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    <h1>Coconut CubeSat Amateur Radio Information</h1>

    <img src="images/coconut_logo.png" alt="Coconut CubeSat Mission Logo" style="width:40%;height:auto;margin: 0 30%;">

    <h2>Overview</h2>
    <p>
      Coconut is a 1U CubeSat developed by the Sun Devil Satellite Laboratory at Arizona State University. It is
      expected to be launched to the ISS on the Cygnus NG-24 ISS resupply mission.
      The primary mission of Coconut is to provide a digipeater service for amateurs using inexpensive, low-powered LoRa Modules.
      This will allow students at ASU and other amateur radio users to interact using inexpensive ground nodes. Coconut
      is being built 100% by students. It is a proof of concept that demonstrates the capabilities of students to build
      their own CubeSat. In addition, we will host a store and forward experiment, whereby amateurs can register on our
      project website, and then have data that they uplink, again using LoRa, captured at our ground station, and then
      forwarded by means of their choice to the specified recipient. The mission is oriented to students to engage in
      hands-on learning and experience with spacecraft hardware and radio transmission. It will also allow hams
      worldwide to utilize a standard digipeater function for the entire lifetime of the satellite, as well as give them
      the opportunity to participate in a store-and-forward experiment.
    </p>
    <a href="https://github.com/ASU-SDSL/coconut-fsw/blob/orbit/orbit.txt">Coconut TLE (currently using the ISS TLE as a
      placeholder)</a>

    <h2>Link Information</h2>
    <ul>
      <li>
        Uplink/Downlink: 437.400 MHz (LoRa @ 1W TX)
        <ul>
          <li>Bandwidth: 62.5 kHz</li>
          <li>Spreading Factor: 10</li>
          <li>Coding Rate: 5</li>
          <li>Sync Word: 0x12</li>
          <li>Preamble Length: 8</li>
        </ul>
      </li>
      <li><a
          href="https://docs.google.com/spreadsheets/d/1Q-fPnBuUnnPDYk2wUIeAe1VnGKU3qRZZANcm7Eob2L0/edit?usp=sharing">Downlink
          Packet Structures (Google Sheets)</a></li>
      <li><a href="https://github.com/ASU-SDSL/coconut-fsw/blob/orbit/kaitai">Heartbeat Kaitai
          Packet Structure</a></li>
    </ul>
    <img id="coconutPhoto" src="images/coconut_flight_ready.jpeg" alt="Photo of flight-ready Coconut" />
    <h2>Additional Information</h2>
    <ul>
      <li><a href="https://iaru.amsat-uk.org/finished_detail.php?serialnum=1050">IARU Frequency Coordination</a></li>
      <li><a href="https://github.com/ASU-SDSL/coconut-fsw">Coconut's Open Source Flight Software</a></li>
    </ul>

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