1. THEORY OF OPERATIONS
    

1.1 INTRODUCTION


1.2 REFERENCE MATERIAL

    These references are in a folder in the EOF:
      MDI Guide: The Use and Operation of the MDI Instrument 
      	(Instrument Operations)
      SOI-MDI Paper (Scherrer) in the SOHO Mission Book 
      	(Describes MDI instrument, goals and operations)
      SOI-MDI News 
	(Newsletter)
      SOI-MDI Mission Operations Plan 
	(Operations Plan of MDI for EOF)

    These references are in separate binders in the EOF:
      SOI-MDI Experiment Operations Manual 
	(MDI procedures and operations, all info that the FOT needs to know)
      ICD Binder in EOF 
	(Communications between EOF and ECS)
      SOHO Ops Plan 
	(EOF procedures)
      Flight Ops Plan 
	(FOT operations and procedures)
      IP Info Folder 
	(What IP does, error & instruction codes)
      Interface and Ops Docs 
	(IP, software, ICD's)

    These references are on the Stanford Operations Page: 
    (http://soi.stanford.edu/operations/operations.html)
      SOI Science Planning Procedures
      Mission Operations Plan
      Experiment Operations Manual
      Operations Guide
      Calibration and Analysis Software
      GSE Software System



1.3 PROGRAMS FOR MDI

    1.3.1 Program List

          monitor is a program for the operating system and housekeeping

          sequencer is main program and it has 3 submodes
	      alt is a 30 sec mode
	      campaign is a 30 sec mode
	      prime60 is a 60 sec mode with 2 parts
		   structure is the low rate full disk images (2/min)
		   dynamics is the low rate full disk images (1/min)
			PLUS high rate other observations-alt or 
			campaign (1/min)  

    1.3.2 Program Descriptions

 	  Structure Program:
            The scientific objectives related to determining the solar internal 
            STRUCTURE require continuous  or nearly continuous observations for
            many months to years, so this data must be transmitted in the low 
            bandwidth channel.  

          Dynamics Program:
	    The detailed study of the solar convection zone DYNAMICS requires 
            all observable modes for a long interval.  During high-bandwidth 
            telemetry intervals exceeding 72 hours, MDI transmits full disk 
	    Dopplergrams each minute for the primary dynamics program.
	


1.4 TYPES OF COMMANDS

    - NRT (near real time)
    - BKG (background)
    - Delayed
    - TSTOL


1.5 TYPES OF IMAGES   

    - Velocity (dopplergrams)
    - Line Intensity
    - Continuum Intensity
    - Magnetic Field (magnetograms)

1.6 TELEMETRY MODES  
  
    - VC0 - low rate housekeeping
    - VC1 - low rate science
    - VC2 - high rate magnetorgams (data comes here)
    - VC3 - high rate helioseismology (data goes to JPL)
    - VC4 - high rate data dump


1.7 TREE OF OPERATIONS   

    - Computers: IWS -> ECS -> CMS -> POCC -> DSN -> Spacecraft
    - People:    IWS -> SOC -> FOT