Introduction
Summary of LASCO/EIT What is LASCO? What is EIT? (external link) FAQ Realtime Images RealTime Movies (SOHO Movie Theater) Download LASCO Data Data Products Image Gallery Movie Gallery Processing Levels FITS Header Keywords Data Policy Wavelet images/movies Coronal Mass Ejections Eclipse Observations LASCO Calibration LASCO C3 Planet transits (via Sungrazer) Team and Operations Resources LASCO/C1 at MPAe (Germany) LASCO at LAS (France) LASCO Handbook Technical Notes Detailed Documentation Acronyms Solwind Images and CMEs SOHO Home page SOHO and SOHO Instruments Other Solar Satellites and Observatories |
LASCO Processing LevelsTELEMETRYQUICK LOOKThe output from the instrument is merged into the SOHO telemetry stream, transmitted to the DSN and then delivered to the LASCO work stations (IWS) at the EOF. For about 12 hours per day, SOHO data are received by the IWS in near real time, and for the remaining time, the data are received with a few hours' delay. Every day the previous day's real-time and playback raw data are ftp'd from the EOF. Both of these data sets are designated quick look.LEVEL 0 ("LZ")The various ground stations of the DSN record the data onto tape and mail the tapes to the IPD at GSFC. These tapes are processed by NASA /IPD and then sent to the LASCO team several months after the data were collected. The Level Zero ("LZ") data have fewer missing data packets (blocks) than the Quick Look data.LEVEL 0.5 (FITS)
LEVEL 1 (FITS)
LEVEL 2 (FITS)
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