Filterbank format FE Data

http://seti.berkeley.edu/FlysEyeData

FITS format FE Data

Below is an example of the .fits header for an observation of the Crab pulsar. FITS keywords KEY0-19 have been taken directly from the sigproc 'filterbank' format source, keyword KEY20 indicates which ATA antenna was used for the observation. Note the frequency convention indicated by KEY8, KEY9: high frequency channels come first.

SIMPLE  =                    T
BITPIX  =                    8
NAXIS   =                    2
NAXIS1  =                  128
NAXIS2  =              5808628
HISTORY  Pixels from file crabibob05B.fil.raw
COMMENT  FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT  and Astrophysics' vol 376, page 359; bibcode 2001A&A...376..359H.
KEY0    = 'crabibob05B.fil'    / Data file
KEY1    =                  325 / Header size (bytes)
KEY2    =            743504384 / Data size (bytes)
KEY3    = 'filterbank (topocentric)' / Data type
KEY4    = 'ATA     '           / Telescope
KEY5    = 'FLYEYE  '           / Datataking Machine
KEY6    =           05:34:32.0 / Source RA (J2000)
KEY7    =          +22:00:52.0 / Source DEC (J2000)
KEY8    =          1535.676800 / Frequency of channel 1 (MHz)
KEY9    =            -1.638400 / Channel bandwidth      (MHz)
KEY10   =                  128 / Number of channels
KEY11   =                    0 / Number of beams
KEY12   =                    0 / Beam number
KEY13   =   54540.188617546562 / Time stamp of first sample (MJD)
KEY14   = '2008/03/15'         / Gregorian date (YYYY/MM/DD)
KEY15   =            625.00000 / Sample time (us)
KEY16   =              5808628 / Number of samples
KEY17   =                  1.0 / Observation length (hours)
KEY18   =                    8 / Number of bits per sample
KEY19   =                    1 / Number of IFs
KEY20   = '1D.x    '           / ATA Antenna
END

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Pointed

1 Hour Crab Observation - 2008/03/15, MJD: 54540.19

FE Mode (sidereal drift)