Subject: [SLR-Mail] No.2018: Mt Stromlo Removal of Laser Pre-pulses From: Chris Moore ******************************************************************************** SLR Electronic Mail 2011-09-15 07:15:05 UTC Message No. 2019 ******************************************************************************** Author: Christopher Moore Until last week, the laser system at STL3 produced a train of pre-pulses th= at caused tram-tracks in the received data. Tram tracks associated with the= pre-pulses were filtered during the post-processing stage ( using largely = automated facilities ). However this had led to some issues of signal ambig= uity and hence data corruption particularly when strong signals were receiv= ed. To eliminate the pre-pulses, a new Pockels cell has been installed, and= as of the 13th September 2011, data from Mt Stromlo should be free of this= data corruption problem. Regards Chris Dr Christopher Moore Manager, Mt Stromlo SLR Station Electro Optic Systems Pty Ltd EOS House Mount Stromlo Observatory Cotter Road (Locked Bag No 5000) Weston Creek ACT 2611Australia Ph: +61 2 6222 7983 Fax: +61 2 6287 2951 Mobile: 0411 243 227 Email: cmoore@eos-aus.com ABN: 11 008 587 451 www.eos-aus.com ********************************************************************************