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operations:documentation.test_antenna
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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operations:documentation.test_antenna [2013/11/26 02:59] Jim Lovell |
operations:documentation.test_antenna [2016/07/04 16:05] (current) Jesse Swan |
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| ===== Antenna Controller Clock ===== | ===== Antenna Controller Clock ===== | ||
| - | The antenna Controller (in the pedestal) gets its time from the NTP server on the local GPS CNS-II clock. If it doesn't know the time, it can't point the antenna. Check the System Monitor display and make sure "Controller clock" is OK. If not, there's a problem. Check the HMI interface on time[hb|ke|yg] and look for the "Current time" section half-way down the right-hand side. MJD should be correct and the seconds should be ticking over. You should also see CLOVK INITIALIZED and SNTP SERVER OK with green backgrounds. If this doesn't look right, consult the On Call person. | + | The antenna Controller (in the pedestal) gets its time from the NTP server on the local GPS CNS-II clock. If it doesn't know the time, it can't point the antenna. Check the System Monitor display and make sure "Controller clock" is OK. If not, there's a problem. Check the HMI interface on time[hb|ke|yg] and look for the "Current time" section half-way down the right-hand side. MJD should be correct and the seconds should be ticking over. You should also see CLOCK INITIALIZED and SNTP SERVER OK with green backgrounds. If this doesn't look right, consult the On Call person. |
| ===== Antenna in Remote ===== | ===== Antenna in Remote ===== | ||
| - | Check the System Monitor that the Drive control is in "Remote". If it isn't you won't be able to move the antenna. Cann the local support person at the site for assistance. | + | Check the System Monitor that the Drive control is in "Remote". If it isn't you won't be able to move the antenna. Call the local support person at the site for assistance. |
| ===== Antenna pointing check ===== | ===== Antenna pointing check ===== | ||
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| Where ''Az'' and ''El'' are the antenna Azimuth and Elevation that the fit was done, ''Lon_offset'' is the cross-El pointing offset in deg and ''Lat_offs'' is the Elevation pointing offset in deg. | Where ''Az'' and ''El'' are the antenna Azimuth and Elevation that the fit was done, ''Lon_offset'' is the cross-El pointing offset in deg and ''Lat_offs'' is the Elevation pointing offset in deg. | ||
| - | Total pointing offsets should generally be less than ~0.02 degrees. Offsets greater than 0.04 are considered to be critical and require immediate investigation. Pointing offsets less than this should be dealt with as soon as possible after the observation. | + | Total pointing offsets should generally be less than ~0.02 degrees. Offsets greater than 0.04 are considered to be critical and require immediate investigation. Pointing offsets less than this should be dealt with as soon as possible after the observation. //To fix offsets between ~0.02 and 0.04 run the fivept command again after setting the AZ and EL offsets to zero (see a few steps below).// |
| A SEFD check can be made using the new pointing offsets with a <code>onoff</code> | A SEFD check can be made using the new pointing offsets with a <code>onoff</code> | ||
/home/www/auscope/opswiki/data/attic/operations/documentation.test_antenna.1385434778.txt.gz · Last modified: 2013/11/26 02:59 by Jim Lovell
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