Zenith Satellite Tracker

Getting Started

Zenith is a satellite tracking application that helps you monitor satellite passes, plan contacts, and track amateur radio satellites.

To get started:

1. Click the Options button to configure your location and select satellites to track.
2. Browse the map to see real-time satellite positions and footprints.
3. View upcoming passes in the sidebar panel on the left.

Time Display

Important: All times in Zenith are displayed in your local time zone, not UTC.

This includes:

• Pass start and end times in the sidebar and schedule view
• AMSAT status reporting timestamps
• APRS packet timestamps
• All other time-related displays throughout the application

When coordinating with other stations, make sure to confirm the time zone being used for scheduling contacts.

Map Navigation

The main map shows Earth with satellite positions in real-time:

• Zoom: Use the scroll wheel or +/- buttons
• Pan: Click and drag the map
• Satellite Info: Click on a satellite marker for detailed information

Satellite Selection

To select which satellites to track:

1. Click Options and go to the "Satellites" tab
2. Check the boxes for satellites you want to track
3. Use the search box to filter the satellite list
4. Click Save & Close to apply your selection

Pass Predictions

Upcoming satellite passes appear in the left sidebar:

• Green: Currently visible passes
• Yellow: Upcoming passes
• Blue: Passes that will be visible soon

Click on a pass to view detailed information about the satellite and to see a polar radar visualization of the pass.

Schedule View

Click the Schedule button to see a detailed table of all upcoming passes. You can:

• Filter passes by satellite
• Choose how many days to show in the schedule
• View start/end times, maximum elevation, and duration

Sked Planning

Use the Sked Planning feature to find mutual visibility windows with another station:

1. Enter the remote station's grid square
2. Select which satellites to include
3. Set minimum elevation and time period
4. Click "Find Mutual Passes" to see opportunities for contacts

Roves Integration

If you have a Hams.at API key, you can:

• View upcoming rover activations in the sidebar
• Click a rove to open its details on Hams.at
• Configure roves display in the Options under the "Hams.at" tab

Radio Integration

Zenith supports integration with CSN Technologies S.A.T for automatic satellite tracking with compatible rotators and radios.

To configure:

1. Go to Options > "Radio" tab
2. Enable CSN Technologies S.A.T integration
3. Enter your device's IP address or domain name

QTRigDoppler Integration

Zenith supports QTRigDoppler for advanced radio and rotator control:

1. Go to Options > "Radio" tab and enable QTRigDoppler.
2. Enter your QTRigDoppler server address.
3. Use the QTRigDoppler panel to select satellites, transponders, adjust frequencies, and control your radio/rotator.

APRS Integration

Zenith includes an APRS panel for sending and receiving APRS messages:

• Enable APRS in Options > "APRS" tab and configure the WebSocket server and port.
• Open the APRS panel to send messages, CQ, or your position, and view received packets.

Cloudlog API

Integrate with Cloudlog to log your satellite contacts automatically:

1. Enable Cloudlog API in Options > "Radio" tab.
2. Enter your Cloudlog URL and API key (found in your Cloudlog user settings).

Partner View

Use Partner View to visualize a contact's location and elevation on the map:

1. Click the Partner View button () on the map.
2. Enter your partner's grid square and an optional label.
3. See their position and real-time elevation overlayed on the map.

Manual TLE Input

If you need to add or update satellite TLEs manually:

1. Go to Options > "Satellites" tab and click Input TLEs Manually.
2. Paste the 3-line TLE data for each satellite and submit.