LBTO Focal Station Checkout, 21-22 May 2013 UT

• LBTO Staff:
  • Doug and John in Remote observing room at Steward will be performing Focal Station checkout.
  • Juan Carlos online at home
• LBTI Staff:
  • Andy and Vanessa at LBTO
  • Anybody in the Remote Observing room?

LFBG focal station: Seeing Limited Mode

1. Initial pointing and alignment (1 hour)
   • See details in BGTechProcedures
2. Collimate with Active Optics to make sure hexapod motions are correct (30 minutes)
3. Collect field data set (8 stars) to check binodal astigmatism (Seeing < 1.0" or postpone) (1 hour)
   • Analyze LFBG field data set
     • < 1 hour required to determine if secondary position motion required
     • Switch to LCBG
     • LBTI spend this hour aligning the LCBG focal station and start diffraction limited testing
       • There are some internal alignments of LBTI, performed by LBTI people
   • If a motion > 15" (on-sky) of secondary required then back to LFBG
     • Switch back to LFBG
     • Make secondary TT motion correction
     • Measure field data set (8 stars) to check binodal astigmatism has improved (1 hour)
   • If a motion of < 15" then make no changes
4. Propagate the M2 TT values to other focal stations

LDG focal station

1. Revert pointing and collimation files back to SX AdSec values determined on 20130202 (daytime)
2. Switch to LDG focal station (15 minutes)
3. Initial pointing and alignment (1 hour, but not needed if LFBG is adjusted)
4. Collimate with Active Optics (15 minutes)
5. Collect field data set (8 stars) to check binodal astigmatism (Seeing < 1.0" or postpone) (1 hour)
   • Analyze LDG field data set
     • < 1 hour required to determine if secondary position motion required
     • If motion required, will make change tomorrow and start with LDG tomorrow night

LCBG focal station: Diffraction Limited Mode

1. LBTI Team will make Plan, LBTO people will support AdSec operation
   • Start with low order reconstructors, move to higher order to see if lost actuators have an effect