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WFC3 and Association Structure. Ed Hopkins . WFC3 and ACS associations. They are the same! Unless we are explicitly told otherwise These are 100% reused slides!. WFC3 Associations: general considerations. There will be an association table and multiple exposure and product datasets

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wfc3 and acs associations
WFC3 and ACS associations
  • They are the same!
    • Unless we are explicitly told otherwise
  • These are 100% reused slides!

WFC3 PDR

wfc3 associations general considerations
WFC3 Associations: general considerations
  • There will be an association table and multiple exposure and product datasets
    • Each product or sub product and each exposure is in a separate dataset
  • There can be from 1 to 19 products (0-9 and A-I)
    • The product ending in “0” is always the dither product
    • There can only be 18 “pointings” in a ditther
  • There will be two kinds of products: sub products and main or dither products
    • Sub-products are made from sets of repeat-obs or cr-split exposures
      • In these cases the subproduct will always end in “1”
      • There will be no dataset with the same name as the association
    • Dither products are made from sub-products or exposures

WFC3 PDR

wfc3 associations two levels comments
WFC3 Associations: two levels: comments
  • This could be a picture of several cr-splits and a dither/main product
  • This could be a picture of several repeat obs and a dither/main product

WFC3 PDR

wfc3 associations when exposures are missing
WFC3 Associations: when exposures are missing
  • WFC3 will always produce a sub product or dither product if it has anything to work with
    • If it has at least one exposure for that product or sub product it will produce a product

WFC3 PDR

dither products
Dither products
  • If WFC3 is not ready to produce real dither products, it will produce dummy dither products.
    • These dummys are the entries that go in the science table
      • They representing the exposures the dither product would have been built from

WFC3 PDR

mosaics
Mosaics
  • Mosaics are not associated
  • These could be produced in the future by the OTFR system
    • If the correct groupings were “manually” put in the archive database tables

WFC3 PDR