MOPEX User's Guide - IRSA

More documents

Recommendations

Info

Generated Star file: The corresponding Star file. MOPEX User’s Guide Generated Status List file: Lists whether each input postage stamp image was included in the final stack and, if not, the reason it was rejected. NOTE: If the Split By Array Position module is turned on, the output files will be replicated for each region of the PRF Map. The output file names will have have _i appended to them for the i th region, and the GUI will label the output with PRF#i. DISCUSSION This module combines the postage stamps into the final PRF. The postage stamps are resampled and shifted to the common grid using bicubic interpolation. The stack is combined using a simple mean, and the standard deviation is found for each pixel position. During the processing, a variety of outlier rejection tests are applied to each point source image (see §7.4). Only those that pass each test are included in the final stack. The output status file describes the fate of each postage stamp. In addition to outlier rejection, the module replaces each NaN in the input image with the median of a number of the neighboring pixels. If Reject NaNs is greater than 0, then bad pixels are only replaced if their number is less than or equal to Reject NaNs. Otherwise the image is excluded from the list of images to be used for PRF estimation. Another reason for rejecting an image is if a NaN pixel is found in the center of the input image. The size of the center is specified with the namelist parameters Center Box X(Y), both defaulting to 7. PRF Estimate 178 PRF Estimate Modules
Chapter 8. Basic Concepts in MOPEX MOPEX User’s Guide There are a number of basic concepts in MOPEX that are repeatedly used by a number of modules. This section describes the following: • Tiling • Outlier Detection • Single Frame Outlier Detection • Multiframe Temporal Outlier Detection • Dual Outlier Detection • Box Outlier Detection • Image Segmentation • Image Interpolation • Background Matching Algorithm • PRF fitting in MOPEX • The Spitzer Point Reponse Function (PRF) • Aperture Photometry • Uncertainty Estimation • User List Creation for APEX 8.1 Tiling There is no precise limit to the size of a mosaic that MOPEX will produce. However, large datasets may encounter computer memory limitations, so most MOPEX modules employ Tiles to reduce the number of pixels that need to be considered at one time. Tiles are subsections of the final mosaic image. The size of tiles is set by the user, based on the computer memory considerations. It should be small enough so that all input images overlapping one tile can be held in memory without swapping. MOPEX first produces the tiles for each final mosaic image with the tile sizes specified by the user. Then all the tiles are glued together into a single mosaic image by the Mosaic Combine module. The first step is estimation of the tile geometry. The interpolated and co-added images are defined on the same Fiducial Image Frame (FIF; see e.g. §4.3.4). The suggested tile sizes in the x- and y- directions Tile Max X and Tile Max Y are parameters in a number of modules. If both FIF dimensions NAXIS1 and NAXIS2 are smaller than Tile Max X and Tile Max Y, correspondingly, then there is only one output co-added image. Basic Concepts in MOPEX 179 Tiling
Page 1 and 2:
MOPEX User’s Guide MOsaicking and
Page 3 and 4:
MOPEX User’s Guide Chapter 4. Ove
Page 5 and 6:
MOPEX User’s Guide 7.4 PRF Estima
Page 7 and 8:
Chapter 1. Introduction MOPEX User
Page 9 and 10:
MOPEX User’s Guide • If you are
Page 11 and 12:
for Linux and Solaris systems, and:
Page 13 and 14:
Chapter 2. Overview of MOPEX MOPEX
Page 15 and 16:
For instructions on how to run MOPE
Page 17 and 18:
2.3.1 Additional Functionality MOPE
Page 19 and 20:
MOPEX User’s Guide mosaic_mask.pl
Page 21 and 22:
MOPEX User’s Guide Choosing the r
Page 23 and 24:
MOPEX User’s Guide photometry), o
Page 25 and 26:
Chapter 3. MOPEX Input MOPEX User
Page 27 and 28:
3.2 MOPEX Input List Files MOPEX Us
Page 29 and 30:
Chapter 4. Overlap (overlap.pl) MOP
Page 31 and 32:
MOPEX User’s Guide 3. Background
Page 33 and 34:
MOPEX User’s Guide Output Directo
Page 35 and 36:
ncpu_multiprocess = 1 default = 1 I
Page 37 and 38:
4.3.3 Overlap Modules: S/N Estimato
Page 39 and 40:
σ = σ 2 readnoise g 2 + σ 2 conf
Page 41 and 42:
MOPEX User’s Guide Generated Head
Page 43 and 44:
OUTPUT MOPEX User’s Guide Generat
Page 45 and 46:
OUTPUT MOPEX User’s Guide Generat
Page 47 and 48:
MOPEX User’s Guide When choosing
Page 49 and 50:
MOPEX User’s Guide offsets and th
Page 51 and 52:
Chapter 5. Mosaicking (mosaic.pl) M
Page 53 and 54:
MOPEX User’s Guide They do not ne
Page 55 and 56:
MOPEX User’s Guide interpolated u
Page 57 and 58:
MOPEX User’s Guide more informati
Page 59 and 60:
MOPEX User’s Guide Pixel by Size:
Page 61 and 62:
OUTPUT None DISCUSSION MOPEX User
Page 63 and 64:
MOPEX User’s Guide This module al
Page 65 and 66:
MOPEX User’s Guide negative numbe
Page 67 and 68:
DISCUSSION MOPEX User’s Guide For
Page 69 and 70:
MOPEX User’s Guide then interpola
Page 71 and 72:
MOPEX User’s Guide This module pe
Page 73 and 74:
DISCUSSION MOPEX User’s Guide Mos
Page 75 and 76:
PURPOSE MOPEX User’s Guide This m
Page 77 and 78:
DISCUSSION No further information.
Page 79 and 80:
MOPEX User’s Guide processed in o
Page 81 and 82:
MOPEX User’s Guide Min Pix Number
Page 83 and 84:
MOPEX User’s Guide Box Median Bia
Page 85 and 86:
MOPEX User’s Guide If coverage >=
Page 87 and 88:
MOPEX User’s Guide Refine Outlier
Page 89 and 90:
MOPEX User’s Guide Reinterpolatio
Page 91 and 92:
PURPOSE MOPEX User’s Guide The in
Page 93 and 94:
MOPEX User’s Guide The tile speci
Page 95 and 96:
MOPEX User’s Guide Standard Devia
Page 97 and 98:
Mosaic Coverage File (mosaic_cov.fi
Page 99 and 100:
There are no user-defined input par
Page 101 and 102:
COMMAND LINE INPUT See INPUT. OUTPU
Page 103 and 104:
MOPEX User’s Guide limitations di
Page 105 and 106:
6.3 Running APEX MOPEX User’s Gui
Page 107 and 108:
MOPEX User’s Guide Point Source D
Page 109 and 110:
Figure 6.1: Overview of the main pr
Page 111 and 112:
Relevant Pipelines: All PURPOSE INP
Page 113 and 114:
NICE = 1 save_namelist = 1 MOPEX Us
Page 115 and 116:
MOPEX User’s Guide Mosaic PRF Fil
Page 117 and 118:
create_unc_mosaic = 1 use_std_to_de
Page 119 and 120:
MOPEX User’s Guide Use Refined Po
Page 121 and 122:
MOPEX User’s Guide Here FLUXCONV
Page 123 and 124:
MOPEX User’s Guide This module cr
Page 125 and 126:
MOPEX User’s Guide year) and with
Page 127 and 128:
MOPEX User’s Guide Mosaic FIF Tab
Page 129 and 130:
MOPEX User’s Guide Tile BCD file
Page 131 and 132:
MOPEX User’s Guide Window X, Y: (
Page 133 and 134: MOPEX User’s Guide neighboring pi
Page 135 and 136: ⎛ ⎜ ⎜ P( j) = ⎜ 1+ ⎜ ⎜
Page 137 and 138: &END MOPEX User’s Guide if use_ps
Page 139 and 140: MOPEX User’s Guide \float Tile_Of
Page 141 and 142: MOPEX User’s Guide Input Type: De
Page 143 and 144: MOPEX User’s Guide pixels set to
Page 145 and 146: MOPEX User’s Guide This module co
Page 147 and 148: MOPEX User’s Guide is recorded as
Page 149 and 150: &END OUTPUT MOPEX User’s Guide Th
Page 151 and 152: INPUT Columns selection: MOPEX User
Page 153 and 154: PURPOSE MOPEX User’s Guide Fits t
Page 155 and 156: MOPEX User’s Guide given below. O
Page 157 and 158: 6.5.19 APEX Modules: Aperture Photo
Page 159 and 160: MOPEX User’s Guide This module al
Page 161 and 162: Condition Builder: Some simple sele
Page 163 and 164: MOPEX User’s Guide Fatal Mask Bit
Page 165 and 166: MOPEX User’s Guide Pixel by Size:
Page 167 and 168: MOPEX User’s Guide Mosaic PRF Fil
Page 169 and 170: PRF_ResampleX_Factor = 100, PRF_Res
Page 171 and 172: 7.3 Running PRF Estimate MOPEX User
Page 173 and 174: MOPEX User’s Guide 3. Outlier Rej
Page 175 and 176: PURPOSE MOPEX User’s Guide Set up
Page 177 and 178: MOPEX User’s Guide Most users wil
Page 179 and 180: DISCUSSION MOPEX User’s Guide Wit
Page 181 and 182: 7.5.5 PRF Estimate Modules: Split B
Page 183: MOPEX User’s Guide Fit Seed: (int
Page 187 and 188: 8.2 Outlier Detection MOPEX User’
Page 189 and 190: MOPEX User’s Guide Figure 8.3: An
Page 191 and 192: MOPEX User’s Guide Two ways to es
Page 193 and 194: MOPEX User’s Guide USE_DUAL_OUTLI
Page 195 and 196: MOPEX User’s Guide Figure 8.9: As
Page 197 and 198: MOPEX User’s Guide Important: Usi
Page 199 and 200: MOPEX User’s Guide Figure 8.12: T
Page 201 and 202: 8.3.2 Thresholding MOPEX User’s G
Page 203 and 204: T cl = P min − T min SegLevel MOP
Page 205 and 206: Centroid _ X = ∑ i∈cluster X(i)
Page 207 and 208: MOPEX User’s Guide where IPi is t
Page 209 and 210: MOPEX User’s Guide Figure 8.18: T
Page 211 and 212: 8.4.5 Cubic: Bicubic Interpolation
Page 213 and 214: z n = ∑ r(r≠n ) Onr(I n − Ir
Page 215 and 216: MOPEX User’s Guide the parameter
Page 217 and 218: MOPEX User’s Guide Figure 8.22: P
Page 219 and 220: MOPEX User’s Guide that resembles
Page 221 and 222: ∑ AP = a i ⋅ I i MOPEX User’s
Page 223 and 224: MOPEX User’s Guide In particular
Page 225 and 226: 8.9.3 Aperture Uncertainties MOPEX
Page 227 and 228: MOPEX User’s Guide e.g. if you wi
Page 229 and 230: MOPEX User’s Guide In order to ru
Page 231 and 232: MOPEX User’s Guide from the GUI,
Page 233 and 234: 9.4.2.1 Input Files and Output Dire
Page 235 and 236:
MOPEX User’s Guide Table 9.1: Lis
Page 237 and 238:
9.7.2 APEX User List Multiframe (ap
Page 239 and 240:
9.7.4 Single-frame mode (apex_1fram
Page 241 and 242:
MOPEX User’s Guide Table 9.6: Lis
Page 243 and 244:
Appendix A. Full List of MOPEX Scri
Page 245 and 246:
A.1.3 Under Construction Running MO
Page 247 and 248:
Appendix B. Full List of Modules in
Page 249 and 250:
Mosaic Interpolate run_mosaic_int P
Page 251 and 252:
Running MOPEX on the Command Line a
Page 253 and 254:
B.5 PRF Estimate Modules Running MO
Page 255 and 256:
Instrument PRF Samp c Norm Radius (
Page 257:
Some Tips for MOPEX with Spitzer Da
show all

MOPEX User's Guide - IRSA

Create successful ePaper yourself

Delete template?

Save as template?