diff --git a/map65.py b/map65.py
index 64cefb267..c95dcfe0e 100644
--- a/map65.py
+++ b/map65.py
@@ -1096,7 +1096,10 @@ def update():
             bmtext.insert(END,'Freq  DF Pol  UTC\n')
             bmtext.insert(END,'----------------------------------------\n')
             for i in range(len(lines)):
-                nage=int(lines[i][41:])
+                try:
+                    nage=int(lines[i][41:])
+                except:
+                    nage=0
                 lines[i]=lines[i][:41]
                 if nage==0: attr='age0'
                 if nage==1: attr='age1'
diff --git a/savetf2.F90 b/savetf2.F90
new file mode 100644
index 000000000..d2392fcc4
--- /dev/null
+++ b/savetf2.F90
@@ -0,0 +1,50 @@
+subroutine savetf2(id,nsave,nutc)
+  parameter (NZ=60*96000)
+  parameter (NSPP=174)
+  parameter (NPKTS=NZ/NSPP)
+  integer*2 id(4,NZ)
+  real*4 ss(NPKTS),ss2(60)
+  real*8 dt,t,t2
+
+  dt=NSPP/96000.d0
+  t=0.d0
+  nh=nutc/100
+  nm=mod(nutc,100)
+  t2=3600*nh + 60*nm
+  fac=1.0/(4.0*NSPP)
+
+  do i=1,NPKTS
+     s=0.
+     do n=1,NSPP
+        s=s + float(id(1,i))**2 + float(id(2,i))**2 + float(id(3,i))**2 + &
+             float(id(4,i))**2 
+     enddo
+     ss(i)=fac*s
+     t=t+dt
+     t2=t2+dt
+     if(nsave.eq.3) write(24,1010) t,t2,ss(i)
+1010 format(f6.6,f15.6,f10.3)
+  enddo
+
+  if(nsave.eq.2) then
+     dt2=551*dt
+     t=0.d0
+     t2=3600*nh + 60*nm
+     k=0
+     do i=1,60
+        s=0.
+        ns=0
+        do n=1,551
+           k=k+1
+           s=s + ss(k)
+           if(ss(k).gt.0.0) ns=ns+1
+        enddo
+        ss2(i)=s/ns
+        t=t+dt
+        t2=t2+dt2
+        write(25,1010) t,t2,ss2(i)
+     enddo
+  endif
+
+  return
+end subroutine savetf2