Difference: SpireCalibrationWeb (84 vs. 85)

Revision 852013-06-10 - LucaConversi

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META TOPICPARENT name="WebHome"

SPIRE instrument and calibration web pages

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  • extdPxW maps are calibrated for extended emission and provided in units of MJy/sr. These maps are provided with an estimation of the absolute offset via cross-calibration with Planck data.
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  • In all cases, SPIRE data is calibrated in the assumption of source having a spectral index equal to -1, i.e. νSν = const. To calibrate your data for other cases or convert to e.g. Jy/sr, please refer to section 5.7 of the SPIRE Data Reduction Guide.
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  • In all cases, SPIRE data is calibrated in the assumption of source having a spectral index equal to -1, i.e. νSν = const. To calibrate your data for other cases or convert to e.g. Jy/sr, please refer to section 5.7 of the SPIRE Data Reduction Guide.
 
  • The SPIRE Photometer filter transmission curves, also known as Relative Spectral Response Functions (RSRF) are available here. For more details, please read the .readme file in this ftp folder.
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The offsets are computed on extdPxW maps, calibrated for extended emission, with extended gain correction applied and in units of MJy/sr (as explained in the section 5.7 of the SPIRE Data Reduction Guide). Hence, the re-processing will start from a level-1 context (which may be the result of merging multiple observations, see e.g. the Photometry Map Merging scirpt available in HIPE under the menu ScriptsSPIRE Useful script) and then executing the following code:
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The offsets are computed on extdPxW maps, calibrated for extended emission, with extended gain correction applied and in units of MJy/sr (as explained in the section 5.7 of the SPIRE Data Reduction Guide). Hence, the re-processing will start from a level-1 context (which may be the result of merging multiple observations, see e.g. the Photometry Map Merging scirpt available in HIPE under the menu ScriptsSPIRE Useful script) and then executing the following code:
 
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#################### SCRIPT BEGINS ####################
 # The script assumes that: # 1. a Level1Context is already defined and it is named "level1" # 2. a Level2Context is already defined and it is named "level2"
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# E.g.: # # obs = getObservation(1342195871,useHsa=1) # level1 = obs.level1 # level2 = obs.level2
  # Define properties needed by zeroPointCorrection task
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Configuration.setProperty("spire.spg.hfi.colorc", "PATH_TO_FILE/SpireHfiColourCorrTab_v2.2.fits")
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Configuration.setProperty("spire.spg.hfi.colorc", "PATH_TO_FILE/SpireHfiColourCorrTab_v1.1.fits")
 Configuration.setProperty("spire.spg.hfi.545map", "PATH_TO_FILE/DX9_map_545_smooth_8arcmin.fits") Configuration.setProperty("spire.spg.hfi.857map", "PATH_TO_FILE/DX9_map_857_smooth_8arcmin.fits")
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# Check if properties are correctly set
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# Check if zero-point correction task is runnable zeroPointIsRunnable = zeroPointCorrection.isRunnable() if zeroPointIsRunnable: print "Configuration is properly set. Zero-point correction task is runnable in this environment"

# Run zero-point correction task

 if (zeroPointIsRunnable): level2ZeroPoint = MapContext() for key in level2.meta.keySet():
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  scansZeroPoint.addProduct(psp) # # Try to load the de-striper diagnostic products to speed-up re-processing
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arrays = ["PSW","PMW","PLW"]
  for array in arrays: diagref = level2.refs['psrc'+array.upper()+'diag'] if diagref = None:
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  # Populate the "level2" variable with extdPxW maps, with the computed offset for array in arrays: level2.refs.put("extd"+array.upper(),ProductRef(zeroPointMaps.getProduct("extd"+array.upper())))
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#################### SCRIPT ENDS ####################
 
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META FILEATTACHMENT attr="" autoattached="1" comment="SPIRE in-flight calibration" date="1295887708" name="aa14605-10.pdf" path="aa14605-10.pdf" size="270415" user="Main.IvanV" version="1"
META FILEATTACHMENT attr="" autoattached="1" comment="Sensitivity of the SPIRE Detectors to Operating Parameters" date="1369124238" name="SPIRE_Detector_Parameter_Sensitivity_Issue_1_Nov_14_2007.pdf" path="SPIRE_Detector_Parameter_Sensitivity_Issue_1_Nov_14_2007.pdf" size="189448" user="Main.IvanV" version="1"
META FILEATTACHMENT attr="" autoattached="1" comment="SPIRE Data Launch Pad v1.6" date="1345816649" name="SPIRE_DataLaunchPad_v1.6.pdf" path="SPIRE_DataLaunchPad_v1.6.pdf" size="205212" user="Main.ChrisPearson" version="1"
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META FILEATTACHMENT attr="" autoattached="1" comment="" date="1370854397" name="zeroPointCorr.py.txt" path="zeroPointCorr.py.txt" size="2959" user="Main.LucaConversi" version="1"
 
META FILEATTACHMENT attr="" autoattached="1" comment="" date="1304680043" name="Phot_Pipeline_Issue7.pdf" path="Phot_Pipeline_Issue7.pdf" size="464813" user="Main.LucaConversi" version="1"
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META FILEATTACHMENT attr="" autoattached="1" comment="" date="1330422558" name="SPIRE-BSS-DOC-002966_SPIRE_Spectrometer_pipeline_description_Issue_4_0_1.pdf" path="SPIRE-BSS-DOC-002966_SPIRE_Spectrometer_pipeline_description_Issue_4_0_1.pdf" size="812580" user="Main.EdwardPolehampton" version="1"
 
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