Just to drag it off-topic again for a moment, do you have to/will you want to take retirement when it arrives, SG?<br /><br />I imagine there is probably a rule which compels you to do so and, with your recent health troubles, you may be looking forward to taking it.<br /><br />However, I'm sure most of us regulars around here will understand and appreciate the great passion you have had for the space program, and I'll bet USA/NASA will be sorry to lose someone of your immense experience and expertise. <div class="Discussion_UserSignature"> <p><em><font size="2" color="#ff0000">Who is this superhero? Henry, the mild-mannered janitor ... could be!</font></em></p><p><em><font size="2">-------------------------------------------------------------------------------------------</font></em></p><p><font size="5">Bring Back The Black!</font></p> </div>