Year = 2008 Month = December Day = 18 Day-of-year = 353 Site = Poker_Flat Sunrise = 20:06 Sunset = 23:26 Moonrise = 08:22 Moonset = 21:24 Moon_age = 20 Aurora = Quiet - Arcs clearly visible, but mostly north of zenith Cloud = Variable, but generally good Magnetometer = Very quiet ASC = Unknown Digital_ASC = Unknown MSP = Ran all night on all channels SDI = Partial coverage of good data Comments = SDI data look ok, although the instrument stopped for about 6 hours because IDL was hung. As a result of this, I finally got around to setting up a watchdog program that runs every 3 minutes to check if the data acquisition program is still executing. If its hung, the watchdog kills it and starts a new instance. MC