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added some documentation on comparison of space_phot to photutils
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Ori Fox authored and gibsongreen committed Jun 18, 2024
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"**Updated**: November, 2023<br>\n",
"\n",
"**Use case**: PSF Photometry on Level3 data using dedicated package Space_Phot (https://github.com/jpierel14/space_phot). Space_phot is built on Astropy's Photutils package. Unlike photutils, space_phot can be used on Level3 data. This is because has built in functionality that can generate a resampled Level3 PSF at a given detector position. Such use cases are particularly useful for faint, point source targets or deep upper limits where observers need to take advantage of the combined image stack. For a large number of bright sources, users may find space_phot to be too slow and should consider other packages, such as DOLPHOT and/or Photutils. **NOTE:** A companion notebook exists that illustrates how to use Photutils for the same Level2 data set.<br>\n",
"**Important Note**: When not to use. Due to the sensitivity of the space_phot parameters, this tool is not meant to be used for a large sample of stars (i.e., Section 5 below). If a user would like to use space_phot on more than one source, they should carefully construct a table of parameters that are carefully refined for each source.\n",
"**Data**: MIRI Data PID 1028 (Calibration Program; Single Star Visit 006 A5V dwarf 2MASSJ17430448+6655015) and MIRI Data PID 1171 (LMC; Multiple Stars).<br>\n",
"**Tools**: photutils, space_phot drizzlepac, jupyter <br>\n",
"**Cross-Instrument**: NIRCam, MIRI.<br>\n",
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"lvl2"
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"**Important Note**: When not to use. Due to the sensitivity of the space_phot parameters, this tool is not meant to be used for a large sample of stars (i.e., Section 5 below). If a user would like to use space_phot on more than one source, they should carefully construct a table of parameters that are carefully refined for each source."
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"df"
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