Here are the light curves. Note the data is smoothed so loses some intensity data. Also “time” is given to indicate the temporal evolution direction.
First two have a fainter first component then brighter second component and third one is the reverse, bright then fainter. So this indicates that there is no universal model for what should happen with binary component meteors.
Meteoroid structure and ablation implications
from multiple maxima meteor light curves.
Roberts, I.D.1, Hawkes,R.L.1, Weryk,R.J.2, Campbell-Brown,M.D.2,
Brown,P.G.2;3, Stokan, E.2 and Subasinghe, D.2
1Department of Physics, Mount Allison University, Sackville, Canada (email: email@example.com)
2Department of Physics and Astronomy, University of Western Ontario, London, Canada
3Centre for Planetary Science and Exploration, University of Western Ontario, London, Canada
from Proceedings of the Meteoroids 2013 Conference
Aug. 26-30, 2013, A.M. University, Poznan, Poland
Jopek T.J., Rietmeijer F., Watanabe J., Williams I.P., ed.
for further ideas on whats going on.