Re: Hoped for more
>Pardon my ignorance in the matter, but doesn't planet hunting come under "full sky surveys of variable objects", as they have to scour the sky looking for variations in a stars brightness/position?
Although these satellites are going to eventually cover the sky they are only a problem when they are lit up, a dark satellite crossing your detector at midnight for a fraction of second doesn't matter.
They are only visible when they are in sunlight but the sky is dark, which is only true for a short time after sunset/before sunrise, the lower the orbit the shorter this time.
Any planet survey looking for something faint (and all the bright easy stuff has been done) has to wait for it to be really dark. They also need the valuable few nights a month when there is no moon - called "dark time" in the business. Most planet hunting missions are now done from space because you need to observe the same object in ideal conditions for a long time.
Whole sky surveys suffer most because a wide field of view means they are going to see more lit up satellites if there are any around. The large pixel scale means a single bright track destroys more data and they need to maximise as much observing time as possible so can observe into twilight much further than deep+dark targets