Thanks, Steve... I will look this data, which is good in itself, and will provide me some details, and see if I can find a merging... Vince -- *============================================================* *Vincent E. Summers, Chemist E-Mail: vsummers@nrao.edu * *National Radio Astronomy Observatory Phone: (804)-296-0210 * *2015 Ivy Road FAX: (804)-296-0324 * *Charlottesville, VA 22903 http://www.cv.nrao.edu/~vsummers * *============================================================*