From 68cd6f333a3930022489f1632250898f1179d809 Mon Sep 17 00:00:00 2001
From: Cees Bassa <cbassa@gmail.com>
Date: Sat, 17 Mar 2018 11:11:52 +0100
Subject: [PATCH] Improved satellite selection for overlay

---
 rftrace.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/rftrace.c b/rftrace.c
index 8187edd..049a7f7 100644
--- a/rftrace.c
+++ b/rftrace.c
@@ -478,7 +478,9 @@ struct trace *compute_trace(char *tlefile,double *mjd,int n,int site_id,float fr
 	break;
       status=sscanf(line,"%d %lf",&satno,&freq0);
 
-      if (freq0>=0.9*fmin && freq0<=1.1*fmax)
+      if (graves==1 && fabs(freq0-143.050)<1e-3)
+	i++;
+      else if (freq0>=fmin && freq0<=fmax && graves==0)
 	i++;
 	
     }
@@ -520,8 +522,14 @@ struct trace *compute_trace(char *tlefile,double *mjd,int n,int site_id,float fr
     if (fgetline(infile,line,LIM)<=0)
       break;
     status=sscanf(line,"%d %lf",&satno,&freq0);
+
+    flag=0;
+    if (graves==1 && fabs(freq0-143.050)<1e-3)
+      flag=1;
+    else if (freq0>=fmin && freq0<=fmax && graves==0)
+      flag=1;
     
-    if (freq0<0.9*fmin || freq0>1.1*fmax)
+    if (flag==0)
       continue;
     
     // Allocate