Which facility upgrade unlocks maneuver nodes in KSP

Which facility upgrade unlocks maneuver nodes in career mode in KSP?

The beta announcement hints that maneuver nodes are now unlocked with a facility upgrade:

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    The building in question
    will upgrade visually, both from the outside and the inside. More
    gameplay mechanics will be also be unlocked as the player progresses
    through the different building tiers. For example, allowing EVAs in
    space or being able to use maneuver nodes in the map view.

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  • How to intercept an asteroid in Kerbal Space Program?
  • How do I do science?
  • Editing Kerbal Space Program save files for KSO
  • 4 Solutions collect form web for “Which facility upgrade unlocks maneuver nodes in KSP”

    You have to upgrade 2 buildings: the tracking station (to level 2) and the mission control (to level 2).

    Just one by itself is not enough. If you upgrade mission control without the tracking station, you’ll see a message telling you that “flight planning” is not available until the tracking station is upgraded.

    As of 0.90 maneuver nodes are unlocked by buying the first upgrade to the Tracking Station.

    Mission Control (the place where you get contracts) the upgrade is called “flight planning”. The tracking station lets you unlock conics which I think are simply the predictions of intercepting celestial bodies, etc. I unlocked the tracking station first, which gave me the blue/purple lines etc. but no ability to place maneuver nodes.

    You have to unlock both the second level Tracking Station and the second level Mission Control. You are looking for the “Flight Planning” upgrade.

    Note that it is the second level of each building, not the third. Neither building needs the third level upgrade before maneuver nodes are available.

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