This page, which is courtesy of the IAU's Minor Planet Center, allows
you to retrieve orbital elements and/or efemerids for the asteroids
discovered by Marco Langbroek.
This includes provisional discoveries (temporary
designations) in the Piszkéstetö (Konkoly) survey;
provisional discoveries using 'remote' telescopes in the SSON
network; a
discovery as part of the Spacewatch FMO project; and semi-official
discoveries in the NEAT archives.
If you just want a file
with orbital elements, check "MPC 1-line" in
the options near the bottom of the page. You will get a prompt to save
the file to your computer.