UKIRT night {image primary HDU keyword: UTDATE} TIME_DATE
filterIDtinyint1 the internal WSA filter UID INST_FILTER_CODE
versNumint4 the version number of the calibration ID_VERSION
cuEventIDint4 UID of curation event giving rise to this record REFER_CODE
coeffAfloat8 the first-order extinction coefficient PHOT_ATM_EXT
icoeffAtinyint1 Is coeffA FIXED or FITTED1 
coeffBfloat8 the second-order extinction coefficient PHOT_ATM_EXT
icoeffBtinyint1 Is coeffB FIXED or FITTED1 
coeffCfloat8 colour dependent extinction coefficient PHOT_ATM_EXT
icoeffCtinyint1 Is coeffC FIXED or FITTED1 
Total length40