Year = 1999
Month = January
Day = 20
Day-of-year = 020
Site = Poker Flat
Sunrise = 19:22
Sunset = 00:38
Moonrise = 20:02
Moonset = 04:13
Moon_age = 3
Aurora = Active - One or more breakups occurred
Cloud = Extremely clear all night
Magnetometer = Active
ASC = Long moondown, ran OK
MSP = Ran all night on all channels
VHF_radar = Good data coverage for the entire 24 hours
Electrojet = Good data coverage from real-time calculations
SDI = Ran all night, good data
Bomem = No data
MSG = Unknown
Trailer = Unknown
UW_FPI = Unknown
CRL_NF_FPI = Unknown
CRL_AS_FPI = Unknown
Stratosperic_lidar = Unknown
Rayleigh_lidar = Unknown
Resonance_lidar = Unknown
Ebert = No data
Comments = It was quiet for most of the night, with some activity late.  After magnetic midnight there was a nice diffuse arc in the zenith, so I dropped SDI exposure times to 5 minutes.  Nice SDI data, although the pattern is one of a dull and quiet night.
APEX almost launched (scrubbed at T-1:06!)
MC, 20-Jan-1999.