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Title: Discovery of an Unusual Optical Transient with the Hubble Space Telescope
Authors: K. Barbary, K. S. Dawson, K. Tokita, G. Aldering, R. Amanullah, 
N. V. Connolly, M. Doi, L. Faccioli, V. Fadeyev, A. S. Fruchter, G. Goldhaber,
 A. Goobar, A. Gude, X. Huang, Y. Ihara, K. Konishi, M. Kowalski, C. Lidman,
 J. Meyers, T. Morokuma, P. Nugent, S. Perlmutter, D. Rubin, D. Schlegel,
 A. L. Spadafora, N. Suzuki, H. K. Swift, N. Takanashi, R. C. Thomas,
 and N. Yasuda (The Supernova Cosmology Project)
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Description of contents: 
This package contains the spectroscopic data of 
SCP 06F6 as represented in Fig. 3. There are three ASCII files; one for each 
of the spectra shown in Fig. 3:

20060422_SUBARU.dat : 2006 April 22 Subaru FOCAS spectrum
20060518_VLT.dat : 2006 May 18 VLT FORS2 spectrum
20060528_KECK.dat : 2006 May 28 Keck LRIS spectrum

Each file contains wavelength and flux on each line separated by a space.
Wavelength units are Angstroms (0.1 nm).
Flux is Flambda with units of ergs/s/cm2/Angstrom.


System requirements: None


Additional comments: 
Each spectrum is flux-calibrated to within an overall 
multiplicative factor. 

The Subaru spectrum covers wavelengths longward of 
5900~\AA, while the VLT and Keck spectra cover bluer wavelengths.
The VLT spectrum (observed at airmass $> 2$) is corrected for differential 
slit loss by applying a linear correction with a slope of 0.25 per 1000~\AA, 
derived from a comparison to the Keck spectrum, which covers the 
entire wavelength range of the VLT spectrum.
The Keck observation was made at the parallactic angle, 
while Subaru FOCAS is equipped with an atmospheric dispersion corrector,
making the Keck and Subaru observations more reliable measures of 
relative flux.

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