The 600-plus-kilogram satellite will circle the Earth once every 90 minutes after it enters a sun-synchronous orbit at an altitude of 500 kilometers.

墨子号质量在600千克以上，进入距地面高度500公里的太阳同步轨道后，每90分钟环绕地球一圈。

youdao

Unless someone with lots of money wants to fund the project, I can imagine no way for hackers to orbit a sun-synchronous satellite and covering the world would require several to offer low-cost Internet to the censored masses.

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