'''Wobbler Thorw'''

Double-beam pointing with heterodyne and bolometer to check the effective throw vs. the commanded one.

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=== Observations ===
'''NOTE for pako/Hetrodyne'''
{{{
Use pakodev

pako> set priv staff
pako> swwobbler -XX XX
pako> pointing /double
}}}

To get the wobbler throw with '''MIRA'''
{{{
MIRA> let dopause yes
}}}

The wobbler throw fitted depends of the Wobbler phase and the velocity speed. The wobbler throw commanded is corrected of that dependence.


'''Tests''': <<BR>>
Wobbler Throws (arcsec): 30, 40, 50, 60, 70, 80, 90, 120 (Het.) <<BR>>
Integ. Time (s)/Length (arcsec): 30/60, 30/90, 30/120, 30/150, 20/120, 20/140, 20/160 <<BR>>

=== Results ===
'''04.09.2007'''  <<BR>>
Bolometer Tests  <<BR>>
The wobbler throw fit is taken from the pointing reduction with mopsic <<BR>>


tphase=0.26 [default]
{{{
Scan  CommandedWobbler/IntegrationTime/Length    ActualWobbler
      (arcsec/sec/arcsec)    (arcsec)
}}}
{{{
182  50/30/60   47.7
183  60/30/60   56.0
184  70/45/90   69.4
185  80/45/90   78.1
186  90/45/90   86.9   
187  120/60/120 119.5 [tphase=0.4]
}}}

{{{
188  30/30/90   28.
189  40/30/90   39.7
190  50/30/90   48.5
191  60/30/90   57.7
192  70/30/90   67.9
193  80/30/90   79.4
194  90/30/90   89.4
}}}

{{{
195  30/30/120  27.7
196  40/30/120  38.8
197  50/30/120  49.8
198  60/30/120  58.7
199  70/30/120  65.8
200  80/30/120  79.1
201  90/30/120  90.4
}}}

{{{
202  30/30/150  27.7
203  40/30/150  38.6
204  50/30/150  46.6
205  60/30/150  58.6
206  70/30/150  68.3
207  80/30/150  77.9
208  90/30/150  87.1 
}}}

{{{
209  30/20/120  29.0
210  40/20/120  39.1
211  50/20/120  49.7
212  60/20/120  58.1
213  70/20/120  69.2
214  80/20/120  77.9
215  90/20/120  86.4
}}}

{{{
217  30/20/140  27.0
218  40/20/140  39.9
219  50/20/140  48.5
220  60/20/140  57.9
221  70/20/140  67.4
222  80/20/140  79.2
223  90/20/140  90.0  
}}}

{{{
224  30/20/160  28.2
225  40/20/160  37.6
226  50/20/160  47.5
227  60/20/160  59.8
228  70/20/160  71.0
229  80/20/160  79.8
230  90/20/160  87.9
}}}

{{{
231  30/30/60  28.6
232  40/30/60  38.6
233  50/30/60  48.0
234  60/30/60  58.9
235  70/30/60  66.8
236  80/30/60  77.9
237  90/30/60  88.1 
}}}

We checked the effects of the '''Time Phase''' by performing various pointing on Uranus using one setup (Wobbler=50/Integ=30/Length=60) and different time phase. The results are the following:

{{{
tPhase=0.26 [Default]
Scan=242...250
ActualWobbler=[47.6,47.6,48.6,48.5,47.6,48.1,48.4,46.5]
Mean=47.8625 arcsec  Dispersion=0.692
}}}

{{{
tPhase=0.4 
Scan=251...260
ActualWobbler=[49.7,49.,49.,49.3,47.3,48.5,49.1,48.1,48.4,48.4]
Mean=48.6800 arcsec  Dispersion=0.686
}}}

{{{
tPhase=0.6 
Scan=262...270
ActualWobbler=[49.5,48.4,49.3,49.1,50.3,48.0,48.5,50.0,48.7]
Mean=49.0889 arcsec  Dispersion=0.764l
}}}

{{{
tPhase=0.9 
Scan=271...277
ActualWobbler=[49.8,49.6,49.6,49.5,50.0,49.3,49.0]
Mean=49.5429 Dispersion=0.325868
}}}