NEW OUTPUT FILE
    Running  'poa_calfos'  will  produce  a  '.poa'  output  file.   The 
    following  is  a  list  of POA related "keywords" keywords which are
    written to this file,  for  every  spectrum  in  the  dataset  being
    processed.   The values are calculated when running 'poa_calfos'; as
    such  they  are  a  measure  of  the  new  re-calibration  algorithm 
    parameters/results/final  offsets/etc.   Please  read  the  OFF_CORR 
    section below for information on how  these  keywords  are  used  to
    make the POA GIMP correction.
    
      The format of the '.poa' file is as follows:
         FOS_MODE_NAME_ABBREVIATED=  SPECTRAL_NUM,  KEYWORD=  VALUE
    
      For example:
         SPECT=   1, MIDTIMP=  50469.157141902
         SPECT=   1, POAXP=    753.074
         ...
         SPECT=   2, OFF_DIOD=  -2.116
         SPECT=   2, OFF_PIX=  -2
    
    
    Here is a list of the POA KEYWORDS in the '.poa' output file:
    
    Epoch of midpoint of integration:
    
    MIDTIMP                             Unit:MJD
    
    
    Greenwich Mean Sideral Time:
    
    GMSTP                               Unit:HRS
    
    
    Geocentric Longitude:
    
    GLNGP                               Unit:DEG
    
    
    Geocentric Latitude:
    
    GLATP                               Unit:DEG
    
    
    Dipole Magnetic Longitude:
    
    MLNGP                               Unit:DEG
    
    
    Dipole Magnetic Latitude:
    
    MLATP                               Unit:DEG
    
    
    Associated IGMF Magnetic Longitude:
    
    ALNGP                               Unit:DEG
    
    
    Associated IGMF Magnetic Latitude:
    
    ALATP                               Unit:DEG
    
    
    Geomagnetic Shell Parameter:
    
    LSHP                                Unit:
    
    
    Position in orbit at MIDTIMP epoch:
    
    POAXP                               Unit:km 
    
    POAYP                               Unit:km
    
    POAZP                               Unit:km 
    
    
    Velocity in orbit at MIDTIMP epoch:
    
    VXP                                 Unit:km/s 
    
    VYP                                 Unit:km/s 
    
    VZP                                 Unit:km/s 
    
    
    Geomagnetic model (North, East, Down):
    
    BNP                                 Unit:Gauss 
    
    BEP                                 Unit:Gauss 
    
    BDP                                 Unit:Gauss 
    
    
    Magnetic field in magnetometer coordinates:
    
    BV1P                                Unit:Gauss
    
    BV2P                                Unit:Gauss
    
    BV3P                                Unit:Gauss
    
    
    Magnetic field in detector coordinates:
    
    BDXP                                Unit:Gauss
    
    BDYP                                Unit:Gauss
    
    BDZP                                Unit:Gauss
    
    
    YGMP scale factors:
    
    YGMPXSCL                            Unit:pix/Gauss
    
    YGMPYSCL                            Unit:diode/Gauss
    
    
    GIMP related offsets:
    
    YOFFXP                              Unit:pix 
    
    YOFFYP                              Unit:diode height
    
    
    Reference YBASE of wavelength calibration:
    
    YYBASE0                             Unit:ybases 
    
    
    Delta Ybase X scale factor:
    
    YYBSXSCL                            Unit:pix/ybases
    
    
    Mean temperature:
    
    YMEANTMP                            Unit:deg(C) 
    
    
    Temperature X scale factor:
    
    YTMPXSCL                            Unit:pix/deg(C)
    
    
    Aperture/Grating/Mode specific zero point:
    
    YAPGRTX0                            Unit:pix
    
    
    Velocity components in detector coordinates:
    
    PVX                                 Unit:km/sec
    
    PVY                                 Unit:km/sec
    
    PVZ                                 Unit:km/sec
    
    
    POA GIMP shift correction in X:
    
    OFF_DIOD                            Unit:diodes
    
    OFF_PIX                             Unit:pix