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30 Nov 2005 User Committee 1
Instruments: NAC
30 Nov 2005 User Committee 2
Instruments: NAC
30 Nov 2005 User Committee 3
NAC spectroscopy
• First-light spectra taken 1083-4666nm
• Four guest observing runs: A. Clark, D. Deming (2231nm), J. LoPresto (1600nm), C. Walker (1565nm)
30 Nov 2005 User Committee 4
NAC: X1.8 Flare 1083nm
30 Nov 2005 User Committee 5
NAC: X1.8 Flare 1083nm
30 Nov 2005 User Committee 6
NAC: X1.8 Flare 1083nm
30 Nov 2005 User Committee 7
NAC hardware issues
• Temperature drift in dewar (0.1K/day)
30 Nov 2005 User Committee 8
NAC hardware issues
• Higher read noise on spectrograph (80 e-)
30 Nov 2005 User Committee 9
NAC hardware issues
• Cooler vibrations from drive electronics
30 Nov 2005 User Committee 10
NAC software issues
• No scripting capability in observing command • No parallel port communication to LCVR controller• No communication to AO stepper motor• Small disk partition (33 Gbytes) for storing data• No system backup• Individual frames are stored as files• No dark/flat corrected real-time image• No processing capability (i.e. real-time spectroheliogram,
LCVR calibration, focusing, etc)• Several annoying GUI bugs
30 Nov 2005 User Committee 11
NAC future plans
• Spectroscopy– 1-3 microns: working now– 3-5 microns: order new filters, work on
systematic noise issues
• Polarimetry– (1-3 microns): parts in house and currently
testing – goal is Fall 2006– (3-5 microns): line list identified, substrates
identified – goal is 2006 test, early 2007 data, full system 2008.
30 Nov 2005 User Committee 12
CCD Guider
• Goals:– Test and verify TCS upgrade– Replace old limb guiders– Allow pointing to 1.5 solar radii– Provide full-disk solar image
• Hardware: – One flat pickoff mirror between M1 and M2– Beamsplitter, H-alpha filter, 2 imaging lenses,
CCD camera and video, PC control computer
30 Nov 2005 User Committee 13
CCD Guider
