a1 Instituto Nacional de Astrofisica, Optica y Electronica, Mexico
a2 NRAO, Socorro, NM, USA
a3 Salpointe Catholic High School, Tucson, AZ, USA
a4 Raman Research Institute, Bangalore, India
a5 San Jose, CA, USA
OH masers spots are observed with the VLBA at 1612, 1665 and 1667 MHz. The orientation of the ellipses resulting from scattering are all nearly aligned perpendicular to the galactic plane. These ordered orientation could be due to the galactic magnetic field.