Autoguiding with Lhires3
This page explains how to adjust Audela's autoguiding tool according to LHIRES orientation.
We give three examples:
- Lhires slit is parallel to the right ascension
- Lhires slit is parallel to the declination (90° rotation to the left)
- Lhires slit is parallel to the declination (90° rotation to the right)
Procedure
Case 1 - Lhires in normal position (slit parallel to the RA)
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Cameras are above and Lhires is below. |
The angle must be 0°. |
North is in the top of the image. |
Case 2 - Lhires turned to 90° to the left (slit parallel to the DEC)
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Cameras are on the left and Lhires is on the right. |
The angle must be 90°. |
North is on the right of the image. |
Note: On the image, the slit remains horizontal whatever Lhires orientation.
Case 3 - Lhires is turned to 90° to the right (slit parallel to the DEC)
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Cameras are on the right and Lhires is on the left. |
The angle must be 270° (or -90°). |
North is on the left of the image. |
Note: On the image, the slit remains horizontal whatever Lhires orientation.
(*) In AudeLA version 1.4.0, cardinal points are not correctly positioned. It is only a display error and autoguiding IS correctly implemented. This error will be corrected in a future version.