Table of contents
- 1. C181D Correlation Report
- 1.1. General information
- 1.2. Current Status
- 1.3. Fringes
- 1.4. Notes
- 1.5. Post-Correlation checks
- 1.5.1. Residuals
- 1.5.2. FITS completeness (pclist)
C181D Correlation Report
General information
- Includes MG004 and MM013C.
- Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
- Station feedback: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr18/feedback_apr18.asc
Current Status
Correlation finished, data is ready to be released.
Fringes
| Station | Code | Fringes | Plots | Comments |
|---|---|---|---|---|
| Ef | B | yes | Fringe overview of all baselines including Ef in LL (left for each baseline) and RR (right for each baseline). Legend: white - scheduled, but no data, blue - no fringe, red-green - fringes of different quality. D -- fourfit error, in this case due to mixing upper and lower subbands in the KVN compatibility mode, no real problem with the data. c181d_FRINGE_RfAnt_Ef_LLRR_AllSrc.pdf Examples of fourfit fringe plots: Same for all antennas below unless otherwise noted. | in the plots Ef is "missing" all the baselines except to ALMA, GLT and KVN. This is due to a fourfit error, the baselines are missing only from some of the diagnostic plots, but are present in the final correlation products. |
| On | X | in the plots On is "missing" all the baselines except to ALMA, GLT and KVN. This is due to a fourfit error, the baselines are missing only from some of the diagnostic plots, but are present in the final correlation products. | ||
| Ys | Y | in the plots Ys is "missing" all the baselines except to ALMA, GLT and KVN. This is due to a fourfit error, the baselines are missing only from some of the diagnostic plots, but are present in the final correlation products. | ||
| Mh | Z | in the plots Mh is "missing" all the baselines except to ALMA, GLT and KVN. This is due to a fourfit error, the baselines are missing only from some of the diagnostic plots, but are present in the final correlation products. | ||
| Pv | P | in the plots Pv is "missing" all the baselines except to ALMA, GLT and KVN. This is due to a fourfit error, the baselines are missing only from some of the diagnostic plots, but are present in the final correlation products. | ||
| VLBA: Br | b | |||
| VLBA: Fd | f | |||
| VLBA: Kp | k | |||
| VLBA: La | l | |||
| VLBA: Mk | m | |||
| VLBA: Nl | n | |||
| VLBA: Ov | o | |||
| VLBA: Pt | p | |||
| GBT: Gb | G | |||
| GLT: Gl | g | |||
| ALMA: Aa | A | ____________________________________________________________________ | Observed in linear polarization, converted to circular polarization in post-correlation uning PolConvert. For technical reasons the atmospheric correction was applied twice -- both in original ALMA data and during the correlation. Although a special procedure was developed to compensate for this, we found that its application leads to other difficulties, in particular to abnormally high fringe rate jumps, so in the final production run the double atmospheric correction was left as is. | |
| KVN: Kt | t | |||
| KVN: Ku | u | |||
| KVN: Ky | y |
Notes
There were problems with some diagnostic plots of this experiment due to yet poorly understood errors of fourfit and other HOPS components.
