From kawabata@subaru.naoj.org Mon Mar 04 12:07:18 2002

I02ddCAL.xy : Flux data (dd=08, 09, 10, 11; obs date)
They are scaled as the flux at 5550A corresponds to the
CCD photometry by Lew Cook (VSNET).
http://www.astr.tohoku.ac.jp/~kawabata/sn2002/VMAGEST.jpg
I have not corrected for strong atmospheric absorption
around 6900 and 7600A due to O_2 and interstellar absorption
such as Na D.

qupt02dd.xy : Polarization data (dd=08, 09, 10)
They include lambda(A), q(%), u(%), P(%), theta(deg), Perr.
The data are binned to a constant photon noise of Perr = 0.05 %.
I ignore the spectropolarimetric data on Feb. 11 because they
had much lower S/N than those on other days.

quptmean.xy : Polarization data averaged over above three days.
In this period, no significant change was seen in polarization
properties as seen in the above plot. Data format is same as
above files. The data are binned to a constant photon noise
of Perr = 0.02 %.

I have not corrected for the heliocentric redshift in these data.

**************************************************
Perr must stand for photon noise error.
I assume no reddening correction either

NGC 628 = M74
heliocentric velocity
from lines in sn spectra  +631 km/s  iauc 7822 S. Smartt & P. Meikle
from Leda  in radio       +656 km/s
from Leda  in optical     +639 km/s
from Leda  mean           +656 km/s

Foreground extinction in
B from Leda/Schlegel   0.30
E(B-V)=.30/4           0.075
E(B-V)=.30/4.1         0.073  See Cardelli p. 249
Paolo E(B-V)           0.08


**********************************************

Polarization   2002 feb 10

lambda(A), q(%), u(%), P(%), theta(deg), Perr.

END:
  4036.31812 -1.15359998
  4228.21924 -0.485900015
  4338.38916 -0.570200026
  4419.16309 -0.489399999
  4479.28076 -0.513700008
  4525.94922 -0.47420001
  4566.34619 -0.606700003
  4606.64209 -0.763999999
  4646.9502 -0.541800022
  4687.38818 -0.61650002
  4728.146 -0.544700027
  4764.65283 -0.479699999
  4789.12305 -0.5079
  4813.72412 -0.574800014
  4837.43701 -0.553499997
  4857.11719 -0.519299984
  4878.74316 -0.681299984
  4898.021 -0.656000018
  4919.90479 -0.685500026
  4938.83398 -0.6796
  4961.12012 -0.515200019
  4979.61182 -0.49939999
  5003.04199 -0.549499989
  5021.48193 -0.573300004
  5043.92285 -0.587499976
  5060.53613 -0.492000014
  5074.22705 -0.549099982
  5087.89404 -0.447100013
  5101.55713 -0.734300017
  5115.21387 -0.508300006
  5128.88623 -0.504100025
  5142.52881 -0.682900012
  5156.1958 -0.589900017
  5169.87109 -0.632000029
  5183.53076 -0.586799979
  5197.19678 -0.466199994
  5210.86914 -0.753499985
  5224.54297 -0.560899973
  5238.21582 -0.537599981
  5251.89014 -0.563399971
  5265.56885 -0.566200018
  5279.24902 -0.510399997
  5292.91211 -0.548399985
  5306.58301 -0.56220001
  5320.25195 -0.714299977
  5333.9248 -0.663100004
  5347.59619 -0.655300021
  5361.26807 -0.574299991
  5374.93506 -0.495900005
  5388.61279 -0.633400023
  5402.28613 -0.671400011
  5415.95898 -0.564499974
  5429.63281 -0.577300012
  5443.30713 -0.583199978
  5456.97998 -0.694599986
  5470.5752 -0.620199978
  5478.30176 -0.598399997
  5491.99609 -0.596599996
  5505.68506 -0.519699991
  5519.32812 -0.566799998
  5533.00098 -0.529799998
  5546.67676 -0.578499973
  5560.33301 -0.623300016
  5574.00098 -0.76700002
  5587.65918 -0.568799973
  5601.32324 -0.47209999
  5614.97607 -0.570900023
  5628.65479 -0.539900005
  5642.32324 -0.635200024
  5656.00293 -0.519599974
  5669.68604 -0.654799998
  5683.37012 -0.4833
  5697.05811 -0.479099989
  5710.74121 -0.556299984
  5724.42822 -0.452699989
  5738.09619 -0.492799997
  5751.76904 -0.4824
  5765.44385 -0.434899986
  5779.10986 -0.658699989
  5792.78418 -0.540700018
  5806.45215 -0.548799992
  5820.12109 -0.504899979
  5833.79102 -0.508300006
  5847.46289 -0.37349999
  5861.14014 -0.524800003
  5874.81592 -0.449400008
  5888.49121 -0.503400028
  5902.16992 -0.523999989
  5915.84521 -0.500899971
  5929.521 -0.523699999
  5943.20215 -0.478599995
  5956.89502 -0.614400029
  5970.61182 -0.486799985
  5984.36621 -0.425799996
  5998.16406 -0.466699988
  6012.01123 -0.604799986
  6028.21484 -0.734499991
  6047.97607 -0.539900005
  6074.56592 -0.617799997
  6102.40088 -0.543799996
  6131.00391 -0.531499982
  6158.76904 -0.513000011
  6186.62305 -0.569000006
  6214.4668 -0.509299994
  6242.2749 -0.5449
  6269.97607 -0.594799995
  6297.89795 -0.699199975
  6325.6709 -0.5449
  6353.43018 -0.668099999
  6381.19482 -0.522300005
  6409.02393 -0.604300022
  6436.78906 -0.49180001
  6464.60107 -0.600600004
  6492.43994 -0.461199999
  6520.2168 -0.538100004
  6547.98193 -0.461899996
  6575.76514 -0.566600025
  6603.57812 -0.565800011
  6631.37207 -0.559099972
  6659.16309 -0.611999989
  6686.97998 -0.672500014
  6714.77295 -0.771700025
  6742.56104 -0.577600002
  6770.33887 -0.418799996
  6798.16895 -0.550700009
  6825.96289 -0.464399993
  6853.68311 -0.461400002
  6881.96777 -0.406800002
  6909.58008 -0.592000008
  6937.24023 -0.334500015
  6965.00098 -0.489100009
  6992.7832 -0.387600005
  7020.58691 -0.422300011
  7048.35498 -0.546199977
  7076.16309 -0.449000001
  7104.01123 -0.56129998
  7131.79102 -0.540700018
  7159.51709 -0.716099977
  7187.38623 -0.483099997
  7215.1582 -0.523999989
  7242.96582 -0.584699988
  7270.68701 -0.370000005
  7305.3501 -0.602900028
  7346.83496 -0.677100003
  7388.49512 -0.723800004
  7430.22412 -0.628199995
  7478.68604 -1.02429998
  7541.71484 -0.998300016
  7617.64795 -0.853200018
  7688.93213 -0.418300003
  7743.90918 -0.209700003
  7792.31299 -0.300000012
  7833.76807 -0.26879999
  7875.4502 -0.275599986
  7917.16797 -0.314099997
  7958.75879 -0.422199994
  8000.54492 -0.427399993
  8042.12109 -0.428499997
  8083.74512 -0.698499978
  8132.55322 -0.436500013
  8188.29297 -0.715300024
  8244.34668 -0.494100004