Puli Ilkaringuru (H5) and Ischgl (LL6) added

Puli Ilkaringuru is a H5 chondrite which fell in 2019 and was later found by the Australian Desert Fireball Network team. There is no paper yet, the orbital data are derived from the values given in the MetBull database, therefore, both the argument of perihelion and the longitude of the ascending node are not available (similar to the situation with Al-Khaddaf, Oman). I will add these values once properly published in a peer reviewed journal.

Ischgl (LL6) is a meteorite found in 1976 near the austrian village of Ischgl (close to the border with Switzerland). Only recently was it realized that a large fireball had terminated in the area, just a few years earlier, in 1970. A new publication by Gritsevich et al. suggests that this fireball is a very likely source for the Ischgl meteorite: it matches both the mass of the recovered meteorite, its find location and pristine condition. Also, the cosmogenic radionuclide and noble gas inventory of Ischgl can be brought into agreement with the inferred pre-atmospheric mass. This makes Ischgl the third-oldest meteorite (in historical sequence) with an orbit, predating the Innisfree fall by 7 years.

Full disclosure: I am a co-author on the Ischgl paper.

New paper out: Dishchii’bikoh in MAPS

A new meteorite with an orbit has been published in Meteoritics & Planetary Science (MAPS): Dishchii’bikoh. It is a rare LL7 chondrite which fell near the city of Cibecue in Arizona / USA, and takes its name as pronounced in the language of the local White Mountain Apache tribe. Several fragments of almost 80 g total mass were recovered using the weather radar footprint of the fall. The orbit of the meteorite is remarkable for being relatively short (1.13 AU semi-major axis) and steeply inclined (ca. 21° to the ecliptic). Radionuclides suggest it was a relatively large meteoroid, at R = 60-100 cm. The cosmic-ray exposure age is quite typical for an ordinary chondrite, at 11 Ma. It seems likely the meteorite derived from the Flora family of asteroids in the inner asteroid belt, similar to other recent LL chondrite falls, like Stubenberg (2016) and Chelyabinsk (2013).

Full disclosure: I am a co-author on the paper. /m4