It is known that during the side and Angle adjustment of networks, it is necessary to do the variance components estimation to make the weights of observations rational.

众所周知，边角网平差时应进行方差分量估计，以使观测权趋于合理。

youdao

Many planets in similar orbits are "tidally locked", meaning the same side is always facing the host star, but further observations will be required to examine the planet further, finding out for example if it has an atmosphere.

BBC: Exoplanet around Alpha Centauri is nearest-ever