Changes between Version 5 and Version 6 of calib_info_in_pstamp

Timestamp:

Jul 31, 2013, 4:48:14 PM (13 years ago)

Author:

bills

Comment:

--

calib_info_in_pstamp

@@ -5 +5 @@
 PS1 exposures are calibrated photometrically in multiple stages of the pipeline.
 
- * During the '''camera''' stage psastro compares the point sources detected at the '''chip''' stage with a reference catalog and computes the astrometric solution and measures the photometric zero point.
- * The '''ubercal''' process [XXX: insert reference] the zero points are refined which are inserted into the DVO catalog.
- * During '''DVO''' calibration exposures psastro that were not ubercaled are calibrated using [XXX: insert reference or text describing the process].  New zero points are measured for the non-ubercal exposures, ubercal exposures keep the zero points measured there.
+ * During the '''camera''' stage psastro compares the point sources detected at the '''chip''' stage with a reference catalogue and computes the astrometric solution and measures the photometric zero point.
+ * The '''ubercal''' process [XXX: insert reference] refines the zero points. These values are then inserted into the DVO catalog.
+ * During '''DVO''' calibration exposures that were not ubercaled are calibrated by relphot [XXX: insert reference or text describing the process].  New zero points are measured for the non-ubercal exposures, ubercal exposures keep the zero points measured there.
 
 
-It has been requested that the IPP postage stamp server include calibration information in the headers of the postage stamps. This project is in the process of being implemented. After DVO calibration the resulting information will be extracted and saved in the IPP metadata database (the mysql database named gpc1). The postage stamp server will include the data in the postage stamp FITS headers. 
+It has been requested that the IPP postage stamp server include calibration information in the headers of the postage stamps. This project is in the process of being implemented. After DVO calibration the resulting information will be extracted and saved in the IPP meta data database (the mysql database named gpc1). The postage stamp server will include the data in the postage stamp FITS headers. 
 
 The following table describes the associated keywords that provide the information.
@@ -23 +23 @@
 DVOFLAGS    U32     photometry calibration flags extracted from dvo image flags. Includes flag indicating if ubercal
                     exposure.
-UCALDIST    U32     Distance to ubercaled image XXX: 0 for ubercaled exposures. XXX: Describe more completedly.
-UCALFILE    STR     basename of ubercal file (in lieu of ubercal version)
-DVODB       STR     basename of DVO database used for calibration (where information was extracted)
+UCALDIST    U32     Distance to ubercaled image XXX: 0 for ubercaled exposures. XXX: Describe more completely.
+UCALFILE    STR     base name of ubercal file (in lieu of ubercal version)
+DVODB       STR     base name of DVO database used for calibration (where information was extracted)
 
 CALDATE     STR     timestamp relExp was set to calibrated
@@ -38 +38 @@
 ZPT_OBS     psastro zero point and error
 ZPT_ERR
-PSREFCAT    same as CATDIR
+PSREFCAT    base name of reference catalog used by psastro.
 }}}