Quiz of the Fortnight—December 15

1) PROBA-3 mission

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1. aims to demonstrate the advanced technology of precision formation flying, with two mini-satellites—the Coronagraph Spacecraft (CSC) and the Occulter Spacecraft (OSC)—flying in tandem.
2. will measure electron fluxes, through its 3D Energetic Electron Spectrometer, as it passes through Earth’s radiation belts.
3. is NASA’s—and the world’s—first precision formation flying mission. 
4. has been launched by ISRO’s Polar Satellite Launch Vehicle (PSLV)-C59 rocket in the first week of December 2024.

How many statements given above are correct?