ASTRON

Data products

 

Major Observing modes

Signal Path

Antennas Description

Station Description and Configuration

Array Configuration

Imaging Capability and Sensitivity

Frequency and Subband Selection

Beam Definition 

Transient Buffer Boards

Data Management

CEP facilities

Data products  

LOFAR Time Standard 

 

 

Pre-processing pipeline:

 

The final product of the pre-processing pipeline archived in the Long Term Archive (LTA) is a Measurement Set (MS) which includes in the DATA column uncalibrated data which have been flagged, demixed and averaged according to the user's request.  Intermediate data products, such as the solutions found when solving for the demix, can be made available on CEP1 upon request to sciencesupport [at] astron [dot] nl.

 

Calibrator pipeline:

The final product of the calibrator pipeline archived in the LTA is a MS which includes DATA and CORRECTED columns. In the DATA column there are uncalibrated data relative to the calibrator after they have been demixed and averaged. In the CORRECTED data column there are data (flagged, demixed and averaged) relative to the calibrator to which the antenna gain solutions found by BBS have been applied. Possible intermediate data products are the solutions found when solving for the demix, the antenna gain solutions found by BBS and the skymodel used for the demix and calibration in a database format. These can be made available on CEP1 upon request to sciencesupport [at] astron [dot] nl.

 

Target pipeline:

The final product of the calibrator pipeline archived in the LTA is a MS which includes DATA and CORRECTED columns. In the DATA column there are uncalibrated data relative to the target after they have been flagged, demixed and averaged. In the CORRECTED data column there are the data (flagged, demixed and averaged) relative to the target to which the antenna gain solutions of the calibrator have been transferred. Possible intermediate data products are the solutions found when solving for the demix, the antenna gain solutions found by BBS for the calibrator and the skymodel used for the demix in a database format. These can be made available on CEP1 upon request to sciencesupport [at] astron [dot] nl.

 

Imaging pipeline:

The final product of the imaging pipeline archived in the LTA is an image in HDF5 format. Intermediate data products are the output source catalogue extracted from the final image and the MS (virtually concatenated) self-calibrated with the VLSS skymodel used to produce the final image. These can be made available on CEP1 upon request to sciencesupport [at] astron [dot] nl.

 

 

 

Design: Kuenst.    Development: Dripl.    © 2021 ASTRON