DELTA PAVONIDS 2019

     P. Jenniskens, SETI Institute and NASA Ames Research Center, and J. W. Baggaley, University of Canterbury in Christchurch, New Zealand, report that an outburst of delta Pavonids (IAU shower 120, code DPA) has been detected by the CAMS New Zealand stations operated by P. Aldous (Geraldine) and I. Crumpton (West Melton). On March 31, five meteors radiated from a compact geocentric radiant at R. A. = 309.3 +/- 0.3 deg., Decl. = -60.3 +/- 0.2 deg., with a geocentric speed of 59.0 +/- 0.9 km/s during the brief interval between 17h36m and 17h45m UTC, corresponding to solar longitude 10.4560?10.4615§, J2000 (c.f., March 31 radiant map displayed at http://cams.seti.org/FDL/). The meteoroids had orbital elements q = 0.928 +/- 0.004 AU, i = 110.2 +/- 0.9 deg., w = 329.0 +/- 1.4 deg., and Node = 190.461 +/- 0.003 deg., with the semi-major axis of the parent comet orbit likely in the relatively short range of 20?100 AU. Visual observers have reported an associated annual meteor shower (c.f. Jenniskens P., 2006. Meteor Showers and their Parent Comets, p. 315), but until now this shower was not detected by CAMS. The parent comet is C/1907 G1 (Grigg-Mellish), poorly observed in 1907, with parabolic orbital elements q = 0.924 AU, i = 110.06 deg., w = 328.76 deg., and Node = 190.417 deg., in good agreement when allowing for the motion of the node due to planetary perturbations.