<span style=" font-size:10pt;font-family:sans-serif">Hi Peter,</span>
<br><span style=" font-size:10pt;font-family:sans-serif">
okay I'm going to be responsible
for coordinating the updates for the ESA entries in the SANA registry.
Is there any documentation on the underlying database design ? As far as
I can figure out the main relations (ignoring Operator and Owner etc.)
for the Sites Service and Apertures registry is with the Aperture and Aperture
Link registry, similarly for the Spacecraft ID the main relation would
appear to be with Spacecraft.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Also with respect
to the Contact registry for the ESA entries at least there are names that
go way back in history and are long retired. Can these be removed from
the registry or are they required to maintain consistency ? If they are
required for consistency what would be the appropriate status to use to
indicate that these contacts are no longer valid ?</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Couple of other
points that have come up during our initial discussions - </span>
<br>
<ol>
<li value=1><span style=" font-size:10pt;font-family:sans-serif">On the
spacecraft registry there is an alias field. This would also be useful
on the Aperture Registry - could be used to handle things like DSN giving
DSN station identifiers to ESA stations etc.</span>
<li value=2><span style=" font-size:10pt;font-family:sans-serif">One of
the guys I'm working with (John Reynolds) is also involved with the IOAG
Spacecraft Emergency W/G. He's told me that IOAG are considering setting
up their own registry for use in that context as they've currently not
found the CCSDS SSA very useful (not to mention out of date). We've had
a quick look at the information contained in the various SSA related registries
and think that pretty much all of the needed data is there (or at least
will be once the registry is updated). Possibly what would be needed is
some sort of query that pulls this together into a more useful format ?</span></ol><span style=" font-size:10pt;font-family:sans-serif"><br>
Once we've got a bit further with reviewing and updating the data I'll
maybe organise a WebEx with you (and possibly the SANA operator) to disuss
any changes (such as the above 2) that we think would be useful.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Cheers for now,</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Colin</span>
<br><span style=" font-size:10pt;font-family:sans-serif"><br>
---------------------------------------------------------------------------------------------------------<br>
Dr. Colin R. Haddow,<br>
HSO-GI, European Space Agency,<br>
European Space Operations Centre,<br>
Robert-Bosch-Str 5,<br>
64293 Darmstadt,<br>
Germany.<br>
<br>
Phone; +49 6151 90 2896<br>
Fax; +49 6151 90 3010<br>
E-Mail; colin.haddow@esa.int<br>
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