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The header will contain a table if data indicating the offsets of each beam relative to the selected beam.
The format of the table is listed below.
- NAME
- This is an string name for the named beam. The convention used is that
beam names which correspond to physical feeds are numeric, and 'virtual' beams begin
with a letter. The letter 'C' is usually used to indicate the center of the receiver
package.
- BEAMXELOFFSET
- Specifies the beam offset in cross-elevation relative to the tracking beam. Units are degrees.
- BEAMELOFFSET
- Specifies the beam offset in elevation relative to the tracking beam. Units are degrees.
- SRFEED1, SRFEED2
- When performing beam switching, the SRFEED1/SRFEED2 specify the sig and reference
beam pair. Note: The accurracy of this statement is in question. It is unclear at this point how
the data processing scripts use this information or whether it is in use at all.
Name |
Type |
Units |
NAME |
32A |
None |
BEAMXELOFFSET |
1D |
Degrees |
BEAMELOFFSET |
1D |
Degrees |
SRFEED1 |
32A |
none |
SRFEED2 |
32A |
none |
[h]
Next: Primary Binary Table Column
Up: gbtAntFits
Previous: Primary Header Keyword Definitions
Joe Brandt
2014-01-07