Table 4
Absolute flux calibration of the OSIRIS NAC and WAC filters.
| Filter | Central λ | FWHM | Abscal factor | +err | -err | Abscal reflectance factor | +err | -err |
| nm | nm | DN s-1·(Wm-2 nm-1 sr-1)-1 | % | % | DN s-1 | % | % | |
|
|
||||||||
| NAC F15 | 267.5 | 53.0 | 2.428e+006 | 16.7 | 16.7 | 1.434e+005 | 15.3 | 15.3 |
| NAC F16 | 368.5 | 33.0 | 1.308e+007 | 5.6 | 5.7 | 4.566e+006 | 5.6 | 5.7 |
| NAC F21 | 659.0 | 492.0 | 6.190e+008 | 3.3 | 3.2 | 2.830e+008 | 1.7 | 1.7 |
| NAC F22 | 648.5 | 83.0 | 1.182e+008 | 2.5 | 2.4 | 5.892e+007 | 2.5 | 2.4 |
| NAC F23 | 535.5 | 61.0 | 6.677e+007 | 2.4 | 2.5 | 4.01e+007 | 2.4 | 2.5 |
| NAC F24 | 481.0 | 72.0 | 6.421e+007 | 2.7 | 2.5 | 4.086e+007 | 2.7 | 2.5 |
| NAC F26 | 368.5 | 33.0 | 1.232e+007 | 5.6 | 5.7 | 4.307e+006 | 5.6 | 5.7 |
| NAC F27 | 700.5 | 21.0 | 2.824e+007 | 2.4 | 2.4 | 1.270e+007 | 2.4 | 2.4 |
| NAC F28 | 742.0 | 62.0 | 8.544e+007 | 2.3 | 2.3 | 3.495e+007 | 2.3 | 2.3 |
| NAC F31 | 653.5 | 479.0 | 6.297e+008 | 3.2 | 3.2 | 2.907e+008 | 3.9 | 3.9 |
| NAC F32 | 648.5 | 83.0 | 1.235e+008 | 2.5 | 2.4 | 6.156e+007 | 2.5 | 2.4 |
| NAC F33 | 535.5 | 61.0 | 6.959e+007 | 2.5 | 2.6 | 4.169e+007 | 2.5 | 2.6 |
| NAC F34 | 481.0 | 72.0 | 6.741e+007 | 2.6 | 2.5 | 4.290e+007 | 2.6 | 2.5 |
| NAC F35 | 289.5 | 13.0 | 3.157e+005 | 14.9 | 14.9 | 3.980e+004 | 14.5 | 14.5 |
| NAC F36 | 371.5 | 27.0 | 1.071e+007 | 5.6 | 5.7 | 3.765e+006 | 5.5 | 5.6 |
| NAC F37 | 700.5 | 21.0 | 2.942e+007 | 2.4 | 2.4 | 1.323e+007 | 2.4 | 2.4 |
| NAC F38 | 742.0 | 62.0 | 8.842e+007 | 2.3 | 2.3 | 3.618e+007 | 2.3 | 2.3 |
| NAC F41 | 880.0 | 62.0 | 4.024e+007 | 3.4 | 3.2 | 1.209e+007 | 3.4 | 3.2 |
| NAC F51 | 804.5 | 39.0 | 3.159e+007 | 2.7 | 2.5 | 1.141e+007 | 2.7 | 2.5 |
| NAC F58 | 790.5 | 23.0 | 2.326e+006 | 2.9 | 2.5 | 8.626e+005 | 2.9 | 2.5 |
| NAC F61 | 929.5 | 39.0 | 1.444e+007 | 4.3 | 4.3 | 3.894e+006 | 4.3 | 4.3 |
| NAC F71 | 987.0 | 38.0 | 5.763e+006 | 10.8 | 10.7 | 1.384e+006 | 10.7 | 10.6 |
| NAC F81 | 722.0 | 206.0 | 1.937e+007 | 3.1 | 3.1 | 8.938e+006 | 3.8 | 3.8 |
| NAC F82 | 650.5 | 81.0 | 3.246e+006 | 2.7 | 2.4 | 1.607e+006 | 2.7 | 2.4 |
| NAC F83 | 535.5 | 59.0 | 1.869e+006 | 2.5 | 2.4 | 1.120e+006 | 2.5 | 2.4 |
| NAC F84 | 481.0 | 72.0 | 1.991e+006 | 2.7 | 2.5 | 1.270e+006 | 2.7 | 2.5 |
| NAC F86 | 378.0 | 18.0 | 4.980e+004 | 5.1 | 5.2 | 1.819e+004 | 5.0 | 5.1 |
| NAC F87 | 700.5 | 21.0 | 1.313e+006 | 2.4 | 2.4 | 5.891e+005 | 2.4 | 2.4 |
| NAC F88 | 742.0 | 60.0 | 4.286e+006 | 2.7 | 2.8 | 1.756e+006 | 2.7 | 2.8 |
| WAC F12 | 627.0 | 154.0 | 4.810e+008 | 2.5 | 2.6 | 2.52e+008 | 2.5 | 2.6 |
| WAC F13 | 375.0 | 8.0 | 4.684e+006 | 4.8 | 4.8 | 1.774e+006 | 4.8 | 4.8 |
| WAC F14 | 387.0 | 4.0 | 2.538e+006 | 3.8 | 3.9 | 8.826e+005 | 3.8 | 3.8 |
| WAC F15 | 571.0 | 10.0 | 2.557e+007 | 2.3 | 2.1 | 1.494e+007 | 2.3 | 2.1 |
| WAC F16 | 589.5 | 3.0 | 1.045e+007 | 2.1 | 2.1 | 5.823e+006 | 2.1 | 2.1 |
| WAC F17 | 630.5 | 3.0 | 8.594e+006 | 2.1 | 2.3 | 4.435e+006 | 2.1 | 2.3 |
| WAC F18 | 611.5 | 9.0 | 3.196e+007 | 2.1 | 2.2 | 1.724e+007 | 2.1 | 2.2 |
| WAC F21 | 535.5 | 61.0 | 1.523e+008 | 2.3 | 2.1 | 9.131e+007 | 2.3 | 2.1 |
| WAC F31 | 245.5 | 13.0 | 1.370e+006 | 23.6 | 23.5 | 3.449e+004 | 20.9 | 20.7 |
| WAC F41 | 258.0 | 4.0 | 4.686e+005 | 13.9 | 13.8 | 1.952e+004 | 12.9 | 12.8 |
| WAC F51 | 295.0 | 10.0 | 8.483e+005 | 11.8 | 11.7 | 1.443e+005 | 11.7 | 11.6 |
| WAC F61 | 308.5 | 3.0 | 3.592e+005 | 9.8 | 9.7 | 7.412e+004 | 9.6 | 9.5 |
| WAC F71 | 325.5 | 9.0 | 1.312e+006 | 8.6 | 8.6 | 3.690e+005 | 8.6 | 8.5 |
| WAC F81 | 335.0 | 4.0 | 4.447e+005 | 7.7 | 7.6 | 1.357e+005 | 7.7 | 7.6 |
Notes. In this table we report the absolute flux and reflectance calibration of all OSIRIS NAC and WAC filter combinations, obtained using the whole data set of Vega and 16 Cyg A+B observations during the 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 abscal factor needed to convert the image count rate into spectral radiance; its positive and negative percentage error; the abscal reflectance factor needed to convert the image count rate into reflectance; its positive and negative percentage error.
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