From 583288fafc80a71c35ed589b55eaf276f73eae9f Mon Sep 17 00:00:00 2001
From: James Smith <jsmith@Jamess-MBP.Home>
Date: Mon, 22 Dec 2025 18:00:20 +0000
Subject: [PATCH] Fix polar plot trajectory to only show during active passes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The trajectory line now only appears when the satellite is currently
making the selected pass, fixing the confusing mismatch between the
predicted path and real-time position.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 intercept.py | 41 ++++++++++++++++++++++++-----------------
 ±            | 12 ++++++++++++
 2 files changed, 36 insertions(+), 17 deletions(-)
 create mode 100644 ±

diff --git a/intercept.py b/intercept.py
index 6f04c65..6ee5333 100755
--- a/intercept.py
+++ b/intercept.py
@@ -13810,27 +13810,34 @@ def satellite_dashboard():
                 ctx.fillText(l.text, x, y);
             });
 
-            // Draw pass trajectory if available
+            // Draw pass trajectory only if the pass is currently happening
             if (passes.length > 0 && selectedPass !== null && passes[selectedPass]?.trajectory) {
                 const pass = passes[selectedPass];
-                ctx.strokeStyle = color;
-                ctx.lineWidth = 2;
-                ctx.setLineDash([8, 4]);
-                ctx.globalAlpha = 0.5;
-                ctx.beginPath();
+                const passStart = new Date(pass.startTimeISO);
+                const passEnd = new Date(passStart.getTime() + (pass.duration || 10) * 60 * 1000);
+                const now = new Date();
 
-                pass.trajectory.forEach((pt, i) => {
-                    const r = radius * (1 - pt.el / 90);
-                    const angle = (pt.az - 90) * Math.PI / 180;
-                    const x = cx + r * Math.cos(angle);
-                    const y = cy + r * Math.sin(angle);
+                // Only show trajectory if pass is currently active
+                if (now >= passStart && now <= passEnd) {
+                    ctx.strokeStyle = color;
+                    ctx.lineWidth = 2;
+                    ctx.setLineDash([8, 4]);
+                    ctx.globalAlpha = 0.5;
+                    ctx.beginPath();
 
-                    if (i === 0) ctx.moveTo(x, y);
-                    else ctx.lineTo(x, y);
-                });
-                ctx.stroke();
-                ctx.setLineDash([]);
-                ctx.globalAlpha = 1;
+                    pass.trajectory.forEach((pt, i) => {
+                        const r = radius * (1 - pt.el / 90);
+                        const angle = (pt.az - 90) * Math.PI / 180;
+                        const x = cx + r * Math.cos(angle);
+                        const y = cy + r * Math.sin(angle);
+
+                        if (i === 0) ctx.moveTo(x, y);
+                        else ctx.lineTo(x, y);
+                    });
+                    ctx.stroke();
+                    ctx.setLineDash([]);
+                    ctx.globalAlpha = 1;
+                }
             }
 
             // Draw current satellite position
diff --git a/± b/±
new file mode 100644
index 0000000..97e6663
--- /dev/null
+++ b/±
@@ -0,0 +1,12 @@
+
+# Please enter the commit message for your changes. Lines starting
+# with '#' will be ignored, and an empty message aborts the commit.
+#
+# Committer: James Smith <jsmith@Jamess-MBP.Home>
+#
+# On branch main
+# Your branch is up to date with 'origin/main'.
+#
+# Changes to be committed:
+#	modified:   intercept.py
+#