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Wobbler Thorw

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

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

-  ⇤ ← Revision 3 as of 2007-08-19 11:36:30 → 
  Size: 324
  Editor: lt-sl
  Comment:
+   ← Revision 12 as of 2007-09-14 08:23:00 → ⇥
  Size: 1347
  Editor: lt-sl
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 18:
+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
}}}