Articolo interessante di The Atlantic sui satelliti spia e LSST.
L’anno scorso il direttore del Vera Rubin ha “negoziato” con un’agenzia statunitense - non si sa quale - i protocolli di sicurezza da implementare nell’osservatorio per evitare che riveli la posizione dei satelliti militari.
“I didn’t even know which agency I was talking to,” he told me on a recent video call from his field office in Chile. Whoever it was would communicate with him only through intermediaries at the National Science Foundation. Ivezić didn’t even know whether one person or several people were on the other side of the exchange. All he knew was that they were very security-minded. Also, they seemed to know a great deal about astronomy.
La soluzione sarebbe questa: tutte le immagini raccolte verranno criptate prima che chiunque possa vederle, inviate da qualche parte in California, editate rimuovendo le tracce dei satelliti spia e rispedite indietro. Tre giorni e otto ore dopo le stesse immagini saranno rese disponibili senza editing.
A government agency—no one told him which one—would chip in $5 million for the construction of a dedicated network for moving sensitive data. Each time the telescope were to take one of its 30-second tile images of the sky, the file would be immediately encrypted, without anyone looking at it first, and then sent on to a secure facility in California.
Next, an automated system would compare the image with previous images of the same tile. It would cut out small “postage stamp” pictures of any new objects it finds, be they asteroids, exploding stars, or spy satellites. It would filter out the postage stamps that might depict secret U.S. assets and, one minute later, send all the rest, together with their coordinates, to an alert service available to astronomers worldwide. Three days and eight hours later, the entire tile image would be released to astronomers, untouched by black marker or any other technology of redaction.
Questo passaggio:
By then [cioè dopo i 3 giorni e 8 ore], the spy satellites would likely have gone somewhere else. They are elusive, after all. Their orbits are irregular, and they shift direction often.
… mi ha lasciato un po’ perplesso: mi chiedo se sia vero che i satelliti spia cambiano orbita così spesso.
Link su Archive:
When a Telescope Is a National-Security Risk