The Galactic Center region, including the high energy emitter 1E1740.7–2942, has been observed on May 17, 1989 in the energy range 15–150 keV. The measurement was performed with the balloon borne experiment ‘‘POKER’’ based on an array of three high pressure Multiwire Proportional counters (MWPC) with energy resolution of 10% at 120 keV. The total geometric area was 8,000 cm2and the experiment was passively collimated with copper hexagonal collimator with 1.9 degree FWHM field of view. Data analysis is still in progress and preliminary results are presented.