Launch date:

Reused booster from the classified NROL-76 mission in May 2017. Following a successful experimental ocean landing that used three engines, the booster unexpectedly remained intact; Elon Musk stated in a tweet that SpaceX will attempt to tow the booster to shore.
Media
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"webcast": "https://www.youtube.com/watch?v=ScYUA51-POQ",
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"wikipedia": "https://en.wikipedia.org/wiki/List_of_SES_satellites#SES_Fleet"
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