feat: Add ISS tracking globe and location controls to SSTV mode

- Update TLE data with current orbital elements for accurate predictions
- Add location inputs (lat/lon) and GPS button to SSTV stats strip
- Add TLE update button to fetch latest orbital data from CelesTrak
- Add 3D globe visualization showing real-time ISS position
- Display ISS coordinates and altitude below globe
- Auto-refresh ISS position every 5 seconds
- Add NOAA-15, NOAA-18, NOAA-19 satellites to TLE data

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

static/css/modes/sstv.css

@@ -155,6 +155,60 @@
     letter-spacing: 0.5px;
 }
 
+/* Location inputs in strip */
+.sstv-strip-location {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+}
+
+.sstv-loc-input {
+    width: 70px;
+    padding: 4px 6px;
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 10px;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border-color);
+    border-radius: 4px;
+    color: var(--text-primary);
+    text-align: right;
+}
+
+.sstv-loc-input:focus {
+    outline: none;
+    border-color: var(--accent-cyan);
+}
+
+.sstv-strip-btn.gps {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    background: var(--bg-tertiary);
+    color: var(--text-secondary);
+    border: 1px solid var(--border-color);
+}
+
+.sstv-strip-btn.gps:hover {
+    background: var(--accent-green);
+    color: #000;
+    border-color: var(--accent-green);
+}
+
+.sstv-strip-btn.update-tle {
+    display: flex;
+    align-items: center;
+    gap: 4px;
+    background: var(--bg-tertiary);
+    color: var(--text-secondary);
+    border: 1px solid var(--border-color);
+}
+
+.sstv-strip-btn.update-tle:hover {
+    background: var(--accent-orange);
+    color: #000;
+    border-color: var(--accent-orange);
+}
+
 /* ============================================
    LIVE DECODE SECTION
    ============================================ */
@@ -394,6 +448,65 @@
     margin-bottom: 12px;
 }
 
+/* ============================================
+   ISS ROW (Globe + Pass Info)
+   ============================================ */
+.sstv-iss-row {
+    display: flex;
+    gap: 16px;
+    align-items: stretch;
+}
+
+.sstv-globe-container {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    background: var(--bg-card);
+    border: 1px solid var(--border-color);
+    border-radius: 8px;
+    padding: 12px;
+    min-width: 220px;
+}
+
+#sstvGlobe {
+    border-radius: 50%;
+    background: radial-gradient(circle at 30% 30%, #1a3a5c, #0a1929);
+    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3), inset 0 0 40px rgba(0, 0, 0, 0.5);
+}
+
+.sstv-globe-info {
+    text-align: center;
+    margin-top: 8px;
+}
+
+.sstv-globe-label {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 9px;
+    color: var(--text-dim);
+    text-transform: uppercase;
+    letter-spacing: 1px;
+}
+
+.sstv-globe-coords {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 12px;
+    color: var(--accent-cyan);
+    margin-top: 4px;
+}
+
+.sstv-globe-alt {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 10px;
+    color: var(--text-secondary);
+    margin-top: 2px;
+}
+
+.sstv-pass-info-container {
+    flex: 1;
+    display: flex;
+    align-items: center;
+}
+
 /* ============================================
    ISS PASS INFO
    ============================================ */
@@ -405,7 +518,7 @@
     background: rgba(0, 212, 255, 0.05);
     border: 1px solid rgba(0, 212, 255, 0.2);
     border-radius: 6px;
-    margin-bottom: 0;
+    flex: 1;
 }
 
 .sstv-iss-icon {
@@ -504,6 +617,25 @@
     }
 }
 
+@media (max-width: 1024px) {
+    .sstv-iss-row {
+        flex-direction: column;
+    }
+
+    .sstv-globe-container {
+        flex-direction: row;
+        min-width: auto;
+        width: 100%;
+        justify-content: center;
+        gap: 16px;
+    }
+
+    .sstv-globe-info {
+        margin-top: 0;
+        text-align: left;
+    }
+}
+
 @media (max-width: 768px) {
     .sstv-stats-strip {
         padding: 8px 12px;
@@ -514,6 +646,14 @@
         display: none;
     }
 
+    .sstv-strip-location {
+        flex-wrap: wrap;
+    }
+
+    .sstv-loc-input {
+        width: 55px;
+    }
+
     .sstv-gallery-grid {
         grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
         gap: 8px;
@@ -524,6 +664,14 @@
         flex-direction: column;
         text-align: center;
     }
+
+    .sstv-globe-container {
+        flex-direction: column;
+    }
+
+    .sstv-globe-info {
+        text-align: center;
+    }
 }
 
 @keyframes pulse {