SGP/SIRS/E5 - anomalously low NIP readings

Direct normal (NIP instrument) irradiance readings fall anomalously on 3/17 18:43GMT to 
less than half the expected values during clear sky conditions.  NIP readings returned to 
normal on 3/28/04 12:00. Maintenance on 3/29/04 19:48 revealed no unusual contaminents. 
Precipitation on 3/27 (measured by the SMOS system) probably cleared the NIP window of 
contaminents before scheduled maintenance.

disregard this data

• short_direct_normal
• short_direct_normal_min
• short_direct_normal_std
• short_direct_normal_max

• inst_direct_normal

• Raw data stream - documentation not supported