THEMIS PROJECT NAS UCB, June 2003 Science Operations Tim Quinn 4 June 2003

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Overview Data Processing Data Archiving Data Distribution Data Access Data Analysis Instrument Commanding

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Data Processing Spacecraft Data - Level 0 data files -> Level 1 data files –Packets are stripped out of Virtual Channels and are filed by Application Identifier (APID) Level 1 data files -> Summary Plots –IDL routines produce GIF and Common Data Format (CDF) files for viewing and downloading from WWW GBO - No processing steps – goes directly to storage and access

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Data Archival Raw and processed data (Level 0 & 1) are archived to disk array and DVD –Data volume ~80 GBytes/Year (All Spacecraft) Summary Plots (GIF plots and CDF files) –Data Volume ~100 Gbytes/Year GBO data sets are mirrored from University of Calgary and University of Alberta –Data volume ~4 Tbytes/Mission (All sites)

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Data Distribution DVD’s are distributed to NSSDC and Co-I institutions

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Data Access Complete spacecraft data set is accessible from local disk array at UCB WWW access to summary data GBO data accessed from UC and UA site mirror –Imager University of Calgary –Magnetometer University of Alberta

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Data Analysis Spacecraft Data Data validated on a daily basis by designated operations scientist –Assures data quality –Monitors housekeeping data trends –Identifies and tabulates geophysical events of special interest Science Data Tool (SDT) –SSL developed, used for FAST, WIND, CLUSTER, POLAR Extensive library of IDL programs S/W distributions will be made available to Co-I’s Training sessions at UCB for Co-I’s and guest investigators

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Data Analysis, Cont’d GBO Data Standard IDL-based routines available –Developed from years of experience with NORSTAR and AGOs Software packages for data access and analysis will be made freely available using web-based tools Training sessions Co-I’s and guest investigators

THEMIS PROJECT NAS UCB, June 2003 Science Operations Center Instrument Commanding Stored command loads produced using modified version of existing FAST system Loads transferred to MOC for integration into overall spacecraft load and uplink to spacecraft