Background and procedure for science division:

The science division is trying to update the Tcal values in the
operations database which is used by the measurements manager to build
the receiver-based FITS file to pass the Tcal values to the sdfits
files by sdfits which are used by GBTIDL by the users to calibrate
their data.  We have a very convoluted procedure to pass a scalar
value through our system.  Anyway, the first step is to populate the
operations database with the tcal values.


Procedure for going from ascii to operations database:

%bash

%source /home/gbt/gbt.bash

%updateRcvrTcals Rcvr12_18.txt

The name of the file matters and should match the Rx name in the software M&C system.

The format needs to be like this:


Receiver:       Rcvr12_18
Engineer:       D. Frayer
Technician:     D. Frayer
Measurement Date:  April 30, 2018
Measurement Bandwidth:  1.0 GHz

Channel: R1
Beam: 1
Polarization: R circular
Notes:  Junk data to test software


Fsky(Ghz)   Trx      Low Cal   High Cal
12.0        1.0      2.0       0.0
13.0        1.0      2.0       0.0
14.0        1.0      2.0       0.0
15.0        1.0      2.0       0.0
16.0        1.0      2.0       0.0
17.0        1.0      2.0       0.0
18.0        1.0      2.0       0.0

with additional tables for each channel.  I would recommend matching
the channel names with those given in the current data base.  I do not
know how much of the header information is required.

It takes several seconds to process the data.

If an errors occur, the problem line will be identified, otherwise a
graph will be shown, indicating success.  Under file, select save to
load the data in the database: Password is "blackbody"

Saving writes the data into the M&C system.  The software uses data
based on the most recent date.

To view Tcal data from the database

%bash

%source /home/gbt/gbt.bash


%rcvrCalibView

It takes several seconds to process the data.