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observation:2025campaign [2024/12/20 11:10] – etienne | observation:2025campaign [2025/03/11 13:08] (current) – bgelly | ||
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The 2025 campaign shall observe the following schedule | The 2025 campaign shall observe the following schedule | ||
- | * December 2024: opening of call to apply for observation time during the 2025 campaign. See bellow for how to apply. | + | * < |
- | * <color orange> January 24th, 2025: proposal deadline for " | + | * <del> January 24th, 2025: proposal deadline for " |
- | * <color orange> February 17th, 2025: proposal deadline for " | + | * <del> February 17th, 2025: proposal deadline for " |
- | * March 2025: observation time allocation announced to applicants | + | * < |
+ | * 2025 campaign schedule v1.1 is [[call25: | ||
* April-July 2025: observation campaign | * April-July 2025: observation campaign | ||
* Fall 2025: integration of the spectroimaging [[technical: | * Fall 2025: integration of the spectroimaging [[technical: | ||
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==== Call for observation time during the 2025 campaign ==== | ==== Call for observation time during the 2025 campaign ==== | ||
- | Interested researchers are encouraged to check the **[[# | + | Interested researchers are encouraged to check the **[[# |
**Inquiries** : Applicants, in particular if they are not familiar with THEMIS observations, | **Inquiries** : Applicants, in particular if they are not familiar with THEMIS observations, | ||
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=== How to apply === | === How to apply === | ||
+ | |||
+ | **The call for the 2025 observing campaign is now closed!** | ||
The submission of proposals is specific to the category of users one belongs, based on [[: | The submission of proposals is specific to the category of users one belongs, based on [[: | ||
* " | * " | ||
* Interested observers shall complete the **[[http:// | * Interested observers shall complete the **[[http:// | ||
- | * <color orange> Deadline: February 17th, 2025.</color> | + | * <del> Deadline: February 17th, 2025.</del> |
* " | * " | ||
* Applicants shall follow the instructions of the **[[http:// | * Applicants shall follow the instructions of the **[[http:// | ||
- | * <color orange> Deadline: January 24th, 2025. </color> | + | * <del> Deadline: January 24th, 2025. </del> |
* " | * " | ||
* Interested observers shall complete the **[[http:// | * Interested observers shall complete the **[[http:// | ||
- | * <color orange> Deadline: February 17th, 2025.</color> | + | * <del> |
As soon as the appropriate proposal refereeing procedures of each community and TAC have been passed, applicants shall quickly be informed of their application outcomes. During the fall of 2025, the integration of [[technical: | As soon as the appropriate proposal refereeing procedures of each community and TAC have been passed, applicants shall quickly be informed of their application outcomes. During the fall of 2025, the integration of [[technical: | ||
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* At the moment it is not possible to use the AO over the solar limb (or for neighboring prominences). | * At the moment it is not possible to use the AO over the solar limb (or for neighboring prominences). | ||
- | === MTR2 in spectroscopy mode === | + | === MTR2 in spectroscopy mode === |
+ | |||
In this mode, up to 4 (old) EMCCD Andor iXon camera (512x512) and up to 2 (new) Andor Zyla (2kx2k) cameras are available. Both 6 cameras can be setup and used at the same time (with their respective specs), | In this mode, up to 4 (old) EMCCD Andor iXon camera (512x512) and up to 2 (new) Andor Zyla (2kx2k) cameras are available. Both 6 cameras can be setup and used at the same time (with their respective specs), | ||
+ | [[technical: | ||
+ | |||
=== MTR2 in spectropolarimetry mode: === | === MTR2 in spectropolarimetry mode: === | ||
In this mode, 3 cameras (hence 3 wavelengths) at most are available, from the above list. It is possible to combine polarimetric and non-polarimetric cameras. THEMIS polarimetric analysis scheme is based on a full-Stokes analyzer located at the F1 prime focus. For any solar polarization state to measure, the output of the analyzer is made of dual superimposed complementary linear polarizations. Thanks to THEMIS " | In this mode, 3 cameras (hence 3 wavelengths) at most are available, from the above list. It is possible to combine polarimetric and non-polarimetric cameras. THEMIS polarimetric analysis scheme is based on a full-Stokes analyzer located at the F1 prime focus. For any solar polarization state to measure, the output of the analyzer is made of dual superimposed complementary linear polarizations. Thanks to THEMIS " | ||
+ | [[technical: | ||
+ | |||
Regarding the available analysis software: | Regarding the available analysis software: | ||
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It is running concurrently with the spectrograph. Current setup is for 656 nm (red), but this can be changed optionally to G-band or other. | It is running concurrently with the spectrograph. Current setup is for 656 nm (red), but this can be changed optionally to G-band or other. | ||
- | === 2024 known problems (and solutions) | + | == 2024 known problems (and solutions) == |
* The optical diffusion problem that was detected in Sept 2024 (mostly affecting the He D3 observations) has been identified and corrected (November 2024). | * The optical diffusion problem that was detected in Sept 2024 (mostly affecting the He D3 observations) has been identified and corrected (November 2024). | ||
* The data acquisition issue in polarimetric modes was tracked down to a bad synchronisation between the analyzer rotation and the camera exposure. This has been solved at the cost of slowing down the acquisition loop (roughly a factor 2 slower). This issue has been affecting all the September 2024 runs. | * The data acquisition issue in polarimetric modes was tracked down to a bad synchronisation between the analyzer rotation and the camera exposure. This has been solved at the cost of slowing down the acquisition loop (roughly a factor 2 slower). This issue has been affecting all the September 2024 runs. | ||
- | | + | |