1 / 13

Enhancements and Challenges of NAC Spectroscopy and CCD Guider User Committee Operations

The NAC User Committee is focused on spectroscopy advancements, capturing first-light spectra ranging from 1083-4666 nm and conducting guest observing runs. Challenges such as temperature drift in the dewar and higher spectrograph read noise (80 e-) impact data quality. Software limitations include lack of scripting capabilities and system backup. Future plans involve expanding spectroscopy into the 1-5 micron range and refining polarimetry techniques with the aim of enhancing solar imaging and analysis. Hardware upgrades for the CCD Guider aim to improve solar imaging capabilities.

rozene
Télécharger la présentation

Enhancements and Challenges of NAC Spectroscopy and CCD Guider User Committee Operations

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Instruments: NAC User Committee

  2. Instruments: NAC 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) User Committee

  4. NAC: X1.8 Flare 1083nm User Committee

  5. NAC: X1.8 Flare 1083nm User Committee

  6. NAC: X1.8 Flare 1083nm User Committee

  7. NAC hardware issues • Temperature drift in dewar (0.1K/day) User Committee

  8. NAC hardware issues • Higher read noise on spectrograph (80 e-) User Committee

  9. NAC hardware issues • Cooler vibrations from drive electronics 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 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. 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 User Committee

  13. CCD Guider User Committee

More Related