The National Optical Astronomy Observatory (NOAO) provided four nights of Director's Discretionary time for an R-band survey with the MOSAIC camera on the Kitt Peak 4m telescope. The data were obtained in May 2000. We measure a 5-sigma sensitivity in a 2 arcsecond aperture of R=25.5. Approximately 30 pointings with MOSAIC were obtained covering the entire extragalactic First Look Survey region. The MOSAIC pointings are covering the main survey field centered at 1718+5930 and outlined in Figure 1 (below). In addition, pointings in the ELAIS N1 field were also obtained as this was originally planned to be part of the extragalactic FLS. This region is now part of the SWIRE Legacy program. The pointings obtained are outlined in Figure 2 (see below).

Figure 1

The MOSAIC outlines of the pointings are shown with solid lines. The Spitzer IRAC and MIPS observation regions are shown with dashed lines. The numbering scheme for the pointings is arbitrary. The central positions for each are included on the data release page. This figure is adapted from Fadda et. al., 2004. Click for postscript file.

Figure 2

The MOSAIC outlines of the pointings are shown with solid lines. The dashed line shows the area observed with ISOCAM. The gray square shows the Spitzer MIPS/IRAC test field and the dash-dot line shows the planned SWIRE region. The numbering scheme for the MOSAIC pointings is arbitrary. The central positions for each are included on the data release page. This figure is adapted from Fadda et. al., 2004. Click for postscript file.

Retrieve Data
Images and catalogs can be retrieved from:

• IRSA Infrared Science Archive
• NOAO Science Archive

Notes

If you publish results based on the FLS R-band survey, please
use this paper reference and acknowledgment.

• The Spitzer Space Telescope First-Look Survey. II. KPNO MOSAIC-1 R-band Images and Source Catalogs, Fadda, D., et al., 2004, AJ, 128, 1.

• The National Optical Astronomy Observatory (NOAO) is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation.

We thank the NOAO and KPNO staff that support the KPNO Mayall 4m Telescope, the MOSAIC-1 imager, and IRAF, the software used for the processing of the images. The National Optical Astronomy Observatory (NOAO) is the national center for ground-based nighttime astronomy in the United States and is operated by the Association of Universities for Research in Astronomy (AURA), Inc. under cooperative agreement with the National Science Foundation.