predict.sondehub.org Open in urlscan Pro
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Form analysis
4 forms found in the DOM

<form class="leaflet-control-layers-list">
  <div class="leaflet-control-layers-base"><label>
      <div><input type="radio" class="leaflet-control-layers-selector" name="leaflet-base-layers" checked="checked"><span> OSM</span></div>
    </label><label>
      <div><input type="radio" class="leaflet-control-layers-selector" name="leaflet-base-layers"><span> ESRI Satellite</span></div>
    </label><label>
      <div><input type="radio" class="leaflet-control-layers-selector" name="leaflet-base-layers"><span> OpenTopoMap</span></div>
    </label></div>
  <div class="leaflet-control-layers-separator" style="display: none;"></div>
  <div class="leaflet-control-layers-overlays"></div>
</form>

Name: location_save_form —

<form name="location_save_form" id="location_save_form">
  <table name="req_table" id="req_table">
    <tbody>
      <tr>
        <td>Latitude: </td>
        <td><input type="text" name="req_lat" id="req_lat" size="15"></td>
      </tr>
      <tr>
        <td>Longitude: </td>
        <td><input type="text" name="req_lon" id="req_lon" size="15"></td>
      </tr>
      <tr>
        <td>Altitude: </td>
        <td><input type="text" name="req_alt" id="req_alt" size="15"></td>
      </tr>
      <tr>
        <td>Site Name: </td>
        <td><input type="text" name="req_name" id="req_name" size="15"></td>
      </tr>
      <tr>
        <td></td>
        <td><input type="button" value="Save" name="submit" id="req_sub_btn" class="ui-button ui-corner-all ui-widget" role="button"></td>
      </tr>
    </tbody>
  </table>
</form>

Name: userselection — GET

<form name="userselection" action="" method="GET">
  <fieldset id="notamsFieldset" name="notams">
    <legend>NOTAM details</legend>
    <div id="notamsDiv" style="display: block"><input type="checkbox" name="warnings" id="warnings" onclick="setNOTAMs();" value="yes" checked="checked">Show NOTAMs<br></div>
  </fieldset>
  <fieldset id="airspaceFieldset">
    <legend>Airspace Details</legend>
    <div id="airspaceDiv" style="display: block"><input type="checkbox" id="defaultAirspace" name="default" value="yes" onclick="showStdAirspace();">Show Default airspace<br><input type="checkbox" id="clA" name="clA" value="yes"
        onclick="setAirspace();">Show class A airspace<br><input type="checkbox" id="clD" name="clD" value="yes" onclick="setAirspace();">Show class D airspace<br><input type="checkbox" id="clE" name="clE" value="yes" onclick="setAirspace();">Show
      class E airspace<br><input type="checkbox" id="clG" name="clG" value="yes" onclick="setAirspace();">Show class G airspace<br><input type="checkbox" id="clP" name="clP" value="yes" onclick="setAirspace();">Show prohibited airspace<br><input
        type="checkbox" id="clR" name="clR" value="yes" onclick="setAirspace();">Show restricted airspace<br><input type="checkbox" id="clM" name="clM" value="yes" onclick="setAirspace();">Show MATZs<br><input type="checkbox" id="clQ" name="clQ"
        value="yes" onclick="setAirspace();">Show danger areas<br><input type="checkbox" id="clX" name="clX" value="yes" onclick="setAirspace();">Show offshore/NOTAMed danger areas<br><input type="checkbox" id="clH" name="clH" value="yes"
        onclick="setAirspace();">Show hazards (HIRTA/AIAA etc)</div>
  </fieldset>
</form>

Name: modelForm —

<form action="" id="modelForm" name="modelForm">
  <table id="launch-card">
    <tbody>
      <tr>
        <td>Launch Site: <span>
            <a id="cookieLocations" class="tipsyLink" title="View your saved launch sites">Custom</a>
          </span>
        </td>
        <td>
          <select id="site" name="launchsite">
            <option value="Auburn">Auburn</option>
            <option value="Churchill">Churchill</option>
            <option value="Elsworth">Elsworth</option>
            <option value="Adelaide">Adelaide</option>
            <option value="Tullamarine">Tullamarine</option>
            <option value="Boston Spa">Boston Spa</option>
            <option value="Mt Barker">Mt Barker</option>
            <option value="Cookstown">Cookstown</option>
            <option value="Preston St Mary">Preston St Mary</option>
            <option value="Ross-on-Wye">Ross-on-Wye</option>
            <option value="Ararat">Ararat</option>
            <option value="Other">Other</option>
          </select>
        </td>
      </tr>
      <tr>
        <td>Latitude/Longitude:</td>
        <td>
          <input id="lat" type="text" size="8" name="lat" value="-34.0297" onkeydown="SetSiteOther()">&nbsp;/&nbsp; <input id="lon" type="text" size="8" name="lon" value="138.6917" onkeydown="SetSiteOther()">
        </td>
      </tr>
      <tr>
        <td>
          <span><a id="setWithClick" class="tipsyLink" title="Use the map to set your desired launch site">
                    Set With Map</a></span>
        </td>
        <td>
          <span>
            <a id="req_open" class="tipsyLink" title="Save this location to a browser cookie">
                        Save Location</a>
          </span>
        </td>
      </tr>
      <tr>
        <td>Launch altitude (m):</td>
        <td>
          <input id="initial_alt" type="text" name="initial_alt" value="0">
        </td>
      </tr>
      <tr>
        <td>Launch Time (UTC):</td>
        <td>
          <input id="hour" type="text" name="hour" value="" maxlength="2" size="2"> : <input id="min" type="text" name="min" value="" maxlength="2" size="2">
          <input id="sec" type="hidden" name="second" value="0">
        </td>
      </tr>
      <tr>
        <td>Launch Date:</td>
        <td>
          <input id="day" type="text" name="day" value="" maxlength="2" size="2">
          <select id="month" name="month">
            <!-- Hard-coding these options in. These were generated by PHP in the old code. -->
            <option value="1">Jan</option>
            <option value="2">Feb</option>
            <option value="3">Mar</option>
            <option value="4">Apr</option>
            <option value="5">May</option>
            <option value="6">Jun</option>
            <option value="7">Jul</option>
            <option value="8">Aug</option>
            <option value="9">Sep</option>
            <option value="10">Oct</option>
            <option value="11">Nov</option>
            <option value="12">Dec</option>
          </select>
          <input id="year" type="text" name="year" value="" maxlength="4" size="4">
        </td>
      </tr>
      <tr>
        <td> Ascent Rate (m/s): </td>
        <td><input id="ascent" type="text" name="ascent" value="5"></td>
      </tr>
      <tr>
        <td>Burst/Float Altitude (m):</td>
        <td><input id="burst" type="text" name="burst" value="30000"></td>
      </tr>
      <tr>
        <td>Flight Profile:</td>
        <td><select id="flight_profile">
            <option value="standard_profile" selected="selected">Standard</option>
            <option value="float_profile">Float</option>
            <option value="reverse_profile">Reverse (ascent only)</option>
          </select></td>
      </tr>
      <tr>
        <td colspan="2">
          <a id="burst-calc-show" class="tipsyLink" title="Use a calculator to find highlighted values">
                    Use Burst Calculator</a>
        </td>
      </tr>
      <tr>
        <td> Descent Rate (<a class="tipsyLink" title="At sea level">m/s</a>): </td>
        <td><input id="drag" type="text" name="drag" value="5"></td>
      </tr>
      <!--    <tr><td>Display UK NOTAMS &amp; Airspace: </td>
            <td>
        <input id="notam-display" type="checkbox" name="notams" value="notams" />
                <a id="notam-settings-show" class="tipsyLink"
                    title="Advanced NOTAM &amp; Airspace Settings">
                    Advanced</a>
            </td>
        </tr> -->
      <tr>
        <td>Prediction Type (<a class="tipsyLink" title="Information on the hourly/daily prediction functions." href="https://github.com/projecthorus/leaflet_predictor/wiki#using-the-hourlydaily-prediction-functionality" target="_blank">info</a>):
        </td>
        <td><select id="prediction_type">
            <option value="single" selected="selected">Single</option>
            <option value="1_hour">Hourly</option>
            <option value="3_hour">3-Hourly</option>
            <option value="6_hour">6-Hourly</option>
            <option value="12_hour">12-Hourly</option>
            <option value="daily">Daily</option>
          </select></td>
      </tr>
      <tr>
        <td></td>
        <td><input name="submit" id="run_pred_btn" onclick="runPrediction();" value="Run Prediction" class="ui-button ui-corner-all ui-widget" role="button">
        </td>
      </tr>
    </tbody>
  </table>
</form>

Text Content

+−
OSM
ESRI Satellite
OpenTopoMap



50 km
Leaflet | © OpenStreetMap contributors


DEBUG WINDOW

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SCENARIO INFORMATION

Current mouse position: Lat: ? Lon: ?
Range: km, Flight Time:
Cursor range from launch: ?km, land: ?km
Last run at ? UTC using model ?
Pan To | CSV | KML
Show Debug | Hide Launch Card | About
Non-Commercial Use Only. Please read the 'About' page.
The Tawhiri engine is currently experiencing some performance issues. Please be
patient!


SAVE LAUNCH LOCATION


Latitude: Longitude: Altitude: Site Name:


Close this window
Saved Locations
?
Close this window


CAMBRIDGE UNIVERSITY SPACEFLIGHT LANDING PREDICTOR - LEAFLET VERSION (GITHUB)

A tool to predict the flight path and landing location of latex sounding
balloons.

Written by Jon Sowman, Adam Greig and Daniel Richman for CUSF. Credit also to
Rich Wareham for work on the predictor. Some parts of code taken from old
landing prediction software, credit to Rob Anderson, Fergus Noble and Ed Moore.

Work to switch to Leaflet mapping and to use the Tawhiri API by Mark Jessop, for
the SondeHub project. The Sondehub instance of the Tawhiri API is available for
use in non-commercial applications.

This predictor uses data from the NOAA GFS models.

No guarantee is given for the accuracy, precision or reliability of the data
produced by this software, and you use it entirely at your own risk. For more
information, see #highaltitude on libera.chat

This predictor is intended for non-commercial use only. If you are using this
predictor in a commercial setting, please read this page.

Copyright 2013 Cambridge University Space Flight


BURST CALCULATOR

Burst Calculator Web Page

USAGE

This calculator is designed to help you find how much gas to put into a high
altitude balloon to achieve a desired burst altitude or ascent rate. You have to
know the payload mass (including parachute) and balloon mass.

Usage is very straightforward: enter the payload mass into the first box, select
the balloon mass from the second box, and type in either a desired burst
altitude in meters or ascent rate in meters per second in the relevent box.
Pressing enter or clicking away from the box you are typing into will run the
calculations, displaying the results in the box at the bottom.

The 'Constants' box can be used to adjust constants used by the calculator.
These include selecting a type of gas (or entering a custom gas density),
adjusting modelling parameters or entering a custom burst diameter or drag
coefficient for your balloon. Click the tick box next to the burst diameter or
drag coefficient boxes to use a custom value, otherwise the appropriate value
for your selected balloon will be used.

ABOUT

Written by Adam Greig for CUSF in March 2010. Maths derived from `burst1a`
spreadsheet by Steve Randall. Balloon information from Kaymont Totex sounding
balloon data.

No guarantee is given for the accuracy of any data included or produced by this
program, use at your own risk.

Copyright 2010 Cambridge University Space Flight

Burst Calculator


Payload Mass (g) AND Balloon Mass (g) Kaymont - 200 Kaymont - 300 Kaymont - 350
Kaymont - 450 Kaymont - 500 Kaymont - 600 Kaymont - 700 Kaymont - 800 Kaymont -
1000 Kaymont - 1200 Kaymont - 1500 Kaymont - 2000 Kaymont - 3000 Hwoyee - 200
Hwoyee - 300 Hwoyee - 350 Hwoyee - 400 Hwoyee - 500 Hwoyee - 600 Hwoyee - 750
Hwoyee - 800 Hwoyee - 950 Hwoyee - 1000 Hwoyee - 1200 Hwoyee - 1500 Hwoyee -
1600 Hwoyee - 2000 Hwoyee - 3000 PAWAN - 1200     THEN Target Burst Altitude (m)
OR Target Ascent Rate (m/s)     Burst Altitude: 33000 m Ascent Rate: 2.33 m/s
Time to Burst: 236 min Neck Lift: 1733 g Launch Volume: 2.66 m3 2662 L 94.0 ft3


Constants

For advanced use only! You can probably leave these alone.

Gas
Helium Hydrogen Methane Custom
Gas Density (kg/m3)

Air Density (kg/m3)

Air Density Model

Gravitational
Acceleration (m/s2)

Burst Diameter (m)

Balloon Cd



Advanced NOTAM & Airspace Settings

NB This is not yet functional !!!

NOTAM details
Show NOTAMs

Airspace Details
Show Default airspace
Show class A airspace
Show class D airspace
Show class E airspace
Show class G airspace
Show prohibited airspace
Show restricted airspace
Show MATZs
Show danger areas
Show offshore/NOTAMed danger areas
Show hazards (HIRTA/AIAA etc)

Launch Site: Custom AuburnChurchillElsworthAdelaideTullamarineBoston SpaMt
BarkerCookstownPreston St MaryRoss-on-WyeAraratOther Latitude/Longitude:  /  Set
With Map Save Location Launch altitude (m): Launch Time (UTC): : Launch Date:
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ascent Rate (m/s): Burst/Float
Altitude (m): Flight Profile: Standard Float Reverse (ascent only) Use Burst
Calculator Descent Rate (m/s): Prediction Type (info): Single Hourly 3-Hourly
6-Hourly 12-Hourly Daily