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We have further followed the evolution of the orbital and physical propertiesof G2, the object currently falling toward the massive black hole in theGalactic Center on a near-radial orbit. New, very sensitive data were taken inApril 2013 with NACO and SINFONI at the ESO VLT . The 'head' of G2 continues tobe stretched ever further along the orbit in position-velocity space. Afraction of its emission appears to be already emerging on the blue-shiftedside of the orbit, past pericenter approach. Ionized gas in the head is nowstretched over more than 15,000 Schwarzschild radii RS around the pericenter ofthe orbit, at ~ 2000 RS ~ 20 light hours from the black hole. The pericenterpassage of G2 will be a process stretching over a period of at least one year.The Brackett-{\gamma} luminosity of the head has been constant over the past 9years, to within +- 25%, as have the line ratios Brackett-{\gamma} /Paschen-{\alpha} and Brackett-{\gamma} / Helium-I. We do not see anysignificant evidence for deviations of G2's dynamical evolution, due tohydrodynamical interactions with the hot gas around the black hole, from aballistic orbit of an initially compact cloud with moderate velocitydispersion. The constant luminosity and the increasingly stretched appearanceof the head of G2 in the position-velocity plane, without a central peak, isnot consistent with several proposed models with continuous gas release from aninitially bound zone around a faint star on the same orbit as G2.

Pericenter passage of the gas cloud G2 in the Galactic Center