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File Organization for Images, PSCs and Light Curves

Wilfred Tyler Gee edited this page Jul 25, 2016 · 6 revisions

Terminology

See Terminology page

Lowercase items are variable.

Whole Field Images

Stored on unit, by field:

field/cameraid/seq_time/img_time.cr2 (raw image files) field/cameraid/seq_time/img_time.jpg (jpg files)

Postage Stamp Cubes (PSCs)

A "pre-processing" algorithm runs on the unit and makes 10,000s of PSCs from whole field images for each PIC star. These are stored on the unit and copied to the cloud:

PSC/unitid/cameraid/seq_time/picid.fits

Light Curves

The PIAA algorithm operates on each batch of PSCs and outputs light curve JSON files. These are stored in a separate file structure on the unit and copied to the cloud, organized by PICID:

LC/picid/unitid/cameraid/seq_time.json

Master Light Curves

An algorithm will operate on all of the light curves for each PIC object on the cloud, and output a master light curve for every object to a Cloud Storage bucket. These will be named with the PICID, and for now are stored as JSON objects like the light curve segments:

MLC/picid.json

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