Opened 15 years ago
Closed 15 years ago
#174 closed defect (fixed)
Linefinder fails to find any lines in a Mopra dataset
| Reported by: | Max Voronkov | Owned by: | Max Voronkov |
|---|---|---|---|
| Priority: | normal | Milestone: | ASAP 2.4 |
| Component: | General | Version: | 2.0 |
| Severity: | normal | Keywords: | |
| Cc: |
Description
I tried linefinder with the Mopra dataset (G327 - tutorial 2 from the Parkes school), IF=2. It failed to find any lines. A few couts show that at the C++ level the code receives 'nan' in every spectral channel. I suspect it may have something to do with the flagging of the edge channels (which is required to remove rubbish near the edge of every IF in the MOPS broadband mode). This particular dataset doesn't work with older ASAP revisions (installed on kaputar and eulah-cj) either.
Change History (2)
comment:1 by , 15 years ago
| Owner: | changed from to |
|---|
comment:2 by , 15 years ago
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Note:
See TracTickets
for help on using tickets.
It was found that the flagging information stored in the scantable was indeed not taken into account. Therefore, unless the mask is passed to the line finder directly the flagged channels are treated as the channels with signal allowing nans to confuse statistics and therefore preventing any detections. This bug has been fixed in r1641.