Sending a Preset in IRAF
Monocular Presets
Set or note the current authorizations in IIF. From here everything assumes that the telescope/TCS is up and ready to work.
Get IRAF open and setup:
- Open an IRAF XGterm. On obs1, this is the bottom launch panel as a blue star icon.
- Open a DS9 display server.
- Type epar LBTtools to edit the LBTtools package parameters
- Set observer, camera, utdate, and Telside as appropriate
- Set archive to /newdata or /Repository/
- Set focstat if camera is IRTC to edit the Observe package parameters
- Exit with :go to save parameters and load the package.
- Type epar Observe to edit the Observe package parameters
- Consider the IRTC package deprecated as of Nov 2010.
- Observe does the same thing as IRTC, but is binocularized.
- Check that sendcam and sendtel are both yes if you expect to observe.
- Exit with :go to save parameters and load the package.
Create a working directory and prepare it for LBTtools:
- Note: You can run this from /home/telescope/iraf, but this will slow things down
- cd /scratch/OSAnotes (create if necessary)
- mkdir 20101113 (or whatever the current UTdate is)
- cd 20101113
- prepdir
Register the instrument you will work as.
- This sets up the channel to the IRS that iraf will use to send commands to the TCS.
- Register reads the LBTtools parameters it needs
- Type register INSTRUMENT
This is the HELP from the
register task:
HELP: ===========================================================
Valid instrument strings include:
LUCIFER, LBC, MODS, LBTI, IRTC
Note: using camera=IRTC also requires the focal station
to be set appropriately in the LBTtools parameters.
=================================================================
Select a target source:
- Catalogs are now kept in /lbt/catalogs in a new format
- For a readable listing, still reference the LBTdefault catalog:
- in a terminal window, type cd ~/Catalogs
- type more LBTdefault.cat.
- Pipe to grep/sort as desired
- Pointing stars are WT10* and ACT*
- Persson standards are BS* (bright star)
- Or use Steve's pointnear script
Check the catalog if you need to:
- Type showcat sourcename for a listing of the catalog for sourcename
- Type showFC sourcename jpg to bring up a finding chart for this field
Send the preset:
- Type unlearn newpoint to reset parameters to their defaults (e.g. TRACK mode)
- Type newpoint sourcename with sourcename set to the source you selected
- Other parameters can be set on the command line as needed:
- newpoint BS9101 Tel="ACQUIRE" gs=0 (to start acquire mode on axis)
- newpoint BS9101 Tel="ACTIVE" gs=2 (to collimate with an off-axis guide star)
Other things to keep in mind:
- TRACK mode does not require a guide star.
- Setting gs=0 puts the probe on axis.
- Newpoint automatically sends presets in Position Angle Mode. For PARALLACTIC mode, send newpoint with PAM- PA=0
Here are some examples:
- newpoint ACT0234 TelM=track
A basic track mode preset. The TelMode can be omitted if you have unlearned newpoint as this is the default.
- newpoint ACT0234 TelM=acquire gs=0 PAM- PA=0
This is handy for pointing stars, as you can find the star in the GCS acquisition window, in parallactic mode, so that IE/CA corrections are updown/leftright on the acquire image.
Binocular Presets
- Make a second instance of IRAF for the Right Side:
- mkdir /scratch/RIGHT
- cd /scratch/RIGHT
- mkiraf
- xgterm -e cl &
- epar LBTtools and set up appropriate instrument, side, date (LBC, right, 20120607)
- LBTtools
- Observe
- lpar newpoint
- likewise, set up LEFT side in your normal IRAF window
- set up sync preset (indicated by BC=1) and send these one after another
- on left
- newpoint ACT0213 Tel="ACQUIRE" gs=0 BC=1
- on right
- newpoint ACT0213 Tel="TRACK" BC=1
Binocular Acquisitions
- Send SYNC ACQUIRE presets on both sides to a pointing star.
- Spiral the mount rather than the optics. When the star is seen on one of the sides, record the IE/CA value for that side. Continue spiraling the mount until the star is found on the other side, and record that IE/CA value.
- Set the new IE/CA values on both sides.
- Continue with your next SYNC ACTIVE preset.
Note: It is much preferred to spiral the mount, because:
a) the mount is faster than the optics
b) the optics can run out of range as the spiral proceeds and hit limits.
--
SteveAllanson - 03 Oct 2010