Skip to content
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 17 additions & 3 deletions Deblending/lsst_stack_deblender.ipynb
Original file line number Diff line number Diff line change
Expand Up @@ -4,17 +4,31 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"# LSST Stack Multiband Deblender Tutorial\n",
"# Using the LSST Stack Multiband Deblender \n",
"<br>Owner(s): **Fred Moolekamp** ([@fred3m](https://github.com/LSSTScienceCollaborations/StackClub/issues/new?body=@fred3m))\n",
"<br>Last Verified to Run: **2018-08-17**\n",
"<br>Verified Stack Release: **16.0**\n",
"\n",
"This tutorial is designed to illustrate how to execture the multiband deblender (*scarlet*) in the LSST stack. This includes a brief introduction to LSST stack objects including:\n",
"This tutorial is designed to illustrate how to execute the multiband deblender (*scarlet*) in the LSST stack. This includes a brief introduction to LSST stack objects including:\n",
"\n",
" - Geometry classes from `lsst.geom`, such as points and boxes.\n",
" - Higher-level astronomical primitives from `lsst.afw`, such as the `Image`, `Exposure`, and `Psf` classes.\n",
" - Our core algorithmic `Task` classes, including those for source detection, deblending, and measurement.\n",
" \n",
"We'll be working with coadded images made from Subaru Hyper Suprime-Cam (HSC) data in the COSMOS field. We've taken a recent LSST reprocessing of the HSC-SSP UltraDeep COSMOS field (see [this page](https://confluence.lsstcorp.org/display/DM/S18+HSC+PDR1+reprocessing) for information on that reprocessing, and [this page](https://hsc-release.mtk.nao.ac.jp/doc/) for the data), and added simulated stars from a scaled [SDSS catalog](http://www.sdss.org/dr14/data_access/value-added-catalogs/?vac_id=photometry-of-crowded-fields-in-sdss-for-galactic-globular-and-open-clusters). The result is a very deep image (deeper than the 10-year LSST Deep-Wide-Fast survey, though not as deep as LSST Deep Drilling fields will be) with both a large number of galaxies and region full of stars.\n",
"\n",
"This tutorial is based on Jim Bosch's globular cluster tutorial, however in it's present state *scarlet* is unable to process the crowded field (most likely) due to poor initial conditions for the sources in the field. So instead we use a region of the image outside of the cluster."
"This tutorial is based on Jim Bosch's globular cluster tutorial, however in it's present state *scarlet* is unable to process the crowded field (most likely) due to poor initial conditions for the sources in the field. So instead we use a region of the image outside of the cluster.\n",
"\n",
"### Learning Objectives:\n",
"\n",
"After working through this tutorial you should be able to: \n",
"1. Configure and run the LSST multiband deblender on a test list of objects;\n",
"2. Understand its task context in the DRP pipeline.\n",
"\n",
"### Logistics\n",
"This notebook is intended to be runnable on `lsst-lspdev.ncsa.illinois.edu` from a local git clone of https://github.com/LSSTScienceCollaborations/StackClub.\n",
"\n",
"## Set-up"
]
},
{
Expand Down
24 changes: 19 additions & 5 deletions Deblending/scarlet_tutorial.ipynb
Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,25 @@
"cell_type": "markdown",
"metadata": {},
"source": [
"# Scarlet deblending Tutorial\n",
"# Deblending with *Scarlet*\n",
"<br>Owner(s): **Fred Moolekamp** ([@fred3m](https://github.com/LSSTScienceCollaborations/StackClub/issues/new?body=@fred3m))\n",
"<br>Last Verified to Run: **2018-08-17**\n",
"<br>Verified Stack Release: **16.0**\n",
"\n",
"The purpose of this tutorial is to familiarize the user with the basics of using *scarlet* to model blended scenes, and how tweaking various objects and parameters affects the resulting model. A tutorial that is more specific to using scarlet in the context of the LSST DM Science Pipelines is also available.\n",
"The purpose of this tutorial is to familiarize you with the basics of using *scarlet* to model blended scenes, and how tweaking various objects and parameters affects the resulting model. A tutorial that is more specific to using scarlet in the context of the LSST DM Science Pipelines is also available.\n",
"\n",
"Before attempting this tutorial it will be useful to read the [introduction](http://scarlet.readthedocs.io/en/latest/user_docs.html) to the *scarlet* User Guide, and many of the exercises below may require referencing the *scarlet* [docs](http://scarlet.readthedocs.io/en/latest/index.html)."
"### Learning Objectives:\n",
"\n",
"After working through this tutorial you should be able to: \n",
"1. Configure and run _scarlet_ on a test list of objects;\n",
"2. Understand its various model assumptions and applied constraints.\n",
"\n",
"Before attempting this tutorial it will be useful to read the [introduction](http://scarlet.readthedocs.io/en/latest/user_docs.html) to the *scarlet* User Guide, and many of the exercises below may require referencing the *scarlet* [docs](http://scarlet.readthedocs.io/en/latest/index.html).\n",
"\n",
"### Logistics\n",
"This notebook is intended to be runnable on `lsst-lspdev.ncsa.illinois.edu` from a local git clone of https://github.com/LSSTScienceCollaborations/StackClub.\n",
"\n",
"## Set-up"
]
},
{
Expand Down Expand Up @@ -448,9 +462,9 @@
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"display_name": "LSST",
"language": "python",
"name": "python3"
"name": "lsst"
},
"language_info": {
"codemirror_mode": {
Expand Down