[Gpredict-svn] SF.net SVN: gpredict: [41] trunk/src/predict-tools.c

[<cs...@us...>]

Revision: 41
          http://gpredict.svn.sourceforge.net/gpredict/?rev=41&view=rev
Author:   csete
Date:     2008-04-30 15:34:44 -0700 (Wed, 30 Apr 2008)

Log Message:
-----------
Reduced elevation thresholds in find_aos and find_los to get more accurate results and avoid false pass predictions (bug #1954664).

Modified Paths:
--------------
    trunk/src/predict-tools.c

Modified: trunk/src/predict-tools.c
===================================================================
--- trunk/src/predict-tools.c	2008-04-28 20:45:52 UTC (rev 40)
+++ trunk/src/predict-tools.c	2008-04-30 22:34:44 UTC (rev 41)
@@ -167,11 +167,7 @@
 		/* fine steps */
 		while ((aostime == 0.0) && (t <= (start + maxdt))) {
 
-			/* FIXME: should change to el < -0.3?
-			   accuracy seems to be less than +/- 1 sec
-			   except when the sat is around 0.0 EL
-			*/
-			if (fabs (sat->el) < 0.03) {
+			if (fabs (sat->el) < 0.005) {
 				aostime = t;
 			}
 			else {
@@ -195,11 +191,7 @@
 		/* fine steps */
 		while (aostime == 0.0) {
 
-			/* FIXME: should change to el < -0.3?
-			   accuracy seems to be less than +/- 1 sec
-			   except when the sat is around 0.0 EL
-			*/
-			if (fabs (sat->el) < 0.03) {
+			if (fabs (sat->el) < 0.005) {
 				aostime = t;
 			}
 			else {
@@ -278,7 +270,7 @@
 			t += sat->el * sqrt(sat->alt)/502500.0;
 			predict_calc (sat, qth, t);
 			
-			if (fabs(sat->el) < 0.03)
+			if (fabs(sat->el) < 0.005)
 				lostime = t;
 		}
 	}
@@ -298,7 +290,7 @@
 			t += sat->el * sqrt(sat->alt)/502500.0;
 			predict_calc (sat, qth, t);
 			
-			if (fabs(sat->el) < 0.03)
+			if (fabs(sat->el) < 0.005)
 				lostime = t;
 		}
 	}


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