Table of contents
- 1. MG004 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)
MG004 Correlation Report
General information
- A part of C181D
- Targets: OJ287, 1055+018
- 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
- Special processing was applied to all data in order to correlate mismatching frequency setups of ALMA and other GMVA stations. See details here.
Current Status
Correlation finished, data is ready to be released.
Fringes
| Station | Code | Fringes | Plots | Comments |
|---|---|---|---|---|
| Ef | B | yes | Fringe overview (including all of C181D) 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. Scans 18-20, 24-26, 28-29, 31, 33, 35-36 are missing from all diagnostic plots due to a difx2mark4 error. They are present in the final correlation products. c181d_FRINGE_RfAnt_Ef_LLRR_AllSrc.pdf Examples of fourfit fringe plots: c181d_No0038_1055+018_AB_LL.pdf, c181d_No0038_1055+018_AB_LR.pdf,
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 | yes | c181d_FRINGE_RfAnt_On_LLRR_AllSrc.pdf c181d_No0038_1055+018_AX_LL.pdf, c181d_No0038_1055+018_AX_LR.pdf,
| 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 | yes | c181d_FRINGE_RfAnt_Ys_LLRR_AllSrc.pdf c181d_No0038_1055+018_AY_LL.pdf, c181d_No0038_1055+018_AY_LR.pdf, c181d_No0038_1055+018_AY_RL.pdf, c181d_No0038_1055+018_AY_RR.pdf
| As usual, Ys observed LCP only, but it was also recorded as fake RCP, that's why there are common Ys "right" to other antenna's left fringes. 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 | yes | c181d_FRINGE_RfAnt_Mh_LLRR_AllSrc.pdf c181d_No0023_1055+018_AZ_LL.pdf, c181d_No0023_1055+018_AZ_LR.pdf, c181d_No0023_1055+018_AZ_RL.pdf, c181d_No0023_1055+018_AZ_RR.pdf
| 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 | yes | c181d_FRINGE_RfAnt_Pv_LLRR_AllSrc.pdf | 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 | yes | c181d_FRINGE_RfAnt_Br_LLRR_AllSrc.pdf c181d_No0039_OJ287_Ab_LL.pdf, c181d_No0039_OJ287_Ab_LR.pdf, c181d_No0039_OJ287_Ab_RL.pdf, c181d_No0039_OJ287_Ab_RR.pdf
| Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. |
| VLBA: Fd | f | yes | c181d_FRINGE_RfAnt_Fd_LLRR_AllSrc.pdf c181d_No0038_1055+018_Af_LL.pdf, c181d_No0038_1055+018_Af_LR.pdf, c181d_No0038_1055+018_Af_RL.pdf, c181d_No0038_1055+018_Af_RR.pdf | Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. |
| VLBA: Kp | k | yes | c181d_FRINGE_RfAnt_Kp_LLRR_AllSrc.pdf c181d_No0038_1055+018_Ak_LL.pdf, c181d_No0038_1055+018_Ak_LR.pdf, c181d_No0038_1055+018_Ak_RL.pdf, c181d_No0038_1055+018_Ak_RR.pdf | Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. |
| VLBA: La | l | yes | c181d_FRINGE_RfAnt_La_LLRR_AllSrc.pdf c181d_No0038_1055+018_Al_LL.pdf, c181d_No0038_1055+018_Al_LR.pdf, c181d_No0038_1055+018_Al_RL.pdf, c181d_No0038_1055+018_Al_RR.pdf
| Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. |
| VLBA: Mk | m | yes | c181d_FRINGE_RfAnt_Mk_LLRR_AllSrc.pdf c181d_No0039_OJ287_Am_LL.pdf, c181d_No0039_OJ287_Am_LR.pdf, c181d_No0039_OJ287_Am_RL.pdf, c181d_No0039_OJ287_Am_RR.pdf
| Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. Taken out for several scans because of USNO observing. General performance in c181d poor, with fringes mostly to ALMA. |
| VLBA: Nl | n | yes | c181d_FRINGE_RfAnt_Nl_LLRR_AllSrc.pdf c181d_No0038_1055+018_An_LL.pdf, c181d_No0038_1055+018_An_LR.pdf, c181d_No0038_1055+018_An_RL.pdf, c181d_No0038_1055+018_An_RR.pdf | Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. |
| VLBA: Ov | o | yes | c181d_FRINGE_RfAnt_Ov_LLRR_AllSrc.pdf c181d_No0038_1055+018_Ao_LL.pdf, no LR finge, c181d_No0038_1055+018_Ao_RL.pdf, c181d_No0038_1055+018_Ao_RR.pdf
| Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. |
| VLBA: Pt | p | yes | c181d_FRINGE_RfAnt_Pt_LLRR_AllSrc.pdf c181d_No0038_1055+018_Ap_LL.pdf, c181d_No0038_1055+018_Ap_LR.pdf, c181d_No0038_1055+018_Ap_RL.pdf, c181d_No0038_1055+018_Ap_RR.pdf
| Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. Taken out for several scans because of USNO observing. |
| GBT: Gb | G | yes | c181d_FRINGE_RfAnt_Gb_LLRR_AllSrc.pdf c181d_No0016_OJ287_AG_LL.pdf, c181d_No0016_OJ287_AG_RR.pdf, no LR or RL fringe | Baselines to EVN stations are "missing" due to a fourfit error. They are present in the final correlation products. For most of this experiment: unrecoverable read error of the Mk5 module, logs indicate bad weather, so this loss is considered non-critical |
| GLT: Gl | g | yes | c181d_FRINGE_RfAnt_Gl_LLRR_AllSrc.pdf c181d_No0038_1055+018_Ag_LL.pdf, c181d_No0038_1055+018_Ag_LR.pdf, c181d_No0038_1055+018_Ag_RL.pdf, c181d_No0038_1055+018_Ag_RR.pdf | Data analysis has shown that GLT recorded in unknown polarization instead of circular (most probably unknown elliptic). We may be able to recover the circular pols by special postprocessing, but at this moment IT SHOULD NOT BE USED FOR ANY POLARIMETRY and in general dealt with very carefully. |
| ALMA: Aa | A | yes | c181d_FRINGE_RfAnt_Aa_LLRR_AllSrc.pdf
c181d_No0016_OJ287_AG_LL.pdf, c181d_No0016_OJ287_AG_RR.pdf, c181d_No0023_1055+018_AZ_LL.pdf, c181d_No0023_1055+018_AZ_LR.pdf, c181d_No0038_1055+018_AB_LL.pdf, c181d_No0038_1055+018_AB_LR.pdf, c181d_No0038_1055+018_Af_LL.pdf, c181d_No0038_1055+018_Af_LR.pdf, c181d_No0038_1055+018_Ag_LL.pdf, c181d_No0038_1055+018_Ag_LR.pdf, c181d_No0038_1055+018_Ak_LL.pdf, c181d_No0038_1055+018_Ak_LR.pdf, c181d_No0038_1055+018_Al_LL.pdf, c181d_No0038_1055+018_Al_LR.pdf, c181d_No0038_1055+018_An_LL.pdf, c181d_No0038_1055+018_An_LR.pdf, c181d_No0038_1055+018_Ao_LL.pdf, no LR finge, c181d_No0038_1055+018_Ap_LL.pdf, c181d_No0038_1055+018_Ap_LR.pdf, c181d_No0038_1055+018_AX_LL.pdf, c181d_No0038_1055+018_AX_LR.pdf, c181d_No0038_1055+018_AY_LL.pdf, c181d_No0038_1055+018_AY_LR.pdf, c181d_No0039_OJ287_Ab_LL.pdf, c181d_No0039_OJ287_Ab_LR.pdf, c181d_No0039_OJ287_Am_LL.pdf, c181d_No0039_OJ287_Am_LR.pdf, _________________________________________________________________ | |
| KVN: Kt | t | yes | c181d_FRINGE_RfAnt_Kt_LLRR_AllSrc.pdf | |
| KVN: Ku | u | yes | c181d_FRINGE_RfAnt_Ku_LLRR_AllSrc.pdf | |
| KVN: Ky | y | yes | c181d_FRINGE_RfAnt_Ky_LLRR_AllSrc.pdf |
Notes
There were problems with some diagnostic plots of this experiment due to yet poorly understood errors of fourfit and other HOPS components. But this does not change the quality of the final correlation product.
GLT participated in this session for the first time as a test, and serious problems were detected when analysing its data. Be very carerful when using them.
