MOPEX User's Guide - IRSA

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MOPEX User’s Guide Create Median Mosaic: If checked, a quicklook mosaic is created using the median of each interpolated pixel in the stack. Flux is not conse rved. COMMAND LINE INPUT &MOSAICCOADDIN TILEMAX_X = 1000, TILEMAX_Y = 1000, INTEG_TIME_KWD = ‘EXPTIME’, &END In Global Parameters: COADDER_DIR = Coadd-mosaic keep_coadded_tiles = 1 sigma_weighted_coadd = 0 create_unc_mosaic = 1 create_std_mosaic = 0 create_outlier_mosaic = 1 create_dual_outlier_mosaic = 1 run_median_mosaic = 0 INTEG_TIME_KWD: This is the equivalent of checking the Integration Time Weighted Coadd box in the GUI. If INTEG_TIME_KWD = ‘EXPTIME’ is set in the parameter block, intergration time weighted coadd will be used. OUTPUT Tile BCD file (coadd_tile_bcd.txt): This text file lists the input images which contribute to each output tile. The format of the file is the tile ID, the number of contributing images, and the image index within the stack. Tile table (coadd_tiles.tbl): A table listing the tiles, their sizes, and their offsets in the x- and y-directions with respect to the FIF. Tile uncertainty list (coadd_Tile_*_Unc.fits): The stack of tiled uncertainty images. Mosaic uncertainty file (coadd_Tile_*_Std_Unc.fits): The stack of tiled standard deviation images. Mosaicking (mosaic.pl) 86 Mosaic Modules
MOPEX User’s Guide The tile specification files corresponding to the other optional mosaics requested in the Global Parameters section of the namelist (e.g. the outlier mosaic) are created by the next module, Mosaic Combine, but are written to the output mosaic directories (e.g. Outliermosaic/). DISCUSSION The co-addition can be performed on Tiles (see §8.1), to address computer memory considerations. The Mosaic CoAdder module performs the co-addition on the individual tiles, and the Mosaic Combine module then combines the tiles into a single mosaic. Even if only a single tile is used, Mosaic Combine still needs to be run, in order to produce the expected products. There are several weighting schemes available. The interpolated images are normally combined using straight averaging. Exposure time weighting is also available. The co-added uncertainty image is computed regardless of whether interpolated uncertainty images are used for weighting, as long as the uncertainty images are given as an input to the program. The coverage mosaic is always the number of good pixels in the final stack. The total exposure time for a pixel (when time-weighting) is not available as a mosaic, but can be found per tile in the output_dir/Coadd-mosaic directory. (If there's only one tile, it is like the final mosaic.) Straight Average: (default) If none of the weighting alternatives are selected, then the coadded pixel value O is given by the following expression: O = ∑ j c j I j Mosaicking (mosaic.pl) 87 Mosaic Modules C Equation 5.5 Here Ij is the value of the interpolated pixel in image j, and cj is the pixel value of the corresponding coverage map. Co-added uncertainty U = W-1 is given by the following expression:
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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 pixels set to
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MOPEX User’s Guide This module co
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MOPEX User’s Guide is recorded as
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&END OUTPUT MOPEX User’s Guide Th
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INPUT Columns selection: MOPEX User
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PURPOSE MOPEX User’s Guide Fits t
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MOPEX User’s Guide given below. O
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6.5.19 APEX Modules: Aperture Photo
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MOPEX User’s Guide This module al
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Condition Builder: Some simple sele
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MOPEX User’s Guide Fatal Mask Bit
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MOPEX User’s Guide Pixel by Size:
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MOPEX User’s Guide Mosaic PRF Fil
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PRF_ResampleX_Factor = 100, PRF_Res
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7.3 Running PRF Estimate MOPEX User
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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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MOPEX User's Guide - IRSA

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