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<caption><strong> Space view perspective or orthographic </strong></caption>
<tbody>
<tr>
<th> Element </th>
<th> Contents </th>
<th style="vertical-align: top; text-align: center;">
GRIB API keys<br>
</th>
</tr>
<tr>
<td> 1 </td>
<td> Data representation type (see <a
href="/publications/manuals/d/gribapi/fm92/grib1/show/ctables/">WMO
code table 6</a>); = 90. </td>
<th style="vertical-align: top; text-align: left;"><a href="/publications/manuals/d/gribapi/keys/grids/">gridType</a>
</th>
</tr>
<tr>
<td> 2 </td>
<td> Number of points along the x-axis. </td>
<th style="vertical-align: top; text-align: left;">Nx<br>Ni
</th>
</tr>
<tr>
<td> 3 </td>
<td> Number of points along the y-axis. </td>
<th style="vertical-align: top; text-align: left;">Ny<br>Nj
</th>
</tr>
<tr>
<td> 4 </td>
<td> Latitude of the sub-satellite point. </td>
<th style="vertical-align: top; text-align: left;">latitudeOfSubSatellitePointInDegrees*1000<br>
</th>
</tr>
<tr>
<td> 5 </td>
<td> Longitude of the sub-satellite point. </td>
<th style="vertical-align: top; text-align: left;">longitudeOfSubSatellitePointInDegrees*1000<br>
</th>
</tr>
<tr>
<td> 6 </td>
<td>
<pre>Resolution flag:<br> 0 Direction increments are not given.<br> 128 Direction increments are given.<br></pre>
</td>
<th style="vertical-align: top; text-align: left;">ijDirectionIncrementGiven*128
</th>
</tr>
<tr>
<td> 7 </td>
<td> Apparent diameter of the Earth in grid lengths in x
direction. </td>
<th style="vertical-align: top; text-align: left;">apparentDiameterOfEarthInGridLengthsInXDirection<br>
</th>
</tr>
<tr>
<td> 8 </td>
<td> Apparent diameter of the Earth in grid lengths in y
direction. </td>
<th style="vertical-align: top; text-align: left;">apparentDiameterOfEarthInGridLengthsInYDirection<br>
</th>
</tr>
<tr>
<td> 9 </td>
<td> X-coordinate of the sub-satellite point. </td>
<th style="vertical-align: top; text-align: left;">xCoordinateOfSubSatellitePoint<br>
</th>
</tr>
<tr>
<td> 10 </td>
<td> Y-coordinate of the sub-satellite point. </td>
<th style="vertical-align: top; text-align: left;">yCoordinateOfSubSatellitePoint<br>
</th>
</tr>
<tr>
<td> 11 </td>
<td> Scanning mode flag (see <a
href="/publications/manuals/d/gribapi/fm92/grib1/show/ctables/">WMO
code table 8</a>). </td>
<th style="vertical-align: top; text-align: left;">
<p>iScansNegatively</p>
<p>jScansNegatively</p>
<p>jPointsAreConsecutive</p>
</th>
</tr>
<tr>
<td> 12 </td>
<td> Number of vertical coordinate parameters. </td>
<th style="vertical-align: top; text-align: left;">NV<br>
</th>
</tr>
<tr>
<td> 13 </td>
<td> The orientation of the grid. </td>
<th style="vertical-align: top; text-align: left;">orientationOfTheGridInDegrees*1000<br>
</th>
</tr>
<tr>
<td> 14 </td>
<td> Altitude of the camera from the Earth's centre divided
by the Earth's radius and scaled by 10**6 to give an integer value.
Currently = 6610839 for Meteosat. For orthographic view from infinite
distance, the value is 16777215. </td>
<th style="vertical-align: top; text-align: left;">altitudeOfTheCameraFromTheEarthSCenterMeasuredInUnitsOfTheEarth<br>
</th>
</tr>
<tr>
<td> 15 </td>
<td> X coordinate of the origin of the sector image. </td>
<th style="vertical-align: top; text-align: left;">xCoordinateOfOriginOfSectorImage<br>
</th>
</tr>
<tr>
<td> 16 </td>
<td> Y coordinate of the origin of the sector image. </td>
<th style="vertical-align: top; text-align: left;">yCoordinateOfOriginOfSectorImage<br>
</th>
</tr>
<tr>
<td> 17 </td>
<td> 0 Regular grid. </td>
<th style="vertical-align: top; text-align: left;"><a href="/publications/manuals/d/gribapi/keys/grids/">gridType</a>
</th>
</tr>
<tr>
<td> 18 </td>
<td>
<pre>Earth flag:<br> 0 Earth assumed spherical with radius 6367.47 km.<br> 64 Earth assumed oblate spheroidal with size as determined by IAU in 1965:<br> 6378.160km, 6356.775km, f=1/297.0<br></pre>
</td>
<th style="vertical-align: top; text-align: left;">earthIsOblate
</th>
</tr>
<tr>
<td> 19 </td>
<td>
<pre>Components flag:<br> 0 Resolved u and v components of vector quantities relative to easterly<br> and northerly directions.<br> 8 Resolved u and v components of vector quantities relative to the<br> defined grid in the direction of increasing x and y (or i and j)<br> coordinates. <br></pre>
</td>
<th style="vertical-align: top; text-align: left;">uvRelativeToGrid
</th>
</tr>
<tr>
<td> 20-22 </td>
<td> Reserved. Set to 0. </td>
<th style="vertical-align: top; text-align: left;"><br>
</th>
</tr>
</tbody>
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