FAST Spectrograph

Processing FAST Spectrograph Data
Jessica Mink, 2023-March-7

Telescope Data Center 		FAST Spectrum
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FAST Data Directories

All FAST data since January 5, 2005 has been reduced more or less this way

Task

Commands to Reduce Last Night's Data

2. Transfer raw data to reduction/working directory

Raw data is copied from the raw directory to the appropriate reduction directories /home/fast/ared/[year]/[yyyy.mmdd]/[configuration=B[bin]D[disperse]T[tilt]A[aperture]. BIAS and DARK images for the night are copied to every configuration with the same binning, and the DISPERSE, TILTPOS, and APERTURE keywords of those images are reset to agree with the directory. Use fasthead to make sure that configuration parameters are identical, and remove any FITS files which are known to be bad.

1. Catalog FAST raw data archive

2. Transfer raw data to reduction/working directory

3. Align spectra for one configuration

4. Extract, Cross-correlate and Check spectra

5. Make sure that files are archived appropriately

6. Distribute FAST data from one night

 
 
> cd /home/fast
> pwd
/home/fast
> fsort 2023.0122

> fwll 2023.0122
Files in /home/fast/ared/2023/2023.0122:
drwxrwsr-x 3 fast fastgrp   8192 Jan 23 17:22 B2D300T600A1.5
drwxrwsr-x 3 fast fastgrp  12288 Jan 23 17:31 B2D300T600A3
drwxrwsr-x 3 fast fastgrp   8192 Jan 23 18:40 B2D600T752A2
drwxrwsr-x 3 fast fastgrp   8192 Jan 23 17:39 B2D600T752A2.0
-rw-rw-r-- 1 fast fastgrp  44486 Jan 23 17:11 camblog.pdf
-rw-rw-r-- 1 fast fastgrp 242896 Jan 23 17:11 camblog.ps
-rw-r----- 1 fast fastgrp  12983 Jan 23 05:19 fastlog.lis
-rw-rw-r-- 1 fast fastgrp  92674 Jan 23 17:13 fastlog.pdf
-rw-r----- 1 fast fastgrp 440459 Jan 23 04:57 fastlog.ps


> cd ared/2023/2023.0122/B2D600T752A2.0
> fasthead 
FILENAME                                PROGRAM,1       P.I.    DISPERSE        TILTPOS NAXIS2  APERTURE   IMAGETYP
---------------------------------       ---------       -----   --------        ------- ------  --------   --------
0025.BIAS.fits                                  0       staff        600            752    161  2.0        ZERO
0026.BIAS.fits                                  0       staff        600            752    161  2.0        ZERO
0027.BIAS.fits                                  0       staff        600            752    161  2.0        ZERO
...
0141.COMP.fits                                  0       staff        600            752    161  2.0        COMP
0142.TIC87496804.fits                         236       Pass         600            752    161  2.0        OBJECT
0142.TIC87496804.ms.fits                      236       Pass         600            752      1  2.0        OBJECT
0142.TIC87496804TF.fits                       236       Pass         600            752    161  2.0        OBJECT
...
0161.FLAT.fits                                  0       staff        600            752    161  2.0        FLAT
0162.FLAT.fits                                  0       staff        600            752    161  2.0        FLAT
HENEAR_TEMPLATE.600.2.20.752.fits               0       staff        600            752    161  2.0        COMP
flat.600.2.20.fits                              0       staff        600            752    161  2.0        FLAT
norm.600.2.20.fits                              0       staff        600            752    161  2.0        FLAT
zero.fits                                       0       staff        600            752    161  2.0        ZERO