The way in which the chunking behaviour of MAKEMAP is recorded, described in previous post ("Recovering the number of chunks used by makemap" ), has been changed. The SMURF extension of the output map created by MAKEMAP no longer contains an NCHUNK item. Instead, the FITS extension of the map contains a pair of headers as follows:
- NCONTIG: An integer giving the number of contiguous chunks of data within the supplied input time-stream data files. This number does not include any chunking performed because of low memory and will usually be 1 if a single observation is supplied as input.
- MEMLOW: A boolean value which is TRUE if the data was split into chunks due to the computer having insufficient memory.