J Esteban Sferco

J Esteban Sferco

19p

3 comments posted · 1 followers · following 0

208 weeks ago @ The Space Review: essa... - The Space Review: Lati... · 0 replies · +5 points

John,
I understand that the whole purpose of a public comment system is to provide a space where readers and authors can share comments (from criticism to applause) in public view - of course always with civility and respect. The intent, I believe, is to foster a respectful debate and sharing of ideas.
It seems you agree with me, since you did not contact me in private before publicly suggesting that I somewhat lacked courtesy in posting my comment.
So, no, I did not contact the author in private before commenting here.
I believe any answer or reply from the author (or anyone else) should also be posted here, to help enlighten all readers on any possible rationale behind the omissions I noticed.

208 weeks ago @ The Space Review: essa... - The Space Review: Lati... · 2 replies · +7 points

Jeanette,
From my point of view, the problem with this article is that, while obviously not been able to cover ALL developments, it fails to event notice THE SINGLE main accomplishment in the region in the 2012/2017 period (the ARSAT-1 and 2 satellites).
I believe that designing, building, integrating, testing and operating from launch through station acquisition a GEO communications platform is a major accomplishment in the region, not in any way "a small test or initiative".
To not give any notice of this project, while at the same time highlighting yet another closed-package acquisition of a GEO satellite (as has been done in the region several times since the 1990s at least) is rather surprising.
This single omission puts in question the accuracy of the article as a whole.

208 weeks ago @ The Space Review: essa... - The Space Review: Lati... · 1 reply · +7 points

(my apologies if this is a repeat comment... apparently I am not able to post it in a single try)
I need to remark that this article fails to mention important achievements from the space sector in Argentina.

For sake of completeness, some of the most relevant space projects and milestones completed in the 2012/2017 period in Argentina not mentioned in the article are:

- ARSAT 1 and 2 commercial geostationary communication satellites:
Designed, built, integrated and tested by local main contractor INVAP at Bariloche, Argentina, for the national telecommunications company ARSAT. Launched by Arianespace, ARSAT-1 and 2 successfully achieved GEO orbit and have been in uninterrupted commercial operation since 2014 and 2015, respectively. Their combined commercial service area covers from Canada/USA to the southern tip of South America in Ku band, as well as C band coverage over South and Central America. The expected in-orbit life is over 15 years.
All satellite operations, including transfer orbit and in orbit commissioning as well as nominal GEO operations are performed by a local engineering team from ARSAT headquarters near Buenos Aires.
http://www.invap.com.ar/en/aerospace-and-governme... http://www.arsat.com.ar/satelites/

- Small Earth observation satellites, Satellogic:
Designed by Satellogic from its headquarters in Buenos Aires, including integration and testing from this facility as well as installations in Uruguay.

Development satellites:
CubeBug-1 Capitán Beto, April 2013, Long March 2,
CubeBug-2 Manolito: November 2013, Proton,
BugSat 1: June 2014, Dnepr14‚Äč.
ÑuSat series in commercial service constellation Aleph-1:
Fresco and Batata, both launched in may 2016, Long March 4B,
Milanesat, june 2017.
https://www.satellogic.com/ https://es.wikipedia.org/wiki/Satellogic

- Small satellite launcher Tronador II, CONAE
CONAE and VENG completed with varying success a couple test launches for this small satellite launcher project:
VEX1A, February 2014,
VEX1B, August 2014.

I am at lost as to why would the author fail to mention any of these important regional milestones. Most shocking for me is not giving any notice of the ARSAT-1/2 communications satellites (the first ever designed, built, integrated, tested and operated from the region) while giving so much attention to the acquisition of a closed turn-key Chinese communication satellite by Bolivia. The same goes in the Earth observation area for the highlighting of Peru acquiring a closed satellite from France while completely ignoring Satellogic and its regionally developed satellites.

Taking only these omissions into account, one can only wonder what other significant achievements from other players in the region in the 2012/2017 period might be missing from this article.