UPA18 McKinley High School Honolulu, Oahu, Hawaii Latitude 21.3 deg. N Longitude 157.8 deg. W Array Tilt 8 deg. (from horizontal) Array Azimuth 199 deg. (0 deg. is north) REV: Revision number of the datalogger program YR: Year (YYYY) JD: Julian Day of the Year (1-365) HM: Time of Day (0100-2400) ATC: Ambient temperature (degrees Celsius) POA: Plane of Array solar irradiance (watts per square meter) WS: Wind speed (meters per second) PV: AC power output (kilowatts) Vbat: data acquisition system battery voltage (volts) Data missing from December 1-31,2009 due to problems with data retreival equipment. REV YR JD HM ATC POA WS PV Vbat