Table of contents
- 1. Y191A Correlation Report
- 1.1. General information
- 1.2. Status
- 1.3. Fringes
- 1.4. Notes
Y191A Correlation Report
General information
- The purpose of this observation was to test the new Ys dual-pol receiver.
- Only two antennas participated, Pico Veleta and Yebes.
- Test time: 14 March (day 73) 2019, 10:00-12:50UT
- Two sources observed, 3C345 (scans No0001-4) and 3C84 (scans No0005-12)
Status
Parts of a few scans were correlated, test is a success.
Fringes
| Baseline | Code | Fringes | Plots | Comments |
|---|---|---|---|---|
| Pv-Ys | PY | Yes | New dual-pol receiver: Scan No0003: y191a_No0003_3C345_PY_LL.pdf Scan No0009: y191a_No0009_3C84_PY_LL.pdf Returned to old single-pol receiver (RCP duplicates the LCP signal) Scan No0010: y191a_No0010_3C84_PY_LL.pdf | Strong parallel-hand fringes, no or weak cross-hand fringes. SNR of RR fringe is somewhat larger than the one for LL fringe. The amplitude vs channels plots of both LL and RR exhibit a strange "bowl" shape, with amplitudes in edge channels up to 4 times higher than the amplitude in the central ones. After the return back to the old single-pol receiver the problem persists (see LL and LR plots of scan No0010). |
Comments