# Probe

**URL:** https://discourse.paraview.org/t/probe/9194
**Category:** ParaView Support
**Created:** [March 16, 2022, 8:38am UTC](https://discourse.paraview.org/t/probe/9194 "2022-03-16T08:38:30Z")
**Posts on this page:** 10
**Page:** 1

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 16, 2022, 8:38am UTC](https://discourse.paraview.org/t/probe/9194/1 "2022-03-16T08:38:30Z")

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I used probe at the first timestep of my data, in spreadsheet view, I didn’t get any values or parameters, but when I used a different time step, the Values with the parametrs are visible. Why is this happening and how do I make the paramerts and their value visible for the first steap.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 16, 2022, 8:39am UTC](https://discourse.paraview.org/t/probe/9194/2 "2022-03-16T08:39:45Z")

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your probe is probably outside of your data.

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 16, 2022, 8:40am UTC](https://discourse.paraview.org/t/probe/9194/3 "2022-03-16T08:40:40Z")

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But I did check it was inside my data.

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [March 16, 2022, 8:41am UTC](https://discourse.paraview.org/t/probe/9194/4 "2022-03-16T08:41:34Z")

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please share your data

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 16, 2022, 8:42am UTC](https://discourse.paraview.org/t/probe/9194/5 "2022-03-16T08:42:59Z")

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It is a confidential set of data, seems I can’t, but can you help me out ?

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 16, 2022, 8:43am UTC](https://discourse.paraview.org/t/probe/9194/6 "2022-03-16T08:43:20Z")

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![image](https://discourse.paraview.org/uploads/default/original/2X/0/00451c872c17c2165f02052486b4b80dc58f4959.png)Have not gotten any values

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 16, 2022, 8:44am UTC](https://discourse.paraview.org/t/probe/9194/7 "2022-03-16T08:44:29Z")

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![image](https://discourse.paraview.org/uploads/default/original/2X/5/54689f14c97913ac10462ab195026de2d763ca20.png)Got the values here

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### Author: ![Kenneth\_Moreland](https://discourse.paraview.org/user_avatar/discourse.paraview.org/kenneth_moreland/32/15033_2.png) [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [March 16, 2022, 1:36pm UTC](https://discourse.paraview.org/t/probe/9194/8 "2022-03-16T13:36:22Z")

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It looks like the first timestep of your data is missing the fields. Even if the probe location is outside of the data, the `Probe Location` filter should have table columns for each field. Here is a screenshot of the disk\_out\_ref example with a probe outside of the volume:

 ![image](https://discourse.paraview.org/uploads/default/original/2X/c/cb7804564b6cd73d65636039d3fdf2015ad8e606.jpeg)

As you can see, all the data columns are there, but they are zero-ed out and the special `vtkValidPointMask` column is set to 0.

Since you cannot send us your data, check for yourself to make sure that the first timestep actually has the field values.

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 17, 2022, 6:22am UTC](https://discourse.paraview.org/t/probe/9194/9 "2022-03-17T06:22:31Z")

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Thanks a lot, understood.

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### Author: ![PALANI](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/p/ed655f/32.png) [@PALANI](https://discourse.paraview.org/u/PALANI)
#### Post date: [March 17, 2022, 11:59am UTC](https://discourse.paraview.org/t/probe/9194/10 "2022-03-17T11:59:01Z")

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But what if it does nott work fore first few time steps ? The same, does it mean there is no field value for those timesteps ?