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The image viewer provides a graphical means for interacting with wide-field survey imaging data. The entire field may be displayed, or one may zoom and pan on any portion of the field. Currently, functions are provided for extracting science-grade image cutouts, and for viewing multi-band image data for a given object or region in the field. Other capabilities (e.g., catalog overlays and interaction with catalog data) are planned for the future.
Click here to open the experimental image viewer for the NDWFS Boötes field.
Clicking on the above link in a supported image browser (see comments below) should cause the image viewer to pop up in a new window resembling the image below. Click on the help (question mark) button in the upper right corner of the viewer to get help on how to use the image viewer.
The image viewer represents an experiment in what is possible in terms of interactive image display using standard Web browsers to access Web services provided by a remote archive server. Web technology is evolving rapidly and the image viewer may not work properly, or at all, with some browsers. It is known to work with Netscape 4 browsers on Unix-based platforms (e.g., Solaris, Linux, FreeBSD), and with Netscape 4 and Internet Explorer 5.5+ on Windows platforms. The newer version 6 browsers do not work at this time, and we are sure many older or lesser-known browsers will not work either. Better standards for Web browsers are coming however, and this situation should improve in the future.