Wrong CD matrix WCS transformation coefficients : (2009-05-08)

The keywords affected are CD1_1, CD1_2, CD2_1, and CD2_2.
In what follows the keywords ESO.ADA.POSANG = A.
Previous to 2008-11-03 the incorrect formula used to write the above keywords
were:

WRONG: before 2008-11-03T00:05:00.000

CDELTA1 = -2.956388483633E-05
CDELTA2 = +2.956388483633E-05
CD1_1 = +CDELTA1*cosA
CD1_2 = -CDELTA2*sinA
CD2_1 = +CDELTA1*sinA
CD2_2 = +CDELTA2*cosA

The correct formulas are:

CORRECT: after 2008-11-03T00:05:00.000

CDELTA1 = -2.956388483633E-05
CDELTA2 = +2.956388483633E-05
CD1_1 = +CDELTA1*cosA
CD1_2 = -CDELTA1*sinA
CD2_1 = +CDELTA2*sinA
CD2_2 = +CDELTA2*cosA

Notice that 2.956388483633E-05 = 0.1064300/3600,
is the value stored in the keyword ESO.INS.PIXSCALE.

The CD keys have been repaired for the data in the archive but frames with HIERARCH ESO ADA POSANG not 0 and not 180, -180 being delivered before the fix might be affected.

How to correct ? Change the sign of CD1_2 and CD2_1 in all four fits extensions of the HAWKI frame.