In the case that the data observed in an observing run was stored into several files for some reasons, then these files are loaded into Miriad seperately by running smalod. The Miriad task uvcat is able to catenate the multiple Miriad files. The current version of smalod reads a MIR file. We will support loading multiple SMA data files using smalod in the near future. Here is an example to read serveral subsets of MIR files and catenate them:
smalod in=/data/SMAdata/040722_03:47:04/ out=040722a rxif=0 refant=6 sideband=1 smalod in=/data/SMAdata/040722_06:34:05/ out=040722b rxif=0 refant=6 sideband=1 uvcat vis=040722a,040722b out=040722The output file 040722 is the catenated uvdata set with the visibility data sorted in an order of ascending time.