Difference: StewartBoogertPhotometry20161028 (1 vs. 2)

Revision 227 Oct 2016 - AaronAndrews

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META TOPICPARENT name="StewartBoogertPhotometry2016"
-- AaronAndrews - 25 Oct 2016
Line: 9 to 9
 
    • Generate stars in fiducial volume around frame.
    • Generate full size star field (1530x1020), use uniform randomised values for all star variables (positions, fluxes, sigmas, correlation).
  • Laura:
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Weekly Progress:

Anisha:

Aaron:

  • Simulation code: Simulation_test6.py.txt
  • Added generation of background to simulation. Assumed background values follow gaussian distribution - Python has a random gaussian generator with mean and S.D. as inputs.
  • Stars can be generated outside of image frame (up to 15 pixels from edge).
  • Randomly generated star parameters can be saved in text files.

  • Generated a full-size star field, making estimates for some values/ranges for a 10 second exposure, and maximum signal/background ~2.
  • Properties:
    • Size: 1530x1020
    • Stars in frame: 50
    • Background mean: 918.23
    • Background S.D.: 23.06
  • Random parameter ranges (uniformly distributed):
    • Peak x position: [-15,1544]
    • Peak y position: [-15,1034]
    • Sigma_x: [3,6]
    • Sigma_y: [3,6]
    • Rho: [-0.5,0.5]
    • Peak value: [0,2000]
  • RandStarField1a.png
  • Star parameters: RandStarField1a.txt
  • Alternative generation, estimating 300 second exposure, maximum s/b~60:
    • Background mean: 941.43
    • Background S.D.: 234.76
    • Peak value range: [0,60000]
  • RandStarField1b.png
  • Star Parameters: RandStarField1b.txt

Laura:

META FILEATTACHMENT attachment="RandStarField1a.png" attr="" comment="Random star field simulation, estimating 10 second exposure" date="1477560840" name="RandStarField1a.png" path="RandStarField1a.png" size="147189" user="zyva010" version="2"
META FILEATTACHMENT attachment="RandStarField1b.png" attr="" comment="Random star field simulation, estimating 300 second exposure" date="1477560852" name="RandStarField1b.png" path="RandStarField1b.png" size="111009" user="zyva010" version="2"
META FILEATTACHMENT attachment="Simulation_test6.py.txt" attr="" comment="Simulation test 6 code" date="1477558389" name="Simulation_test6.py.txt" path="Simulation_test6.py" size="11169" user="zyva010" version="1"
META FILEATTACHMENT attachment="RandStarField1a.txt" attr="" comment="Generated star parameters for random star field 1a" date="1477558604" name="RandStarField1a.txt" path="RandStarField1a.txt" size="5543" user="zyva010" version="1"
META FILEATTACHMENT attachment="RandStarField1b.txt" attr="" comment="Generated star parameters for random star field 1b" date="1477558622" name="RandStarField1b.txt" path="RandStarField1b.txt" size="5536" user="zyva010" version="1"

Revision 125 Oct 2016 - AaronAndrews

Line: 1 to 1
Added:
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META TOPICPARENT name="StewartBoogertPhotometry2016"
-- AaronAndrews - 25 Oct 2016

To do by Friday:

  • Anisha:
  • Aaron:
    • Simulate background.
    • Generate stars in fiducial volume around frame.
    • Generate full size star field (1530x1020), use uniform randomised values for all star variables (positions, fluxes, sigmas, correlation).
  • Laura:
 
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