Opened 17 years ago

Closed 17 years ago

#105 closed task (invalid)

Hawk FODIS seems uncalibrated

Reported by: benj Owned by: benj
Priority: alpha 5 Milestone:
Component: Data collection Keywords: Hawk FODIS
Cc: mggr Other processors:

Description (last modified by benj)

Inspection of the FODIS output for Hawk (level 1b) suggests that it is uncalibrated (or otherwise incorrect). Spectrum generated (taken from Nigg Bay line 3) is:


(X-axis is band number for Hawk, not wavelength). Graph shape should match solar spectrum (see eg http://fsf.nerc.ac.uk/img/g37_grph.gif) and doesn't.

Attachments (1)

hawkfodis.png​ (8.1 KB) - added by benj 17 years ago.

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Change History (4)

Changed 17 years ago by benj

comment:1 Changed 17 years ago by benj

  • Description modified (diff)
  • Owner changed from gaew to benj

comment:2 Changed 17 years ago by benj

  • Description modified (diff)

comment:3 Changed 17 years ago by mggr

  • Resolution set to invalid
  • Status changed from new to closed

Looks like Caligeo has been evil and fooled us. The Hawk doesn't have a FODIS, therefore it must have processed from the image itself. However, Eagle does have a FODIS with output matching the above, but it wasn't plugged in during the Nigg Bay acquisition, so we're just seeing the inside of the plane (+straylight) here.

Closing this ticket and will open another FODIS one with imagery from the 031/2008 flight with FODIS.

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