RTC Parameter FilesΒΆ
Parameter files define the quasi-constant numerical values used in the real-time computational engine, basically defining the AO system’s behavior. Some files define what would be considered the system-defining components, such as the reconstruction matrix, and some files provide operational information, such as the most recents set of camera darks and reference centroids.
All the files are in FITS format.
Please refer to the ShaneAO Design Documentation Archive (used to be Knowledge Tree) directories for descriptions of the algorithms and the data sets used by rtc
If the links below are forbidden for you to access, you first need to log in to the archive
| Filename | Purpose |
|---|---|
| aa_filt_alpha.fits | anti-alias filter coefficients |
| actuator_defaults.fits | default settings of actuators - nominally the “flat” surface settings |
| actuator_limits.fits | limits of the actuators |
| cent_weights_cog.fits | centroider weight for center of gravity algorithm |
| cent_weights_q2.fits | centroider weight for 2x2 quadcell algorithm |
| cent_weights_q4.fits | centroider weight for 4x4 quadcell algorithm |
| i_map.fits | de-interlace map for the wavefront sensor camera |
| i_map_subaps_16x.fits | de-interlace map for the wavefront sensor camera - sends pixels associated with illuminated subaps into contiguous groups of elements |
| i_map_subaps_30x.fits | de-interlace map for the wavefront sensor camera - sends pixels associated with illuminated subaps into contiguous groups of elements |
| i_map_subaps_8x.fits | de-interlace map for the wavefront sensor camera - sends pixels associated with illuminated subaps into contiguous groups of elements |
| integrator_bleeds.fits | decay weights for each integrator |
| ref_cent_16x.fits | reference centroids |
| ref_cent_30x.fits | reference centroids |
| ref_cent_8x.fits | reference centroids |
| tweeter_map.fits | descramble map for the tweeter driver - maps 32x32 array of actuators into dpio2 1024 element buffer |
| tt_dark.fits | tip/tilt camera dark |
| tt_flat.fits | tip/tilt camera flat field compensation |
| tt_centWts.fits | tip/tilt camera centroider weights |
| wfs_dark.fits | wfs camera average dark frame |
| wfs_flat.fits | wfs camera flat field compensation |