Summary: Last night I performed a number of hardware injections see aLog 22424 and aLog 22426. Waveforms: The waveforms were provided by Max and Francesco on behalf of the Burst group. The single-column ASCII files are located in the injection SVN: https://daqsvn.ligo-la.caltech.edu/svn/injection/hwinj/Details/Inspiral/${IFO}/ringburstinj*.out The parameters files are located: https://daqsvn.ligo-la.caltech.edu/svn/injection/hwinj/Details/Inspiral/ringburstinj*.xml.gz First Set of Injections: Originally the plan was to space the injections 180s apart. I used tinj to schedule the injections so they are all H1L1 coherent injections. The following injections were successful: 1128657857 1 1.0 ringburstinj1a_1126259456_ 1128658217 1 1.0 ringburstinj2a_1126259456_ 1128658577 1 1.0 ringburstinj3a_1126259456_ 1128658937 1 1.0 ringburstinj4a_1126259456_ 1128659297 1 1.0 ringburstinj5a_1126259456_ Note that the GPS time above (first column) is the time the injection began. The end times are ~6s after this time. The exact end time can be calculated from the parameter files. Also recall from aLog 21487 that all analysis should have a 255us advance. The following injections were skipped, ie. not injected, because tinj couldn't inject signals every 180s. The following were skipped injections and thus not successful: 1128658037 1 1.0 ringburstinj1b_1126259456_ 1128658397 1 1.0 ringburstinj2b_1126259456_ 1128658757 1 1.0 ringburstinj3b_1126259456_ 1128659117 1 1.0 ringburstinj4b_1126259456_ 1128659477 1 1.0 ringburstinj5b_1126259456_ We then had an external alert during the test. The injection in the queue was canceled at H1 but the injection was not canceled at L1. Duncan, Peter, Alex are investigating why this happened. The following injection was not performed at H1 but it was performed successfully at L1: 1128659657 1 1.0 ringburstinj6a_1126259456_ I then deleted the future injections from the schedule since it did not seem like L1 properly ignored the last injection. See aLog 22425 for the lines that were deleted. Second Set of Injections: We continued the hardware injections later in the night after waiting so the external alert had a stretch of clean data. The injections were spaced 360s apart this time and there was no problem with tinj handling injections this frequent. The following injections were successful: 1128666017 1 1.0 ringburstinj1b_1126259456_ 1128666377 1 1.0 ringburstinj2b_1126259456_ 1128666737 1 1.0 ringburstinj3b_1126259456_ 1128667097 1 1.0 ringburstinj4b_1126259456_ 1128667457 1 1.0 ringburstinj5b_1126259456_ 1128667817 1 1.0 ringburstinj6a_1126259456_ 1128668177 1 1.0 ringburstinj6b_1126259456_ 1128668537 1 1.0 ringburstinj7b_1126259456_ 1128668897 1 1.0 ringburstinj8a_1126259456_ 1128669257 1 1.0 ringburstinj7a_1126259456_ 1128669617 1 1.0 ringburstinj8b_1126259456_ 1128669977 1 1.0 ringburstinj9a_1126259456_ 1128670337 1 1.0 ringburstinj10a_1126259456_ 1128670697 1 1.0 ringburstinj11a_1126259456_ 1128671057 1 1.0 ringburstinj12a_1126259456_ 1128671417 1 1.0 ringburstinj13a_1126259456_ 1128671777 1 1.0 ringburstinj14a_1126259456_ 1128672497 1 1.0 ringburstinj15a_1126259456_