  Bounds on the absorptive (imaginary) parts of the top quark chromomagnetic
$\hat{\mu}_t$ and chromoelectric $\hat{d}_t$ dipole moments are obtained by
reinterpreting the most recent LHC data in top quark pair production. It is
found that both limits are of the order of $10^{-1}-10^{-2}$, which are
consistent with the standard model prediction of ${\rm
Im}\big[\hat{\mu}_t\big]$. The effects of the absorptive parts of the top quark
dipole moments are also studied via some kinematic distributions of $\bar{t}t$
production, though no significant deviation from the standard model leading
order contribution is observed. Our bounds can be useful to constrain the
parameter space of standard model extensions.
