Changes between Version 26 and Version 27 of staticsky.20120706

Timestamp:

Dec 19, 2012, 2:48:08 PM (14 years ago)

Author:

bills

Comment:

--

staticsky.20120706

@@ -4 +4 @@
 
 == Current Status ==
-Staticsky processing was stopped during the week ending 2012-12-07 to allow the stack construction up to RA 2H to complete. It was restarted on 2012-11-11
-with the area with RA < 15 DEC < 10 queued first. 
 
-As this region was nearing completion on 2102-12-14 we discovered that an error was made when setting the configuration parameters
-for the cuts to fix the excess y band detection problem discussed below. The data processed between 2012-12-11 and 2012-12-14 am had
-to be abandoned.
+The following plot shows the skycells that have completed static sky processing as of 2012-12-19 22:30 UTC
 
-The following plot shows the current status
-
-The stripe containing the Kepler field is on the left side of the plot 18 < RA < 20. The current area of interest RA < 15 and DEC < 10.
+The stripe containing the Kepler field is on the left side of the plot 18 < RA < 20. The system is currently
+working on the rest of that stripe in 18h < RA < 20h. Since this contains the galactic center progress has
+slowed significantly.
 
 Other areas that have been processed were queued during several changes of direction described below.
 
-[[Image(ssky.20121214.png)]]
+[[Image(ssky.20121219.png)]]
 
 == Sky calibration status 2012-12-10 ==
 
-The plot below shows the number of detections (matched and real) per skycell (log scale) for the region 267 < RA < 303 DEC > 10.
+The plot below shows the number of sources detected per skycell in the r band.
 
 [[Image(logdetections.jpg)]]
@@ -58 +54 @@
 This effect is seen in 3% of the skycells north of 30 degrees declination.
 [[Image(mdr_cut.jpg)]]
+
+
+After testing a more conservative cut was chosen. It is based on the ratio of the number of sources in y
+to the number of sources detected in r, i, and z.
+
+Automatic forced photometry for sources detected in y band but not any other is disabled for skycells where 
+
+{{{
+   (NDetected_y / NDetected_r) > 1.7 && (NDetected_y / NDetected_i > 1.6) &&  && (NDetectected_z > 1.65)
+}}}
+
+About 1 percent of skycells is affected by this feature.
 
 == Archival Notes ==