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fix errors

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Sarod Yatawatta 2014-01-08 06:55:06 +01:00
parent 4812b51f8d
commit 885ba80113
1 changed files with 6 additions and 2 deletions
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README
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@ -10,7 +10,7 @@ Step by Step Introduction:
####################################################################### #######################################################################
2) Sky Model: 2) Sky Model:
3a)Make an image of your MS (using casapy). (Optional: also multiply the image by 2 to get the right flux). Use Duchamp to create a mask for the image. Use buildsky to create a sky model. (see the README file on top level directory). Also create a proper cluster file. 3a)Make an image of your MS (using ExCon/casapy). Use Duchamp to create a mask for the image. Use buildsky to create a sky model. (see the README file on top level directory). Also create a proper cluster file.
Special options to buildsky: -o 1 (NOTE: not -o 2) Special options to buildsky: -o 1 (NOTE: not -o 2)
Alternatively, create these files by hand according to the following formats. Alternatively, create these files by hand according to the following formats.
@ -23,7 +23,8 @@ e.g.
2 3 P11C2 P11C1 P13C1 2 3 P11C2 P11C1 P13C1
Note: putting -ve values for cluster_id will not subtract them from data. Note: putting -ve values for cluster_id will not subtract them from data.
chunk_size: find hybrid solutions during one solve run. Eg. if -t 120 is used to select 120 timeslots, cluster 0 will find a solution using the full 120 timeslots while cluster 2 will solve for every 120/3=40 timeslots. chunk_size: find hybrid solutions during one solve run. Eg. if -t 120 is used
to select 120 timeslots, cluster 0 will find a solution using the full 120 timeslots while cluster 2 will solve for every 120/3=40 timeslots.
2c)Sky model format: 2c)Sky model format:
name h m s d m s I Q U V spectral_index RM extent_X(rad) extent_Y(rad) pos_angle(rad) freq0 name h m s d m s I Q U V spectral_index RM extent_X(rad) extent_Y(rad) pos_angle(rad) freq0
@ -43,6 +44,7 @@ S3C61MD 2 22 49.796414 86 18 55.913266 0.135 0 0 0 -6.6 0 1 1 0.0 115000000.0
Note: Comments starting with a '#' are allowed for both sky model and cluster files. Note: Comments starting with a '#' are allowed for both sky model and cluster files.
Note: 3rd order spectral indices are also supported, use -F 1 option in sagecal.
####################################################################### #######################################################################
3)Run sagecal 3)Run sagecal
@ -52,3 +54,5 @@ Recommended usage: (with GPUs)
sagecal -d my_data.MS -s my_skymodel -c my_clustering -n no.of.threads -t 60 -p my_solutions -e 3 -g 2 -l 10 -m 7 -w 1 -b 1 sagecal -d my_data.MS -s my_skymodel -c my_clustering -n no.of.threads -t 60 -p my_solutions -e 3 -g 2 -l 10 -m 7 -w 1 -b 1
Use your solution interval (-t 60) so that its big enough to get a decent solution and not too big to make the parameters vary too much. (about 20 minutes per solution is reasonable). Use your solution interval (-t 60) so that its big enough to get a decent solution and not too big to make the parameters vary too much. (about 20 minutes per solution is reasonable).
Note: It is also possible to calibrate more than one MS together. See the -f option.