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= Bolometer's Observation: = | = Bolometer's Observation = |
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== Setup the Bolometer: == Pako> '''@wbolo''' !'' Mambo2, central pixel 53, short onoff (@onf4)'' |
== Setup the Bolometer == Pako> '''@wbolo''' !'' Mambo2, central pixel 53, short onoff (onf4), setup the bolometer commands'' |
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== Sources Catalog: == | == Sources Catalog == |
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<!> Pako is ''case-sensitive'' for the source names. | <!> Pako is ''cASe-SenSiTIve'' for the source names. |
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== Skydip, pointing, skydip : == | == Skydip, pointing, skydip == |
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Pako> '''focus 1.1''' [[BR]] | Pako> '''bf''' [[BR]] |
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== Calibration: == | == Calibration == |
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Pako> '''catalog source ihet [[BR]] | Pako> '''catalog source ihet''' [[BR]] |
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<!> You may do a short @onf4 after a normal pointing to monitor the pointing source flux. | <!> You may do a short ''onf4'' after a normal pointing to monitor the pointing source flux. |
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== Onoff and Map: == | == Onoff and Map == |
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Pako>'''@onf 20 30''' !''Perform an on-off integration of '''20''' subscans of 60s with a wobbler throw of '''30"''' '' [[BR]] | Pako>'''onf 20 30''' !''Perform an on-off integration of '''20''' subscans of 60s with a wobbler throw of '''30"''' '' [[BR]] |
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Pako> '''bsw throw''' !''Setup the wobbler throw'' [[BR]] | |
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'''@roff20''' : set the pixel 20 for on-off (most sensitive one). [[BR]] '''@roff53''' : set the central pixel 53 (default with @wbolo) |
'''roff20''' : set the pixel 20 for on-off (most sensitive one). [[BR]] '''roff53''' : set the central pixel 53 (default with @wbolo) |
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== Typical Bolo Session: == | == Typical Bolo Session == |
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Pako> @p60 | Pako> p60 |
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Pako> @p60 | Pako> p60 |
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Pako> @onf4 ! Measure the flux of Mars | Pako> onf4 ! Measure the flux of Mars |
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Pako> @roff20 | Pako> roff20 |
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Pako> @onf4 ! Why not ? | Pako> onf4 ! Why not ? |
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Pako> @onf 20 35 ! Do an on-off integration of 20 subscans of 60s | Pako> onf 20 35 ! Do an on-off integration of 20 subscans of 60s |
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== List of Commands == | |
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= Heterodyne Observation: = | These commands are specific of the Pool observations with the bolometer. || Command || Description || || '''@wbolo''' || Setup the default configuration and the commands. || || '''bf''' || Perform a focus. || || '''bmap''' ''Az'' ''El'' ''Elstep'' ''Azvel'' || Perform an OTF map with an extent ''Az''x''El'' (arcsec), an elevation step ''Elstep'' (arcsec) and a scan velocity ''Azvel'' (arcsec/s) || || '''bsw''' ''Throw'' || Setup the wobbler ''Throw'' (arcsec). || || '''bt''' || Perform a bolotip at the current azimuth. || || '''btaz''' ''Az'' || Perform a bolotip at the azimuth ''Az''. || || '''gain'''''Val'' || Setup the bolometer gain at ''Val'': use ''gain 10'' for all but ''2'' for Mars, Mercury (Venus, Saturn, Jupiter). || || '''onf4''' || Quick 1 minute onoff on a strong source (calibrator). || || '''onf''' ''Nsub'' ''Throw'' || Perform an onoff of ''Nsub'' subscans of 1 minute with a wobbler ''Throw'' (arcsec). || || '''p40''' || Perform a pointing (40 arcsec) on a week source. <!> NCS problem still. || || '''p60''' || Perform a pointing (60 arcsec) on a strong source. <!> To be preferred currently || || '''roff20''' || Set the reference channel 20, the most sensitive on ''MAMBO2'' (onoff).|| || '''roff53''' || Set the reference channel 53, the central one on ''MAMBO2'' (mapping).|| = Heterodyne Observation = |
Bolometer's Observation
The most important commands of the old system have been adapted to the NCS. Here is a typical starting sequence for the bolometer.
Setup the Bolometer
Pako> @wbolo ! Mambo2, central pixel 53, short onoff (onf4), setup the bolometer commands
Sources Catalog
Pako> catalog source pool ! Setup the project source catalog BR Pako> catalog source ihet ! Setup the pointing/calibration source catalog
Pointing sources: J1419+240 not 1419+240. BR
Pako is cASe-SenSiTIve for the source names.
Skydip, pointing, skydip
Pako> bt !Skydip at the current azimuth+start
Every 2 hours in stable atmospheric condition.
Pako> p40 !Short pointing for weak sources+start BR Pako> p60 !Long pointing for strong sources+start BR Pako> set pointing azcor elcor !Correct the pointing with azcor and elcor. Correction from MOPSIC (@p or @psn for weak source)
Pako> bf BR Pako> start ! Start the focus BR Pako> set focus sfcz !Correct the focus with sfcz. Correction from MOPSIC (@f or @fsn for weak sources) BR Do a focus when atmospheric conditions are changing, typically after sunset/sunrise
Before an Onoff, be sure you are pointing with the right pixel (20).
Do a pointing before each Onoff or map if they are longer than 30 mn.
Calibration
Calibration on a [primary|secondary] calibrator
Pako> catalog source ihet BR Pako> source Calibrator_Name BR Pako> p60 BR Pako> set pointing azcor elcor BR Pako> onf4 ! Short Onoff integration (4 Subscans of 10 s) with central pixel 53
You may do a short onf4 after a normal pointing to monitor the pointing source flux.
Onoff and Map
Pako>onf 20 30 !Perform an on-off integration of 20 subscans of 60s with a wobbler throw of 30" BR Pako> @onf30 !Some project may have their own on-off macro
Don't try to make very long integration, you may loose the complete scan. In such a case use a loop.
Pako> bsw throw !Setup the wobbler throw BR Pako> bmap laz lel elstep azv !Setup an OTF map of laz azimuth length, lel elevation length, elstep elevation step and azv azimuth speed (arcsec/s). BR Pako> start !Start the map after you checked it is correct (it gives you the total integration time).
The speed should not be larger than ~8 arcsec/sec
NOTE: BR roff20 : set the pixel 20 for on-off (most sensitive one). BR roff53 : set the central pixel 53 (default with @wbolo) BR BR
Typical Bolo Session
A typical starting session could be as following:
Pako> @wbolo Pako> source Mars Pako> gain 2 ! special case for Mars, normal gain is 10 Pako> p60 Pako> bt !skydip Pako> p60 Pako> set pointing 2. -6. Pako> focus 1.1 Pako> start Pako> set focus -3.5 Pako> onf4 ! Measure the flux of Mars Pako> gain 10. Pako> @wbolo Pako> set project 175_05 Pako> catalog source ihet Pako> source J0854+201 ! Pointing source Pako> roff20 Pako> p40 Pako> set pointing 0.4 -6.4 Pako> onf4 ! Why not ? Pako> catalog source pool Pako> source 0927+2001 !Project source Pako> onf 20 35 ! Do an on-off integration of 20 subscans of 60s ! with a wobbler throw of 35¨. Pako> Ad Nauseam ...
The set project Proj_Id will be necessary until it is automatically included in the source catalog.
List of Commands
These commands are specific of the Pool observations with the bolometer.
Command |
Description |
@wbolo |
Setup the default configuration and the commands. |
bf |
Perform a focus. |
bmap Az El Elstep Azvel |
Perform an OTF map with an extent AzxEl (arcsec), an elevation step Elstep (arcsec) and a scan velocity Azvel (arcsec/s) |
bsw Throw |
Setup the wobbler Throw (arcsec). |
bt |
Perform a bolotip at the current azimuth. |
btaz Az |
Perform a bolotip at the azimuth Az. |
gainVal |
Setup the bolometer gain at Val: use gain 10 for all but 2 for Mars, Mercury (Venus, Saturn, Jupiter). |
onf4 |
Quick 1 minute onoff on a strong source (calibrator). |
onf Nsub Throw |
Perform an onoff of Nsub subscans of 1 minute with a wobbler Throw (arcsec). |
p40 |
Perform a pointing (40 arcsec) on a week source. |
p60 |
Perform a pointing (60 arcsec) on a strong source. |
roff20 |
Set the reference channel 20, the most sensitive on MAMBO2 (onoff). |
roff53 |
Set the reference channel 53, the central one on MAMBO2 (mapping). |
Heterodyne Observation
Heterodyne observations are more complex in the sense there is much more options available. Since the NCS/Pako are still under heavy development, we give here a typical session. Some commands are the same that with bolometer observations. If the macros written by the PIs are not working ask the Pool coordinator or the AoD.
Pako> @setup-186_05-1850 ! Setup the frequencies/receivers. Tuning... Pako> source Mars Pako> pointing ! Check if continuum backends are set Pako> start Pako> set pointing -1. 2. ! The correction are given using the mira program Pako> focus 2.0 Pako> start Pako> set focus -2.2 ! The correction is given using the mira program Pako> cata source ihet Pako> source J2240+245 ! Pointing source Pako> pointing Pako> start Pako> set point -1. 0.5 Pako> catalog source pool Pako> source N821 Pako> @backends-186_05 ! maybe included in the following macro Pako> @target-wsw-186_05 Number of Loops= 5 ! according the indications of the PI. Pako> @setup-186_05-1850 ! Setup the continuum backend. Pako> source J2240+245 Pako> pointing Pako> start Pako> set point -1. 0.5 Pako> catalog source pool Pako> source N822 Pako> @backends-186_05 Pako> @target-wsw-186_05 Number of Loops= 5 Pako> Ad Nauseam ...