Basic README for FEROS DRS
==========================
### "@(#) $Id: README 2844 2015-11-17 13:46:05Z jpritcha $"

See also the README file in the directory above.


1. Create necessary catalogs

@@ prepare


2. Initialise the DRS...

@@ init ThAr<NNNN> start

For data acquired after Sep 9th, 2004 use:

@@ init ThAr<NNNN> start 0.85

This will SEARCH the FF to locate the orders, which with the FF improvements
made Sep-9th, 2004 (see
http://www.ls.eso.org/lasilla/sciops/2p2/E2p2M/FEROS/InstrumentCharacteristics/InstrumentConfiguration.html#FCU
) all 39 orders can be reliably located.

If you find too many or too few orders then rerun the command with an extra
command line parameter:

@@ init ThAr<NNNN> start 0.85 Y

which will allow you to interactively adjust the threshold in order to fine
tune it so as to locate precisely 39 orders.


3. For data from the ESO-1.52m, check Objects.cat, for missing TCS-Infos,
e.g. cident. if this is the case, insert the descriptor o_pos. Otherwise
comp/prec will be wrong or fail.


4. Create cident entries in the table Objects.tbl and insert options
for dark subtraction and extmode (see check.prg)

To set these options manually at the MIDAS command prompt use:

  *) To enable DARK subtraction:
write/key dark/c/1/1 "D"

  *) To disable DARK subtraction:
write/key dark/c/1/1 "N"

  *) To set the extraction mode to Standard
set/feros EXT_MODE=STANDARD
write/key def_extmode/c/1/1 "S"

  *) To set the extraction mode to Optimum Extraction with Cosmic Ray
detection:
set/feros EXT_MODE=OPTIMUM
write/key def_extmode/c/1/1 "O"

  *) To set the extraction mode to Standard with Cosmic Ray detection:
set/feros EXT_MODE=MIXED
write/key def_extmode/c/1/1 "M"

  *) To perform BOTH standard AND Optimal extractions
set/feros EXT_MODE=BOTH
write/key def_extmode/c/1/1 "B"

  *) To perform Standard with and without Cosmic ray detection and Optimal
extractions
set/feros EXT_MODE=ALL
write/key def_extmode/c/1/1 "A"


5. Reduce the data...

@@ autoreduce_cat Objects.cat

For FIERA data you can also do...

@@ autoreduce_cat std.cat
@@ autoreduce_cat sol.cat

And if you want to reduce the Flats and WLC frames...
write/key RedAllIms/c/1/1 "Y"
@@ autoreduce_cat FF.cat
@@ autoreduce_cat ThAr.cat



J.D.Pritchard <j.pritchard@eso.org>
2004-11-16