Comment Re:Starlink (Score 4, Interesting) 10
With 50 gigapixels you can image the 20,000 square mile Starlink satellite footrprint with 1 meter resolution
Without quality optics, you'll just end up with 50 gigapixels of blur. More pixels doesn't necessarily mean you can resolve finer features.
For comparison, Planet Labs is deploying its Pelican telescope constellation. These are the size of a small refrigerator (0.6 x 0.6 x 1.0 m), and roughly half of that is devoted to the optics. Planet Labs advertise 30-cm resolution with that platform, but the first prototypes only went up a few months ago - I don't know if real data is available yet.
Another comparison is "What If You Pointed Hubble at Earth"? (Since Hubble is more or less a spy satellite, modestly redesigned for astronomy.) The diffraction limit puts the resolution at 0.2 m - not quite enough for license plates. But atmospheric effects alone would worsen that significantly. Then there's motion blur - the telescope has to slew to keep the object centered in the field of view. Even if it did so perfectly, you're still viewing the object from different angles during the camera exposure.
A telescope in Pelican's form factor (0.5 m, cubed) doesn't jibe well with the flat-pack configuration of Starlink (about 0.2 m thick), let alone a Hubble.
But that's not to say that NRO hasn't asked SpaceX (and contractors) for their own design. There's a reason why the SpaceX camera feed cuts out before fairing separation.