Analisys of a northern october delta arietid fireball imagen in 2012

Abstract

The continuous monitoring of the night sky by means of high-sensitivity CCD video devices provides helpful information about the activity of major and minor meteor showers. In this way, different physico-chemical parameters of meteoroids ablating in the atmosphere can be obtained. These include trajectory, radiant, orbit, mass and tensile strength [1, 2]. One of these minor showers is the Northern October δ Arietds, which is currently included in the IAU list of working meteor showers with code 0025 NOA. So, additional observations of this shower can be very helpful to improve our knowledge about the NOA meteoroid stream. In particular, the calculation of precise orbital parameters is fundamental in order to analyze the origin and evolution of this stream. The determination of such orbits is one of the aims of the SPanish Meteor Network (SPMN). Thus, as a result of our continuous fireball and spectroscopic campaigns, three of our meteor monitoring stations recorded on October 17, 2012 a mag. -8 NOA fireball that was catalogued as SPMN171012. Its emission spectrum was also obtained. This event is analyzed here.