[bojan]

I managed to obtain sensible video scan this morning in IR part (starts as narrow transversal line, gets wider and wider, then after a while starts to shrink until it disappears as Sun disk is traveling over the spectrometer slit), but apparently the focus is still not quite OK.
The mount I was using for this experiment (EQ3-2) has limited controls (only tracking), and unfortunately my LXD75 in at Mount Pleasant.. so the adjustment of the whole setup was fiddly, and sunlight glare on the lap screen didn't help either.
Anyway, now I have first-hand experience about what else needs to be done to make this procedure more comfortable (proper mount under full remote control, sun shade for lap, comfortable chair etc..).


The fat line on the spectrum below is at ~750 nm (according to dial on the spectrometer - I am not sure how accurate it is in IR since it is calibrated for visual), most likely O2 band (760 nm)

And yes, I have to clean the sensor...