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In-flight measurement of Planck telescope emissivity
- Source :
- Experimental Astronomy, Experimental Astronomy, Springer Link, 2019, 47 (1-2), pp.107-127. ⟨10.1007/s10686-018-9616-z⟩, Experimental Astronomy, 2019, 47 (1-2), pp.107-127. ⟨10.1007/s10686-018-9616-z⟩, NASA Astrophysics Data System
- Publication Year :
- 2019
- Publisher :
- HAL CCSD, 2019.
-
Abstract
- The Planck satellite in orbit mission ended in October 2013. Between the end of Low Frequency Instrument (LFI) routine mission operations and the satellite decommissioning, a dedicated test was also performed to measure the Planck telescope emissivity. The scope of the test was twofold: (i) to provide, for the first time in flight, a direct measure of the telescope emissivity; and (ii) to evaluate the possible degradation of the emissivity by comparing data taken in flight at the end of mission with those taken during the ground telescope characterization. The emissivity was determined by heating the Planck telescope and disentangling the system temperature excess measured by the LFI radiometers. Results show End of Life (EOL) performance in good agreement with the results from the ground optical tests and from in-flight indirect estimations measured during the Commissioning and Performance Verification (CPV) phase. Methods and results are presented and discussed.<br />Comment: 18 pages, 18 pictures. Results from the Planck Satellite "End Of Life" Test Campaign
- Subjects :
- [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
Reflection lo
Astrophysics::High Energy Astrophysical Phenomena
Cosmic microwave background
Measure (physics)
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
CMB
01 natural sciences
law.invention
Telescope
symbols.namesake
law
0103 physical sciences
Emissivity
Planck satellite
Reflection loss
Space instrumentation
Microwaves
LNA
Astrophysics - Instrumentation and Methods for Astrophysics
Planck
010303 astronomy & astrophysics
Instrumentation and Methods for Astrophysics (astro-ph.IM)
Astrophysics::Galaxy Astrophysics
ComputingMilieux_MISCELLANEOUS
Remote sensing
Physics
Radiometer
010308 nuclear & particles physics
Astrophysics::Instrumentation and Methods for Astrophysics
Astronomy and Astrophysics
[SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]
Space and Planetary Science
Orbit (dynamics)
symbols
Satellite
Astrophysics::Earth and Planetary Astrophysics
Microwave
Subjects
Details
- Language :
- English
- ISSN :
- 09226435 and 15729508
- Database :
- OpenAIRE
- Journal :
- Experimental Astronomy, Experimental Astronomy, Springer Link, 2019, 47 (1-2), pp.107-127. ⟨10.1007/s10686-018-9616-z⟩, Experimental Astronomy, 2019, 47 (1-2), pp.107-127. ⟨10.1007/s10686-018-9616-z⟩, NASA Astrophysics Data System
- Accession number :
- edsair.doi.dedup.....c8571bab9efe519f59e22dc1d7318561