The Sun Watcher with Active Pixels and Image Processing (SWAP) is an EUV solar telescope on board ESA's Project for Onboard Autonomy 2 (PROBA2) mission launched on 2 November 2009. SWAP has a spectral bandpass centered on 17.4 nm and provides images of the low solar corona over a 54x54 arcmin field-of-view with 3.2 arcsec pixels and an imaging cadence of about two minutes. SWAP is designed to monitor all space-weather-relevant events and features in the low solar corona. Given the limited resources of the PROBA2 microsatellite, the SWAP telescope is designed with various innovative technologies, including an off-axis optical design and a CMOS-APS detector. This article provides reference documentation for users of the SWAP image data.
@article{arxiv.1208.4631,
title = {The SWAP EUV Imaging Telescope Part I: Instrument Overview and Pre-Flight Testing},
author = {D. B. Seaton and D. Berghmans and B. Nicula and J. -P. Halain and A. De Groof and T. Thibert and D. S. Bloomfield and C. L. Raftery and P. T. Gallagher and F. Auchère and J. -M. Defise and E. D'Huys and J. -H. Lecat and E. Mazy and P. Rochus and L. Rossi and U. Schühle and V. Slemzin and M. S. Yalim and J. Zender},
journal= {arXiv preprint arXiv:1208.4631},
year = {2015}
}