Scanning and Mapping Strategies for CMB Experiments

Details Scanning and Mapping Strategies for CMB Experiments Scanning and Mapping Strategies for CMB Experiments

1996-11-29

arxiv.org/abs/astro-ph/9612006v1

Astronomy and Astrophysics

Astrophysics

21 pages of LaTex with 11 included figures. Paper presented at the IAS CMB Data Analysis Workshop in Princeton on 22 Nov 96

Scientific paper

CMB anisotropy experiments seeking to make maps with more pixels than the 6144 pixels used by the COBE DMR need to address the practical issues of the computer time and storage required to make maps. A simple, repetitive scan pattern reduces these requirements but leaves the experiment vulnerable to systematic errors and striping in the maps. In this paper I give a time-ordered method for map-making with one-horned experiments that has reasonable memory and CPU needs but can handle complex COBE-like scans paths and 1/f noise.

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