Page History

Image ModifiedCount maps showing fewer counts in 10% mode than 100% mode.

Figure 1 -  The L-band count rate rate maps used to calculate the detector background of the L-band. [Left] The 100%-observation map and [Right]10%-observation map of the sky region where both 100% and 10% modes were used to observe.

Image ModifiedCount maps showing fewer counts in 10% mode than 100% mode.

Figure 2 -  The S-band count rate maps used to calculate the detector background of the S-band. [Left] The 100%- observation map and [Right] 10%-observation map of the sky region where both 100% and 10% modes were used to observe.

Image ModifiedScale factor versus wavelength. L: flat with upturn at end. S: U-shaped.

Figure 3 - The scale factor between the 100% and 10% shutter modes for (a) L-band and (b) S-band.

Image ModifiedL: background higher at high wavelengths. S: U-shaped.

Figure 4 - Detector background spectra for (left) L-band and (right) S-band. The upper and lower panels are shown in units of ct s⁻¹ Å⁻¹ and continuum units (CU = ct s⁻¹ Å⁻¹ cm⁻² sr⁻¹), respectively.