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'''Wobbler Thorw'''
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<<TableOfContents>>

Back to MamboWebPage

=== Observations ===
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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
}}}

Wobbler Thorw

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

Contents

  1. Observations
  2. Results

Back to MamboWebPage

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

Results

04.09.2007
Bolometer Tests
The wobbler throw fit is taken from the pointing reduction with mopsic

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

testMambo-20070904 (last edited 2009-04-16 08:26:33 by localhost)