Working version as of 5-June-2026 UFO finder working with up to 8 nuclides and 20 total atoms The UFO finder can calculate across large range of lap numbers differnt from the reference if circulation time is available. UFO finder is now very fast, provides a progress bar, and can be interrupted.

The analyte finder works fine. Using two references at same lap number you can calculate the inherent delay t0. Using two references at different lap numbers you can calculate the circulation time ("b-value") of reference #1.

The time of flight of an known analyte can be calculated at any lap number if b and t0 are calculated or directly input by the user. A bug still exists in calculating the atomic mass deviation from AME21 from a provided analyte time-of-flight.

If the lap number is not known for reference #2 or for the analyte, it can be determined by supplying the ejection time from the MRTOF if values for b and t0 are provided or have been calculated already.

The provided files are for building Electron app. Please use Node v22 for now, as later versions have been seen to have conflicts with the current release of Electron Forge. For testing:

git clone https://github.com/phschury/calcme.git

cd calcme

npm install

npm start

To build:

npm install

npm run make

A Javascript version for use with web server is available in /ufo_finder_web_static

It can be also be found running at https://research.kek.jp/group/wnsc/CalcMRTOF/