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  • Committer: jeff Stys
  • Date: 2013-02-07 16:51:57 UTC
  • mfrom: (786.1.7 jeff-dev)
  • Revision ID: jstys@sesda3.com-20130207165157-08dp5apnp0qiprre
Yohkoh SXT support

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api/index.php
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                <td>STEREO_B</td>
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                <td>STEREO_B (Solar Terrestrial Relations Observatory Behind)</td>
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            </tr>
 
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            <tr>
 
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                <td>Yohkoh</td>
 
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                <td>Yohkoh (SOLAR-A)</td>
 
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            </tr>
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        </table>
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        <br />
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                <td>SECCHI</td>
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                <td>SECCHI (Sun Earth Connection Coronal and Heliospheric Investigation)</td>
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            </tr>
 
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            <tr>
 
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                <td>SXT</td>
 
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                <td>SXT (Soft X-ray Telescope)<td>
 
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            </tr>
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        </table>
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        <br />
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                <td>MDI</td>
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                <td>MDI (The Michelson Doppler Imager)</td>
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            </tr>
 
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            <tr>
 
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                <td>SXT</td>
 
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                <td>SXT (Soft X-ray Telescope)</td>
 
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            </tr>
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        </table>
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        <br />
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                <td>magnetogram</td>
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                <td>Magnetogram</td>
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            </tr>
 
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            <tr>
 
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                <td>AlMgMn</td>
 
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                <td>Al/Mg/Mn filter (2.4 Å - 32 Å pass band)</td>
 
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            </tr>
 
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            <tr>
 
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                <td>thin-Al</td>
 
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                <td>11.6 μm Al filter (2.4 Å - 13 Å pass band)</td>
 
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            </tr>
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        </table>
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        <br />
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        <p>In this case the desired image scale is 2^4 x (natural scale) = 16 x 0.6 = 9.6. Now to determine the ROI coordinates,
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           we must first determine how large the image will be at the specified scale. AIA is normally 4096x4096, so at 1/16 its
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           natural resolution it will be 256x256 pixels. Since the origin is in the middle of the Sun (which here is in the middle
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           of the Sun), there top-left corner is 128 pixels up and to the left (-128, -128), and the bottom-right corner is 128 pixels down and
 
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           of the Sun), the top-left corner is 128 pixels up and to the left (-128, -128), and the bottom-right corner is 128 pixels down and
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           to the right (128, 128). Since the ROI must be specified in arcseconds, and not in pixels, we multiply by the desired imageScale:
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           128 x 9.6 = 1228.8.
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           <br /><br />
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                        <td>1024 x 1024</td>
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                        <td>1.985707</td>
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                    </tr>
 
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                    <tr>
 
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                        <td>Yohkoh SXT (Full)</td>
 
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                        <td>1024 x 1024</td>
 
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                        <td>2.46</td>
 
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                    </tr>
 
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                    <tr>
 
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                        <td>Yohkoh SXT (Half)</td>
 
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                        <td>512 x 512</td>
 
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                        <td>4.92</td>
 
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                    </tr>
 
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                    <tr>
 
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                        <td>Yohkoh SXT (Qrtr)</td>
 
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                        <td>256 x 256</td>
 
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                        <td>9.84</td>
 
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                    </tr>
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                </tbody>
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            </table>
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