
- Add PS-1 discussion in Subsystem Overview: 

  In the case of the IPP, PS-1 differs from the complete PS-4 system
  in several important ways.  First, with only one telescope and
  camera, the data throughput rate is substantially reduce to a
  maximum of 1 64-OTA image per 40 seconds rather than 4.  In
  addition, much of the PS-1 mission will be devoted to calibration
  and testing which will imply a different level of processing.  For a
  significant fraction of PS-1, data will be obtained for the AP
  Survey covering the entire $3\pi$ steradians of the sky accessible
  to PS-4.  These images will not be analysed initially to the
  complete analysis level of having multiple images combined.  Rather,
  it will be calibrated to the extent possible for a single focal
  plane array.  Only after the AP Survey is done, the analysis process
  has been validated, and the complete AP Survey reference catalog has
  been generated will it be possible to generate the first epoch
  static sky image, rougly 18 months into the PS-1 mission.

- fix order in 3.2 (MD before AP DB)
- Add PS-1 discussion to hardware: only 64 OTAs per image

- AD DB Operations:
  - Addstar:

    This operation takes the metadata and object data for an image
    (complete FPA or individual OTA?) and inserts the data into the AP
    Database.  This operation is performed by a client in interaction
    with the AP Database Servers.  The steps performed are as follows:

    Client-side data distribution
    - load relevant Region table rows
    - divide object list into appropriate regions
    - identify appropriate image table
    - send object data to appropriate servers
    - send image data to appropriate server

    Server side interactions
    - accept detections for specific object table 
    - load corresponding objects
    - load corresponding detections 
    - spatially match detections to objects
    - add matched detections to detection table (with object IDs)
    - update object average parameters

  - Delstar

  - Relphot


- Scheduler

  Get new images
  every 15 seconds

    check for newest current image in metadata db
    request images newer than T


      status
      /path/image.fits
      /path/metadata.fits

    add entry to metadata DB
    save metadata to MD DB
    copy image to image server
    set metadata entry to downloaded

      
      
