The observations reported here were made with ISO, an ESA project with instruments funded by ESA member states (especially the PI countries: France, Germany, The Netherlands, and the UK) and with the participation of ISAS and NASA, and with the facilities at the Cerro Tololo Inter-american Observatory (CTIO), NOAO, which is operated by AURA, Inc., under contract with NSF, at the Kiso Observatory, which is operated by Institute of Astronomy, the University of Tokyo, and at the Okayama Astrophysical Observatory, the National Astronomical Observatory of Japan.

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CIA is distributed by the ISO Data Centre and the ISOCAM Data Centre at Saclay, France.

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... V8.1

PIA is a joint development by the ESA Astrophysics Division and the ISOPHOT consortium.

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... correction

Vignetting correction is set to on in the default setting of PIA. However, the effect of the correction is none; just multiplying the data by 1.0, because the chopper throw is zero in the PHT22 raster mode.

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... IRAF

IRAF is distributed by NOAO.

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... Skyview

Skyview is distributed by IPAC.

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... $L_{\nu}$

$L_{\nu}$ is defined by $4\pi D_{\rm L}^{2}\nu f_\nu$ where $D_{\rm L}$ denotes the luminosity distance to the object.

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