readpp

       Read PHA-spectrum from a OGIP-conformant PHA2-file. The file
       format has been defined in OGIP memo ...

       High energy astrophysics

       readpp,phase,rate,rateerr,channel,phafile

       channel : Channel number(s) to use for the returned count(-err)
                 Either a single number, or a 2-dim array which is
                 interpreted as [cmin,cmax].
                 (Note: this is compared to the SPEC_NUM column and not
                        necessarily equal to the row number)
       phafile : Name of the file to read from

       none

       see the list under optional outputs
       verbose   : Be talkative
       mjd       : Calculate tstart,tstop in MJD instead of JD

       phase   : array of pulse phase values
       rate    : count rates in each phasebin
       rateerr : uncertainty of the countrate per phasebin

       exposure  : exposure time per phasebin
       telescope : ID of telescope
       instrument: ID of instrument
       filter    : filter used
       object    : name of observed object
       ra,dec    : position of observed object (degrees!), implies:
       equinox   :     equinox os coordinate
       radecsys  :     coordinate-frame used
       date_obs  : start-time (dd/mm/yy), UTC, implies
       time_obs  :     start-time (hh:mm:ss), UTC
       date_end  :     end-time (dd/mm/yy), UTC
       time_end  :     end-time (hh:mm:ss), UTC
       tstart,tstop: the above in JD (or in MJD if mjd keyword is set)
       origin    : institution where file originates from

       none

       none

       * All spectra in PHA-II table must have same channels
       * Rather complex tool
       * Very limited error handling

       just read it!!!!!!

       not needed

       Version 1.0: 1999/11/10, PK
                    first version, based on readpha2.pro V1.1

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