Size: 2876
Comment:
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Size: 2930
Comment:
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Deletions are marked like this. | Additions are marked like this. |
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* Accessible range : -23000 to +23000 | * Accessible range : -23500 to +23000 |
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|| FPU Angle || Sky Angle || Chopper pos || Comment || || - 8.5 deg || -6.32 arcmin || -23382 || center CS1 || || -4 deg || -2.97 arcmin || -12101 || || || 0 deg || 0 arcmin || 0 || Mechanical zero || || +4 deg || 2.97 arcmin || 12431 || || || + 8.5 deg || 6.32 arcmin || 22347 || center CS2 || |
|| FPU Angle || Sky Angle || Chopper pos || Comment || || - 8.5 deg || -6.32 arcmin || -21350 || center CS1 (determined from PHOTO FoV map) || || -4 deg || -2.97 arcmin || -12101 || || || 0 deg || 0 arcmin || 664 || Optical zero - value from Zeiss measurements || || +4 deg || 2.97 arcmin || 12431 || || || + 8.5 deg || 6.32 arcmin || +21200 || center CS2 (determined from PHOTO FoV map) || |
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#to chopper readouts: print (664??? +) fpuAngle2ChopPosPol(Double1d([-4, 0, 4])) |
# to chopper readouts (assuming optical zero of 664 based on Zeiss measurements): print 664 + fpuAngle2ChopPosPol(Double1d([-4, 0, 4])) |
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#664???: optical zero, not known yet, must first #be defined and measured! #664 is the best guess for the optical zero #using Zeiss measurements. #you get angles referred to the mechanical zero #by using chopPos2FpuAnglePol |
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* Center spectro field : * x = -12.8 mm * y = +1.2 mm |
* Center spectro field : || || X stage (mm) || Y stage (mm) || || RED || -12.7628 || 0.938300 || || BLUE || -12.6774 || 1.15180 || |
FM ILT reference numbers
Ge:Ga detector settings
- Blue
par
value
comment
Bias d
198 mV
From bias / heater loop test
Bias r
10 mV
Component level value - to be verified on CRE checkout test
Heater
1.5 mA
Result from bias / heater loop test (2.68K/1.84mA) exceeds thermal budget
- Red
par
value
comment
Bias d
69 mV
From bias / heater loop test
Bias r
10 mV
Component level value - to be verified on CRE checkout test
Grating
- Configuration table: CONFGrat. Column : FMILTFast / FMILT_R_Fast for redundant
- Allowed working range :
- 45K - 1045K (nominal)
- 65K - 1065K (redundant)
- Conversion wavelength - grating position:
Chopper
- !!! Do NOT use the chopper in redundant mode !!!
- Configuration table CONFChopper / column : CSLopt3-600
- Accessible range : -23500 to +23000
- At +/- 25000 a field plate limit disables the controller
- Conversion chopper position - angle on the sky - FPU angle :
FPU Angle
Sky Angle
Chopper pos
Comment
- 8.5 deg
-6.32 arcmin
-21350
center CS1 (determined from PHOTO FoV map)
-4 deg
-2.97 arcmin
-12101
0 deg
0 arcmin
664
Optical zero - value from Zeiss measurements
+4 deg
2.97 arcmin
12431
+ 8.5 deg
6.32 arcmin
+21200
center CS2 (determined from PHOTO FoV map)
Other angles - in the PCSS (release >20070303A) :
from all import * # conversion FPU angles in degrees # to chopper readouts (assuming optical zero of 664 based on Zeiss measurements): print 664 + fpuAngle2ChopPosPol(Double1d([-4, 0, 4])) # conversion chopper readouts to sky angle # in arcmin : scaling factor 80.69 print chopPos2FpuAnglePol(Double1d([-12101, 0, 12431])))*60./80.69
Filter Wheel PHOT
- POS A = Long wavelength (Green)
- POS B = Short wavelength (Blue)
Filter Wheel SPEC
- POS A = Short wavelength (50-70um)
- POS B = Long wavelength (70-100um)
Calibration sources
- CS1
- 48 Ohm = 55K
- Chopper position center : - TBD
- CS2
- 58 Ohm = 60K
- Chopper position center : + TBD
XY stage
- Scale: 1" on the sky = 0.18mm
- Spectrometer
- Focus : +5mm (from FMILT-1, not incompatible with spectro FMILT-2)
- Center spectro field :
X stage (mm)
Y stage (mm)
RED
-12.7628
0.938300
BLUE
-12.6774
1.15180
- Photometer
- Focus : +5mm (from FMILT-1)
- Center field :
- x = 4 mm
- y = 0