Files names and extensions used for COS (L)

 

  fileids STSDAS Suffix Type Contents Examples
Raw data files
LXXXXXXXX_RAWTAG _rawtag table Raw NUV TIME-TAG events list LA7T02RTQ_RAWTAG
LXXXXXXXX_RAWTAG_A _rawtag_a table Raw FUV TIME-TAG events list LB3Z04SWQ_RAWTAG_A
LXXXXXXXX_RAWTAG_B _rawtag_B table Raw FUV TIME-TAG events list LB3Z04SWQ_RAWTAG_B
LXXXXXXXX_RAWACCUM _rawaccum image Raw NUV ACCUM image LA8P01E0Q_RAWACCUM
LXXXXXXXX_RAWACCUM_A _rawaccum_a image Raw FUV ACCUM image LAAF1AJ5Q_RAWACCUM_A
LXXXXXXXX_RAWACCUM_B _rawaccum_b image Raw FUV ACCUM image LAAF1AJ5Q_RAWACCUM_B
LXXXXXXXX_RAWACQ _rawacq image/table Raw acquisition file LA8P91ANQ_RAWACQ
LXXXXXXXX_PHA_A _pha_a image Pulse height distribution LAAF1AJ5Q_PHA_A
LXXXXXXXX_PHA_B _pha_b image Pulse height distribution LAAF1AN8Q_PHA_B
LXXXXXXXX_ASN _asn table Association file LABP010C0_ASN
LXXXXXXXX_SPT _spt image Support, planning & telemetry information LAAF1AN8Q_SPT
LXXXXXXXX_TRL _trl table Trailer file (input); historical record of generic conversion LAAF1AN8Q_TRL
LXXXXXXXX_JIT _jit table Contains spacecraft pointing data averaged over 3 s intervals LAAF1AN8Q_JIT
LXXXXXXXX_JIF _jif image Two-Dimensional histogram of the _jit file LAAF1AN8Q_JIF
Calibrated data files
LXXXXXXXX_CORRTAG _rawtag table NUV TIME-TAG events list with calibrated values LA7T02RTQ_CORRTAG
LXXXXXXXX_CORRTAG_A _corrtag_a table FUV TIME-TAG events list with calibrated values LB3Z04SWQ_CORRTAG_A
LXXXXXXXX_CORRTAG_B _corrtag_b table FUV TIME-TAG events list with calibrated values LB3Z04SWQ_CORRTAG_B
LXXXXXXXX_FLT _flt image NUV Flatfielded science image LABP01G5Q_FLT
LXXXXXXXX_FLT_A _flt_a image FUV Flatfielded science image LB3Z04SWQ_FLT_A
LXXXXXXXX_FLT_B _flt_b image FUV Flatfielded science image LB3Z04SWQ_FLT_B
LXXXXXXXX_LAMPFLASH _lampflash table 1-D extracted TAGFLASH (FLASH=yes) spectra LB3Z04SWQ_LAMPFLASH
LXXXXXXXX_X1D _x1d table 1-D extracted spectra for a single exposure LB3Z04SWQ_X1D
LXXXXXXXX_X1DSUM[1-4] _x1dsum[1-4] table Averaged 1-D extracted spectra for multiple exposures with the same grating, central wavelength, aperture and FP-POS=[1-4] LAAF1A0B0_X1DSUM3
LXXXXXXXX_FLTSUM _fltsum image Summed flat-fielded image (imaging only). Final calibrated association product for all COS imaging datasets LABP010C0_FLTSUM
LXXXXXXXX_X1DSUM _x1dsum table Final combined 1-D extracted spectra for multiple exposures with the same grating, central wavelength and aperture combining all FP-POS. Final calibrated association product for all COS spectroscopic datasets. LAAF1A0B0_X1DSUM

For more information please refer to the COS instrument page at the STScI