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wiki:Mirroring_Requirements

Version 8 (modified by Sebastian Jester, 17 years ago) ( diff )

Add overview of data volumes

DRAVG members, please give here a summary of mirroring requirements at your institution, with a link to a more detailed page if necessary.

Some numbers as background info

Estimates made by Gene:

  • 1 copy of the static sky images is ~350 TB
  • At the end of the survey, the dvo database of the 3pi sky will contain 100e9 distinct measurements of 5e9 distinct objects, making up 50-60 TB of data.
  • 90% of the objects are in the 10% of sky that is in the plane. I.e., if you are not interested in the galactic plane, you "only" need ~6 TB for storing all of the catalogs that interest you.

Requirements

  • MPIA/MPE
    • Andromeda, Milky Way, brown dwarfs and quasars at MPIA (M31, 3pi): cmf files and/or dvo catalogs and corresponding postage stamps images ASAP.
    • For brown dwarfs & quasars: initially, the high-galactic-latitude sky will be enough; the brown dwarfs want the entire sky once proper-motions can be determined.
    • For quasars (and maybe brown dwarfs, too?):
      • izy stacks as soon as possible after data are taken
      • forced photometry in all other bands at the locations of all z and y-band detections
    • Pan-Planets:
  • Belfast
    • 3pi survey from MHPCC: cmf files, postage stamp images,
    • from Garching: some detrend and difference images;
    • MDS from Garching: detrend images
  • Edinburgh
  • Durham
  • CfA Full catalogs. 50-100% of Medium Deep Survey; detrending images only. Rapid-response postage stamp images.
  • JHU
  • LCOGT/UCSB
  • NCU/TW Full catalogs; Medium Deep Survey; detrending images only; Rapid-response postage stamp images; cmf files.

Postage-Stamp Server needs

  • The Transient Classification Server requirements document specifies a worst-case of 100,000 request of 100x100 pixel stamps per day.
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