Comments on: Objects in Space: “Herschel” the largest telescope ever flown. http://www.odbms.org/blog/2011/03/objects-in-space-herschel-the-largest-telescope-ever-flown/ Trends and Information on New Data Management Technologies, Innovation. Wed, 17 Apr 2013 21:47:18 +0000 hourly 1 http://wordpress.org/?v=3.1.1 By: M. Zingler http://www.odbms.org/blog/2011/03/objects-in-space-herschel-the-largest-telescope-ever-flown/comment-page-1/#comment-7012 M. Zingler Thu, 05 May 2011 11:18:42 +0000 http://www.odbms.org/blog/?p=674#comment-7012 Dear Roberto, this is a very interesting and nice article. At the time when I was managing the development of the MMIS (Multi Mission Inventory System) in 1997, my team was already that early taking the decision to deploy a system based on an ODB (Objectstore). This supported the storage and search in Earth Observation metadata very similar to the one for Herschel. So the history in ESA on using ODB is older. MMIS was the first ODB system ever in the Agency and I used the opportunity to support OMG at the time. best regards, Matthias Zingler Galileo Project Dear Roberto,
this is a very interesting and nice article.
At the time when I was managing the development of the MMIS (Multi Mission Inventory System) in 1997, my team was already that early taking the decision to deploy a system based on an ODB (Objectstore). This supported the storage and search in Earth Observation metadata very similar to the one for Herschel. So the history in ESA on using ODB is older. MMIS was the first ODB system ever in the Agency and I used the opportunity to support OMG at the time.

best regards,
Matthias Zingler
Galileo Project

]]> By: Tilmann Zäschke http://www.odbms.org/blog/2011/03/objects-in-space-herschel-the-largest-telescope-ever-flown/comment-page-1/#comment-6972 Tilmann Zäschke Thu, 24 Mar 2011 14:17:50 +0000 http://www.odbms.org/blog/?p=674#comment-6972 A very interesting read. Until 2009, I have been working on this project myself. It seems some things have changed since I left, for example the estimated size of the Versant database used to be 10-15TB rather than 2TB (see also my user report 33/10 (http://www.odbms.org/download/33_Z%C3%A4schkeTilmann.pdf). I'm just guessing, but I suppose the decision was made to not store decompressed satellite data in the database, but rather decompress it on the fly. This is independent of the external storage of products as described above. A very interesting read. Until 2009, I have been working on this project myself. It seems some things have changed since I left, for example the estimated size of the Versant database used to be 10-15TB rather than 2TB (see also my user report 33/10 (http://www.odbms.org/download/33_Z%C3%A4schkeTilmann.pdf). I’m just guessing, but I suppose the decision was made to not store decompressed satellite data in the database, but rather decompress it on the fly. This is independent of the external storage of products as described above.

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