GNU Astronomy Utilities - Tasks: task #16521, Unsigned 64-bit columns in FITS...
You are not allowed to post comments on this tracker with your current authentication level.
task #16521: Unsigned 64-bit columns in FITS tables
Submitter: | Mohammad Akhlaghi <makhlaghi> | ||
Submitted: | Thu 21 Mar 2024 04:25:09 PM UTC | ||
Should Start On: | Wed 20 Mar 2024 11:00:00 PM UTC | Should be Finished on: | Wed 20 Mar 2024 11:00:00 PM UTC |
Category: | Libraries | Priority: | 5 - Normal |
Item Group: | Enhancement | Status: | Postponed |
Privacy: | Public | Assigned to: | None |
Percent Complete: | 0% | Open/Closed: | Open |
Effort: | 0.00 |
No files currently attached
Depends on the following items: None found
Items that depend on this one: None found
Carbon-Copy List
There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.
Follows 1 latest change.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2024-03-21 | makhlaghi | Summary | Unsigned 64-bit columns in FITS | Unsigned 64-bit columns in FITS tables |
Powered by Savane 3.13-bb6a.
Corresponding source code
Currently (as of version 0.22), Gnuastro cannot write unsigned 64-bit integer types in a FITS table column. The problem can be reproduced with the example code in the P.S.
During a recent discussion on the fitsbits mailing list, the following solution was suggested: "I have come across TZEROn = 9223372036854775808 to represent unsigned 64-bit integers (SDSS DR15 I think)."
We can implement this within Gnuastro's FITS library table reading/writing features to store unsigned 64-bit integers.
P.S. Reproducing the problem: