; Load the data.
filein,"data/TGBT22A_603_08.raw.vegas"
; Show a summary of its contents.
summary
; The summary reveals that there are two sources
; observed under scan 5; DR21 and 3C353.
; To retrieve the data for these scans we should provide
; the `timestamp` or `instance` option when retrieving 
; the data.
; To figure out the time stamps we can use the `list`
; function.
list,columns="timestamp,scan,source"
; From this we get that DR21 was observed at 2022_08_05_01:47:33
; and 3C353 at 2022_08_05_02:50:00.
; We can use this to get their data.
gettp,5,timestamp='2022_08_05_01:47:33' ; DR21
gettp,5,timestamp='2022_08_05_02:50:00' ; 3C353
; or the equivalent:
gettp,5,instance=0
gettp,5,instance=1