Systematic Uncertainties in the NOvA Oscillation Analysis

NOvA is a long-baseline accelerator neutrino oscillation experiment using the NuMI neutrino beam at Fermilab. Its physics goals are probing the neutrino mass hierarchy, CP-violating phase $\delta_{cp}$ and octant of $\theta_{23}$ mixing angle by observing the $\nu_e$ appearance and $\nu_{\mu}$ disappearance signals. Two functionally identical detectors are placed off-axis from the centre of the NuMI beam. The near detector at Fermilab is 100 m underground, blocking a great number of cosmic rays, and the far detector located at Ash River, 810 km away from the beam source. Systematic uncertainties originating from beam flux, cross section, detector response, calibration, and other sources play a siginificant role in the NOvA analysis. This talk will present details of the systematic uncertainties and their effects on NOvA's latest precision measurements in both $\nu_e$ appearance and $\nu_{\mu}$ disappearance oscillation channels.