TSYS TSYS will extract system temperatures for VLBI experiments from OVRO log files, HP (SNAP, Mark-III) log files, VLA monitor data files, an Jodrell Bank log files, and write these system temperatures to a file which can be read by program CAL. The input files must be ASCII text. Multiple input files can be handled in succession during one TSYS execution. One output file is created for each input file. For each output file, the first line contains a user-specified comment, the second line identifies the station, and the last line is ' /'. Prior action: OVRO: Obtain the OVRO log file from OVRO. This can be done using the DECnet link to OVRO. The log files have names like LOG_OUTPUT::840306.LOG. There is one log file for each UT day (the example is the log for 6-Mar-1984). Use COPY/CONCAT or APPEND to join the log files for your experiment into one file for input to TSYS. HP: Request that the station involved transfer your HP log file to tape and send it to you, along with a description of how the tape was written. Use a VAX tape utility to transfer the tape contents to disk for input to TSYS. VLA: Obtain the system temperature monitor data file generated by P. Crane. Do this by using DECnet to set host to node NRAO, logging on to NUG (no password), and COPYing the appropriate file (e.g., UMA3:[VLB]VP58.MON). Otherwise, request that your file be sent to you on tape, along with a description of how the tape was written, and use a VAX tape utility to transfer the file to disk for input to TSYS. JODRELL: Usually the log file will be sent to you on tape or by electronic mail. Requested parameters: Type of input file: choose one of the following: O - OVRO log file H - HP log file V - VLA monitor file J - JODRELL log file E - exit Comment with ! - 1 per output file e.g., ! Do I believe Tcal? For OVRO files - Input file e.g., 840306.LOG Output file e.g., P58OVRO.TSY Tcal value [K] e.g., 15.0 For HP files - Input file e.g., O6.LOG TSYS Page 2 Output file e.g., P58GRAS.TSY Position of tsys value in list e.g., 2 Station name e.g., GRAS For VLA files - Input file e.g., VP58.MON Output file e.g., P58VLA.TSY Initial day number e.g., 346 R or L cp? e.g., L For Jodrell files - Input file e.g., JODRELL.LOG Output file e.g., P58JODR.TSY Factor FT (multiplies Ts values) e.g., 1.0 Use: To run the program, type the command TSYS and answer the questions. A command file can be set up to run the program and save typing. Later action: Create a file (e.g., P58CAL.PAR) which contains all calibration parameters needed by VLB:CAL, except for the system temperatures which can be extracted using TSYS. Use an intelligent editor to put the file(s) output by TSYS into, e.g., P58CAL.PAR. History Version 0.0: 1984 Jun 7 - New program (J.M. Wrobel). Based upon TSYSOVRO by T.J. Pearson, TSYSMK3D by S.C. Unwin and G.L. Dvorak, and TSYSVLA by J.M. Wrobel. Version 1.0: 1984 Jun 20 - Bypasses odd HP TSYS values, warns user (JMW). Version 1.1: 1984 Nov 8 - Avoid TSYS truncation for > 100 K (JMW). Version 1.2: 1985 Jan 28 - Bypass odd VLA TSYS values, warn user (JMW). Version 1.3: 1985 Jun 6 - Better test to increment VLA DAYNUM (JMW). Version 1.4: 1987 Dec 11 - Add programs for Jodrell Bank logs (AKT).