ML006A

    Version as of 18:23, 17 May 2024

    to this version.

    Return to Version archive.

    View current version

    ML006A Correlation Report

    General information

    Current Status

    Correlation finished, data is ready to be released.

    Fringes

    Station Code Fringes Plots Comments
    Ef B yes

    Fringe overview of all baselines (all of C181A) 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.

    c181a_FRINGE_RfAnt_Ef_LLRR_AllSrc.pdf

    Examples of fourfit fringe plots:

    Same for all antennas below unless otherwise noted.

     
    On X yes c181a_FRINGE_RfAnt_On_LLRR_AllSrc.pdf  
    Ys Y n/a c181a_FRINGE_RfAnt_Ys_LLRR_AllSrc.pdf no observation in this subproject due to bad weather
    Mh Z yes

    c181a_FRINGE_RfAnt_Mh_LLRR_AllSrc.pdf

    c181a_No0024_3C279_AZ_LL.pdfc181a_No0024_3C279_AZ_LR.pdf,
    c181a_No0024_3C279_AZ_RL.pdfc181a_No0024_3C279_AZ_RR.pdf

     
    Pv P n/a c181a_FRINGE_RfAnt_Pv_LLRR_AllSrc.pdf no observation in this subproject due to snow
    VLBA: Br b yes

    c181a_FRINGE_RfAnt_Br_LLRR_AllSrc.pdf

    preliminary:

    c181a_No0039_3C279_bG_LL.pdfc181a_No0039_3C279_bG_LR.pdf,
    no RLfringe, c181a_No0039_3C279_bG_RR.pdf

    final:

    all VLBA stations were starting recording late in c181a
    VLBA: Fd f yes

    c181a_FRINGE_RfAnt_Fd_LLRR_AllSrc.pdf

    preliminary:

    c181a_No0039_3C279_fG_LL.pdfc181a_No0039_3C279_fG_LR.pdf,
    c181a_No0039_3C279_fG_RL.pdfc181a_No0039_3C279_fG_RR.pdf

    final:

    all VLBA stations were starting recording late in c181a
    VLBA: Kp k yes c181a_FRINGE_RfAnt_Kp_LLRR_AllSrc.pdf all VLBA stations were starting recording late in c181a
    VLBA: La l yes c181a_FRINGE_RfAnt_La_LLRR_AllSrc.pdf all VLBA stations were starting recording late in c181a
    VLBA: Mk m yes c181a_FRINGE_RfAnt_Mk_LLRR_AllSrc.pdf all VLBA stations were starting recording late in c181a
    VLBA: Nl n yes

    c181a_FRINGE_RfAnt_Nl_LLRR_AllSrc.pdf

    preliminary:

    c181a_No0039_3C279_Gn_LL.pdfc181a_No0039_3C279_Gn_RR.pdf,
    no LR or RL fringe

    final:

    all VLBA stations were starting recording late in c181a
    VLBA: Ov o yes

    c181a_FRINGE_RfAnt_Ov_LLRR_AllSrc.pdf

    preliminary:

    c181a_No0039_3C279_Go_LL.pdf, no LR fringe,
    c181a_No0039_3C279_Go_RL.pdfc181a_No0039_3C279_Go_RR.pdf

    final:

    all VLBA stations were starting recording late in c181a
    VLBA: Pt p yes c181a_FRINGE_RfAnt_Pt_LLRR_AllSrc.pdf all VLBA stations were starting recording late in c181a
    GBT: Gb G yes

    c181a_FRINGE_RfAnt_Gb_LLRR_AllSrc.pdf

    preliminary:

    c181a_No0039_3C279_bG_LL.pdfc181a_No0039_3C279_bG_LR.pdf,
    no RL fringe, c181a_No0039_3C279_bG_RR.pdf

    c181a_No0039_3C279_fG_LL.pdfc181a_No0039_3C279_fG_LR.pdf,
    c181a_No0039_3C279_fG_RL.pdfc181a_No0039_3C279_fG_RR.pdf.

    c181a_No0039_3C279_Gn_LL.pdfc181a_No0039_3C279_Gn_RR.pdf,
    no LR or RL fringe

    c181a_No0039_3C279_Go_LL.pdf, no LR fringe,
    c181a_No0039_3C279_Go_RL.pdfc181a_No0039_3C279_Go_RR.pdf.

    final:

     
    ALMA: Aa A yes

    c181a_FRINGE_RfAnt_Aa_LLRR_AllSrc.pdf

    c181a_No0024_3C279_AZ_LL.pdfc181a_No0024_3C279_AZ_LR.pdf,
    c181a_No0024_3C279_AZ_RL.pdfc181a_No0024_3C279_AZ_RR.pdf

     

    ______________________________________________________________

    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.

    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 products.

    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.

    Post-Correlation checks

    Residuals

    plotRes_A.png

    plotRes_b.png

    plotRes_n.png

    FITS completeness (pclist)

    legend:

    o -- station scheduled and fully accounted for in the fits file
    42 (or another number) -- station scheduled, but data found 
                              only for 42% of the scheduled interval
    x -- station scheduled, but corresponding entry not found in the fits file
    . -- station not scheduled
    

    ml006a.fits:

                                          GB EF ON YS PV MH AA AA NL FD PT LA OV KP BR MK
    c181a_001D2D No0002    3C279 3mm_RDBE .  o  o  x  x  o  x  x  .  .  .  .  .  .  .  .  
    c181a_003D2D No0004    3C279 3mm_RDBE .  o  o  x  x  o  x  x  .  .  .  .  .  .  .  .  
    c181a_005D2D No0007    3C279 3mm_RDBE .  o  o  x  x  o  42 42 .  .  .  .  .  .  .  .  
    c181a_007D2D No0009    3C279 3mm_RDBE .  o  o  x  x  o  x  x  .  .  .  .  .  .  .  .  
    c181a_009D2D No0012    3C279 3mm_RDBE o  o  o  x  x  o  o  o  .  .  .  .  .  .  .  .  
    c181a_011D2D No0015    3C279 3mm_RDBE o  o  o  x  x  o  o  o  .  .  .  .  .  .  .  .  
    c181a_013D2D No0017    3C279 3mm_RDBE o  o  o  x  x  o  o  o  .  .  .  .  .  .  .  .  
    c181a_015D2D No0019    3C279 3mm_RDBE o  o  o  x  x  o  o  o  80 .  .  .  .  .  .  .  
    c181a_017D2D No0022    3C279 3mm_RDBE o  o  o  x  x  o  o  o  66 .  .  .  .  .  .  .  
    c181a_019D2D No0024    3C279 3mm_RDBE o  o  o  x  x  o  o  o  80 80 .  .  .  .  .  .  
    c181a_021D2D No0027    3C279 3mm_RDBE o  o  o  x  x  .  o  o  66 66 .  .  .  .  .  .  
    c181a_023D2D No0029    3C279 3mm_RDBE o  o  o  x  x  .  o  o  80 80 80 80 .  80 .  .  
    c181a_024D2D No0031    3C279 3mm_RDBE o  o  o  x  x  .  o  o  66 66 x  66 80 66 .  .  
    c181a_025D2D No0032    3C279 3mm_RDBE o  o  o  x  x  .  o  o  66 66 x  66 80 66 .  .  
    c181a_026D2D No0034    3C279 3mm_RDBE o  o  .  x  x  .  o  o  66 66 x  66 85 66 85 .  
    c181a_027D2D No0035    3C279 3mm_RDBE o  o  .  x  x  .  o  o  66 66 x  66 85 66 85 .  
    c181a_028D2D No0037    3C279 3mm_RDBE o  .  .  x  x  .  95 95 66 66 x  66 85 66 85 .  
    c181a_029D2D No0038    3C279 3mm_RDBE o  .  .  x  x  .  o  o  66 66 x  66 66 66 66 .  
    c181a_030D2D No0039    3C279 3mm_RDBE o  .  .  x  x  .  o  o  66 66 x  66 66 66 66 .  
    c181a_032D2D No0042    3C279 3mm_RDBE o  .  .  .  .  .  o  o  66 66 x  66 66 66 66 .  
    c181a_034D2D No0045    3C279 3mm_RDBE o  .  .  .  .  .  o  o  66 66 x  66 90 66 90 x  
    c181a_036D2D No0047    3C279 3mm_RDBE o  .  .  .  .  .  o  o  66 66 x  66 90 66 90 90 
    c181a_038D2D No0050    3C279 3mm_RDBE o  .  .  .  .  .  o  o  66 66 x  66 90 66 90 90 
    c181a_040D2D No0052    3C279 3mm_RDBE o  .  .  .  .  .  o  o  76 76 x  76 76 76 76 76