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The Korean Astronomical Society (한국천문학회)
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ALGORITHM DEVELOPMENT FOR POSITION CORRECTIONS OF FIMS DATA

FIMS 관측 자료의 위치보정 알고리즘 개발

  • Lim, Y.M. (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Seon, K.I. (Korea Astronomy and Space Sciences Institute) ;
  • Min, K. (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Ryu, K.S. (Satellite Technology Research Center, Korea Advanced Institute of Science and Technology) ;
  • Park, J.W. (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Kim, I.J. (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Shinn, J.H. (Department of Physics, Korea Advanced Institute of Science and Technology) ;
  • Lee, D.H. (Korea Astronomy and Space Sciences Institute)
  • Published : 2005.12.31
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Abstract

The FIMS(Far-ultraviolet IMaging Spectrograph), the main payload onboard the first Korean Science Technology SATellite, STSAT-1, has performed various astronomical observations, including the Cygnus Loop, Vela supernova remnants, LMC(Large Magellanic Cloud), since its launch on September 2003. It has been found that the attitude information provided by spacecraft bus system has the errors of more than about 10-15 arcmins due to the time offset problem and errors in attitude knowledge. We develop an algorithm for correction of position errors in FIMS data. The aspect for the FIMS data is determined by comparing the positions of observed bright stars with the Tycho-II and TD-1 catalogs. The position errors of the bright stars along the scanning (${\gamma}$) and spatial (${\delta}$) directions were considered as functions of ${\delta}$, ignoring errors in position angle. The corrected positions of the bright stars coincided very well to their Tycho-II and TD-I positions. The correction algorithm is essential for the FIMS data analysis, and is being used for the FIMS data analysis.

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References

  1. 김일중, 선광일, 육인수, 남욱원, 진호, 박장현, 유광선, 이대희, 한원용, 민경욱, Edelstein, J., & Korpela, E., 2004, 한국우주과학회지, 21, 383
  2. 선광일, 유광선, 육인수, 박장현, 남욱원, 한원용, 선종호, 민경욱, Edelstein, J., & Korpela, E., 2000, 한국우주과학회지, 17, 77
  3. 선광일, 육인수, 유광선, 이대희, 박장현, 진호, 신종호, 남웅원, 한원용, 민경욱, Korpela, E., Nishikida, K., & Edelstein, J., 2004, 한국우주과학회지, 21, 399
  4. 유광선, 선광일, 민경욱, Edelstein, J., 1998, 한국우주과학회지, 15, 359
  5. 이대희, 유광선, 선광일, 박장현, 진호, 육인수, 남욱원, 한원용, 박재우, 이지나, 유광선, 민경욱, 2004, 한국우주과학회지, 21, 391
  6. Hog, E., Fabricius, C., Makarov, V. V., Urban, S., Corbin, T., Wycoff, G., Bastian, U., Schwek- endiek, P., & Wicenec, A., 2000, A&A, 355, L27
  7. Seon, K.-I., Pak, S., Park, J.-H., Yuk, I.-S., Jin, H., Name, U.-W., Han, W., Ryu, K.-S., Lee, D.-H., Oh, S.-H., Park, Y.-S., Korpela, E. J., Edelstein, J., Nishikida, K., Shinn, J.-H., Rhee, J.-G., Min, K.-W., & Kim, Y.-H., 2003, JKPS, 43, 565
  8. Seon, K.-I., Han, W., Nam, U.-W., Park, J.-H., Edel- stein, J., Korpela, E. J., Sankrit, R., Min, K.-W., Ryu, K., & Kim, I.-J., 2005, ApJL, accepted
  9. Thompson, G. I., Nandy, K., Jamar, C., Mon¯ls, A., Houziaux, L., Carnochan, D. J., & Wilson, R., 1978, Catalogue of stellar ultraviolet °uxes (TD-1): A compilation of absolute stellar $^{\circ}$uxes measured by the Sky Survey Telescope (S2/68) aboard the ESRO satellite TD-1 (London: Sci- ence Research Council)