createInitialSkyWcsFromBoresight¶
- lsst.obs.base.createInitialSkyWcsFromBoresight(boresight, orientation, detector, flipX=None)¶
Create a SkyWcs from the telescope boresight and detector geometry.
A typical usecase for this is to create the initial WCS for a newly-read raw exposure.
- Parameters:
- boresight
lsst.geom.SpherePoint
The ICRS boresight RA/Dec
- orientation
lsst.geom.Angle
The rotation angle of the focal plane on the sky.
- detector
lsst.afw.cameraGeom.Detector
Where to get the camera geometry from.
- flipX
bool
orNone
, optional If
False
, +X is along W, ifTrue
+X is along E. IfNone
, the focal plane parity in the camera geometry is assumed to be correct, which may not be true for old camera datasets.
- boresight
- Returns:
- skyWcs
lsst.afw.geom.SkyWcs
The new composed WCS.
- skyWcs
- Raises:
- InitialSkyWcsError
Raised if there is an error generating the SkyWcs, chained from the lower-level exception if available.