1. Institut für Energie- und Klimaforschung - Stratosphäre (IEK-7); Forschungszentrum Jülich GmbH; Jülich Germany
2. Center for Limb Atmospheric Sounding; University of Colorado Boulder; Boulder Colorado USA
3. National Center for Atmospheric Research; Boulder Colorado USA
4. Atmospheric Physics, Department of Physics; University of Oxford; Oxford UK
5. NASA Langley Research Center; Hampton Virginia USA
6. Center for Atmospheric Sciences; Hampton University; Hampton Virginia USA