Version 9 (modified by stgo, 5 years ago) (diff)

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Hyperspectral instrument boresight information

Boresight calculation

Every time the hyperspectral instruments are fitted to the aircraft they need to be boresighted. This is the process in which the off-nadir pointing direction is calculated, in terms of the 3 angles roll, pich and heading. This is currently done as an iterative procedure processing a selection of flight lines taken over the calibration site using different boresight parameters. The flight lines will be from a selection of North-South, East-West and diagonal flight paths. When the flight lines match up well enough, using the same set of boresight values, the boresight values are noted and used in all processing up until the instruments are removed again.

Eagle Boresights

Note these are summaries. For information on missing days please refer here.

Year Time period Pitch (degrees) Roll (degrees) Heading (degrees)
2013 Day 308 only 0.14 -0.41 0.22
2013 Day 192 onwards 0.12 -0.35 0.5
2013 To day 192 0.15 -0.29 0.55
2012 206 onwards -0.3 0.3 0.13
2012 To day 206 -0.28 0.22 0.0
2011 Full year -0.28 0.16 0.38
2010 Full year -0.18 0.27 0.28
2009 268 onwards -0.32 -0.52 0.26
2009 252 -> 268 -0.31 -0.66 0.35
2009 131 -> 251 -0.245 -0.77 0.269
2009 To day 130 Variable
2008 116 onwards -0.2 -0.45 0.5
2008 To day 043 -0.25 -0.45 0.6
2008 Ethiopia campaign -0.2 -0.4 1.1
2007 166 onwards 0.23 -0.28 -1.4
2007 To day 130 -0.25 -0.5 -1.2
2006 Full year 0.1 -0.3 -1.25

Hawk Boresights

Note these are summaries. For information on missing days please refer here.

Year Time period Pitch (degrees) Roll (degrees) Heading (degrees)
2013 Day 192 onwards 0.1 -0.87 0.41
2013 Day 192 onwards 0.1 -0.85 0.5
2013 To day 192 0.16 -0.88 0.35
2012 206 onwards -0.313 0.3 0.18
2012 To day 206 -0.31 0.28 0.0
2011 Full year -0.27 0.27 0.5
2010 Full year -0.26 0.28 0.5
2009 268 onwards 0.23 0.27 0.0
2009 252 -> 268 -0.25 0.25 0.0
2009 131 -> 251 -0.307 -0.203 -0.04
2009 To day 130 Variable
2008 116 onwards -0.1 0.2 0.8
2008 To day 043 -0.2 0.2 1.0
2008 Ethiopia campaign -0.2 0.4 1.9
2007 166 onwards 0.0 0.35 -1.4
2007 To day 130 -0.3 0.1 -1.4
2006 Full year -0.1 0.3 -1.25

ATM Boresights

Note these are summaries. For information on missing days please refer here.

Year Time period Pitch (degrees) Roll (degrees) Heading (degrees)
2008 116 onwards 0.2 -2.1 0.8
2007 166 onwards 0.0 -2.22 -0.75
2007 To day 130 0.08 -2.3 -0.75
2006 Full year -0.1 -1.95 -0.4
2005 Unknown -0.3 -2.00 -0.2

CASI Boresights

Note these are summaries. For information on missing days please refer here.

Year Time period Pitch (degrees) Roll (degrees) Heading (degrees)
2007 166 onwards -0.85 -0.08 -0.4
2007 To day 130 Not mounted
2006 Full year -0.7 0.2 -0.2