TITLE: GCN CIRCULAR NUMBER: 9307 SUBJECT: GRB 090427: pseudo-z= 1.48 from prompt emission spectrum DATE: 09/04/30 14:38:47 GMT FROM: Alexandre Pelangeon at LATT,CNRS,U. Toulouse A. Pelangeon & J-L. Atteia (LATT-OMP) report: We used the spectral parameters of GRB 090427 provided by Golenetskii et al. (GCNC 9296) to compute the spectral pseudo-redshift(**) of this burst localized by IPN (Pal'shin et al., GCNC 9277). We find a pseudo-redshift pz= 1.48 +/- 0.20 ** cf. http://www.ast.obs-mip.fr/grb/pz