Turns out that that message could also be a notification you signed up for that the International Space Station is passing overhead because you wanted to go outside and see if you could see it.
那些信息也可能是公告提醒， 比如你想目睹国际空间站略过你上空的情形 而登记了这个信息。 希望可以收到提醒，尝试目睹它。