C221A Correlation Report
Status
| what | date |
| Started v1 correlation | 22.11.2022 |
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Fringes
| Station | Code | Fringes | Plots | Comments |
| Ef | | yes, 3mm No0128 50s SNR~200 Ef-On | | |
| Nn | | yes | | |
| On | | yes, 3mm No0128 50s SNR~200 Ef-On | | |
| Mh | | yes, 3mm No0048 100s SNR~15 Mh-On | | |
| Ys | | yes, 3mm No0209 30s SNR~90 On-Ys | | most scans linear pol |
| Pv | | no | | |
| Gl | | no | | no fringes with setup of GMVA 2021, nor with alternate setups |
| Kt | | yes, 3mm No0030 50s SNR~250 Kt-Ky, no Ku fringe | | |
| Ky | | yes, 3mm No0030 50s SNR~250 Kt-Ky | | |
| Ku | | yes, 3mm No0159 20s SNR~200 Ku-Ky | | most of track no Ku fringes,
only during No0155-No0181 |
| VLBA | | yes, intra VLBA and to Nn Ef | | |
| VLBA_OV | | yes | | unexpected fringes despite observing log noting rx warm and several maintenance outages while working on the cryo |
| VLBA_NL | | no | | unexpected, no fringes yet no issues noted in observing log; in some sense the opposite of the case of OV |
| VLBA_PT | | no | | expected, observing log indicates Pt had major hardware failures |
| Mp | | yes, 3mm No0235 Mp-Kt | | linear pol at Mp - PolConvert! |
| ATCA | | yes, 3mm No0235, At-Mp (circ x lin), At-Kt | | No0235 ATCA refant W45 |
| KVN-EU-VLBA-Aus | | yes, arrays tied using Nn Kp Ky At | | |
| ... | | | | |
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Notes
- PV joined late due to bad weather. The first scans were bad due to a setup problem. First good scan is 091-1415 No0265. Looks like the 3rd-last scan for PV, i.e. PV lost for most of this track.
- YS had technical problems in the beginning of c221a which were fixed after 091-0800 No0179. Missing quarter waves plates were inserted later. First good scan is 091-1415 No0267, the 3rd-last scan for YS.
- KU no fringes for the most part except No0155-No0181
- Mopra is linear polarized (PolConvert!) and had a different recording setup than scheduled, 2 x 2048 MHz at 85244.0 MHz USB.
- Mopra 20 scans of data lost at MPIfR due to VDIF conversion running while BeeGFS migration was ongoing, unfortunately no back on transfer server
- Atca had a non-standard setup, most likely 4 x 64 MHz USB at 86012.0 MHz and 86076.0 MHz
- AT had fringes AT-MP in realtime monitoring at 12:00:02 UT albeit low-SNR(?) and likely polswapped,
http://www.evlbi.atnf.csiro.au/RtFC/Apr2022/c221a/12:00:02/AT-MP-0.png - GLT produced no fringes in +-256 usec for standard VEX frequency setup as in C211A, no observer log
Post-Correlation checks
Residuals
FITS completeness (pclist)
