Introduction

This section describes the observing program and the available data products. Data access is granted via Central European Solar ARchives - CESAR. For information about the telescope, its optical parameters, the camera system unit, the image acquisition techniques and data processing procedures follow the links:

Observing Program, Data Archives and Policy

The time series are obtained with a cadence of 1 image/min as the standard observing program. Each is image is the frame with highest contrast in the AOI selected over at least 100 consecutive frames. From this series we will pick one best image per hour during periods of solar low activity and up to 1 image/5 min on high activity for the long term archives. This second step of image selection is done by evaluating the images with the optimum window method (Giammanco, 2000, Astron. Astrophys. Suppl. Ser. 147, 1), for the production of Archives Level Data. Details of the workflow applied in the data processing pipeline are described in »KPDC - Data Processing Pipeline.

For synoptic purposes 1 image per day is selected, processed and published on the web. The processing comprises the application of the described flatfielding method based on the work of Burlov-Vasiljev, which yields also a center-to-limb variation function, and the presentation as a low (normal) contrast image and a high (CLV compensated and enhanced) contrast image, both in FITS and JPEG. The JPEGs are downsized to 1024x1024 pixels and rotated to have solar N up (--» synoptic level data). The full data set will be available in our online archives CESAR and is open for use by the scientific community if you acknowledge the source of the data.