Table 3
OSIRIS NAC and WAC filter characteristics and Vega observations.
| Filter | Central λ | FWHM | T exp | Mean count rate | +err | -err | Observations | Aperture |
| nm | nm | s | DN/s | % | % | px | ||
|
|
||||||||
| NAC-F15 | 267.5 | 53 | 0.400 | 2.571e+005 | 1.07 | 0.95 | 6 | 6−8 |
| NAC-F16 | 368.5 | 33 | 0.020−0.256 | 1.415e+006 | 0.59 | 0.75 | 30 | 8−10* |
| NAC-F22 | 648.5 | 83 | 0.020 | 7.172e+006 | 1.19 | 0.93 | 5 | 9−11 |
| NAC-F23 | 535.5 | 61 | 0.020 | 7.265e+006 | 0.80 | 0.69 | 5 | 10−12 |
| NAC-F24 | 481.0 | 72 | 0.020 | 9.369e+006 | 0.15 | 0.30 | 5 | 10−11 |
| NAC-F27 | 700.5 | 21 | 0.080 | 1.366e+006 | 1.29 | 0.91 | 5 | 9−10 |
| NAC-F28 | 742.0 | 62 | 0.025 | 3.447e+006 | 0.27 | 0.22 | 5 | 9−11 |
| NAC-F32 | 648.5 | 83 | 0.040 | 7.496e+006 | 0.41 | 0.83 | 5 | 13−14 |
| NAC-F33 | 535.5 | 61 | 0.040 | 7.581e+006 | 1.38 | 1.25 | 5 | 13−15 |
| NAC-F38 | 742.0 | 62 | 0.060 | 3.565e+006 | 1.10 | 0.61 | 4 | 13−14 |
| NAC-F41 | 880.0 | 62 | 0.100 | 9.906e+005 | 1.76 | 1.03 | 5 | 10−11 |
| NAC-F51 | 804.5 | 39 | 0.100 | 9.895e+005 | 1.16 | 0.79 | 5 | 9−10 |
| NAC-F58 | 790.5 | 23 | 1.000 | 7.631e+004 | 0.50 | 0.34 | 6 | 9−10 |
| NAC-F61 | 929.5 | 39 | 0.350 | 3.223e+005 | 0.71 | 1.15 | 5 | 13−15 |
| NAC-F71 | 987.0 | 38 | 0.800 | 1.092e+005 | 1.43 | 1.50 | 5 | 16−17 |
| NAC-F82 | 650.5 | 81 | 0.070−1.297 | 1.941e+005 | 0.58 | 0.76 | 32 | 9−11* |
| NAC-F83 | 535.5 | 59 | 0.500 | 2.033e+005 | 1.32 | 0.80 | 5 | 8−9 |
| NAC-F88 | 742.0 | 60 | 0.500 | 1.752e+005 | 1.37 | 1.43 | 5 | 9−10 |
| WAC-F12 | 627.0 | 154 | 0.010−0.150 | 1.169e+006 | 1.39 | 1.35 | 66 | 8−11* |
| WAC-F13 | 375.0 | 8 | 6.000 | 1.875e+004 | 1.23 | 0.85 | 8 | 11−12 |
| WAC-F14 | 387.0 | 4 | 6.000 | 1.588e+004 | 1.21 | 0.93 | 9 | 10−12 |
| WAC-F15 | 571.0 | 10 | 1.500 | 8.142e+004 | 0.73 | 0.53 | 9 | 9−11 |
| WAC-F16 | 589.5 | 3 | 3.500 | 3.030e+004 | 0.77 | 0.55 | 8 | 9−10 |
| WAC-F17 | 630.5 | 3 | 3.500 | 2.029e+004 | 0.85 | 0.97 | 9 | 7−9 |
| WAC-F18 | 611.5 | 9 | 0.233−1.900 | 8.288e+004 | 0.52 | 1.14 | 29 | 8−10* |
| WAC-F21 | 535.5 | 61 | 0.200 | 5.910e+005 | 0.68 | 0.28 | 9 | 9−11 |
| WAC-F31 | 245.5 | 13 | 15.000 | 5.308e+003 | 0.85 | 1.27 | 9 | 12−13 |
| WAC-F41 | 258.0 | 4 | 50.000 | 1.749e+003 | 1.05 | 0.84 | 8 | 12−14 |
| WAC-F51 | 295.0 | 10 | 25.000 | 3.060e+003 | 2.79 | 1.79 | 6 | 12−13 |
| WAC-F61 | 308.5 | 3 | 60.000 | 1.273e+003 | 1.77 | 1.85 | 8 | 11−13 |
| WAC-F71 | 325.5 | 9 | 20.000 | 4.376e+003 | 1.11 | 1.36 | 9 | 12−13 |
| WAC-F81 | 335.0 | 4 | 80.000 | 1.422e+003 | 0.86 | 0.69 | 8 | 11−12 |
Notes. This table refers to the observations of Vega during different mission phases, from the Mars swing-by in 2007 to the Lutetia fly-by in 2010. For each filter we report the central wavelength of the whole instrumental and filter passband in nm; the FWHM of each instrumental and filter passband in nm; the exposure time needed for the Vega observation, and for the four investigated filters, the linearity interval in seconds; the average count rate in DN s-1 for Vega observations; the positive and negative maximum deviation (expressed in %) with respect to the mean value; the total number of observations; the typical values of the apertures among all observations;
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