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Ah, excellent point.Guess it'd be a ~90min orbit to keep things as low as possible? (Dammit, why does the online calculator not want to deal with planetary-sized objects?)How so? We install radar and optical units on planes all the time. And I mean big radars and telescopes like SOFIA. And NASA puts radar and optical units on deep space probes.At some point, economies of scale actually happen. Especially when you only have ONE set of R&D funding and build them all in one go, not stopping and then have to restart and discover that some random part is no longer made and another supplier has gone out of business so you need to commission a replacement part run and re-vet a whole company...And if a company isn't trying to give you any economies of scale for a run of however many Dreadnought birds it takes to get ~15min max time from Starshield detection to the first Dreadnought getting images, well, time to prosecute for fraud and find a company that will.How so? There are 5-6 satellites within two orbital tracks of the point of interest. 2-3 of them are by definition within 30min of that object. Get a slant view of it NOW, then follow it with whatever satellite would be directly overhead at that time.
Ah, excellent point.
Guess it'd be a ~90min orbit to keep things as low as possible? (Dammit, why does the online calculator not want to deal with planetary-sized objects?)
How so? We install radar and optical units on planes all the time. And I mean big radars and telescopes like SOFIA. And NASA puts radar and optical units on deep space probes.
At some point, economies of scale actually happen. Especially when you only have ONE set of R&D funding and build them all in one go, not stopping and then have to restart and discover that some random part is no longer made and another supplier has gone out of business so you need to commission a replacement part run and re-vet a whole company...
And if a company isn't trying to give you any economies of scale for a run of however many Dreadnought birds it takes to get ~15min max time from Starshield detection to the first Dreadnought getting images, well, time to prosecute for fraud and find a company that will.
How so? There are 5-6 satellites within two orbital tracks of the point of interest. 2-3 of them are by definition within 30min of that object. Get a slant view of it NOW, then follow it with whatever satellite would be directly overhead at that time.
