Figure 2 shows a typical image using a multi-slit. The exposure time is 3000 seconds with the Cryogenic Camera, grism 650, and the Ford-Loral 800x1200 CCD. Red is on the left. At least five object spectra are visible superimposed on the night sky spectrum. Figure 3 shows the typical night sky spectrum from a single row on the CCD centered in the topmost slitlet of Figure 2. The bias level is 410 ADU.
Figure 2: Typical Multi-Slit Image
Figure 3: The Night Sky Spectrum