NSA/GNDRAD/C1 - Unreasonable/missing PIR data due to maintenance

During this period, there are data gaps and the data that were
collected are unreasonable.  Instrument maintenance was being
performed

• PSP1 unshaded minimum(psp1_min)
• NET mean(net_mean)
• PSP1 mean(psp1_mean)
• NET standard deviation(net_sd)
• PIR1 minimum(pir1_min)
• PSP1 maximum(psp1_max)
• Net Radiation, Standard Deviation(net_std)
• Net Radiation(net)
• Net Radiation, Maxima(net_max)
• PIR1 unshaded standard deviation(pir1_sd)
• NET minimum(net_min)
• PIR1 unshaded maximum(pir1_max)
• PIR1 mean(pir1_mean)
• PSP1 unshaded standard deviation(psp1_sd)