Changes between Initial Version and Version 1 of IppDataProductsForWeakLensing

Timestamp:

Nov 6, 2009, 2:34:37 PM (17 years ago)

Author:

dravg.uk.edinburgh

Comment:

First version, copied from the ROE's internal tWiki

IppDataProductsForWeakLensing

@@ +1 @@
+= IPP Data Products we (ROE Weak Lensing Group) require for Weak Lensing analysis =
+
+== Pointings ==
+
+There are 10 pointings customised for high-redshift supernova searches. These are the Medium Deep Surveys. Each field has a footprint the size of the detector.
+
+There is also a deep pointing of Andromeda (MD00).
+
+The WL group will be using data from all 11 of these pointings.
+
+|| Field || Required || Available ||
+|| MD01 || X || X ||
+|| MD02 || X || X ||
+|| MD03 || X ||   ||
+|| MD04 || X ||   ||
+|| MD05 || X ||   ||
+|| MD06 || X ||   ||
+|| MD07 || X ||   ||
+|| MD08 || X || X ||
+|| MD09 || X || X ||
+|| MD10 || X || X ||
+|| 11 (M31) ||  X || ||  
+
+== Products for the Medium Deep (MD) surveys ==
+
+Imaging is done in 5 filters: g r i z y, with the highest integrated throughput in r & i.
+
+||        || g || r || i || z || y ||
+|| raw    ||   ||   ||   ||   ||   ||
+|| chip   ||   || f || f ||   ||   ||            
+|| camera ||   || c || c ||   ||   ||
+|| warp   ||   || f || f ||   ||   ||
+|| stack  || f || f || f || f || f ||
+
+    * f => full
+    * c => clean
+
+"Distribution bundles are built in either ''full'' or ''clean'' state. In the full state all of the associated data products are included. In the clean state the larger images are omitted. Once the dependent products are available at the mirror site, a run can be set to update state which causes the images to be re-created."
+
+-- http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/wiki/GPC1_DataDistribution_Overview
+
+All products for a later production stage can be generated from a full bundle. But though that implies all we really need is the full state of clean, the CPU time isn't worth it. Best to just grab the full warps, for example.
+
+== Data Storage Requirements ==
+
+    * 1.4e9 pixels
+    * 10 bytes/pixel
+    * 0.3 compression factor
+    * 11 fields (10 MDS + M31)
+    * ~100 images
+
+=> ~4 TB
+
+Since it's an approximation, budget for 8 TB
+Medium Deep Survey pointings
+
+(sorry for the size, I don't know why tWiki doesn't scale images.)
+
+Also, the following image is WRONG. The background map needs to be flipped L-R. Hence the Andromeda (M31) pointing at the far right should really be over Andromeda, which in this map is at the far left, angled the wrong way.
+
+Pan-STARRS1_MDS.png
+
+-- EricTittley - 2009-11-06