From wilhelm@linax1.mpae.gwdg.de Tue Nov 18 16:44:16 2003
Date: Tue, 27 Apr 1999 16:36:11 +0200
From: wilhelm@linax1.mpae.gwdg.de
Reply-To: sumer-soft@esa.nascom.nasa.gov
To: sumer-soft@esa.nascom.nasa.gov
Subject: SUMER-SOFT: SUMER Radiometric Calibration

Subject: SUMER Radiometric Calibration

Dear colleagues,

we (Udo Schuehle (Detector B) , Philippe Lemaire (Stars) and I (Detector A))
have worked for some time on an update of the SUMER radiometric calibration.
It is now available on SUMOP1. The changes are, in general, minor, but
it might be a good idea to consider your specific calibration tasks in detail,
in particular, if you had used the long-wavelength range or the 1st/2nd order
overlap region. At very short wavelengths, we are still a little unhappy
with the extrapolation to Ne VII (465 A). In order to provide you with the
tools for any comparisons, a new feature has been implemented in
RADIOMETRY.PRO. By providing an epoch keyword, you can recall the old
calibration values. See RADIOMETRY.pro for further explanations.
Should there be any difficulties, please let me know.
  
With best regards,
Klaus Wilhelm