SPECTRUM LOG:

     JD times for the SN 1997cn spectra of turatto1998.

     Bmax 1997may15.4 UT (JD 2450583.9) (jha2006, p. 549).
          1997may19.5 +/- 1 UT (JD 2450588) (turatto1998, p. 2434).
     Since turatto1998 have some earlier data and it is all postmax,
     we will trust turatto1998 for now.

     Are the turratto wavelengths are observed or rest?
     Very, very few clues.

     JD Bmax   Heliocentric velocity (Leda, 2007jul01)
     0588.     4855.
 
 
     Heliocentric velocity     Z redshift
           4855.0000000000   0.0161945368
 
     Index     JD of some kind Observer phase     Rest phase
 
         1      590.6200000000   2.6200000000   2.5782464922     ! turatto1998  1997may22.12  3543.0400000000--7411.4399514618
         2      614.8500000000  26.8500000000  26.4221062278     ! turatto1998  1997jun15.35
         3      665.5200000000  77.5200000000  76.2846061370     ! turatto1998  1997aug05.02