Data Products
Below you will find information of the pixel data products that will be produced by the LSST software stack. As well, you will find information on the level 3 products (measurements), and associated Solar System-specific values that will be automatically calculated by the stack.
Key LSST Deliverables for Solar System Science
- Within 60 seconds of each observation: A real-time stream of observation reports (alerts) with information about astrometry, photometry, and shape including trailing, direction of motion.
- Every day: A stream of linked tracks reported to the Minor Planet Center.
- Every day: A catalog of orbits for LSST-discovered objects.
- Annually: Precisely calibrated photometric catalog (ugrizy bands) accurate to 5mmag (systematics limited), with every data release.
- trailed model PSF
- image cutouts
- trail-corrected astrometry
- pill aperture photometry
- psf-fit photometry
- morphology information
- phase angle
- many other jpl-type values
- web service
The Data Products Definition Document (DPDD) defines the outline of what the nightly and yearly catalogs will contain, but adding more detail via discussions with the SSSC is on-going. You can find a handy outline of the proposed database schema for the LSST SSObject table here .
LSST Data Product Levels
The LSST stack will produce data products at three levels, which are broadly defined below.Prompt data products produced on nightly or shorter timescales which will consist of basic images, source catalogs, transient identifications, moving object identifications, and event alerts.
Data Release annual data release products including refinements to calibrations and photometry, calibration images, image co-adds and catalogs.
User Contributed are user-generated added value products.
Exactly what parameters will be automatically provided within Prompt and Data Release products are still being discussed. You can learn more about the current status on planned Solar System Data Products from LSST in this recorded presentation by Mario Jurić. More information on all LSST data products can be found here.
Image Credit: LSST Data Management
Proposed Solar System-Specific Data Products
The following lists are incomplete. Eventually they will be complete, and listed in order of importance based on the cumulative needs of all science cases.