X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=cmd%2Fshow%2Fsatellite.pl;h=45e765f2928d8d5f6a9ba6fbb299046b7b7943fa;hb=d6ff8d0990c60b84a4da6d012f7fc043121e43e8;hp=0f6131dd8ebdacab9681949dc226bb60d85654f0;hpb=589de1133c9ef2ecc6567473c24cff1717fb604b;p=spider.git

diff --git a/cmd/show/satellite.pl b/cmd/show/satellite.pl
index 0f6131dd..45e765f2 100644
--- a/cmd/show/satellite.pl
+++ b/cmd/show/satellite.pl
@@ -2,55 +2,119 @@
 #
 # show satellite az/el 
 #
-# 1999/12/9 Steve Franke K9AN
+# copyright (c) 1999 Steve Franke K9AN
 #
+# $Id$
 # 
+# 2001/12/16 added age of keps in the sh/sat output list.
+#   Note - there is the potential for problems when satellite name
+#   is longer than 20 characters. The list shows only the 
+#   first 20 chars, so user won't know the full name.
+#   So far, it seems that only the GPS sats even come close... 
 
-my ($self, $satname) = @_;
+my ($self, $line) = @_;
 my @out;
 
-my ($lat, $lon, $alt, $jtime); # lats and longs in radians
+my @f = split /\s+/, $line;
+my $satname = uc shift @f;
+my $numhours = shift @f;	# the number of hours ahead to print
+my $step = shift @f;		# tracking table resolution in minutes
+
+# default hours and step size
+$numhours = 3 unless $numhours && $numhours =~ /^\d+$/;
+$numhours = 3 if $numhours < 0;
+$numhours = 24 if $numhours > 24;
+$step = 5 unless $step && $step =~ /^\d+$/;
+$step = 5 if $step < 0;
+$step = 30 if $step > 30;
+
+# get nearest lat and long (I can see we will need the altitude here soon as well :-)
+my $lat = $self->user->lat;
+my $lon = $self->user->long;
+my $alt = 0;
+my $call = $self->call;
+unless ($lon || $lat) {
+	$lat = $main::mylatitude;
+	$lon = $main::mylongitude;
+	$call = $main::mycall;
+}
+
+my $jtime; # lats and longs in radians
 my ($sec, $min, $hr, $day, $mon, $yr) = (gmtime($main::systime))[0,1,2,3,4,5];
 #printf("%2.2d %2.2d %2.2d %2.2d %2.2d\n",$min,$hr,$day,$mon,$yr);
 
 $mon++;
 $yr += 1900;
-$lat=$main::mylatitude;
-$lon=$main::mylongitude;
-$alt=0.0;
 
 $jtime=Sun::Julian_Day($yr,$mon,$day)+$hr/24+$min/60/24;
-($yr,$mon,$day,$hr,$min)=Sun::Calendar_date_and_time_from_JD($jtime);
-#printf("%2.2d %2.2d %2.2d %2.2d %2.2d\n",$min,$hr,$day,$mon,$yr);
-push @out,sprintf("Tracking table for $satname");
-push @out,sprintf("dd/mm  UTC   Lat    Lon    Alt(km)  Az     El   Dist(km)");
-my ($slat,$slon,$salt,$az,$el,$distance)=
-	Sun::get_satellite_pos(
-  	  $jtime,$lat*$d2r,$lon*$d2r,$alt,$satname);
-push @out,sprintf(   # print the current satellite position
-	"Now   %2.2d:%2.2d %6.1f %6.1f %6.1f  %6.1f %6.1f %6.1f", 
-	$hr,$min,$slat*$r2d,$slon*$r2d,$salt,
-	$az*$r2d,$el*$r2d,$distance);
-
-my $numsteps=0;
-my $step = 2; # tracking table resolution in minutes
-$jtime=$jtime+$step/24/60;
-while ( $numsteps < 6*60/$step ) # for now, look 6 hours ahead for tracking table
+
+#$DB::single=1;
+if ($satname && $Sun::keps{$satname}) {
+
+	($yr,$mon,$day,$hr,$min)=Sun::Calendar_date_and_time_from_JD($jtime);
+	#printf("%2.2d %2.2d %2.2d %2.2d %2.2d\n",$min,$hr,$day,$mon,$yr);
+	push @out, $self->msg("pos", $call, slat($lat), slong($lon));
+	push @out, $self->msg("sat1", $satname, $numhours, $step);
+	push @out, $self->msg("sat2");
+	
+	my ($slat,$slon,$salt,$az,$el,$distance)=Sun::get_satellite_pos($jtime,$lat*$d2r,$lon*$d2r,$alt,$satname);
+	# print the current satellite position
+	push @out,sprintf("Now   %2.2d:%2.2d %7.1f %7.1f %7.1f %7.1f %7.1f %7.1f", 
+					  $hr,$min,$slat*$r2d,$slon*$r2d,$salt,
+					  $az*$r2d,$el*$r2d,$distance);
+
+	my $numsteps=0;
+	$jtime=$jtime+$step/24/60;
+	my $disc = 0;             # discontinuity flag
+	while ( $numsteps < $numhours*60/$step ) # look $numhours  ahead for tracking table
 	{
-	my ($yr,$mon,$day,$hr,$min)=Sun::Calendar_date_and_time_from_JD($jtime);
-	my ($slat,$slon,$salt,$az,$el,$distance)=
-		Sun::get_satellite_pos(
-		$jtime,$lat*$d2r,$lon*$d2r,$alt,$satname);
-	if( $el*$r2d > -5 ) {
-		push @out,sprintf(
-			"%2.2d/%2.2d %2.2d:%2.2d %6.1f %6.1f %6.1f  %6.1f %6.1f %6.1f", 
-			$day,$mon,$hr,$min,$slat*$r2d,$slon*$r2d,$salt,
-			$az*$r2d,$el*$r2d,$distance);
+		my ($yr,$mon,$day,$hr,$min)=Sun::Calendar_date_and_time_from_JD($jtime);
+		my ($slat,$slon,$salt,$az,$el,$distance)=Sun::get_satellite_pos($jtime,$lat*$d2r,$lon*$d2r,$alt,$satname);
+		if ( $el*$r2d > -5 ) {
+			if ($disc) {
+				$disc = 0;
+				push @out, $self->msg("satdisc");
+			}
+			push @out,sprintf("%2.2d/%2.2d %2.2d:%2.2d %7.1f %7.1f %7.1f %7.1f %7.1f %7.1f", 
+							  $day,$mon,$hr,$min,$slat*$r2d,$slon*$r2d,$salt,
+							  $az*$r2d,$el*$r2d,$distance);
+		} else {
+			$disc++;
+		}
+		$numsteps++;
+		$jtime=$jtime+$step/60/24;
+	}
+} else {
+	push @out, $self->msg("satnf", $satname) if $satname;
+	push @out, $self->msg("sat3");
+	push @out, $self->msg("sat4");
+	my @l;
+	my $i = 0;
+	my $sat;
+	foreach $sat (sort keys %Sun::keps) {
+		if ($i >= 2) {
+			push @out,join '  ', @l;
+			@l = ();
+			$i = 0;
 		}
-	$numsteps++;
-	$jtime=$jtime+$step/60/24;
+		my $epoch=$Sun::keps{$sat}->{epoch};
+		my $jt_epoch=Sun::Julian_Date_of_Epoch($epoch);
+		my $keps_age=int($jtime-$jt_epoch);
+		push @l, sprintf("%20s: %4s",$sat,$keps_age);
+		$i++;
 	}
+	push @out, join '  ', @l;
+}
 
 return (1,@out);
 
 
+
+
+
+
+
+
+
+
+