FIMS Wavelength Calibration via Airglow Line Observations

Far-ultraviolet Imaging Spectrograph (FIMS) is the main payload of the Korea's first scientific micro satellite STSAT-1, which was launched at Sep. 27 2003 successfully. Major objective of FIMS is observing hot gas in the Galaxy in FUV bands to diagnose the energy flow models of the interstella...

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Bibliographic Details
Published in:Journal of Astronomy and Space Sciences
Main Authors: Dae-Hee Lee, Kwang-Il Seon, Jang-Hyun Park, Ho Jin, In-Soo Yuk, Uk-Won Nam, Wonyoung Han, Jae-Woo Park, Jina Lee, Kwang-Sun Ryu, Kyoung-Wook Min
Format: Article in Journal/Newspaper
Language:English
Published: The Korean Space Science Society 2004
Subjects:
spectral calibration
airglow
FIMS
Astronomy
QB1-991
Geomagnetic Pole
Online Access:https://doi.org/10.5140/JASS.2004.21.4.391
https://doaj.org/article/678e0e05a2234d6f89aa398937aeee65
Description
Summary:Far-ultraviolet Imaging Spectrograph (FIMS) is the main payload of the Korea's first scientific micro satellite STSAT-1, which was launched at Sep. 27 2003 successfully. Major objective of FIMS is observing hot gas in the Galaxy in FUV bands to diagnose the energy flow models of the interstellar medium. Supernova remnants, molecular clouds, and Aurora emission in the geomagnetic pole regions are specific targets for pointing observation. Although the whole system was calibrated before launch, it is essential to perform on-orbit calibration for data analysis. For spectral calibration, we observed airglow lines in the atmosphere since they provide good spectral references. We identify and compare the observed airglow lines with model calculations, and correct the spectral distortion appeared in the detector system to improve the spectral resolution of the system.

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