Table of contents
- 1. MA008 Correlation Report
- 1.1. General
- 1.2. Status
- 1.3. Fringes
- 1.4. Notes
- 1.5. Post-Correlation checks
- 1.5.1. Residuals
- 1.5.2. reference A (ALMA), pols RR and LL
- 1.5.3. reference E (Effelsberg), pols RR and LL
- 1.5.4. FITS completeness (pclist)
MA008 Correlation Report
General
- Session info: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/
- Station feedback: http://www3.mpifr-bonn.mpg.de/div/vlbi/globalmm/sessions/apr17/feedback_apr17.asc
- ALMA QA2: 2016.1.01216.V
- This experiment has ALMA with 32x62.5MHz, VLBA with 2x128MHz channels, and most of the EVN with a 1x512MHz channel
- Two EVN stations (Yebes, Pico Veleta) observed in an incorrect backend mode, with a 32 MHz polyphase filterbank.
- Due to the issue at Yebes and Pico, three correlations were performed:
- a) standard ALMA correlation setup (58 MHz bands) discarding Yebes and Pico
- b) narrower band correlation setup (32 MHz bands) including Yebes and Pico
- c) mixed-band correlation with additional postprocessing of all baselines to Yebes and Pico Veleta (reconstructed 58 MHz bands)
- The correlation output (c) appears correct, but uses a new feature that has not been vigorously tested. The data are provided without guarantees. Details are given further below.
Status
| What | Date |
|---|---|
| Correlation of 58 MHz sub-bands finished | 9.8.2017 |
| Conversion to HOPS | 9.8.2017 |
| Fourfit fringe fitting | 9.8.2017 |
| Correlation of 32 MHz and mixed sub-bands finished | 20.8.2017 |
| Conversion to FITS with -u (union) option | 4.9.2017 |
| PCList check | 4.9.2017 |
| aedit plots, alist v6 residual rate and delay plots | 4.9.2017 |
| Material sent to PI | (pending final ALMA QA2 solutions) |
Fringes
| Station | Code | Fringes | Plots | Comments |
|---|---|---|---|---|
| AA | A | yes | ||
| Br | b | yes | ||
| Fd | f | yes | ||
| Kp | k | yes | ||
| La | l | yes | ||
| Mk | m | no | wide fringe search but no fringes found | |
| Nl | n | yes | ||
| Ov | o | no | ||
| Pt | p | poor | ||
| Ef | E | yes | Effelsberg DBBC2 | |
| Eb | B | yes | Effelsberg RDBE | |
| On | X | yes | ||
| Ys | Y | yes | polyphase FB mode, fringes in 32 MHz and reconstructed 58 MHz correlations | |
| Pv | P | yes | polyphase FB mode, fringes in 32 MHz and reconstructed 58 MHz correlations | |
| Mh | Z | no | faulty configuration |
Fringe plots: 58 MHz correlation (c) plots, plotted with Effelsberg as reference (No0028 Effelsberg PDF), Pico (No0011 Pico PDF), ALMA (No0028 ALMA PDF), VLBA Fd (No0060 VLBA-FD PDF)
Notes
- In case (c) the additional processing consisted of, first, correlation with 58 MHz bands and several narrower bands that fitted the Pico/Yebes recorded bands (e.g., 32 MHz, 24 MHz, 2 MHz and similar), secondly, after correlation passing the visibility data through a post-processing script to form 58 MHz bands on the affected baselines using the narrow bands (i.e., combining visibilities in frequency domain from 32 + 24 + 2 MHz bands), thirdly, spectrally averaging inside the 58 MHz bands from 3712 channels per band to the final goal of 116 channels per band that matches the originally intended correlation mode.
- Yebes began recording 20 seconds late in every scan
Post-Correlation checks
Residuals
reference A (ALMA), pols RR and LL
reference E (Effelsberg), pols RR and LL
FITS completeness (pclist)
Legend:
o: station is included in the FITS-file (data is complete)
x: expected station is missing in the FITS-file
number: percentage of job time in the FITS-file compared to expected time.
EF EB ON YS PV MH AA NL FD PT LA KP OV BR MK ma008_01 No0001 3C273 3mm_ddc o o o o o 93 . . . . . . . . . ma008_02 No0002 3C273 3mm_ddc o o o 93 o 93 . . . . . . . . . ma008_03 No0003 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_04 No0004 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_05 No0005 3C273 3mm_ddc o o 51 96 o 96 . . . . . . . . . ma008_06 No0006 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_07 No0007 3C273 3mm_ddc o o o 96 o 40 . . . . . . . . . ma008_08 No0008 3C273 3mm_ddc o o o 95 o 95 . . . . . . . . . ma008_09 No0009 3C279 3mm_ddc o o o 95 o 95 . . . . . . . . . ma008_10 No0010 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_11 No0011 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_12 No0012 3C273 3mm_ddc o o o o o 96 . . . . . . . . . ma008_13 No0013 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_14 No0014 3C273 3mm_ddc o o o 95 o 95 . . . . . . . . . ma008_15 No0015 3C279 3mm_ddc o o o 95 o 95 . . . . . . . . . ma008_16 No0016 3C273 3mm_ddc o o o o o 96 . . . . . . . . . ma008_17 No0017 3C273 3mm_ddc o o o 25 o 96 . . . . . . . . . ma008_18 No0018 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_19 No0019 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_20 No0020 3C273 3mm_ddc o o o 95 o 95 . . . . . . . . . ma008_21 No0021 3C279 3mm_ddc o o o o o o . . . . . . . . . ma008_22 No0022 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_23 No0023 3C273 3mm_ddc o o o 96 o 96 . . . . . . . . . ma008_24 No0024 3C273 3mm_ddc o o o 96 o 96 o o . . . . . . . ma008_25 No0025 3C273 3mm_ddc o o o 96 o o o o . . . . . . . ma008_26 No0026 3C273 3mm_ddc o o o 95 o 95 o o . . . . . . . ma008_27 No0027 3C279 3mm_ddc o o 54 o o 95 x o o . . . . . . ma008_28 No0028 3C273 3mm_ddc o o o 96 o 96 o o o o o o o o . ma008_29 No0029 3C273 3mm_ddc o o o o o 96 o o o o o o o o . ma008_30 No0030 3C273 3mm_ddc o o o 95 o 95 x o o o o o o o . ma008_31 No0031 3C279 3mm_ddc o o 59 95 o . o o o x o o o . . ma008_32 No0032 3C273 3mm_ddc o o o 96 o 96 o o o x o o o o . ma008_33 No0033 3C273 3mm_ddc o o o 96 o . o o o x o o o o . ma008_34 No0034 3C273 3mm_ddc o o o 96 o . x o o x o o o o . ma008_35 No0035 3C273 3mm_ddc o o o 95 o . o o o x o o o o . ma008_36 No0036 3C279 3mm_ddc o o o o o . o o o x o o o o . ma008_37 No0037 3C273 3mm_ddc o o o 96 o . o o o 77 o o o o . ma008_38 No0038 3C273 3mm_ddc o o o 95 o . x o o o o o o o . ma008_39 No0039 3C279 3mm_ddc . . . 95 o . o o o o o o o o . ma008_40 No0040 3C273 3mm_ddc . . . . . . o o o o o o o o o ma008_41 No0041 3C273 3mm_ddc . . . . . . o o o o o o o o o ma008_42 No0042 3C273 3mm_ddc . . . . . . o o o o o o o o o ma008_43 No0043 3C273 3mm_ddc . . . . . . o o o o o o o o o ma008_44 No0044 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_45 No0045 3C279 3mm_ddc . . . . . . . o o o o o o o o ma008_46 No0046 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_47 No0047 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_48 No0048 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_49 No0049 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_50 No0050 3C279 3mm_ddc . . . . . . . o o o o o o o o ma008_51 No0051 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_52 No0052 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_53 No0053 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_54 No0054 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_55 No0055 3C279 3mm_ddc . . . . . . . o o o o o o o o ma008_56 No0056 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_57 No0057 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_58 No0058 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_59 No0059 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_60 No0060 3C279 3mm_ddc . . . . . . . o o o o o o o o ma008_61 No0061 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_62 No0062 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_63 No0063 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_64 No0064 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_65 No0065 3C279 3mm_ddc . . . . . . . o o o o o o o o ma008_66 No0066 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_67 No0067 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_68 No0068 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_69 No0069 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_70 No0070 3C279 3mm_ddc . . . . . . . o o o o o o o o ma008_71 No0071 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_72 No0072 3C273 3mm_ddc . . . . . . . o o o o o o o o ma008_73 No0073 3C273 3mm_ddc . . . . . . . o o o o o o o o
