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- Track of the 3mm project MJ008 without Europe
- In-beam phase referencing (Sgr A* - IRS 7) where stations observed on a P-Half position between the two targets.
- Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
- Session feedback: https://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr25/feedback_apr25.asc
- ANTAB and log files are available at
- Station feedback:
- ALMA and GBT were out and essentially did not observe this track
- Although ALMA observed the first scan (No0072 on 1741-038; no fringes) they then stopped on a technical fault
- GBT notes that they "did not observe c251a and mj008". Their Mk6 recordings expectedly produced no fringes.
- FD and PT receivers were warm, KP mostly(?) stowed due to weather
- DiFX v2d has two addPhaseCentre=... statements which form the required additional phase centers on Sgr A* and IRS 7 away from the P-Half telescope pointing position.
- Scans that got scheduled on the targets directly (not P-Half) had the source names REALSGRA and REALIRS7.
- Source names for the additional phase centers around P-Half are SGRA_P (dataset: mj008-SGRA_P.fits) and IRS7_7 (dtaset:and
IRS7_7.mj008-IRS7_P.fits).The normal correlation has visbility data on calibirators and on P-Half (dataset: mj008-main-PHALF.fits)
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Version from 18:10, 20 Feb 2026
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- Track of the 3mm project MJ008 without Europe
- In-beam phase referencing (Sgr A* - IRS 7) where stations observed on a P-Half position between the two targets.
- Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
- Session feedback: https://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr25/feedback_apr25.asc
- ANTAB and log files are available at
- Station feedback:
- ALMA and GBT were out and essentially did not observe this track
- Although ALMA observed the first scan (No0072 on 1741-038; no fringes) they then stopped on a technical fault
- GBT notes that they "did not observe c251a and mj008". Their Mk6 recordings expectedly produced no fringes.
- FD and PT receivers were warm, KP mostly(?) stowed due to weather
- DiFX v2d has two addPhaseCentre=... statements which form the required additional phase centers on Sgr A* and IRS 7 away from the P-Half telescope pointing position.
- Scans that got scheduled on the targets directly (not P-Half) had the source names REALSGRA and REALIRS7.
- Source names for the additional phase centers around P-Half are SGRA_P and
IRS7_7.
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Version as of 18:13, 20 Feb 2026
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- Track of the 3mm project MJ008 without Europe
- In-beam phase referencing (Sgr A* - IRS 7) where stations observed on a P-Half position between the two targets.
- Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
- Session feedback: https://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr25/feedback_apr25.asc
- ANTAB and log files are available at
- Station feedback:
- ALMA and GBT were out and essentially did not observe this track
- Although ALMA observed the first scan (No0072 on 1741-038; no fringes) they then stopped on a technical fault
- GBT notes that they "did not observe c251a and mj008". Their Mk6 recordings expectedly produced no fringes.
- FD and PT receivers were warm, KP mostly(?) stowed due to weather
- DiFX v2d has two addPhaseCentre=... statements which form the required additional phase centers on Sgr A* and IRS 7 away from the P-Half telescope pointing position.
- Scans that got scheduled on the targets directly (not P-Half) had the source names REALSGRA and REALIRS7.
- Source names for the additional phase centers around P-Half are SGRA_P (dataset: mj008-SGRA_P.fits) and IRS7_7 (dtaset: mj008-IRS7_P.fits).The normal correlation has visbility data on calibirators and on P-Half (dataset: mj008-main-PHALF.fits)
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