UW LSST Python Libraries

lsstdb

Code to ingest photometry data into our test database. To use:

• Create pipeRun and algRun files as per the doc string in lsstdb.ingestRun (from in python:

  >>> import lsstdb
  >>> help(lsstdb.ingestRun).
  	

• ingestPipeRun pipeRunFile [pipeRunFile2 ...]
• For help: ingestPipeRun --help

Python modules

• lsstdb.ingestRun.ingestPipeRun
  • Called by ingestPipeRun command-line utility.
  • Creates entries in the PipeRun and AlgRun tables.
  • Handles exceptions by rolling back the database.
  • Calls the appropriate algorithm-specific ingest code.
• lsstdb.ingestAlgname: algorithm-specific ingest code. Parses the appropriate data product files as specified in the algRun data file.
• lsstdb.util: utilities to aid ingest
• lsstdb.wcs: code for computing x,y->RA,Dec using on wcs information in the database; uses sdsswcs and (soon) LSSTProto.

lsstmisc

Utility routines.

• precfits.open reads lsst precursor FITS files, incorporating the associated .hdr data.
• parseParams: parse the parameter files used by our various photometry codes returning the data as a dict. Also includes code to create new parameter files.
• sky2htm: convert RA/Dec to HTMID (python interface to C code).

sdsswcs

Functions fk5FromXy and xyFromFK5 compute x,y -> FK5 RA/Dec and the inverse for SDSS images. This uses the high-accuracy WCS data from the asTrans files. However, it applies the default "cosmic" color corrections because we are not computing color. Implemented as a python interface to photo c code, using SWIG.

Note that wcs calculations on non-sdss images will use LSSTProto, the official lsst prototype wcs code.