For a beam switching observation the new PGA pages look like the
following examples. Please note that it is now split into three
concatenated AOTs. There is one AOT for the OFF source (CAM01), ON
source (CAM03) and back to the OFF source position (CAM01). Some
observers also choose to reverse the ON and OFF positions within the
CAM03 observation. This approach works without any increase in the
observing time, provided the OFF position was far enough from the ON
to avoid having the target in the field of view using the 6" pfov.
However, please note that for versions of the pipeline prior to
version (5.0) the CMOS map will have the coordinates entered as
"target" in PGA (the off source pointing) and will have the fluxes
multiplied by -1.
The CAM01 on offset position PGA entry look like:
GENERAL OBSERVATION
-------------------
Number of measurements: 1
Procedures
Extra-SW ADC-gain +-----+-----+ N.stab.
| | | | | |
Beam PFOV Filter Lambd | T.int | Opertns. Cal. Drk. Cln. | N.exps.
--------------------------------------------------------------------------------
SW-l 3 SW6 0 N 2.1 2 ObDk 19 1 4
--------------------------------------------------------------------------------
This AOT is concatenated to the CAM03 on target position.
BEAM SWITCHING
--------------
Number of reference fields: 1 Epoch: 1950
Right Asc. Declination l(II) b(II)
---------------------------------------------------------
17h 19m 42.3s 26d 41' 16.1" 49.25459 d 30.97340 d
17h 19m 35.0s 26d 43' 00.0" 49.27748 d 31.00784 d
---------------------------------------------------------
Number of measurements: 2
Procedures
ADC-gain +-----+-----+ N.stab. N.cyc.
| | | | | |
Beam PFOV Filter Lambd T.int | Opertns. Cal. Drk. Cln. | N.exps. |
--------------------------------------------------------------------------------
SW-l 3 SW6 0.000 6 2 Ob 50 20 2
LW-s 3 LW4 0.000 2 2 ObDk 29 50 18 2
--------------------------------------------------------------------------------
This AOT is concatenated to the CAM01 on offset position.
GENERAL OBSERVATION
-------------------
Number of measurements: 1
Procedures
Extra-SW ADC-gain +-----+-----+ N.stab.
| | | | | |
Beam PFOV Filter Lambd | T.int | Opertns. Cal. Drk. Cln. | N.exps.
--------------------------------------------------------------------------------
LW-l 3 LW4 0 N 2.1 2 ObDk 20 1 4
--------------------------------------------------------------------------------