Quickdata Quikstop-15 Specifikace stáhnout pdf (Strana 33)

Page 28 of 54

Wavelength

Subreflector focus

position

3mm

16.2

7mm

16.2

12mm

16.2

2.5cm

10.0

3cm

-2.0

20cm

-25

Table 12 Focus positions

Select the slider in the focus tab, and click the GO button:

Figure 16 Focusing screen

5.8.3. Pointing

The telescope needs pointings done about once every 1.5 hours during

observing in the same area of the sky, or whenever you move more than 30

degrees away from the last pointing source, and once before you start your

observations.

In the unlikely event that you cannot see a maser at all, you might want to reset

the pointing model to the global pointing model by executing the command

newcain pparam in the same blue bigrock terminal where you start the

sio_point command from and then restart the pointing schedule.

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Quickdata Quikstop-15 Specifikace Strana 33