G0.25 was observed with ALMA (Hills et al. 2010) during Early Science Cycle 0 with extended configuration, using the Band 3 receivers. The array was in a configuration with projected baselines length between ∼ 36.1 to ∼ 452.8 m, sensitive to maximum angular scales of 9. ′′ 1 and providing a synthesized beam of 2. ′′ 30 × 1. ′′ 53. The field of view was ∼ 65. ′′ 5. A total of six **data** sets were collected, using 24 antennas of 12 m diameter and accounting for 4 hours of total integration time on target. Weather conditions were good and stable, the system temperature varied from 50 to 60 K.