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- NN scans 093-1915 to 093-2045 have no Mark6 data (only one 20-byte header) in either polarization, log says NN good starting from time 093-2030 which is before scan No0290
- GBT recorded 42 of 85 scheduled 86 GHz scans, no usable scans till 093-1900 ie No0277 inclusive per AGMVA21A_233_03_log.txt, similarly it would appear for rest of track from 094-0000 system setup faulty as well per AGMVA21B_162_01_log.txt but manual GBT log says no issues in this part of the track
- GLT no fringes, with the same settings that yielded GLT fringes in C221A, nor within +-256 us nor 1 sec offsets of that. Thje observing log on EHT 2022 wiki notes no particular issues and shows good Tsys of 180K-300K throughout the track with elevations of 15deg-34deg. Other technical issue?
- GLT update: Tuning error at GLT found 03/2023, they were unknowingly 63 MHz off after C221A
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Version from 13:39, 24 May 2023
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Version as of 13:39, 24 May 2023
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- NN scans 093-1915 to 093-2045 have no Mark6 data (only one 20-byte header) in either polarization, log says NN good starting from time 093-2030 which is before scan No0290
- GBT recorded 42 of 85 scheduled 86 GHz scans, no usable scans till 093-1900 ie No0277 inclusive per AGMVA21A_233_03_log.txt, similarly it would appear for rest of track from 094-0000 system setup faulty as well per AGMVA21B_162_01_log.txt but manual GBT log says no issues in this part of the track
- GLT no fringes, with the same settings that yielded GLT fringes in C221A, nor within +-256 us nor 1 sec offsets of that. Thje observing log on EHT 2022 wiki notes no particular issues and shows good Tsys of 180K-300K throughout the track with elevations of 15deg-34deg. Other technical issue?
- GLT update: Tuning error at GLT found 03/2023, they were unknowingly 63 MHz off after C221A
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