add a print for sats closer than 2 degs

Satellites/predictsatsgp4.cc

@@ -277,6 +277,9 @@ int main(int narg, char *arg[])
       cout <<"  velocity: |V|="<<velsat<<" km/s, angular |Vangle|="<<vangmod<<", Vaz="<<vangaz<<", Valt="<<vangalt<<" deg/min"<<endl;
       cout <<"  closest-los: sep="<<sepmin<<" "<<datemin<<" "<<topomin<<" "<<vsatfilename[isat]<<endl;
       if(sepmin>sep) cout<<"WARNING: sep="<<sep<<"< sepmin="<<sepmin<<endl;
+
+      if (sepmin<2.) cout << "GOOD SAT "  <<satname << " " << vsatfilename[isat]<<" " << "  closest-los: sep="<<sepmin<<" "<<datemin<<" "<<topomin << endl;
+
     //
     } catch (SatelliteException& e) {
       if(lp>0) cerr<<"Sat="<<satname<<" skipped! "<<e.what()<<" "<<vsatfilename[isat]<<endl;