Before visualizing, the user needs to know what kind of data is available. The LIST command is commonly used to easily see the content of the current index. However, this command outputs one line per observation in CLASS90 which is useless when dealing with thousands of observations. The LIST /SCAN command reintroduces the CLASS77 way of listing an index, i.e. one line per scan and setup (i.e. unique combination of source, line and telescope names). LIST /SCAN /BRIEF lists the scan with the number of associated observations. These three possibilities respectively give
LAS90> list
I-LISTE, Current index:
197; 3 B0355+508 12CO(1-0) 30M-V01-A100 -109.1 -100.0 Eq 9608; 1
198; 3 B0355+508 12CO(1-0) 30M-V01-A100 -106.1 -100.0 Eq 9608; 1
199; 3 B0355+508 12CO(1-0) 30M-V01-A100 -103.0 -100.0 Eq 9608; 1
200; 3 B0355+508 12CO(1-0) 30M-V01-A100 -100.5 -100.0 Eq 9608; 1
201; 3 B0355+508 12CO(1-0) 30M-V01-A100 -97.5 -100.0 Eq 9608; 1
...
270; 3 B0355+508 12CO(1-0) 30M-V02-B100 -109.1 -100.0 Eq 9608; 1
271; 3 B0355+508 12CO(1-0) 30M-V02-B100 -106.1 -100.0 Eq 9608; 1
272; 3 B0355+508 12CO(1-0) 30M-V02-B100 -103.0 -100.0 Eq 9608; 1
273; 3 B0355+508 12CO(1-0) 30M-V02-B100 -100.5 -100.0 Eq 9608; 1
274; 3 B0355+508 12CO(1-0) 30M-V02-B100 -97.5 -100.0 Eq 9608; 1
...
343; 3 B0355+508 12CO(2-1) 30M-V03-A230 -109.1 -100.0 Eq 9608; 1
344; 3 B0355+508 12CO(2-1) 30M-V03-A230 -106.1 -100.0 Eq 9608; 1
345; 3 B0355+508 12CO(2-1) 30M-V03-A230 -103.0 -100.0 Eq 9608; 1
346; 3 B0355+508 12CO(2-1) 30M-V03-A230 -100.5 -100.0 Eq 9608; 1
347; 3 B0355+508 12CO(2-1) 30M-V03-A230 -97.5 -100.0 Eq 9608; 1
...
416; 3 B0355+508 12CO(2-1) 30M-V04-B230 -109.1 -100.0 Eq 9608; 1
417; 3 B0355+508 12CO(2-1) 30M-V04-B230 -106.1 -100.0 Eq 9608; 1
418; 3 B0355+508 12CO(2-1) 30M-V04-B230 -103.0 -100.0 Eq 9608; 1
419; 3 B0355+508 12CO(2-1) 30M-V04-B230 -100.5 -100.0 Eq 9608; 1
420; 3 B0355+508 12CO(2-1) 30M-V04-B230 -97.5 -100.0 Eq 9608; 1
...
661; 3 B0355+508 12CO(1-0) 30M-V01-A100 -109.8 -90.0 Eq 9609; 1
662; 3 B0355+508 12CO(1-0) 30M-V01-A100 -106.7 -90.0 Eq 9609; 1
663; 3 B0355+508 12CO(1-0) 30M-V01-A100 -103.6 -90.0 Eq 9609; 1
664; 3 B0355+508 12CO(1-0) 30M-V01-A100 -101.2 -90.0 Eq 9609; 1
665; 3 B0355+508 12CO(1-0) 30M-V01-A100 -98.1 -90.0 Eq 9609; 1
...
734; 3 B0355+508 12CO(1-0) 30M-V02-B100 -109.8 -90.0 Eq 9609; 1
735; 3 B0355+508 12CO(1-0) 30M-V02-B100 -106.7 -90.0 Eq 9609; 1
736; 3 B0355+508 12CO(1-0) 30M-V02-B100 -103.6 -90.0 Eq 9609; 1
737; 3 B0355+508 12CO(1-0) 30M-V02-B100 -101.2 -90.0 Eq 9609; 1
738; 3 B0355+508 12CO(1-0) 30M-V02-B100 -98.1 -90.0 Eq 9609; 1
...
807; 3 B0355+508 12CO(2-1) 30M-V03-A230 -109.8 -90.0 Eq 9609; 1
808; 3 B0355+508 12CO(2-1) 30M-V03-A230 -106.7 -90.0 Eq 9609; 1
809; 3 B0355+508 12CO(2-1) 30M-V03-A230 -103.6 -90.0 Eq 9609; 1
810; 3 B0355+508 12CO(2-1) 30M-V03-A230 -101.2 -90.0 Eq 9609; 1
811; 3 B0355+508 12CO(2-1) 30M-V03-A230 -98.1 -90.0 Eq 9609; 1
...
880; 3 B0355+508 12CO(2-1) 30M-V04-B230 -109.8 -90.0 Eq 9609; 1
881; 3 B0355+508 12CO(2-1) 30M-V04-B230 -106.7 -90.0 Eq 9609; 1
882; 3 B0355+508 12CO(2-1) 30M-V04-B230 -103.6 -90.0 Eq 9609; 1
883; 3 B0355+508 12CO(2-1) 30M-V04-B230 -101.2 -90.0 Eq 9609; 1
884; 3 B0355+508 12CO(2-1) 30M-V04-B230 -98.1 -90.0 Eq 9609; 1
LAS90> list /scan
I-LISTE, Current index:
B0355+508 12CO(1-0) 30M-V01-A100 -109.1:+108.2 -100.0 Eq 9608; 73
B0355+508 12CO(1-0) 30M-V02-B100 -109.1:+108.2 -100.0 Eq 9608; 55
B0355+508 12CO(2-1) 30M-V03-A230 -109.1:+108.2 -100.0 Eq 9608; 73
B0355+508 12CO(2-1) 30M-V04-B230 -109.1:+108.2 -100.0 Eq 9608; 73
B0355+508 12CO(1-0) 30M-V01-A100 -109.8:+107.5 -90.0 Eq 9609; 73
B0355+508 12CO(1-0) 30M-V02-B100 -109.8:+107.5 -90.0 Eq 9609; 73
B0355+508 12CO(2-1) 30M-V03-A230 -109.8:+107.5 -90.0 Eq 9609; 73
B0355+508 12CO(2-1) 30M-V04-B230 -109.8:+107.5 -90.0 Eq 9609; 73
LAS90> list /scan /brief
I-LISTE, Current index:
9608; 274 9609; 292
It is also useful to get all the available setups of a file at a glance.
This is available through the ``list in /toc'' command
LAS90> file in 12co21-newfmt.30m
LAS90> list in /toc
I-LIST, Input index:
Number of sources...... 1
B0355+508 17210
Number of Lines........ 2
12CO(1-0) 8596
12CO(2-1) 8614
Number of backends..... 4
30M-V01-A100 4307
30M-V02-B100 4289
30M-V03-A230 4307
30M-V04-B230 4307
Number of setups....... 4
B0355+508 12CO(1-0) 30M-V01-A100 4307
B0355+508 12CO(1-0) 30M-V02-B100 4289
B0355+508 12CO(2-1) 30M-V03-A230 4307
B0355+508 12CO(2-1) 30M-V04-B230 4307