# Scripting of DK 154 pipeline

There is a description of development of a pipeline for processing of images from DK154. The scripts can be modified and used for general data processing.

## Introduction

DK154 is the famous Danish 1.54-meter telescope at La Silla (Chilie).

## Prerequisities

The frames are taken under common conditions:

- Every frame includes IMAGETYP keyword in header with possible values: LIGHT, BIAS, FLAT
- The CCD is cooled below -100°C, so taking of darks has been abandoned by operators.
- Biases are cheeply available. There is easy to get 15 - 20 biases per run. It is supposed biases are get every night.
- Flat-fileds are relative expensive to acquire. Ones are taken only one per seasson (per month), certainly, at least not every night. Flat-fields can be visually checked.
- The rought sky position (± few arcmin) is known. The position is pre-set in frame headers by telescopes's controlers.

## Overview

## See Also

Data format, Light Curve, Listing, Common options.