Difference: CadenceQuickReference (1 vs. 5)

Revision 52017-02-17 - EricBellm

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META TOPICPARENT name="CadenceStudy"

Cadence Quick Reference

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  The footprint for the Galactic Plane Survey is the strip of fields within +/- 6 degrees of b=0 (and North of ~Dec -25 or so, TBD). Whenever a field in this footprint is up (e.g., above airmass 2 for > 1 hour), observe it every night, once in g and once in r separated by at least 40 minutes.
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>		The amount of Plane area satisfying this critereon ranges seasonally from about 1000 to about 2000 square degrees.
 

Weather and Observing Time

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>		The total observing time per night between 12 degree twilight and 12 degree dawn ranges from 7.6 - 12.2 hours per night (solstice to solstice).
 With weather losses, the average total P48 observing time throughout the year is about 5.75 hours per night, with only modest seasonal variations--the longer winter nights are balanced by poorer weather.

Detailed weather data is available in the survey simulator; see here for a visualization. \ No newline at end of file

Revision 42017-02-02 - EricBellm

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META TOPICPARENT name="CadenceStudy"

Cadence Quick Reference

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  • Areal survey speed: 3760 deg^2 hr^-1
  • Expected fiducial median single-exposure depth: 20.5 mag AB (5 sigma)
  • Expected modal image quality: 2.0 arcsec FWHM (r band), 2.2 arcsec FWHM (g band)
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  • Southernmost dec (center of field of view): ~ -28 deg south (driven by PS1 coverage)
 

Partnership split

Revision 32017-01-25 - EricBellm

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META TOPICPARENT name="CadenceStudy"

Cadence Quick Reference

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>		Here is a high-level summary of the ZTF survey parameters for reference. Some parameters are estimates and will be improved as our simulation effort continues.
 

Basic Parameters

  • Camera field of view: 47 deg^2
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MSIP Survey parameters

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>		These are the MSIP surveys specified by Shri for the initial 1-1.5 years of the survey.
 

Celestial Cinematography/Northern Sky Survey

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>		This is a three-night cadence survey of the Northern Sky.

The survey footprint will be a large fraction of the visible sky, irrespective of Galactic latitude. The Northern boundary will be Dec +90. The southern boundary will set the survey extent and is TBD; it may vary slightly by season. Reasonable ranges may be ~15-30 degrees S. We expect to be able to survey somewhere between 15k-20k square degrees over three nights.

  Each night a field is visited, take one g and one r exposure separated by at least 40 minutes.

Galactic Plane Survey

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>		The footprint for the Galactic Plane Survey is the strip of fields within +/- 6 degrees of b=0 (and North of ~Dec -25 or so, TBD). Whenever a field in this footprint is up (e.g., above airmass 2 for > 1 hour), observe it every night, once in g and once in r separated by at least 40 minutes.
 

Weather and Observing Time

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>		With weather losses, the average total P48 observing time throughout the year is about 5.75 hours per night, with only modest seasonal variations--the longer winter nights are balanced by poorer weather.
  Detailed weather data is available in the survey simulator; see here for a visualization.

Revision 22017-01-23 - EricBellm

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META TOPICPARENT name="CadenceStudy"

Cadence Quick Reference

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MSIP Survey parameters

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>

Celestial Cinematography/Northern Sky Survey

Each night a field is visited, take one g and one r exposure separated by at least 40 minutes.

Galactic Plane Survey

 

Weather and Observing Time

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>

Detailed weather data is available in the survey simulator; see here for a visualization.

Revision 12017-01-23 - EricBellm

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Added:
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META TOPICPARENT name="CadenceStudy"

Cadence Quick Reference

Basic Parameters

  • Camera field of view: 47 deg^2
  • Exposure length: 30 seconds
  • Expected average time between exposures: 15 seconds
  • Areal survey speed: 3760 deg^2 hr^-1
  • Expected fiducial median single-exposure depth: 20.5 mag AB (5 sigma)
  • Expected modal image quality: 2.0 arcsec FWHM (r band), 2.2 arcsec FWHM (g band)

Partnership split

  • 40% public MSIP surveys
  • 40% private collaboration surveys
  • 20% allocated by Caltech TAC

MSIP Survey parameters

Weather and Observing Time

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