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lbaops:lbamay2012:re07a
Table of Contents
re07a
| Description | RadioAstron/LBA Vela pulsar observations |
|---|---|
| Antennas | Mp-Ti-Ho-Pa-Hh |
| Start | 131 09:00:00 |
| Stop | 131 13:00:00 |
| PI | Yuri Kovalev |
Setup ra18cm2:
| Station Modes | Mp Ho Pa |
|---|---|
| Channel 1 | IFP#1-LO 1644 - 1660 MHz LSB RCP |
| Channel 2 | IFP#1-HI 1660 - 1676 MHz USB RCP |
| Channel 3 | IFP#2-LO 1644 - 1660 MHz LSB LCP |
| Channel 4 | IFP#2-HI 1660 - 1676 MHz USB LCP |
| DAS 1 Skyfreq | 1660 MHz |
| Bandwidth | 16 MHz |
| DAS Mode | 16mhz_ul (telescope) |
| Station Modes | Ti |
|---|---|
| Channel 1 | 1644 - 1660 MHz LSB LCP |
| Channel 2 | 1660 - 1676 MHz USB LCP |
| Bandwidth | 16 MHz |
| DAS Mode | Mark5 |
| Station Modes | Hh |
|---|---|
| Channel 1 | 1644 - 1660 MHz LSB RCP |
| Channel 2 | 1660 - 1676 MHz USB RCP |
| Channel 3 | 1644 - 1660 MHz LSB LCP |
| Channel 4 | 1660 - 1676 MHz USB LCP |
| Bandwidth | 16 MHz |
| DAS Mode | Mark5 |
Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/radioastron/re07a
Comments:
NOTE NOTE NOTE NOTE
This is a non-standard setup including
- USB/LSB DAS profile
- Turn noise cal off
- Turn DAS Gain loop off
- Turn phasecal off if present
Disabling Noise Cal
ATCA: type òÀÜset diode offòÀÝ in caobs
Mopra: In attest under òÀÜnoisclòÀÝ, select òÀÜLSNoiseòÀÝ to off . (to confirm with Tasso)
Parkes: pkmc òÆÒ òÀÜCal Control UnitòÀÝ òÆÒ select current Rx on matrix and set to òÀÜoffòÀÝ
Disabling Noise Cal (ATNF DAS GUI)
- Adjust external attenuation so that the IF level is approx mid band
- Select òÀÜDetailsòÀÝ under òÀÜMonitor ViewòÀÝ
- Monitor the òÀÜLevelòÀÝ value for IFP#1 and IFP#2 and estimate a time averaged value (Tid only needs to worry about one IFP)
- Record the two average level values
- Under òÀÜConfig SftwòÀÝ select òÀÜFilters òÀÓ> Band SpliteròÀÝ
- Set òÀÜGain ControlòÀÝ to Manual for both IFP (in the lower right region under òÀÜStatisticsòÀÝ
- Set the two Gain levels to 4*(255-Level) where level is the value to measured above
- Click the òÀÜConfig HdwòÀÝ button
- On the òÀÜDetails Monitor view' display check the Level is ~ 128
- Adjust the attenuation if the level wanders away too much from 128 - each number is ~ 0.1dB.
- Monitor VLBI sampler statistics stay around nominal 17.3%/32.7%
Observing comments for each antenna:
Observing Logs
Parkes onsource flagging
ATCA onsource flagging
Mopra onsource flagging
Mopra Tsys
(plot)
Parkes Tsys
Weather
Monica log information - EXPERIMENTAL:
lbaops/lbamay2012/re07a.txt ˆ§ Last modified: 2015/12/18 16:38 (external edit)
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