I had a similar issue with Seveneves recently. I had a strong science-based disagreement with the idea of Izzy always keeping its anchored asteroid facing into the oncoming atmosphere of LEO, which I was sure was impossible because it would be facing the rear as often as it would the front, because objects in space/thin atmospheres don't fly and don't maintain a constant relative orientation just because they're orbiting something. To me it seemed as dumb as a spacecraft that had to constantly have its engines firing behind it just to stay in orbit.
It wasn't until I shared this frustration with a smart friend, and he pointed out that it actually is possible if the space station has a rotational period equal to its orbital period, that I realized I was wrong. The author was indeed being smarter about the science of it than I was, and had done the research. And, forget just the future part of it; the ISS actually currently flies with a specific constant relative orientation through the atmosphere so as to minimize air resistance, using, you guessed it, a rotational period equal to its orbital period, plus occasional corrective actions from gyros and thrusters.
> the ISS actually currently flies with a specific constant relative orientation through the atmosphere so as to minimize air resistance, using, you guessed it, a rotational period equal to its orbital period, plus occasional corrective actions from gyros and thrusters.
And plus solar panels, which get realigned to minimize atmospheric drag when the Sun is behind the Earth.
Important to note that night glider mode is dependent on the rotation of the overall space station, so that you can set the orientation of the panels to be edge-on into the wind once and have the overall rotation keep that orientation indefinitely. Without the rotation, you'd have to continuously use the motors to adjust the panels, which would burn them out more quickly, use more power, and since they likely aren't freely rotating, would cause large spikes in air resistance once per orbit when you hit the limit of travel and have to do a large opposite rotation to maintain edge-on orientation.
Tidal influence can keep an object oriented along the local vertical and keep the same face towards the primary. See, for example, Phobos. Or most the moons in our solar system.
This is especially true if an orbiting object has attached to a tether. Gravity gradient stabilization can keep a tether aligned to the local vertical.
It wasn't until I shared this frustration with a smart friend, and he pointed out that it actually is possible if the space station has a rotational period equal to its orbital period, that I realized I was wrong. The author was indeed being smarter about the science of it than I was, and had done the research. And, forget just the future part of it; the ISS actually currently flies with a specific constant relative orientation through the atmosphere so as to minimize air resistance, using, you guessed it, a rotational period equal to its orbital period, plus occasional corrective actions from gyros and thrusters.