STScI Logo

Hubble Space Telescope
Wide Field Camera 3

The Horsehead Nebula in Infrared


The Wide Field Camera 3 (WFC3) is a fourth-generation UVIS/IR imager aboard the Hubble Space Telescope (HST). WFC3 was installed in May 2009 during HST servicing mission 4, and replaces the Wide Field Planetary Camera 2 (WFPC2).

WFC3 Status

The UVIS and IR Channels are operating nominally.

WFC3 STAN Archive
All Telescopes documents of interest to WFC3 users

Late Breaking News from the Last 45 Days

Please note that the default aperture radius for WFC3/UVIS is 0.4 arcsec (90% of encircled energy). For 80% of encircled energy, use an aperture with radius 0.2 arcsec, comparable to the ACS default.

Quick-Start Advice to Run Reverse Correction for CTE now available here: CTE Tools

WFC3 Throughput are now available as text files: Throughput Tables

News Archive

Documents added in the last 45 days

WFC3 STAN - Issue 19, October 2014
1 WFC3 Celebrates its 5 Year Anniversary
2 Newly Improved and Updated WFC3/UVIS Distortion Reference Files
3 Using the Quad Filters with WFC3/UVIS
4 WFC3 Talks and Posters Presented at 2014 Calibration Workshop
5 New Documentation
WFC3 08 Oct 2014

ISR 2014-20: Update on the WFC3/UVIS Stability and Contamination Monitor
The photometric throughput of WFC3 is measured periodically throughout the year to evaluate its stability as a function of time and wavelength, as well as to check for the presence of possible contaminants in the UVIS channel. These monitoring data consist of observa- tions of the white dwarf spectrophotometric standard GRW+70d5824, taken in a subset of key filters covering 200-600 nm, with F606W and F814W acting as controls on the red end. Here we analyze the observations from 2009 to mid-2014. No contamination effects have been detected, though small photometric drifts are evident: a slight increase in throughput in the UV filters (?0.1%/year) and slight decreases in throughput in red and visible filters (?0.2%/year and 0.4%/year, respectively).
C. M. Gosmeyer, S. Baggett, S. Deustua, D.M. Hammer 10 Sep 2014 (pdf)

Document Archive

If you need assistance with anything related to WFC3, please see the Help page.