期刊
JOURNAL OF INSTRUMENTATION
卷 8, 期 -, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1748-0221/8/07/T07001
关键词
Instrument optimisation; Space instrumentation; Microwave radiometers; Instruments for CMB observations
资金
- ESA
- ASI-E2 phase of the Planck contract
- NASA Science Mission Directorate
- Finnish Funding Agency for Technology and Innovation (Tekes)
- ESA Mission Operation Centre
- ESA Planck Science Office
- ESA Planck Project
In this paper we discuss the Planck-LFI in-flight calibration campaign. After a brief overview of the ground test campaigns, we describe in detail the calibration and performance verification (CPV) phase, carried out in space during and just after the cool-down of LFI. We discuss in detail the functionality verification, the tuning of the front-end and warm electronics, the preliminary performance assessment and the thermal susceptibility tests. The logic, sequence, goals and results of the in-flight tests are discussed. All the calibration activities were successfully carried out and the instrument response was comparable to the one observed on ground. For some channels the in-flight tuning activity allowed us to improve significantly the noise performance.
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