Sample Data

A sample data are available as munipack-data-blazar.tar.gz. Use commands

$ cd /tmp/
$ tar zxf munipack-data-blazar.tar.gz

to unpack it to a desired directory. We will assume that the sample data are unpacked to /tmp directory as /tmp/munipack-data-blazar.

The sample dataset includes an observation of this blazar together with correction frames (flat-fields and dark-frames).

An overview
DescriptionFilemaskExposure
scientific images0716_[1-9]R.fits120 sec
dark-frames of scientific imagesd120_[1-7].fits120 sec
flat-fieldsf10_[1-9]R.fits10 sec
dark-frames of flat-fieldsd10_[1-9].fits10 sec

Working directory

As a first important step, we will create a working directory. For example, create directory /tmp/munipack-data-blazar and switch to by the command:

$ mkdir /tmp/work
$ cd /tmp/work

The name is arbitrary. It is highly recommended to use a new empty directory to prevent unwanted replacement of any data (especially of original images!).