Reports until 13:21, Tuesday 12 January 2016
H1 INJ (INJ)
cregg.yancey@LIGO.ORG - posted 13:21, Tuesday 12 January 2016 (24900)
HWInjReport 1136505617 - 1136654705

HWInjReport 1136505617 - 1136654705

Performed a run spanning the time period from 1136505617 (Jan 11 2016 00:00:00 UTC) to 1136654705 (Jan 12 2016 17:24:48 UTC)

Parameters

The following parameters were used for this run:

Scheduled Injections

Ten injections were found to be scheduled to occur within this time period. All 10 were found to occur within the time period.

These match the ten injections recently created by Chris Biwer: https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=24873https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=24888

Network and IFO Injections

There were 10 network injections found. None of these injections occurred as single-IFO injections. While all injections occurred consistently in the ODC-MASTER and GDS-CALIB channels across HOFT, RAW, and RDS frame files, they were not found to occur in the CAL-INJ channel in the RAW frame files (see discussion below); consequently all were flagged as anomalous by HWInjReport (even though, as discussed below, they may not be). All of the injections appear to have occurred with 1-2 millisecond coincidence times, with each injection occurring first at L1 and then at H1. All injections were of type CBC.

Discussion of Anomalies

All of the injections found were considered inconsistent by HWInjReport because they were not found to occur in the CAL-INJ_ODC_CHANNEL_OUT_DQ channel. However, it has come to my attention that this channel is replaced by CAL-PINJX_ODC_CHANNEL_OUT_DQ (need confirmation; this channel was found by review of some past emails and making an educated guess), which is currently not supported by HWInjReport. Cursory examination of the channel with FrBitmaskTransitions (HWInjCheck, also, does not support the new channel) for injection at 1136584228.995 does indeed reveal the injection to occur at that time in CAL-PINJX_ODC_CHANNEL_OUT_DQ with the expected TRANSIENT (bit 9) and CBC-type (bit 10) injection bits set to “off”. I expect the same will be true for all the other injections. This is likely also the case for injections found during the period of Dec 12 2016 to Jan 6 2016 https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=24747, which also were missing indications of occurrence in CAL-INJ_ODC_CHANNEL_OUT_DQ. It is likely that all injections would be flagged as normal injections if HWInjReport supported the CAL-PINJX channel.

It should not be difficult to upgrade HWInjReport to support the new channel and include the feature in the next release version. After such time, this run can be repeated to confirm that the injections do not contain any further anomalies.

Non-image files attached to this report