Table of contents
- 1. C221A Correlation Report
- 1.1. General information
- 1.2. Status
- 1.3. Fringes
- 1.4. Notes
- 1.5. Post-Correlation checks
- 1.5.1. 3mm Residuals
- 1.5.2. 7mm Residuals
- 1.5.3. FITS completeness (pclist)
- 1.5.3.1. 7mm
C221A Correlation Report
General information
- Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
- Station feedback: https://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr22/feedback_apr22.asc
- Mopra 86 GHz rx is linear polarized
Status
| what | date |
|---|---|
| Started v1 correlation of 3mm | 22 Nov 2022 |
| Started v1 correlation of 7mm | 24 Nov 2022 |
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 | yes, 3mm No0136 Gl-Nn | freq setup shifted from C211 | ||
| 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, No00229 Kp-Kt-Ky-At-Mp | No0235 ATCA refant W45 | ||
| KVN-EU-VLBA-Aus | yes, arrays tied using Nn Kp Ky At | |||
| ... | ||||
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 - Severe OpenMPI issue, all of the 7 scans that have >=15 stations fail OpenMPI MPI_Init() with "num local peers failed". Fails also with a simple MPI Hello World program launched with the same mpi machinesfile. The MPI_Init() strangle succeeds when the machinesfile is first sorted alphabetically i.e. the exactly same nodes are used, merely started in different order.
To correlate the 7 scans, had to reduce the nr of stations by dropping those stations that had bad data (Pv, Ys, Pt, La).
Post-Correlation checks
3mm Residuals
7mm Residuals
FITS completeness (pclist)
7mm
NL FD PT LA KP OV BR MK HN SC c221a_1000 No0002 BLLAC 43ghz o o o o o o o o o o c221a_1001 No0004 3C454.3 43ghz o o o o o o o o o o c221a_1002 No0006 BLLAC 43ghz o o o o o o o o o o c221a_1003 No0009 3C454.3 43ghz o o o o o o o o o o c221a_1004 No0012 BLLAC 43ghz o o o o o o o o o o c221a_1005 No0015 3C454.3 43ghz o o o o o o o o o o c221a_1006 No0018 BLLAC 43ghz o o x o o o o o o 11 c221a_1007 No0022 3C454.3 43ghz o o x o o o o o o o c221a_1008 No0025 BLLAC 43ghz o o x o o o o o o o c221a_1009 No0029 3C454.3 43ghz o o x o o o o o o o c221a_1010 No0033 BLLAC 43ghz o o x o o o o o o o c221a_1011 No0037 3C454.3 43ghz o o x o o o o o o o c221a_1012 No0039 BLLAC 43ghz o o x o o o o o o . c221a_1013 No0043 3C454.3 43ghz o o x o o o o o o . c221a_1014 No0047 BLLAC 43ghz o o x o o o o o o . c221a_1015 No0051 3C454.3 43ghz o o x o o o o o o . c221a_1016 No0053 BLLAC 43ghz o o x o o o o o o . c221a_1017 No0057 3C454.3 43ghz o o x o o o o o . . c221a_1018 No0061 BLLAC 43ghz o o x o o o o o o . c221a_1019 No0065 3C454.3 43ghz o o x o o o o o . . c221a_1020 No0067 BLLAC 43ghz o o x o o o o o . . c221a_1021 No0071 3C454.3 43ghz o o x o o o o o . . c221a_1022 No0075 BLLAC 43ghz o o x o o o o o . . c221a_1023 No0079 3C454.3 43ghz o o x o o o o o . . c221a_1024 No0081 BLLAC 43ghz o o x o o o o o . . c221a_1025 No0085 BLLAC 43ghz o o x o o o o o . . c221a_1026 No0089 3C84 43ghz o o x o o o o o o o c221a_1027 No0093 0420-014 43ghz o o x o o o o o o o c221a_1028 No0096 3C84 43ghz o o x o o o o o o o c221a_1029 No0099 0420-014 43ghz o o x o o o o o o o c221a_1030 No0103 3C84 43ghz o o x o o o o o o o c221a_1031 No0108 0420-014 43ghz o o x o o o o o o o c221a_1032 No0110 1156+295 43ghz . o x o o o o . o o c221a_1033 No0114 1156+295 43ghz . o x o o o o . o o c221a_1034 No0242 2013+370 43ghz o o x o o . . . x o c221a_1035 No0246 2013+370 43ghz o o x o o . . . o o c221a_1036 No0250 BLLAC 43ghz o o x o o o o . o o c221a_1037 No0254 2013+370 43ghz o o x o o o o o o o c221a_1038 No0258 2013+370 43ghz o o o o o o o o o o c221a_1039 No0262 BLLAC 43ghz o o o o o o o o o o c221a_1040 No0266 2013+370 43ghz o o o o o o o o o o c221a_1041 No0270 2013+370 43ghz o o o o o o o o o o c221a_1042 No0274 2013+370 43ghz o o o o o o o o o o c221a_1043 No0278 BLLAC 43ghz o o o o o o o o o o c221a_1044 No0282 2013+370 43ghz o o o o o o o o o o c221a_1045 No0286 3C454.3 43ghz o o o o o o o o o o c221a_1046 No0290 2013+370 43ghz o o o o o o o o o o c221a_1047 No0294 2013+370 43ghz o o o o o o o o o o c221a_1048 No0298 BLLAC 43ghz o o o o o o o o o o c221a_1049 No0302 2013+370 43ghz o o o o o o o o o o c221a_1050 No0306 2013+370 43ghz o o o o o o o o o o c221a_1051 No0310 3C454.3 43ghz o o o o o o o o o o c221a_1052 No0314 2013+370 43ghz o o o o o o o o o o c221a_1053 No0318 2013+370 43ghz o o o o o o o o o o c221a_1054 No0322 BLLAC 43ghz o o o o o o o o o o c221a_1055 No0326 2013+370 43ghz o o o o o o o x x o c221a_1056 No0330 2013+370 43ghz o o o o o o o x x o c221a_1057 No0334 3C454.3 43ghz o o o o o o o x x o c221a_1058 No0336 2013+370 43ghz o o o o o o o x x . c221a_1059 No0338 2013+370 43ghz o o o o o o o x x . c221a_1060 No0340 BLLAC 43ghz o o o o o o o x x o c221a_1061 No0342 2013+370 43ghz o o o o o o o x x . c221a_1062 No0344 2013+370 43ghz o o o o o o o o o . c221a_1063 No0346 3C454.3 43ghz o o o o o o o o o o c221a_1064 No0348 2013+370 43ghz o o o o o o o o . . c221a_1065 No0350 2013+370 43ghz o o o o o o o o . . c221a_1066 No0352 BLLAC 43ghz o o o o o o o o o . c221a_1067 No0354 3C454.3 43ghz o o o o o o o o o . c221a_1068 No0356 BLLAC 43ghz o o o o o o o o o . c221a_1069 No0358 BLLAC 43ghz o o o o o o o o o . c221a_1070 No0360 BLLAC 43ghz o o o o o o o o o .
