2026-10-06 01:57:11 INFO ::casa Using user configuration file /home/casatest/.casa/config.py 2026-10-06 01:57:11 INFO ::casa loaded config file : /wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casaconfig/config.py 2026-10-06 01:57:11 INFO ::casa loaded config file : /home/casatest/.casa/config.py 2026-10-06 01:57:11 INFO ::casa 2026-10-06 01:57:11 INFO ::casa config values 2026-10-06 01:57:11 INFO ::casa agg = False 2026-10-06 01:57:11 INFO ::casa cachedir = '/home/casatest/.casa' 2026-10-06 01:57:11 INFO ::casa casaconfig_verbose = 1 2026-10-06 01:57:11 INFO ::casa colors = 'Neutral' 2026-10-06 01:57:11 INFO ::casa data_auto_update = False 2026-10-06 01:57:11 INFO ::casa data_update_interval = 1 2026-10-06 01:57:11 INFO ::casa datapath = ['/opt/casa/data/master', '/opt/casa/data/casatestdata'] 2026-10-06 01:57:11 INFO ::casa iplog = False 2026-10-06 01:57:11 INFO ::casa iplogfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_feather_casashell/ipython-20261006-015707.log' 2026-10-06 01:57:11 INFO ::casa log2term = True 2026-10-06 01:57:11 INFO ::casa logfile = '/home/casatest/casa6/casatasks/tests/casashell_tests/work/test_task_feather_casashell/casa-20261006-015707.log' 2026-10-06 01:57:11 INFO ::casa measures_auto_update = False 2026-10-06 01:57:11 INFO ::casa measures_site = ['https://iers.astron.nl/', 'https://go.nrao.edu/iers/'] 2026-10-06 01:57:11 INFO ::casa measures_site_interval = 2 2026-10-06 01:57:11 INFO ::casa measures_update_interval = 1 2026-10-06 01:57:11 INFO ::casa measurespath = '/opt/casa/data/master' 2026-10-06 01:57:11 INFO ::casa nogui = False 2026-10-06 01:57:11 INFO ::casa nologfile = False 2026-10-06 01:57:11 INFO ::casa nologger = True 2026-10-06 01:57:11 INFO ::casa pipeline = False 2026-10-06 01:57:11 INFO ::casa skipnetworkcheck = False 2026-10-06 01:57:11 INFO ::casa startupfile = '/home/casatest/.casa/startup.py' 2026-10-06 01:57:11 INFO ::casa user_site = False 2026-10-06 01:57:11 INFO ::casa 2026-10-06 01:57:11 INFO ::casa casarundata version is unknown, this is probably a legacy version not installed by casaconfig 2026-10-06 01:57:11 INFO ::casa measures version : WSRT_Measures_20211217-160001.ztar 2026-10-06 01:57:11 INFO ::casa 2026-10-06 01:57:11 INFO ::casa Checking Measures tables in data repository sub-directory /opt/casa/data/master/geodetic 2026-10-06 01:57:11 INFO ::casa IERSeop2000 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-06 01:57:11 INFO ::casa IERSeop97 (version date, last date in table (UTC)): 2026/09/10/15:15, 2026/08/11/00:00:00 2026-10-06 01:57:11 INFO ::casa IERSpredict (version date, last date in table (UTC)): 2026/10/05/15:15, 2027/01/03/00:00:00 2026-10-06 01:57:11 INFO ::casa TAI_UTC (version date, last date in table (UTC)): 2026/10/05/15:15, 2017/01/01/00:00:00 Running tests... ---------------------------------------------------------------------- Using user configuration file /home/casatest/.casa/config.py No event loop hook running. Using matplotlib backend: agg CASA 6.7.7.12 -- Common Astronomy Software Applications [6.7.7.12] 2026-10-06 01:57:11 INFO feather::::casa ########################################## 2026-10-06 01:57:11 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:11 INFO feather::::casa feather( imagename='feathered.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:11 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:11 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:11 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:11 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:11 INFO feather::imager::feather() 2026-10-06 01:57:11 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:11 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:11 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:12 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:10.900449 End time: 2026-10-06 01:57:11.838843 2026-10-06 01:57:12 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:12 INFO feather::::casa ########################################## .2026-10-06 01:57:12 INFO image::_setrestoringbeam Will remove any existing beams from image 2026-10-06 01:57:12 INFO Deleted restoring beam(s) 2026-10-06 01:57:12 INFO image::_setrestoringbeam Will use dictionary specified in beam parameter to set the beam(s) 2026-10-06 01:57:12 INFO BeamManipulator::set Setting (global) restoring beam. 2026-10-06 01:57:12 INFO BeamManipulator::set Beam parameters: Major : 78.1052 arcsec 2026-10-06 01:57:12 INFO BeamManipulator::set+ Minor : 77.1472 arcsec 2026-10-06 01:57:12 INFO BeamManipulator::set+ Position Angle : 15.4584 deg 2026-10-06 01:57:12 INFO image::_setrestoringbeam Will remove any existing beams from image 2026-10-06 01:57:12 INFO Deleted restoring beam(s) 2026-10-06 01:57:12 INFO image::_setrestoringbeam Will use dictionary specified in beam parameter to set the beam(s) 2026-10-06 01:57:12 INFO BeamManipulator::set Setting (global) restoring beam. 2026-10-06 01:57:12 INFO BeamManipulator::set Beam parameters: Major : 78.1052 arcsec 2026-10-06 01:57:12 INFO BeamManipulator::set+ Minor : 77.1472 arcsec 2026-10-06 01:57:12 INFO BeamManipulator::set+ Position Angle : 15.4584 deg 2026-10-06 01:57:12 INFO feather::::casa ########################################## 2026-10-06 01:57:12 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:12 INFO feather::::casa feather( imagename='feathered.im', highres='onebeam_int.im', lowres='onebeam_sd.im', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:12 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:12 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:12 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:12 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:12 INFO feather::imager::feather() 2026-10-06 01:57:12 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:13 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:13 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:13 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:12.348852 End time: 2026-10-06 01:57:13.316314 2026-10-06 01:57:13 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:13 INFO feather::::casa ########################################## 2026-10-06 01:57:13 INFO feather::::casa ########################################## 2026-10-06 01:57:13 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:13 INFO feather::::casa feather( imagename='feathered.im', highres='onebeam_int.im', lowres='papersky_standard.sdimage', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:13 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:13 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:13 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:13 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:13 INFO feather::imager::feather() 2026-10-06 01:57:13 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:13 INFO feather::imager::feather() One or both of the input images has per-plane restoring beams. Calling feather in a loop, per plane. 2026-10-06 01:57:13 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:14 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:14 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:15 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:13.318598 End time: 2026-10-06 01:57:14.686783 2026-10-06 01:57:15 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:15 INFO feather::::casa ########################################## .2026-10-06 01:57:15 INFO feather::::casa ########################################## 2026-10-06 01:57:15 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:15 INFO feather::::casa feather( imagename='feathered.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:15 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:15 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:15 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:15 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:15 INFO feather::imager::feather() 2026-10-06 01:57:15 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:15 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:15 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:15 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:14.704600 End time: 2026-10-06 01:57:15.106056 2026-10-06 01:57:15 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:15 INFO feather::::casa ########################################## 2026-10-06 01:57:15 INFO feather::::casa ########################################## 2026-10-06 01:57:15 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:15 INFO feather::::casa feather( imagename='feathered2.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=1.0, lowpassfiltersd=False ) 2026-10-06 01:57:15 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:15 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:15 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:15 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:15 INFO feather::imager::feather() 2026-10-06 01:57:15 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:15 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:15 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:16 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:15.107884 End time: 2026-10-06 01:57:15.996155 2026-10-06 01:57:16 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:16 INFO feather::::casa ########################################## 2026-10-06 01:57:16 INFO feather::::casa ########################################## 2026-10-06 01:57:16 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:16 INFO feather::::casa feather( imagename='feathered2.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=1000.0, lowpassfiltersd=False ) 2026-10-06 01:57:16 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:16 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:16 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:16 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:16 INFO feather::imager::feather() 2026-10-06 01:57:16 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:16 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:16 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:16 SEVERE feather::imager::feather() Caught exception: Beam due to new effective diameter may be smaller than the beam of original dish image 2026-10-06 01:57:16 SEVERE feather::::casa Exception Reported: Error in feather: 2026-10-06 01:57:16 SEVERE feather::imager::feather() Caught exception: Beam due to new effective diameter may be smaller than the beam of original dish image 2026-10-06 01:57:16 INFO feather::::casa Traceback (most recent call last): 2026-10-06 01:57:16 INFO feather::::casa+ File "/wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/feather.py", line 391, in __call__ 2026-10-06 01:57:16 INFO feather::::casa+ task_result = _feather_t( _pc.document['imagename'],_pc.document['highres'],_pc.document['lowres'],_pc.document['sdfactor'],_pc.document['effdishdiam'],_pc.document['lowpassfiltersd'] ) 2026-10-06 01:57:16 INFO feather::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-06 01:57:16 INFO feather::::casa+ File "/wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casatasks/private/task_feather.py", line 36, in feather 2026-10-06 01:57:16 INFO feather::::casa+ imFea.feather(image=imagename,highres=highres,lowres=lowres, 2026-10-06 01:57:16 INFO feather::::casa+ File "/wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/imager.py", line 413, in feather 2026-10-06 01:57:16 INFO feather::::casa+ return self._swigobj.feather(image, highres, lowres, lowpsf, effdishdiam, lowpassfiltersd) 2026-10-06 01:57:16 INFO feather::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-06 01:57:16 INFO feather::::casa+ File "/wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casatools/__casac__/imager.py", line 1092, in feather 2026-10-06 01:57:16 INFO feather::::casa+ return _imager.imager_feather(self, *args, **kwargs) 2026-10-06 01:57:16 INFO feather::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-06 01:57:16 INFO feather::::casa+ RuntimeError: 2026-10-06 01:57:16 SEVERE feather::imager::feather() Caught exception: Beam due to new effective diameter may be smaller than the beam of original dish image 2026-10-06 01:57:16 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:16.013605 End time: 2026-10-06 01:57:16.318956 2026-10-06 01:57:16 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:16 INFO feather::::casa ########################################## .2026-10-06 01:57:16 SEVERE feather::::casa Exception Reported: Error in feather: the highres parameter must be a path that exists ('' does not exist) 2026-10-06 01:57:16 INFO feather::::casa Traceback (most recent call last): 2026-10-06 01:57:16 INFO feather::::casa+ File "/wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/feather.py", line 389, in __call__ 2026-10-06 01:57:16 INFO feather::::casa+ assert _pc.validate(_invocation_parameters,self.__schema), create_error_string(_pc.errors) 2026-10-06 01:57:16 INFO feather::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-06 01:57:16 INFO feather::::casa+ AssertionError: the highres parameter must be a path that exists ('' does not exist) .2026-10-06 01:57:16 INFO feather::::casa ########################################## 2026-10-06 01:57:16 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:16 INFO feather::::casa feather( imagename='feathered.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:16 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:16 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:16 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:16 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:16 INFO feather::imager::feather() 2026-10-06 01:57:16 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:16 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:16 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:17 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:16.329208 End time: 2026-10-06 01:57:16.883862 2026-10-06 01:57:17 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:17 INFO feather::::casa ########################################## 2026-10-06 01:57:17 INFO feather::::casa ########################################## 2026-10-06 01:57:17 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:17 INFO feather::::casa feather( imagename='feathered2.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:17 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:17 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:17 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:17 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:17 INFO feather::imager::feather() 2026-10-06 01:57:17 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:17 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:17 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:17 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:16.886002 End time: 2026-10-06 01:57:17.420070 2026-10-06 01:57:17 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:17 INFO feather::::casa ########################################## .2026-10-06 01:57:17 INFO feather::::casa ########################################## 2026-10-06 01:57:17 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:17 INFO feather::::casa feather( imagename='feathered.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:17 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:17 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:17 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:17 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:17 INFO feather::imager::feather() 2026-10-06 01:57:17 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:18 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:18 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:18 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:17.425994 End time: 2026-10-06 01:57:17.982944 2026-10-06 01:57:18 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:18 INFO feather::::casa ########################################## 2026-10-06 01:57:18 INFO feather::::casa ########################################## 2026-10-06 01:57:18 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:18 INFO feather::::casa feather( imagename='feathered2.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=True ) 2026-10-06 01:57:18 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:18 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:18 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:18 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:18 INFO feather::imager::feather() 2026-10-06 01:57:18 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:18 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:18 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:19 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:17.985040 End time: 2026-10-06 01:57:18.653054 2026-10-06 01:57:19 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:19 INFO feather::::casa ########################################## .2026-10-06 01:57:19 SEVERE feather::::casa Exception Reported: Error in feather: the lowres parameter must be a path that exists ('' does not exist) 2026-10-06 01:57:19 INFO feather::::casa Traceback (most recent call last): 2026-10-06 01:57:19 INFO feather::::casa+ File "/wheeldirectory/casa-6.7.7-12-py3.12.el8/lib/py/lib/python3.12/site-packages/casashell/private/feather.py", line 389, in __call__ 2026-10-06 01:57:19 INFO feather::::casa+ assert _pc.validate(_invocation_parameters,self.__schema), create_error_string(_pc.errors) 2026-10-06 01:57:19 INFO feather::::casa+ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 2026-10-06 01:57:19 INFO feather::::casa+ AssertionError: the lowres parameter must be a path that exists ('' does not exist) .2026-10-06 01:57:19 INFO feather::::casa ########################################## 2026-10-06 01:57:19 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:19 INFO feather::::casa feather( imagename='feathered.im', highres='papersky_standard.intimage', lowres='papersky_standard.sdimage', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:19 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:19 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:19 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:19 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:19 INFO feather::imager::feather() 2026-10-06 01:57:19 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:19 INFO feather::imager::feather() One or both of the input images has per-plane restoring beams. Calling feather in a loop, per plane. 2026-10-06 01:57:19 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:19 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:20 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:20 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:18.676194 End time: 2026-10-06 01:57:19.834078 2026-10-06 01:57:20 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:20 INFO feather::::casa ########################################## .2026-10-06 01:57:20 INFO feather::::casa ########################################## 2026-10-06 01:57:20 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:20 INFO feather::::casa feather( imagename='feathered.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=1.0, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:20 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:20 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:20 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:20 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:20 INFO feather::imager::feather() 2026-10-06 01:57:20 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:20 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:20 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:20 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:19.838306 End time: 2026-10-06 01:57:20.443297 2026-10-06 01:57:20 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:20 INFO feather::::casa ########################################## 2026-10-06 01:57:20 INFO feather::::casa ########################################## 2026-10-06 01:57:20 INFO feather::::casa ##### Begin Task: feather ##### 2026-10-06 01:57:20 INFO feather::::casa feather( imagename='feathered2.im', highres='orion_tfeather.im', lowres='orion_tsdmem.image', sdfactor=0.5, effdishdiam=-1.0, lowpassfiltersd=False ) 2026-10-06 01:57:20 INFO feather::Imager::setvp() Setting voltage pattern parameters 2026-10-06 01:57:20 INFO feather::Imager::setvp() Sky position tolerance is 180 degrees 2026-10-06 01:57:20 INFO feather::Imager::setvp() Using system default voltage patterns for each telescope 2026-10-06 01:57:20 INFO feather::imager::setsdoptions() Setting single dish processing options 2026-10-06 01:57:20 INFO feather::imager::feather() 2026-10-06 01:57:20 INFO feather::imager::feather()+ Feathering together high and low resolution images... 2026-10-06 01:57:21 INFO feather::imager::feather() Each input image has a single restoring beam. 2026-10-06 01:57:21 WARN feather::ImageRegrid::regrid You are regridding an image whose beam is not well sampled by the pixel size. Total flux can be lost when regridding such images, especially when the new pixel size is larger than the old pixel size. It is recommended to check the total flux of your input and output image, and if necessary rebin the input to have smaller pixels. 2026-10-06 01:57:21 INFO feather::::casa Task feather complete. Start time: 2026-10-06 01:57:20.445358 End time: 2026-10-06 01:57:21.164003 2026-10-06 01:57:21 INFO feather::::casa ##### End Task: feather ##### 2026-10-06 01:57:21 INFO feather::::casa ########################################## . ---------------------------------------------------------------------- Ran 9 tests in 10.296s OK Generating XML reports...