Useful RRAT Stuff
As the name suggests this repository has, and will have more (!), tools for dealing with Rotating Radio Transients (RRATs).
getper
One thing you might want to do is get underlying periodcities when you have a possibly very high nulling fraction.
- CHIME Repeater
CHIME reported a periodicity for one of their repeating FRBs here: https://arxiv.org/abs/2001.10275. To have a look at that one could just run the data from their Extended Data Table 1, in the following way, to get a plot like that in period.png
python getper.py -i CHIME_seconds -p1 86400.0 -p2 8640000.0 -maxdiff 86400000.0 -pstep 8640.0 -days 1
run with a -h to see what the options are.
- 12.1-s Pulsar
This code was used to find the period of the 12.1-s pulsar, discovered in the SUPERB project. See here: https://arxiv.org/abs/1910.04124
A good rule of thumb is that you should have at least 8 'TOAs' (so 28 pairs of TOAs) within a time window where they are all in phase wrt respect to the uncertainty of the TOA determination (i.e. sqrt(N)*sigma_TOA << P_trial) and then you will probably find the right period. More and it is easier. Less and you migt not get it, or might get a different harmonic. As it happens after the first detection we thought the 12.1-s pulsar was a 6.05-s pulsar until we re-observed it and had more pulses to play with.