Goals From OT:

Representative Target: Serpens_Main_850_00
Representative Frequency: 350.5000 GHz (SPW 18)
Bandwidth for Sensitivity: 7500 MHz
Min / Max Acceptable Resolution: Not available
Maximum expected beam axial ratio (from OT): Not available
Goal PI sensitivity: 1.00 mJy
Single Continuum: True

Estimated Synthesized Beam and Sensitivities for the Representative Target/Frequency

Estimates are given for four possible values of the tclean robust weighting parameter: robust = 0.0, +0.5 (default), +1.0, and +2.0. If the "Min / Max Acceptable Resolution" is available (>=Cycle 5 12-m Array data), the robust value closest to the default (+0.5) that predicts a beam area (defined as simply major x minor) that is in the range of the PI requested beam areas according to the table row for repBW (Bandwidth for Sensitivity) is chosen. If none of these robust values predict a beam area that is in range, robust=+2.0 is chosen if the predicted beam area is too small, and robust=0.0 is chosen if the predicted beam area is too large. The chosen robust value is highlighted in green and used for all science target imaging. In addition to an estimate for the repBW, an estimate for the aggregate continuum bandwidth (aggBW) is also given assuming NO line contamination but accounting for spw frequency overlap. If the Bandwidth for Sensitivity (repBW) is > the bandwidth of the spw containing the representative frequency (repSPW), then the beam is predicted using all spws, otherwise the beam is predicted for the repSPW alone. A message appears on the "By Task" view if a non-default value of robust (i.e., not +0.5) is chosen. Additionally, if the predicted beam is not within the PI requested range using one of the four robust values, Warning messages appear on this page.

These estimates should always be considered as the BEST CASE SCENARIO. These estimates account for Tsys, the observed uv-coverage, and prior flagging. The estimates DO NOT account for (1) subsequent science target flagging; (2) loss of continuum bandwidth due to the hif_findcont process (i.e. removal of lines and other spectral features from the data used to image the continuum); (3) Issues that affect the image quality like (a) poor match of uv-coverage to image complexity; (b) dynamic range effects; (c) calibration deficiencies (poor phase transfer, residual baseline based effects, residual antenna position errors, etc.). It is also important to note that both the repBW and aggBW beam calculations are intrinsically multi-frequency synthesis continuum calculations, using the relevant spws as described above. The synthesized beam for a single channel in a cube will typically be larger and can be significantly larger depending on the details of uv-coverage and channel width.
robust uvtaper Synthesized Beam Cell Beam Ratio Bandwidth BW Mode Effective Sensitivity
0.5 [] 5.38 x 3.58 arcsec @ -44.6 deg 0.72 x 0.72 arcsec 1.50 7500 MHz repBW 0.0013 Jy/beam
0.5 [] 5.38 x 3.58 arcsec @ -44.6 deg 0.72 x 0.72 arcsec 1.50 7500 MHz aggBW 0.0013 Jy/beam
output_dir
 
calcsb
False
vis
['uid___A002_Xeea188_X1f88.ms']
parallel
automatic
Start time
2023-05-05 21:30:14.186
End
2023-05-05 21:31:10.127
Duration
0:00:55.941
Context size
250.1 MiB
Note, WebLog generation is not included in the time.

CASA logs for stage 24