Color images produced using Trilogy
    http://www.stsci.edu/~dcoe/trilogy/

    Color FITS images may be loaded into ds9 via:
      Scale -- Linear, Min Max
      Frame -- New Frame RGB
      File -- Open Other -- Open RGB Fits Image...
    
spt0615-57.png
B = F435W
G = F606W + F814W
R = F105W + F125W + F140W + F160W

spt0615-57_acs.png
B = F435W
G = F606W
R = F814W

spt0615-57_ir.png
B = F105W
G = F125W + F140W
R = F160W