n21dk01 Correlation Report
General information
- Project: "Wideband spectral line VLBI study (Dongjin Kim) 22/43GHz 8Gbps"
- Epochs: G, H, I, J, E, K, L
- Station feedback:
Status
what | date |
Effelsberg transfer Epochs G and H complete, remainder postponed due EVN Session 2 VLBI (27 May-17 Jun) | xx.05.2021 |
Yebes transfer Epochs G, H, I, J, E complete | 11.06.2021 |
Fringes Ef-Ys K-band and Ef-Ys Q-band, epoch G | 10.06.2021 |
KVN Yonsei started transfer of epoch G | 16.06.2021 |
pending: Effelsberg transfer Epochs I, J, E, K, L | xx.xx.xxxx |
A Priori
Yebes
- J. Gonzales: rate 1.17e-13 s/s, offsets in logs named n1k01?ys.log on vlbeer.
- Did not observe K and L due to heavy rain and broken shutter.
- Transferred the data of G, H, I, J, E.
- VEX freq block sidebands UUUU UUUU LLLL LLLL rather than the default UL UL ... from SCHED
- Epoch E: scan No0003 (142-0814) file empty or not recorded
Effelsberg
- U. Bach, etransferred epochs G & H. Pending transfer of the remaining epochs.
- Offset +19.3 usec in G
- Logs named ndk01g, ndk01h, and later n1k01i, n1k01j, n1k01k, n1k01l, n1k01e on vlbeer.
- H-maser rate same as in GMVA f211a, i.e., 2.05e-13 s/s.
- VEX freq block sidebands UUUU LLLL rather than the default UL UL ... from SCHED.
- Epoch G: wind and bad weather, first part ot track unusable, not on source until ~18:30 UT
KVN Yonsei, Ulsan, Tamna
- Waiting for e-transfer...
- Table of clock offsets.
- H-maser rate?
DiFX
Special setup for correlation, because Effelsberg does not have simultaneous K and Q capability.
- One v2d file for K-band, with "freqIds=..." to select only K-band recorded frequency IDs
- Another v2d file for Q-band, with "freqIds=..." to select only Q-band recorded frequency IDs, and "deltaClock=.." to include any clock offsets over K-band reference clocks
- Zoom bands of 64 MHz due to KVN 2ch x 512 MHz, versus Ef and Ys with 64 MHz wide channels in USB/LSB
- Same zoom bands also added to Ef and Ys in order to produce all-USB visibility data; otherwise HOPS fourfit issues
Fringes
Station | Code | Fringes | Plots | Comments |
Ef | | | | |
Ys | | | | |
Kt | | | | |
Ku | | | | |
Ky | | | | |
Notes
Post-Correlation checks
Residuals
FITS completeness (pclist)