MDI Data Services & Information

From this page you can make MDI data export requests, search our database, view quick-look data, and review documentation on MDI data and data processing.
Click for 1024x1024 images.

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NOTE: Lev1.8 full-disk 96m magnetograms have been recalibrated,
and are available for download at our ftp site. There are seventeen 3-4 Gb tar files for the complete 96-minute magnetic series. All export requests for lev1.8 magnetograms will be calibrated with the new process. See Lev 1.8 for a recap of the changes to the calibration. The old-style magnetograms will be available through the end of 2007 by special request.

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• Data Archive

  • Automated Data Search and Export Requests - This is the normal link to request MDI data
  - Request datasets for export, or check on the status of a previous request.
  • Calibration Notes and Problems
  - Descriptions of known calibration problems for each observable, including correction tables if we have them. (UNDER CONSTRUCTION)
  • Table of SOHO Off-Nominal Roll Times
  • Table of SOHO HGA Blackout ("keyhole") Times
  
  
  

• Quick-Look and Synoptic Data

  • Magnetic Field Synoptic Charts and Computed Coronal Field Maps
  - Links to all MDI and WSO Synoptic Data.
  • Data Image Atlas
  - View images of MDI EOF data for the last 30 days of observing.
  • Farside Images
  • Improved Farside Images
  - View images of the Farside of the Sun made from MDI Doppler data with experimental procedure.
  • Quick-look Magnetogram Summary Images
  - Mini 96m magnetograms on one plot per day.
  • GIF Images
  - Magnetogram GIF Images
  - Intensitygram GIF Images With Limb-Darkening Removed
  - Intensitygram GIF Images With Limb-Darkening (Latest quick-look gifs are also here)
  
  
  

• Database Browsers

  • Database Browsers
  - Do general searches of the SOI database for available datasets.
  • Dataset Image Headers
  - Examine on-line dataset headers -- local SOI group only, others may view the dataset headers via the Data Archive link above.
  
  
  

• Data Production Status

  • Data Anomaly Reports
  - Reports of known problems with the data.
  • Monthly High-Rate Data Coverage Plots
  - See what dates and times MDI high-rate data are available.
  • Monthly Low-Rate Data Coverage Plots
  - See what dates and times MDI low-rate data are available.
  • Monthly Magnetic Field Data Coverage Plots
  - See when various kinds of magnetic field data are available.
  • Monthly Image Center Plots
  - Plots of the image center drift, in arc-seconds.
  • Latest MDI Data Processing Status Report
  - Find out how the processing of the data is proceeding.
  • Data Export Plots
  - Megabytes exported and number of export requests.
  
  
  

• Documentation

  • MDI Data Info Page in SOHO standard format
  • SOI Technical Notes
  • Data Quality Documentation
  - including quality bit definitions
  • Science Support Center User's Guide
  • DPC & Campaign Table
  - DPCs and observables associated with each MDI campaign
  • Significant Observing Conditions & Events
  - Query for significant spacecraft and instrument events.
  • Conforming Dataset Document
  • Level 1.5 Image Header Descriptions
  • SOI Data Availability Policy

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Page last revised Thursday, 28-Feb-2008 15:28:00 PST