Tutorial

Running SPyderWebb

In order to be able to run SPyderWebb you will need to install the JWST calibration pipeline. It is best to create a python environment for this.

Step 1: Download Data

Download your data from MAST. You want all of your _rate.fits files and the _msa.fits file which contains the information about what shutters the sources are in.

Each exposure and detector should have its own directory. That’s what SPyderWebb expects. For example:

jw02609006001_03101_00002_nrs1/
   jw02609006001_01_msa.fits
   jw02609006001_03101_00002_nrs1_rate.fits
jw02609006001_03101_00002_nrs2/
   jw02609006001_03101_00002_nrs2_rate.fits
jw02609006001_03101_00003_nrs1/
   jw02609006001_03101_00003_nrs1_rate.fits
jw02609006001_03101_00003_nrs2/
   jw02609006001_03101_00003_nrs2_rate.fits

# m71/
from spyderwebb import reduc
reduce.process('jw02609006001_03101_0000?_nrs?/*_rate.fits',outdir='red')



# m71/red/
obsname = 'jw02609006001_03101'
out=reduce.reduce(obsname,clobber=True,noback=True)

This will create an output file called spectrum_doppler.fits.