"- That looks better, but it still doesn't match\n",
"- Is there a systematic difference between the two?\n",
"- **TODO:** Check - could it be that the 10-min interval means are \"shifted\"? (e.g. not an average of minutes 00-10, 10-21 etc, but rather 05-15, 15-25..?)\n",
"- Even if, that still doesn't resolve the issue with calibration coefficients - the relationship between mV and W/m^2 is NOT linear and that means that I can't process the 1-minute data"