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MelissaGraham merged 1 commit into from
Jul 24, 2026
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u/mlg/2026-07-24: update markdown in 103 1 #180

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8 changes: 2 additions & 6 deletions DP2/100_How_to_use_RSP_tools/103_Image_access_and_display/103_1_Butler_image_access.ipynb
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"\n",
"The most common Butler image queries constrain the band (filter), sky location (coordinate), and/or time of observation.\n",
"\n",
"The five types of images available are:\n",
"The five types of images are:\n",
"* `deep_coadd` : stacks of multiple visit images\n",
"* `template_coadd` : stacks of the third best-seeing images\n",
"* `visit_image` : processed and calibrated image from one visit, by detector\n",
"* `difference_image` : the result of subtracting a template from a visit image\n",
"* `raw` : the exposure from camera readout\n",
"\n",
"To search and retrieve the deep or template coadds is the same query format, so only `deep_coadd` images are used as an example in Section 3.1.\n",
"\n",
"To search and retrieve the visit or difference images is the same query format, so only `visit_images` are used as an example in Section 3.2.\n",
"\n",
"The queries for `raw` images are demonstrated in the 200-level tutorial on `raw` images.\n",
"**For Early DP2 only deep coadd images are available.**\n",
"\n",
"### 3.1. Deep coadd images\n",
"\n",
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