Ephemeris prediction for asteroid (151878) 2003 PZ₄ up to MJD 60000 in terms of RA relative to the best-fit value. The 1σ and 3σ credible intervals are shown in darker and lighter gray, respectively. The red line shows the asteroid’s topocentric distance as a function of time. The green color represents times when the asteroid is observable assuming a topocentric observer, by requiring that the solar elongation is greater than 60 degrees, and the apparent V magnitude is less than 21.