NICER observation list: Target ID 355001

We recently detected a glitch in the spin of 1E 1207.4-5209, the central compact object (CCO) in SNR PKS 1209-51/52. This is unprecedented for a pulsar with a spin-down rate as small as those found for CCOs, but it may support a timely conjecture that glitches could be triggered in CCOs by diffusion of a strong, buried internal field that rivals those found in magnetars, NSs with surface magnetic fields 10,000 times greater than the weak dipole fields inferred for CCOs. We propose to continue timing 1E 1207.4-5209, to monitor its post-glitch behavior and to obtain a sufficiently precise measurement of its new spin-down rate to test for a change in surface magnetic field strength. This may allow the first measurement of magnetic field growth on a CCO.