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Selecting Pixels for Kepler Downlink

Identifieur interne : 000073 ( PascalFrancis/Checkpoint ); précédent : 000072; suivant : 000074

Selecting Pixels for Kepler Downlink

Auteurs : Stephen T. Bryson [États-Unis] ; Jon M. Jenkins [États-Unis] ; Todd C. Klaus [États-Unis] ; Miles T. Cote [États-Unis] ; Elisa V. Quintana [États-Unis] ; Jennifer R. Hall [États-Unis] ; Khadeejah Ibrahim [États-Unis] ; Hema Chandrasekaran [États-Unis] ; Douglas A. Caldwell [États-Unis] ; Jeffrey E. Van Cleve [États-Unis] ; Michael R. Haas [États-Unis]

Source :

RBID : Pascal:11-0006805

Descripteurs français

English descriptors

Abstract

The Kepler mission monitors ˜ 165, 000 stellar targets using 42 2200 x 1024 pixel CCDs. Onboard storage and bandwidth constraints prevent the storage and downlink of all 96 million pixels per 30-minute cadence, so the Kepler spacecraft downlinks a specified collection of pixels for each target. These pixels are selected by considering the object brightness, background and the signal-to-noise in each pixel, and maximizing the signal-to-noise ratio of the target. This paper describes pixel selection, creation of spacecraft apertures that efficiently capture selected pixels, and aperture assignment to a target. Engineering apertures, short-cadence targets and custom-specified shapes are discussed.


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Pascal:11-0006805

Le document en format XML

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<s2>21760</s2>
<s5>354000174702880460</s5>
</fA43>
<fA44>
<s0>0000</s0>
<s1>© 2011 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>13 ref.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>11-0006805</s0>
</fA47>
<fA60>
<s1>P</s1>
<s2>C</s2>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>Proceedings of SPIE, the International Society for Optical Engineering</s0>
</fA64>
<fA66 i1="01">
<s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>The Kepler mission monitors ˜ 165, 000 stellar targets using 42 2200 x 1024 pixel CCDs. Onboard storage and bandwidth constraints prevent the storage and downlink of all 96 million pixels per 30-minute cadence, so the Kepler spacecraft downlinks a specified collection of pixels for each target. These pixels are selected by considering the object brightness, background and the signal-to-noise in each pixel, and maximizing the signal-to-noise ratio of the target. This paper describes pixel selection, creation of spacecraft apertures that efficiently capture selected pixels, and aperture assignment to a target. Engineering apertures, short-cadence targets and custom-specified shapes are discussed.</s0>
</fC01>
<fC02 i1="01" i2="X">
<s0>001D02C03</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE">
<s0>Largeur bande</s0>
<s5>06</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG">
<s0>Bandwidth</s0>
<s5>06</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA">
<s0>Anchura banda</s0>
<s5>06</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE">
<s0>Spationef</s0>
<s5>18</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG">
<s0>Spacecraft</s0>
<s5>18</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA">
<s0>Vehículo espacial</s0>
<s5>18</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE">
<s0>Brillance</s0>
<s5>19</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG">
<s0>Brightness</s0>
<s5>19</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA">
<s0>Brillantez</s0>
<s5>19</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE">
<s0>Rapport signal bruit</s0>
<s5>23</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG">
<s0>Signal to noise ratio</s0>
<s5>23</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA">
<s0>Relación señal ruido</s0>
<s5>23</s5>
</fC03>
<fN21>
<s1>003</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
</fN44>
<fN82>
<s1>OTO</s1>
</fN82>
</pA>
<pR>
<fA30 i1="01" i2="1" l="ENG">
<s1>Software and cyberinfrastructure for astronomy</s1>
<s3>San Diego CA USA</s3>
<s4>2010</s4>
</fA30>
</pR>
</standard>
</inist>
<affiliations>
<list>
<country>
<li>États-Unis</li>
</country>
<region>
<li>Californie</li>
</region>
</list>
<tree>
<country name="États-Unis">
<region name="Californie">
<name sortKey="Bryson, Stephen T" sort="Bryson, Stephen T" uniqKey="Bryson S" first="Stephen T." last="Bryson">Stephen T. Bryson</name>
</region>
<name sortKey="Caldwell, Douglas A" sort="Caldwell, Douglas A" uniqKey="Caldwell D" first="Douglas A." last="Caldwell">Douglas A. Caldwell</name>
<name sortKey="Chandrasekaran, Hema" sort="Chandrasekaran, Hema" uniqKey="Chandrasekaran H" first="Hema" last="Chandrasekaran">Hema Chandrasekaran</name>
<name sortKey="Cote, Miles T" sort="Cote, Miles T" uniqKey="Cote M" first="Miles T." last="Cote">Miles T. Cote</name>
<name sortKey="Haas, Michael R" sort="Haas, Michael R" uniqKey="Haas M" first="Michael R." last="Haas">Michael R. Haas</name>
<name sortKey="Hall, Jennifer R" sort="Hall, Jennifer R" uniqKey="Hall J" first="Jennifer R." last="Hall">Jennifer R. Hall</name>
<name sortKey="Ibrahim, Khadeejah" sort="Ibrahim, Khadeejah" uniqKey="Ibrahim K" first="Khadeejah" last="Ibrahim">Khadeejah Ibrahim</name>
<name sortKey="Jenkins, Jon M" sort="Jenkins, Jon M" uniqKey="Jenkins J" first="Jon M." last="Jenkins">Jon M. Jenkins</name>
<name sortKey="Klaus, Todd C" sort="Klaus, Todd C" uniqKey="Klaus T" first="Todd C." last="Klaus">Todd C. Klaus</name>
<name sortKey="Quintana, Elisa V" sort="Quintana, Elisa V" uniqKey="Quintana E" first="Elisa V." last="Quintana">Elisa V. Quintana</name>
<name sortKey="Van Cleve, Jeffrey E" sort="Van Cleve, Jeffrey E" uniqKey="Van Cleve J" first="Jeffrey E." last="Van Cleve">Jeffrey E. Van Cleve</name>
</country>
</tree>
</affiliations>
</record>

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