Plan for September 2015 Startup Observing

Times listed are times on-sky without any weather contingency.

Decision Tree

Is Instrument Mounted?
   N: Check next instrument
   Y: Is Daytime Checkout Completed?
      N: Check next instrument
      Y: Is On-sky Wake-Up Completed?
         N: Do On-sky Wake-Up
         Y: Is it photometric?
            N: Are Software Tests Completed?
               N: Do software tests.
               Y: Do other engineering tests.
            Y: Is On-sky Calibration Completed?
               N: Do calibration observations.
               Y: Is Science Verification Completed?
                  N: Do verfication observations.

Notional Calendar Schedule (3 - 14 September 2015 UT)

(version of Sunday September 6)

  • Wednesday Sep 2 (3 UT)
    • Lost to weather, telescope and instrument problems
  • Thursday Sep 3 (4 UT)
    • Lost to weather, telescope and instrument problems
  • Friday Sep 4 (5 UT)
    • Lost to weather, telescope and instrument problems
  • Saturday Sep 5 (6 UT)
    • Lost to weather and telescope problems
  • Sunday Sep 6 (7 UT)
    • First half - LBC wake-up
    • AGW2 and Rigid M2 wake-up (pending AGW2 repair)
  • Monday Sep 7 (8 UT)
    • First half - Rigid M2 Field Aberrations with AGW2
    • LBC Superfoc sequences or photometric calibrations depending on sky conditions.
  • Tuesday Sep 8 (9 UT)
    • First half - MODS2 wake-up (pending daytime checkout)
    • Second half - LUCI2 wake-up
  • Wednesday Sep 9 (10 UT)
    • TBD

Instrument Wake-Up (must be done before science can begin = highest priority)

LBCs

  • LBC-Blue wake-up
    • sky flats (check filter IDs)
    • DONE filter wheel alignment checks (twilight)
    • DONE Pointing, including telescope wake-up
    • DONE Check rotator center
    • DONE DOFPIA collimation
    • DONE Superfoc sequences (check focal plane tilt)
    • DONE Guiding for imaging
    • DONE Dithered imaging

  • LBC-Red wake-up
    • sky flats (check filter IDs)
    • DONE filter wheel alignment checks (twilight)
    • DONE Pointing
    • DONE CoPointing
    • DONE Check rotator center
    • DONE DOFPIA collimation
    • DONE Superfoc sequences (check focal plane tilt)
    • DONE Guiding for imaging
    • DONE Dithered imaging

MODS

  • DONE MODS1 Daytime Checks
1/ check detector health, mechanisms and comparison + VFLAT + QTH lamps by
taking:
  a) biases and
  b) slitless pixel flats (these spread light over entire area of detector
and help to see if there are any sequencer issues).
  c) grating and prism comp lamps

 2/ Daytime cals (dome lights off)
   a) slitless pixel flats (for spectrophot standards)
   b) slit flats (for spectrophot standards)
   c) imaging flats (for Stone fields photometry)
   d) if the 2 astrometric masks are loaded, we should run through cals on
these, too, in case any spectra are taken on Stone A, which has some slits
over bright galaxies. It would be a way for us to collect data with which
to familiarize ourselves with the MOS pipeline (when or if we have the
time...)

  I should make a copy of the bias and slitless pixel flat and comp lamp
calibration scripts but edit these to reduce the number of images taken and
to tag them as "checkout" so these will not be mistaken for actual
calibrations, which should be taken at zenith with dome lights off.

3/ Note --- with MODS2 --- calibrations times need to be adjusted --- using
the same scripts as for MODS1 gives near-saturation.

  • MODS1 wake-up (1.0 night, preceded by daytime tests by Olga)
    • DONE MODS1 pointing, acquisition check, including telescope wake-up
    • DONE MODS1 collimation check
    • DONE MODS1 imaging test w/offsets
    • MODS1 stage centering wrt/rotator center
    • MODS1 long slit acquisition
    • DONE MODS1 MOS acquisition
We'll make 2 masks which cover the Stone O and Stone A fields - these 2
fields cover the night. We can duplicate the masks so we'll have one in
MODS1 and one in MODS2. With these we can check MOS alignment.
Scripts are ready (these were easy to create...)

We can observe Stone O and Stone A to check offsets, by running a dice 5
pattern several times. I have to admit I am not exactly sure what this does
except to check that the offsets are repeatable and are in the direction
and magnitude we expect. We can do absolute RA/DEC offsets to get the info
in the header and do astrometry on the images to check these offsets. Since
MODS has the AGw built-in, unlike LUCI, this is really not so urgent for
MODS.

We can also run a slitscan sequence to measure any adjustment needed to the
rotator zero point. (The MOSalignment also gives this value). We can use
Stone O and Stone A again or any BS star. Script coming... (I learned in
May that we do not want to follow a series of <10-sec exposures by a long,
120-sec slit exposure. The problem with this is that the IMCS runs closed
loop only for t>=10sec, and so it kicks in only on the 120-sec slit image
where, with the shutter open, the collimator is adjusted causing the slit
to look smeared. Better to do the slit image first, or to make all of the
exposures > 10-sec.

  • MODS2 wake-up (0.5 night, preceded by daytime tests by Olga)
    • MODS2 pointing, acquisition check, including telescope wake-up
    • MODS2 collimation check
    • MODS2 imaging test w/offsets
    • MODS2 stage centering wrt/rotator center
    • MODS2 long slit acquisition
    • MODS2 MOS acquisition

  • MODS in bad weather
    • TTF zeropoints: EL=60, ROT=207, and a range of ELs for ROT=207
    • Check for light leaks

LUCI2

  • AGw2 wake-up(2hrs, preceded by daytime tests)
  • AGW2 basic alignment
  • Rigid M2 Field Aberrations
  • LUCI2 wake-up (0.5 night, only after LUCI2 is remounted on Sep X and daytime checkout by DaveT)
    • LUCI2 sky flat
    • LUCI2 pointing, acquisition check
    • LUCI2 stage centering wrt/rotator center
    • LUCI2 collimation check
    • LUCI2 imaging test w/offsets
    • LUCI2 MOS acquisition (did long slit acqs)

PEPSI PFU

Telescope Calibrations

Pointing Models

Instrument Calibrations

LBCs

  • LBC standards for photometric calibrations (0.5 night, photometric)
  • DONE LBC filter focus calibrations with superfoc7 at 0,180 in "Low" position (0.5 night, seeing=good)
  • LBC observations of Galactic Star Clusters (or semi-dense fields) to map distortions at several PAs (0.5 night, seeing=any, weather=poor) [see Barry]

MODS

  • MODS1 and MODS2 standards and calibrations (1 night, photometric)
If photometric --- Stone O and Stone A again are pretty good fields, as
they are covered by SDSS. Stone A is rife with galaxies, though it has lots
of stars too.

We should do the exercise of observing a spectrophot standard in all modes,
even if not photometric. But on a photometric night, we could obtain
several standards, in dual grating mode only, at a range of airmasses for
an extinction correction --- this could take a while.

LUCI2

  • LUCI2 standards and calibrations (1 night, photometric)

Instrument Real Observing (Science Verification)

LBCs

  • LBC observing (1 night, spectroscopic)
    • DONE short exposure mosaics
    • deep fields (for science cadence and LBC image quality issues) (Fields at different elevations are interesting for image quality comparison.)
    • non-sidereal

MODS

  • MODS1 and MODS2 observing (1 night, spectroscopic)
    • deep LS spectroscopy
    • NS spectroscopy

LUCI2

  • LUCI2 observing (1 night, spectroscopic)
    • deep MOS spectrocopy (did long slit)
    • NS spectroscopy

Software Tests

Uses LBCs

  • WRS tests with LBC Blue (priority = medium, time= 2 hr, seeing < 1.5, thin clouds OK)

  • Test LBC Software V2.1
This is the version with tracking/IA running on the CMU.
Of course, it's useless in closed dome tests - it really needs to find stars
to be useful. 

Parallel Activities

  • More testing of LBC parallel observations in pseudomono mode (including the automatic collimation script that John hasn't written yet) (priority=low, time=2hr)

  • DIMM spiral search (priority=medium, time=2 hours - can be in parallel with other tasks tracking stars)

Adaptive Optics Tests

Uses LUCI2

  • Observations with Tip-Tilt Mode for LUCI2 observations and to checkout AGW2 (priority=medium, seeing<1.5 arcsec, time=3hrs)

  • NCPA Tests - see Simone email of 20150704 - W/O LUCI2
    1. point 2 bright star ~ 30min
    2. record closed loop data for about 15min with NCPA ON and OFF low order mode~ 45min
    3. record closed loop data for about 15min with NCPA ON and OFF mid order mode~ 45min
    4. record closed loop date for about 15min with standard NCPA method for comparison. ~45min In total we find about 3H of test.


BELOW THIS LINE IS POPULATED WITH OLD INFORMATION FROM 2014.


Uses LBTI SX

  • Closing LBTI Adaptive Loop on SX alone (priority=high, time=3hrs, seeing < 1.5 arcsec)

Pointing and Collimation

  • Adjusting off-axis guiding parameters for high elevation (priority medium, time=2 hrs, seeing<1.5 arcsec, clouds OK) JHill

Uses MODS1

  • MODS1 active optics with the rotation of the pupil position (in IDL or patched GCS)(priority=medium, time=1 hr, seeing<1.5 arcsec,
thin clouds OK) D. Miller

  • Active Optics new reconstructor tests with MODS1 (and MODS2) (priority=medium, time=4hr, seeing<1.8 arcsec, thin clouds OK) D. Miller

Uses LUCI1

  • DONE AGw1 positioning performance with LUCI1, transform_collect (priority=high, time=2 hrs, seeing<0.8 arcsec, thin clouds OK)

  • DONE Field aberration data with AGW1 (priority=low, time=2 hrs, seeing<0.8 arcsec, thin clouds OK)

Uses LBC

  • Collect new binocular pointing data with LBC (priority=medium, time=2hrs, seeing<2 arcsec, thin clouds OK)
    Try to get half a dozen extra stars at the highest elevations.









Postponed until later, pehaps much later

New LBC CCD Controllers

  • On-sky tests of new LBC Controllers
    • Sky flats
    • Collimation
    • Guiding
    • Deep imaging fields

  • Update timing in DOFPIA / LBCFPIA for new controllers with different latency of readout.

DX AdSec

  • Adjust pointing and coma for the remounted DX Adsec.

  • Test the new right side Gregorian pointing model that Dave T made in the spring. /home/LBTO/dthompson/PtModel_20140121

  • Check out of repaired DX AdSec and AGW2
    • AGw2 wake-up
    • AGW2 wake-up
    • Closing FLAO Adaptive Loop on DX
    • IRTC tests with the corrected dichroic angle (to verify the angle that W2 is to be aligned to)

  • AGw2 positioning performance with transform_collect

  • Measure RFBG pupil wobble with AGW2 and possibly adjust M3 position (priority=high, time=2 hrs, seeing<1.0 arcsec)

  • DX binodal (priority=high, seeing<0.8 arcsec, mostly clear)

  • Closing LBTI Adaptive Loop on SX and DX (priority=high, seeing < 1.5 arcsec)

  • Collect new binocular pointing data with MODS or LUCI (priority=medium, time=2hrs, seeing<2 arcsec, thin clouds OK)

MODS1

  • MODS1 modified active optics focus and checkout

MODS2

  • MODS2 active optics with the rotation of the pupil position (in IDL or patched GCS)

  • MODS binocular software

TCS new Build

PEPSI

  • Test new PEPSI guide CCD controllers ???

-- %USERSIG{JohnHill - 2015-07-01}%
Topic revision: r16 - 13 Sep 2015, JohnHill
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding Foswiki? Send feedback