SPECTRUM LOG:

     JD times for the SN 2002cx spectra of li2003
     Bmax from li2003 where the JD Bmax is JD 2452415.2 +/- 1.0 (p. 457)
     which is 2002may20.70 UT.

     Unfortunately, li2003 only provides whole number dates, and so
     some of the JDs' below are just placeholders until the real ones are
     available.

     The first 4 spectra have JD from the FITS headers of the
     cfa supernova archive spectra.

     The next 5 were taken at the Keck telescopes in Hawaii which is 10 hours = .4 days
     behind UT.  Thus, .4 UT is midnight in Hawaii.  Thus, the others were .4 +/- .3 UT.
     That's the best estimate I can make right now.

     As  far as I can tell all the cfa supernova archive spectra
     are in the observer frame.

     The spectra from David Branch's directory /home/branch/synow/sn2002cx
     seem to be all in the rest frame.

     JD Bmax   Heliocentric velocity (Leda, 2007jun30)
     52415.20  7183.
 
 
     Heliocentric velocity     Z redshift
           7183.0000000000   0.0239599090
 
     Index     JD of some kind Observer phase     Rest phase
 
         1    52411.7200000000  -3.4800000000  -3.3985705588     ! li2003  2002may17.22   3720.00--7521.00
         2    52414.6800000000  -0.5200000000  -0.5078323823     ! li2003  2002may20.18   3720.00--7540.50
         3    52427.7000000000  12.5000000000  12.2075091912     ! li2003  2002jun02.20   3720.00--7540.50
         4    52431.6800000000  16.4800000000  16.0943801176     ! li2003  2002jun06.18   3720.00--7500.00
         5    52435.9000000000  20.7000000000  20.2156352206     ! li2003  2002jun10.4    4187.08--10054.46 
         6    52440.9000000000  25.7000000000  25.0986388971     ! li2003  2002jun15.4
         7    52441.9000000000  26.7000000000  26.0752396324     ! li2003  2002jun16.4
         8    52442.9000000000  27.7000000000  27.0518403676     ! li2003  2002jun17.4
         9    52471.9000000000  56.7000000000  55.3732616912     ! li2003  2002jul16.4