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Commissioning and Science Verification

Subref position offsets for single-beam receivers > Measurement†

Revision history

• 2016-08-01 - created by Kamazaki,T.

Table of contents

• Subref position offsets for single-beam receivers > Measurement
  • Measurement

Measurement†

1. Start COSMOS3 and tune the receiver to be used
   • Check Aspirin is in the WIND ON mode
2. Login to COSMOS3 manager GUI with Group=asteXX (e.g. aste16) and Project=sbrfXX (e.g. sbrf16)
3. Run CONT qlook (qlookc) from cos3launcher and turn on auto-pointing on the qlook
4. Adjust pointing using either of the following observation tables
    

   Saturn	DASH345	stx5d3.start
   	BAND8	stx5b8.start

    
5. Measure z-position by running either of the following observation tables and then, add its resultant offset to dz (if |dz| > 0.1 mm)
    

   Saturn	DASH345	stsbd3z.start
   	BAND8	stsbb8z.start

    
6. Run either of the following observation lists in the batch mode of the COSMOS3 manager GUI
    

   Saturn	DASH345	stsbd3.list
   	BAND8	stsbb8.list

    
   • A loop consists of 12 observation tables after initial pointing

     Step 0. initial pointing
     Step 1. repeat [z->a->b->c->d->e->a->f->g->h->i->a]
     
     z|
     -+
         e       A
         d       |X (dx=1.0 mm)
     g f a h i  <-Y (dy=1.0 mm)
         b
         c

   • Since data are reduced by a unit of the loop, stop running observations after the last observation table "a" if necessary