2018 Apr (c181)

    Correlation Status

    Project

    Code

    Block

    Code

    Sources DOYS UT Freq Stations Status PI Comment
      F181A 3C454.3, IKTAU (SiO line at 86225.06105 MHz), 3C120 102 1200-1400   Eb Ef Mh On Pv Ys     Fringe test
    ML006A C181A 3C279 102-103

    2200-0525

    86GHz

    Pv Ef Ys On Mh GBT VLBA ALMA

    correlated, released

    LOBANOV

     

    MM013A

    C181A Fermi sources: OJ287, 3C345, 1510-089, 1633+38, 0235+164, 3C120 102-104 2330-0635 86GHz

    Pv Ef Ys On Mh KVN VLBA GLT

    correlated, released

    MARSCHER

    non-ALMA scans

    ML006B

    C181A 3C273, 3C279 103-104 2000-0635 86GHz

    Pv Ef Ys On Mh GBT VLBA ALMA GLT

    correlated, released

    LOBANOV

     

    MJ001A

    C181B SgrA* - I: 3C273, 3C279, NRAO530, SGR_A, 1921-293 104 0645-1435 86GHz GBT VLBA ALMA correlated, released JOHNSON  

    MM013B

    C181C Fermi sources: 3C84, 3C111, 3C120, 0836+710, 0954+658, 0716+714, 3C454.3, CTA102 104-105 1445-1922 86GHz Pv Ef Ys On Mh KVN VLBA GLT correlated, released MARSCHER non-ALMA scans

    ML005

    C181C M87, 3C273, 3C279 104-105 2200-1037 86GHz Pv Ef Ys On Mh GBT VLBA ALMA GLT correlated, released LU  

    MM013C

    C181D Fermi sources: BLLAC, 2013+370 105-106 1930-0652 86GHz Pv Ef Ys On Mh KVN VLBA correlated, released MARSCHER non-ALMA scans

    MG004

    C181D OJ287, 1055+018 105-106 1930-0652 86GHz Pv Ef Ys On Mh GBT VLBA ALMA GLT correlated, released GOMEZ  

    MM013D

    C181E Fermi sources 106-107 0700-0635 86GHz Pv Ef Ys On Mh KVN VLBA GLT correlated, released MARSCHER  

    MJ001B

    C181F SgrA* - I 107 0645-1428 86GHz GBT VLBA ALMA correlated, released JOHNSON  

    Session media

    Station Type Size VSN / Location Sent
    PV Mark6   MPIH%015 28.3.2018
    Eb Flexbuf      
    Ys Flexbuf      
    On Flexbuf      
    Mh Flexbuf      
    KVN Flexbuf      
    GBT Mark5      
    ALMA Mark6 4 x 64 TB MPI%6405 MPI%6406 MPI%6407 MPI%6408 7.3.2018
    VLBA Fd Mark5      
    VLBA Nl Mark5      
    VLBA Ov Mark5      
    VLBA Pt Mark5      
    VLBA Kp Mark5      
    VLBA La Mark5      
    VLBA Mk Mark5      
    GLT Mark6 4 x 32TB MPI%3204 MPI%3205 MPI%3210 MPI%3216 16.3.2018

    General comments

    GBT calibration info (Tsys files for download) and other related information for this session can be found here:

    https://safe.nrao.edu/wiki/bin/view/GB/Observing/WbandVLBACal/C181

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    Comments

    Viewing 2 of 2 comments: view all
    The Tsys infromation for ALMA from QA2 is here:
    https://home.strw.leidenuniv.nl/~cgoddi/app_qa2/VLBI_corrs/GMVA/

    The antab file can be found in the directory ending with ...APP.artifacts.
    Out of four .ANTAB files present in that directory ...BB_1... is the one you need to use for the GMVA, which uses SpW=0 at 86.268 GHz.
    Posted 11:13, 5 Jun 2019
    The GLT has inserted the polarizer plates in wrong orientation. After fourfit the cross and parallel hands appear to have similar SNR. This indicates high elliptical polarization. Therefore the closure phases to GLT suffer from extreme cross-talk, and should not be used.
    Posted 11:17, 5 Jun 2019
    Viewing 2 of 2 comments: view all
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