Add image times used in averages to subtraction FITS header

[jburkepile]

The new subtraction code creates a subtraction every 30 seconds. If there are no data gaps, the subtraction is created by averaging 2 adjacent images (<=16 seconds apart) for both the foreground and the background image.

Please save the times used in the averages in the FITS header.

• Create variables to store 2 image times in hh:mm:ss

• Create a string that stores the 2 image times 'hh:mm:ss hh:mm:ss'

• UseFXADDPAR to write the label to a new FITS keyword 'AVGTIME0', e.g.:

  fxaddpar, goodheader,'AVGTIME0', labelstring,' Img times used in avg'
  

[mgalloy]

So there should be an AVGTIME0 (for the background image) and an AVGTIME1 (for the foreground image)?

[mgalloy]

@jburkepile says:

Thanks asking that. I left that out entirely. You are exactly right. AVGTIME0 can be the 2 times used to make the background image and AVGTIME1 the 2 times used to make the foreground image. Obviously when there is a data gap, there will be only 1 image (no averaging).
Thanks very much!