Electron Capture from Atomic Nitrogen by Protons

The total Oppenheimer-Brinkman-Kramers (OBK) cross sections for $1s$-, $2s$-, and $2p$-orbital electron capture from atomic nitrogen by protons are adjusted to correspond to capture from ${\mathrm{N}}_2$ by deuterons, and are compared with recent measurements of Berkner et al. Calculated cross sections for $1s$ capture are dominant above 3 MeV, and the total OBK cross section still exceeds the measured cross section at the deuteron energy of 21.5 MeV.