Download Chapter 4 Data reduction logical step sequence

FLAMES-UVES Data Reduction Users’ Manual
VLT-MAN-ESO-19500-3016
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8.9 Object information given on plots of merged spectra
In case of FLAMES-UVES data important information contained in the binary table extensions is added.
On the basis of given fib_id parameter, PLOT/UVES will display in the plot information about the observed
object (object id, its magnitude, right ascension and declination, fiber id). This information is taken from
tables with names containing the prefix xt_ (xt_sci_l.tbl and xt_sci_u.tbl for science step). Those tables
contain the collapsed information carried on by the two binary extention table for the FLAMES-UVES fibres.
Of particular interest to the user may be columns: FIBREORD (which indicates the order of fibres red from
the DRS), OBJECT (object’s ID), MAGNITUDE (object’s magnitude), RA (object’s right ascension), DEC
(object’s declination). Using command level 1 extracted spectra will contain a numeric extension 000N (N=29 in case of OzPoz mode and N=1-8 in case of SimCal mode), where typically N corresponds to the fibre ID
(1 for the SimCal fibre, 2-9 for other fibres).