# Saturated objects

**URL:** <https://www.rubin.community/t/saturated-objects/7423>\
**Category:** Support\
**Tags:** dp0\
**Created:** [February 15, 2023, 11:08am UTC](https://www.rubin.community/t/saturated-objects/7423 "2023-02-15T11:08:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dammando](https://avatars.discourse-cdn.com/v4/letter/d/eb8c5e/32.png) [@dammando](https://www.rubin.community/u/dammando)\
**Post date:** [February 15, 2023, 11:08am UTC](https://www.rubin.community/t/saturated-objects/7423/1 "2023-02-15T11:08:37Z")

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Hi Melissa,

in the DP0 simulated data the saturated objects are excluded or is there any possibility to recover saturated objects to be used for testing a software used to estimate the magnitude of these objects? When you have time please let me know. Thanks.

Cheers, Filippo

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**Author:** ![MelissaGraham](https://sea2.discourse-cdn.com/flex002/user_avatar/www.rubin.community/melissagraham/32/2549_2.png) [@MelissaGraham](https://www.rubin.community/u/MelissaGraham)\
**Post date:** [February 15, 2023, 5:25pm UTC](https://www.rubin.community/t/saturated-objects/7423/2 "2023-02-15T17:25:24Z")

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Hi Filippo,

It does appear that there are stars bright enough to saturate in the DC2 simulation, yes. In the screenshot below, I retrieve the true r-band magnitudes for true point sources within a 1 degree radius near the center of the DC2 area from the `TruthSummary` table, and then plot the histogram to get an idea of how many saturated (about r\<16) stars there might be for you to work with.

See tutorial notebook 08\_Truth\_Tables.ipynb for more information about how to use the truth tables and how to join them to the Object table of detections and measurements (find it in `/notebooks/tutorial-notebooks/` in your home directory in the Notebook Aspect at data.lsst.cloud).

 ![Screen Shot 2023-02-15 at 9.21.13 AM](https://us1.discourse-cdn.com/flex002/uploads/rubin/original/2X/9/93e2baae542969592f7aa9e6c2fd9f6d049e825a.png)

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