WFC3/UVIS Detectors: On-orbit Performance

نویسندگان

  • S. M. Baggett
  • T. Borders
  • S. Deustua
  • R. L. Gilliland
  • J. S. Kalirai
  • R. A. Kimble
چکیده

WFC3 is a fourth-generation instrument installed on HST in May 2009. Designed as a panchromatic camera, it features both a UVIS and an IR channel, selectable via a channel select mechanism (CSM), allowing sequential imaging. Both detectors are performing well on-orbit and are now in standard science operations. This poster presents some of the UVIS detector highlights as well as remaining issues being addressed.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Preliminary WFC3 UVIS PSF Evaluation

We have made an initial assessment of the image quality of the WFC3 UVIS channel with its flight detector installed. Point source measurements at four field positions and four wavelengths indicate excellent imaging performance for the UVIS channel, with CEI encircled energy specifications readily achieved.

متن کامل

WFC 3 UVIS PSF Evaluation in Thermal - Vacuum Test # 3

We have assessed the image quality of the WFC3 UVIS channel in a flight-like thermalvacuum environment, and with its flight detector installed. Point source measurements at 16 field positions and four wavelengths indicate excellent imaging performance for the UVIS channel. Encircled energies readily meet expectations over the field, with CASTLE stimulus illumination. Models including the mid-fr...

متن کامل

WFC 3 2008 - 32 WFC 3 Optical Alignment Characterization in Thermal - Vacuum Test # 3

We have performed an assessment of the optical alignment of the WFC3 instrument in its final flight configuration, including the UVIS-1’ and IR-4 detectors, during the 3 thermal-vac test in March 2008. Both detectors are found to be aligned to well within tolerance in all degrees of freedom. The corrector settings, after adjustment to optimize image quality, are within the budgeted range for gr...

متن کامل

The Photometric Performance and Calibration of WFC3

We analyze multiple observations of five bright HST spectrophotometric standard stars obtained with WFC3/UVIS and WFC3/IR in order to establish the temporal stability of the instrument over its first year of science operations and its photometric sensitivity. Observations of the five stars, GD 153, G191B2B, GD 71, GRW+70d5824, and P330E were obtained at multiple dither positions at each epoch i...

متن کامل

Photometric Repeatability of Scanned Imagery: UVIS

We provide the preliminary results of a study on the photometric repeatability of spatial scans of bright, isolated white dwarf stars with the UVIS channel of the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST). We analyze straight-line scans from the first pair of identical orbits of HST program 14878 to assess if sub 0.1% repeatability can be attained with WFC3/UVIS. This study...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012