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The tracking control system of the VLT Survey Telescope
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10.1063/1.4754128
/content/aip/journal/rsi/83/9/10.1063/1.4754128
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/9/10.1063/1.4754128

Figures

Image of FIG. 1.
FIG. 1.

The VST telescope at Paranal observatory.

Image of FIG. 2.
FIG. 2.

Control system diagram.

Image of FIG. 3.
FIG. 3.

Application of a torque bias.

Image of FIG. 4.
FIG. 4.

The telescope seen from the instrument side.

Image of FIG. 5.
FIG. 5.

Bode diagram of altitude axis speed controller zero-pole filter.

Image of FIG. 6.
FIG. 6.

Variable integral gain. The coordinates of the points are: (0, 2 × 10−3), (2, 2 × 10−3), (4, 1.5 × 10−3), (52, 2 × 10−5), (72,0).

Image of FIG. 7.
FIG. 7.

Wind speed during tests.

Image of FIG. 8.
FIG. 8.

Altitude tracking map results.

Image of FIG. 9.
FIG. 9.

Azimuth tracking map results.

Image of FIG. 10.
FIG. 10.

Rotator tracking map results.

Image of FIG. 11.
FIG. 11.

Tracking map results (az, alt, rot). The x-axis shows the numbering of the tests.

Image of FIG. 12.
FIG. 12.

Altitude tracking error vs time.

Image of FIG. 13.
FIG. 13.

Azimuth tracking error vs time.

Image of FIG. 14.
FIG. 14.

Rotator tracking error vs time.

Image of FIG. 15.
FIG. 15.

Effect of combined error. The x-axis shows the numbering of the tests.

Image of FIG. 16.
FIG. 16.

Results of a pointing modeling session.

Image of FIG. 17.
FIG. 17.

Probe arm.

Image of FIG. 18.
FIG. 18.

Effect of the autoguider corrections.

Tables

Generic image for table
Table I.

Pointing model main terms.

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/content/aip/journal/rsi/83/9/10.1063/1.4754128
2012-09-27
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The tracking control system of the VLT Survey Telescope
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/9/10.1063/1.4754128
10.1063/1.4754128
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