MOPEX User's Guide - IRSA

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MOPEX User’s Guide The module estimates the pixel uncertainty for each pixel in the image using the following model: σ = σ 2 readnoise g 2 + σ 2 confusion g 2 + I g , Equation 6.2 where the parameters Read Noise σreadnoise, Gain g, and Confusion Sigma σconfusion are specified in the module settings. The last term is the Poisson noise determined by the pixel value, I. The units of Read Noise and Confusion Sigma here are electrons. The module is designed to work with the images in DN units. If you are working with the images in units of surface brightness (MJy/sr; i.e. all Spitzer BCDs) then the Gain should include the conversion factor from surface brightness units to electrons (see the INPUT for this module). The product of this step is the uncertainty images. 6.5.5 APEX Modules: Fiducial Image Frame Command Line Equivalent: run_fiducial_image_frame Default Output Directory: De pe nds On: Initial Settings; APEX Settings Relevant Pipelines: APEX Multiframe; APEX User List Multiframe Important Notes: Running this module will overwrite any pre-existing FIF.tbl file in the output directory. If you are working with MIPS images and plan to use the Mosaic PRFs the n please see the Discussion below for important information. If you are using the mosaic.fits file from a pre-pended Mosaic pipeline as input into APEX then you should omit this module. PURPOSE Point Source Extraction (APEX) 116 APEX Modules
MOPEX User’s Guide This module creates a unified grid coordinate system and defines the spatial boundaries that will inc lude all BCD images. The output FIF table is required for later modules to run. It can be generated by this module, or set as an input using a pre-existing table. If you have appended your APEX pipeline to a Mosaic pipeline then you can omit this module; APEX will automatically use the Mosaic FIF table. INPUT Edge Padding: (int) This number specifies how much extra space (arcseconds) will be added to the four edges of the final mosaicked image. Projection: This parameter specifies the projection type of the output mosaic. The TAN and SIN projections are implemented using the fast direct plane-to-plane coordinate transformation. The rest of the projections in the WCS library - LIN, AZP, STG, ARC, ZPN, ZEA, AIR, CYP, CAR, MER, CEA, COP, COD, COE, COO, BON, PCO, GLS, PAR, AIT, MOL, CSC, QSC, TSC, NCP, DSS, PLT, TNX - are implemented as a two step plane-skyplane projection. The default projection is TAN. Coordinate Sys te m: The coordinate system of the output mosaic. The choices are J2000 (Equatorial), Galactic, or Ecliptic. The default is J2000. Use average input orientation: Defines the orientation of the output mosaic. Checking this box indicates that MOPEX should use the average of the input BCD orientations. This is the default setting. To specify an alternative orientation, see CROTA2. CROTA2: (float) Defines the orientation (degrees East of North) of the output mosaic. CROTA2 = 0 indicates North up and East left. To use the average of the input BCD orientations (the default), check the Use average input orientation box. COMMAND LINE INPUT &FIDUCIALIMAGEFRAMEIN Edge_Padding = 10, Projection_Type = "TAN", Coordinate_System = "J2000", CROTA2 = A, &END In Global Parameters: MARGIN = 0 Point Source Extraction (APEX) 117 APEX Modules
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MOPEX User’s Guide MOsaicking and
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MOPEX User’s Guide Chapter 4. Ove
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MOPEX User’s Guide 7.4 PRF Estima
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Chapter 1. Introduction MOPEX User
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MOPEX User’s Guide • If you are
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for Linux and Solaris systems, and:
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Chapter 2. Overview of MOPEX MOPEX
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For instructions on how to run MOPE
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2.3.1 Additional Functionality MOPE
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MOPEX User’s Guide mosaic_mask.pl
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MOPEX User’s Guide Choosing the r
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MOPEX User’s Guide photometry), o
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Chapter 3. MOPEX Input MOPEX User
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3.2 MOPEX Input List Files MOPEX Us
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Chapter 4. Overlap (overlap.pl) MOP
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MOPEX User’s Guide 3. Background
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MOPEX User’s Guide Output Directo
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ncpu_multiprocess = 1 default = 1 I
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4.3.3 Overlap Modules: S/N Estimato
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σ = σ 2 readnoise g 2 + σ 2 conf
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MOPEX User’s Guide Generated Head
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OUTPUT MOPEX User’s Guide Generat
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OUTPUT MOPEX User’s Guide Generat
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MOPEX User’s Guide When choosing
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MOPEX User’s Guide offsets and th
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Chapter 5. Mosaicking (mosaic.pl) M
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MOPEX User’s Guide They do not ne
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MOPEX User’s Guide interpolated u
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MOPEX User’s Guide more informati
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MOPEX User’s Guide Pixel by Size:
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OUTPUT None DISCUSSION MOPEX User
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MOPEX User’s Guide This module al
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MOPEX User’s Guide negative numbe
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DISCUSSION MOPEX User’s Guide For
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MOPEX User’s Guide then interpola
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MOPEX User’s Guide 3. Outlier Rej
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PURPOSE MOPEX User’s Guide Set up
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MOPEX User’s Guide Most users wil
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DISCUSSION MOPEX User’s Guide Wit
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7.5.5 PRF Estimate Modules: Split B
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MOPEX User’s Guide Fit Seed: (int
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Chapter 8. Basic Concepts in MOPEX
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8.2 Outlier Detection MOPEX User’
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MOPEX User’s Guide Figure 8.3: An
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MOPEX User’s Guide Two ways to es
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MOPEX User’s Guide USE_DUAL_OUTLI
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MOPEX User’s Guide Figure 8.9: As
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MOPEX User’s Guide Important: Usi
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MOPEX User’s Guide Figure 8.12: T
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8.3.2 Thresholding MOPEX User’s G
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T cl = P min − T min SegLevel MOP
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Centroid _ X = ∑ i∈cluster X(i)
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MOPEX User’s Guide where IPi is t
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MOPEX User’s Guide Figure 8.18: T
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8.4.5 Cubic: Bicubic Interpolation
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z n = ∑ r(r≠n ) Onr(I n − Ir
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MOPEX User’s Guide the parameter
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MOPEX User’s Guide Figure 8.22: P
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MOPEX User’s Guide that resembles
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∑ AP = a i ⋅ I i MOPEX User’s
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MOPEX User’s Guide In particular
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8.9.3 Aperture Uncertainties MOPEX
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MOPEX User’s Guide e.g. if you wi
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MOPEX User’s Guide In order to ru
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MOPEX User’s Guide from the GUI,
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9.4.2.1 Input Files and Output Dire
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MOPEX User’s Guide Table 9.1: Lis
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9.7.2 APEX User List Multiframe (ap
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9.7.4 Single-frame mode (apex_1fram
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MOPEX User’s Guide Table 9.6: Lis
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Appendix A. Full List of MOPEX Scri
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A.1.3 Under Construction Running MO
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Appendix B. Full List of Modules in
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Mosaic Interpolate run_mosaic_int P
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Running MOPEX on the Command Line a
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B.5 PRF Estimate Modules Running MO
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Instrument PRF Samp c Norm Radius (
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Some Tips for MOPEX with Spitzer Da
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