The standard setup configures the spectral correlator, selects the observing frequency, and leaves the system ready for receiver tuning. WideX is always activated by default, no further settings are required in the observing procedure.
!----------------------------------------------------------------------
!
! PR:SETUP-zzzz.OBS ! Setup procedure for project "zzzz"
!
! - Date: 12-mar-2011
! - Author:
! - Loc Contact:
! - Project: zzzz
! - Verified by:
!
! - Rating: B
! - Observing mode: track-sharing n sources/map/mosaic/detection
! - Array-configuration: C+D
! - Requested on-source time (h): 5+5
! - Requested sensitivity: 20mJy/80kHz
! - Other comments:
!
!------------------------------------------------------------------------
! Do not edit directly, but copy first then
!
! 1: replace "zzzz" by the project number
! 2: enter the respective information in the preamble
! 3: for summer projects, replace configuration "D" by "5D"
!
! All lines marked !**! must be customized.
! lines marked !* ! can be modified.
!
!------------------------------------------------------------------------
SET\END ! Finish previous observation
@ PR:defaults ! Restore defaults parameters
!
SET\PROJECT zzzz !**! Specify project number for further
!
SYMBOL GO "@ PR:observe-all zzzz" !* ! data processing
CATA SOU INTER_BASE:iram.sou !* !
CATA PHA INTER_BASE:phase-pdb.sou !* !
LET RECEIVER 1 !**! Choose observing receiver: receiver 1 @ 3mm
! receiver 2 @ 2mm
! receiver 3 @ 1mm
! receiver 4 @ 0.8mm
!
LET LOW_LIMIT 15. !* ! Low elevation limit 15 degrees
SAY "Project 'PROJECT' starting" !
!
SYMBOL NAME "NNNN EQ 2000 00:00:00.00 00:00:00.00 LSR 0.0" !**! Source
!
LET N_SUBSCANS 45 !* ! Scan length (in seconds)
LET N_SCANS 30 !* ! Number of scans on SOURCE (22.5 minutes = 30*45sec)
LET N_SOURCES 1 !* ! use SYMBOL NAME if N_SOURCES.EQ.1
IF (N_SOURCES.GT.1) THEN !
LET NAME_SOURCE[1:N_SOURCES] ".." ".." !* Enter list of sources (maximum 30)
LET N_SCANS_SOURCE[1:N_SOURCES] .. .. !* Enter time per source (in scans)
ENDIF
!
LET CALIBRATOR_1 "......." !**! 1st phase calibrator
LET CALIBRATOR_2 "......." !**! 2nd phase calibrator
LET CALIBRATOR_3 "......." !* ! 3rd phase calibrator (if necessary)
LET N_CALIBRATORS 2 !* ! Use 2 phase calibrators every N_SCANS
LET N_SUBS_CAL 45 !* ! Scan length on calibrator (in seconds)
LET N_SCANS_CAL 3 !* ! Nb scans on each calibrator (3 scans)
LET FSWI_CAL .FALSE. !* ! No fast-switching by default
LET N_MOSAIC 0 !* ! No mosaic mode
IF (N_MOSAIC.NE.0) THEN
DEFINE REAL X_MOSAIC[N_MOSAIC] Y_MOSAIC[N_MOSAIC] T_MOSAIC[N_MOSAIC] /GLOBAL
LET X_MOSAIC .. .. !* ! offsets in arcsec
LET Y_MOSAIC .. .. !* ! offsets in arcsec
LET T_MOSAIC .. .. !* ! in units of N_SUBSCANS
ENDIF
!
LET SOLVE_POINT YES
LET SOLVE_FOCUS YES
!
LET FOCUS_RECEIVER 'RECEIVER' !* ! Focusing on observing receiver
LET POINT_RECEIVER 'RECEIVER' !* ! Pointing on observing receiver
!
LET SOLVE_POLAR "B" !* ! Solve point on Polar: B=both, V, or H
!
IF (RECEIVER.EQ.4) THEN
LET T_POINT 0.33
ENDIF
!
LET POINT_SOURCE_1 "......." !**! 1st pointing source
LET POINT_SOURCE_2 "......." !* ! 2nd pointing source
LET FOCUS_SOURCE_1 "......." !**! 1st focusing source
LET FOCUS_SOURCE_2 "......." !* ! 2nd focusing source
!
SET\UNLOCK
!
@ PR:spec-defaults ! define standard correlator setup
!
NARROW Q3 Q3 /REC 'RECEIVER' !**! Define quarters to be connected to
! the two correlator inputs of the NARROW BAND CORRELATOR
! @ the chosen receiver band
!
SPECTRAL 1 20 600 /NARROW 1 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 2 320 300 /NARROW 1 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 3 320 600 /NARROW 1 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 4 320 900 /NARROW 1 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 5 20 600 /NARROW 2 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 6 320 300 /NARROW 2 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 7 320 600 /NARROW 2 /REC 'RECEIVER' !**! Define correlator configuration
SPECTRAL 8 320 900 /NARROW 2 /REC 'RECEIVER' !**! Define correlator configuration
!
LINE xxxx yyyy LSB 6500 /REC 'RECEIVER' !**! Define observing frequency
!
IF (N_SOURCES.GT.1) THEN
SOURCE 'NAME_SOURCE[1]' /TYPE OBJ
ELSE
SOURCE 'NAME' /TYPE OBJ
ENDIF
!
SET\RECE 'RECEIVER' /POLAR 'SOLVE_POLAR' ! Choose receiver band for the observation
!
SET\OBS
!
LOAD /FREQUENCY ! Load frequency, but don't move antenna now
!
! Make sure any changes in the spectral configuration will be detected:
SET\LOCK
!
LET CHANGE_SPECTRAL .FALSE. !* ! .TRUE. if need to switch to broad_band
!
IF (CHANGE_SPECTRAL) THEN
SPECTRAL /BROAD
ENDIF
!
SET SHOW OFF
!
TYPE PR:clean.obs
SAY "Project zzzz Type: Detection / Category: 3mm, dual polarization" !**!
SAY " "
SAY " Tuning Receiver "'RECEIVER'": LSB " !**!
SAY " "
!
! Insert here any other instructions to the operator/astronomer
!
SAY "Frequency sent, receivers may be tuned"
SAY "Execute all observations by typing GO"
SAY " "
SAY "Type END when project is finished"
SAY " "
SYMBOL PROCEED /INQUIRE "Type RETURN to remove this page: "
SET SHOW ON
All information appearing on lines marked !**! must have been supplied in the observing proposal, lines marked !* ! will use default values if not specified. The remaining part of the procedure will be defined by IRAM personal (your local contact, usually). The project number (zzzz in this example) is assigned by IRAM when observing proposals are received.
After final checking by IRAM staff, this file will be given to the operators, together with a copy of the proposal and any accompanying information the observer may find useful. This small ``dossier'' will be updated by the operator and on-duty astronomer during observations, and a copy of it will be given to the observer when he visits Grenoble for data reduction after the project is completed. In particular, the on-duty astronomer will fill in a NOTE file that summarizes the individual conditions and particular problems encountered during each track observed. The NOTE file will provide some suggestions in cases where the data calibration is not straight-forward.