Recently, the word "double" has been doubled. In meaning, that is. It has been applied to two different phenomena. 1) Multiple satellites: Two different satellites which glint at the same time. 2) Multiple glints: A single satellite which glints at different times during a single pass. There is a third phenomenon which I observed very recently, perhaps a 1a) phenomenon: Two different satellites in the same field of view at the same time which glint at different times without any overlap. I think careful observers should have the vocabulary to distinguish these. I suggest that double should be reserved for phenomena of type 2), where only a single satellite is glinting. Triple, quadruple, etc., follow naturally. I would suggest that the term "paired" be used for type 1), but then what could be used to describe the early post-launch OBS where more than 2 can be glinting at the same time? Tripletted? Can someone suggest something better? Any suggestions? Cheers. Walter Nissen dk058@cleveland.freenet.edu -81.8637, 41.3735, 256m elevation