Here's the deal Bob.
At this page you can get the details of the camera color coding.
http://berlinadmin.dlr.de/Missions/express/kamera/aufnahmetechnik4eng.html
750nm +/- 20nm ->Red (730-770) NearIR?!?!?
530nm +/- 45nm ->Green (485-575)
440nm +/- 45nm ->Blue (395-485) A teensy weensy of NearUV.
If this is true, what they're coding as red is out of the normal visible range. It may be that it doesn't make any difference but I'm thinking they mean (630-670). Maybe not, anyone care to explain?
The deal is, for green and blue it's taking nearly 1/3rd of the visible spectrum (90nm) and coding that as a single color! Usually ~1nm. This with the funky red channel doesn't make for realistic images IMHO.