Opened 15 years ago
Closed 14 years ago
#232 closed task (fixed)
Validate 2009 calibration
Reported by: | mark1 | Owned by: | mggr |
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Priority: | immediate | Milestone: | |
Component: | ARSF | Keywords: | |
Cc: | mggr | Other processors: |
Description (last modified by mggr)
Attachments (3)
Change History (7)
Changed 15 years ago by mark1
comment:1 Changed 15 years ago by mggr
- Description modified (diff)
comment:2 Changed 15 years ago by mggr
Comparison of the 2007 vs 2009 calibrations shows significant changes at some wavelengths. As we currently have no independent verification, we can only assume these changes are correct..
Mark: could you add the gnuplot images you made to this ticket?
Changed 15 years ago by mark1
Percentage difference of data processed with 2009 calibration to 2007 calibration - Eagle
Changed 15 years ago by mark1
Percentage difference of data processed with 2009 calibration to 2007 calibration - Hawk
comment:3 Changed 15 years ago by mark1
comment:4 Changed 14 years ago by mggr
- Resolution set to fixed
- Status changed from new to closed
We now have internal calibrations and the means to test them. The Specim wavelengths appear correct to within subpixel error. Radiance multipliers are within 5%, which is pretty fair given our measurement error and uncertainty about Specim's setup.
The overlap regions will still have poor calibration as they are very low on signal to noise ratio. We can now quantify this.
Eagle/Hawk spectra using 2009 calibration over water