diff --git a/conf/gnss-sdr_Galileo_E1.conf b/conf/gnss-sdr_Galileo_E1.conf
index 73efd3f40..ee08e951d 100644
--- a/conf/gnss-sdr_Galileo_E1.conf
+++ b/conf/gnss-sdr_Galileo_E1.conf
@@ -164,7 +164,7 @@ Resampler.sample_freq_out=4000000
 
 ;######### CHANNELS GLOBAL CONFIG ############
 ;#count: Number of available satellite channels.
-Channels.count=4
+Channels.count=1
 ;#in_acquisition: Number of channels simultaneously acquiring
 Channels.in_acquisition=1
 ;#system: GPS, GLONASS, GALILEO, SBAS or COMPASS
diff --git a/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e1b_telemetry_decoder_cc.cc b/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e1b_telemetry_decoder_cc.cc
index a652c21b7..cae66432e 100644
--- a/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e1b_telemetry_decoder_cc.cc
+++ b/src/algorithms/telemetry_decoder/gnuradio_blocks/galileo_e1b_telemetry_decoder_cc.cc
@@ -274,6 +274,15 @@ void galileo_e1b_telemetry_decoder_cc::decode_word(double *page_part_symbols,int
     	std::cout<<"T0G="<<almanac.t_0G_10<<std::endl;
     	std::cout<<"WN_0G_10="<<almanac.WN_0G_10<<std::endl;
 
+    	std::cout<<"Actual parameters:"<<std::endl;
+    	std::cout<<"d_TOW_at_current_symbol="<<d_TOW_at_current_symbol<<std::endl;
+    	std::cout<<"d_nav.WN_0="<<d_nav.WN_0<<std::endl;
+
+    	double delta_t;
+    	delta_t=almanac.A_0G_10+almanac.A_1G_10*(d_TOW_at_current_symbol-almanac.t_0G_10+604800*(fmod((d_nav.WN_0-almanac.WN_0G_10),64)));
+
+    	std::cout<<"delta_t="<<delta_t<<"[s]"<<std::endl;
+
     }
 }
 
diff --git a/src/core/system_parameters/MATH_CONSTANTS.h b/src/core/system_parameters/MATH_CONSTANTS.h
index b8eeabb92..8e106b084 100644
--- a/src/core/system_parameters/MATH_CONSTANTS.h
+++ b/src/core/system_parameters/MATH_CONSTANTS.h
@@ -79,7 +79,7 @@ const double TWO_N43 = (1.136868377216160e-013);  //!< 2^-43
 const double TWO_N46 = (1.4210854715202e-014);    //!< 2^-46
 
 const double TWO_N50 = (8.881784197001252e-016);  //!< 2^-50
-const double TWO_N51 = (4.44089209850063e+016);   //!< 2^-51
+const double TWO_N51 = (4.44089209850063e-016);   //!< 2^-51
 const double TWO_N55 = (2.775557561562891e-017);  //!< 2^-55
 const double TWO_N59 = (1.73472347597681e-018);   //!< 2^-59