Young pulsars are critical for probing the early stages of neutron stars, offering insights into their initial spin periods, velocities, and luminosities. If they is present in supernova remnants (SNRs) then they also illuminate the broader phenomena of star deaths and the properties of supernovae. The proximity of a newly discovered pulsar PSR J1646-4451 to a potential SNR presents a unique opportunity to study the interplay between the pulsar and its surroundings. PSR J1646-4451 was first detected as a circularly polarized source in ASKAP's VAST survey in a close proximity of a likely SNR shell. In subsequent observations with the Ultra-Wideband Low (UWL) receiver system on the Parkes radio telescope (Murriyang), the source was confirmed as a pulsar with a spin period of 217 ms and a very high dispersion measure (DM) of 930 pc cm^-3. The pulsar is highly scattered and invisible below 2 GHz, meaning that UWL is the only instrument which can be used to study this interesting pulsar. The goal of this proposal is to measure the pulsar's characteristic age by conducting follow-up timing observations in 2024APRS. Determining the characteristic age of the pulsar is the first key step to establishing evidence for or against a possible association between the pulsar and the nearby SNR.
