Free Access
 

 

Table 1:

Overview of the processing parameters for the three data sets that are handled with SPAM as defined in the test cases.
Field name VLSS J0900+398 (simulated) VLSS J0900+398 (real) VLSS J1300-208 (real)
Pixel sizea 18.9 $^{\prime \prime }$ 18.9 $^{\prime \prime }$ 11.1 $^{\prime \prime }$
Number of facets 347 243 576
Facet separation $1.18^{\circ}$ $1.18^{\circ}$ $0.62^{\circ}$
SPAM calibration cyclesb 1 1 3
Peeling sources 10c 11 9
KL model height 1000 kmd 200 km 200 km
Fitted KL model terms 15 15 20e
Rejected time intervals 0 / 464 25 / 464 86 / 484
Model fit phase rms $3.0^{\circ}\pm 0.8^{\circ}$ $21.3^{\circ}\pm 2.4^{\circ}$ $23.2^{\circ}\pm 3.2^{\circ}$
Peeling corrections applied directly no yes yes
a The pixel size for all field-based calibration images is 20 $^{\prime \prime }$. b Adding more cycles did not significantly improve the image quality. c Arbitrarily limited to mimic a more realistic scenario. d Increased to improve match with FBC phase screen. e In this case, 15 terms proved to be insufficient.

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.