| SOD | Year | Day of Year |
Time of Day |
Data Impact | System | Description |
|---|---|---|---|---|---|---|
| 78259001 | 2021 | 243 | 01:00 | 1 | 99 | Station servers stopped for 3.5 hours to switch to new file server, updated and cleaned server directories on SOS and SLRS. |
| 78259001 | 2021 | 237 | 23:00 | 1 | 05.05 | Coude path alignment to correct for missed step in previous alignment work. T/R box aligned as well and lenses within the box have been aligned |
| 78259001 | 2021 | 231 | 23:00 | 0 | 05.05 | Laser return system and coude path alignment. No sky test after alignment due to overcast weather |
| 78259001 | 2021 | 230 | 00:00 | 1 | 05.05 | Laser alignment work continues, fixed divergence and power issues. |
| 78259001 | 2021 | 214 | 03:00 | 1 | 05.05 | Adjustments to the laser path. Refocused the optics in the middle section of the T/R box. Pinhole camera optics aligned after being removed from the return path. |
| 78259001 | 2021 | 211 | 01:00 | 0 | 05.05 | Laser team aligning the Laser path and Coude path. Including M3 on the telescope |
| 78259001 | 2021 | 209 | 01:00 | 1 | 09.02.01 | Symmetricon GPS unit successfully synced time and timeserver is back to normal setup |
| 78259001 | 2021 | 208 | 07:00 | 2 | 09.02.01 | Symmetricon GPS unit reinstalled but could not lock signal with satellites and internal hardware. |
| 78259001 | 2021 | 207 | 01:01 | 0 | 09.02.01 | Symmetricon GPS unit failed after power outage, unit sent down to Symonston for repairs. |
| 78259001 | 2021 | 175 | 00:00 | 1 | 05.05 | Maintenance/replace the diode pump. Oscillator pump diode replaced. Current changed from 2.1A to 1.5A with 850mW power output for stable mode. |
| 78259001 | 2021 | 166 | 07:30 | 1 | 05.05 | Adjustment made to SLR laser oscillator, increased pump diode current from 2.01A to 2.11A. Increasing the power output from 0.8W to 0.86W. |
| 78259001 | 2021 | 159 | 04:30 | 1 | 05.05 | System monitor indicated pulse energy increased to 10.712 mj then up to 12.44mj and become fluctuating. Investigation needed to find out the root causes. |
| 78259001 | 2021 | 145 | 04:30 | 1 | 05.05 | Realignment of oscillator SESAM, regen amp, power amp, stabilised mount locking to correct start diode signal fluctuation issue. |
| 78259001 | 2021 | 126 | 23:30 | 1 | 05.05 | The laser team carried out laser table alignment trying to improve the laser stability and increase the pulse energy. |
| 78259001 | 2021 | 108 | 23:30 | 1 | 05.05 | T/R disk and spinning shutter failed to synchronize due to poor 100MHz signal from the laser oscillator, as a result of a depleted SESAM. Operations resumed after a new SESAM holder was prepared and installed. |
| 78259001 | 2021 | 071 | 01:30 | 1 | 05.05 | The laser team replaced SLR power amplifier. After swapping the gain modules and realigning the power amp mirrors, the total of output is around 7.7mj of 532nm. |
| 78259001 | 2021 | 035 | 03:00 | 1 | 05.05 | Start detector trigger threshold level and position adjusted, and diffuser replaced. This caused the system delay to change by 1ns and reduce tram track peak. |
| 78259001 | 2021 | 033 | 01:30 | 2 | 08.02 | System delay shift found excessive following regen diode replacement due to incorrect processing of a tram-track. Data reanalysed and database updated. SD value of 79.3075 changed to 79.7879ns. |
| 78259001 | 2021 | 024 | 22:30 | 1 | 05.05 | Replaced the regen diode pump module due to consistent low laser energy output. |
| 78259001 | 2020 | 270 | 05:30 | 1 | 05.05 | SLR system failed since the spinning disks could not synchronize, due to poor laser oscillator signal. The laser oscillator was re-aligned on the 28th, and system operations resumed. |
| 78259001 | 2020 | 259 | 05:00 | 1 | 05.05 | SLR system stopped ranging. Laser oscillator unable to generate stable pulses due to increase in clean room temperature caused by other laser experiments. |
| 78259001 | 2020 | 237 | 02:00 | 0 | 08.02 | Vaisala temperature and humidity probe sent to Finland for calibration. |
| 78259001 | 2020 | 140 | 21:00 | 0 | 99 | Replaced the existing azimuth control panel by a new one with three latest xenus digital servo drive. |
| 78259001 | 2020 | 119 | 23:00 | 1 | 04.01 | All 1m telescope coude mirrors, M3-7, except M4 were replaced with re-coated mirrors and coude path aligned. M4 was only cleaned. |
| 78259001 | 2020 | 115 | 02:00 | 1 | 05.05 | Laser power recently reduced to 3-4 mJ. PA pump diode found to be at end of life. |
| 78259001 | 2020 | 042 | 08:15 | 0 | 05.05 | T/R disk and spinning shutter not synchronized. Realigned laser beam. |
| 78259001 | 2020 | 031 | 11:15 | 1 | 99 | MTA Chiller tripped due to overheating to cause both clean rooms temperature increased significantly. Laser stopped ranging. Laser Alignment carried out. |
| 78259001 | 2020 | 003 | 23:15 | 0 | 05.05 | Extreme temperature caused the MTA Chiller to shut down. Clean room temperature increased significantly. Laser stopped ranging. |
| 78259001 | 2019 | 179 | 06:00 | 1 | 05.05 | SLR laser high power intensity fluctuating. Resolved after adjusting the oscillator. |
| 78259001 | 2019 | 169 | 00:00 | 1 | 05.05 | Spinning disk assembly removed for bearings to be replaced by Austec. Rear face of the disk suffered minor damage in the process. System returned to service. |
| 78259001 | 2019 | 149 | 02:00 | 1 | 05.05 | SLR system stopped due to failure of the T/R spinning disk bearings. |
| 78259001 | 2019 | 132 | 23:30 | 0 | 11.02 | SLR stopped while the aircraft detection camera was installed on the 1m telescope. |
| 78259001 | 2019 | 094 | 06:40 | 1 | 99 | Installed a new GPS antenna for the temporary unit to solve time bias error in data. The temporary unit configured to supply time to the systems, while the old GPS connected as primary reference for the 1PPS and 10MHz outputs. |
| 78259001 | 2019 | 056 | 05:30 | 1 | 05.05 | Due to damage to the SESAM the oscillator was not working properly preventing the spinning disk from syncing. A good area of the SESAM identified, sufficient to obtain a good signal from the oscillator. |
| 78259001 | 2018 | 343 | 23:00 | 0 | 12.03.05 | The new Vaisala AWS temperature and humidity probe was installed and rain sensors were cleaned. |
| 78259001 | 2018 | 331 | 23:00 | 1 | 05.05 | T/R box spinning disk could not synchronize. Timing signal noisy. Laser oscillator timing adjusted and laser system checked and aligned. |
| 78259001 | 2018 | 331 | 06:00 | 1 | 08.02 | Installed new vernier coefficients. |
| 78259001 | 2018 | 278 | 01:10 | 0 | 99 | The primary, secondary and tertiary (M1,M2,M3) mirrors were snow cleaned. |
| 78259001 | 2018 | 264 | 04:00 | 2 | 99 | Various applications and servers such as siteEditor, targetEditor, Profits, elsetterCPF, elsetterTLE and BRDfileSever and postProcessorServer were updated to include minor changes. |
| 78259001 | 2018 | 198 | 00:00 | 2 | 99 | System stopped while two new diode pump modules installed in the SLR power amplifier. Power now approximately 10mJ. |
| 78259001 | 2018 | 164 | 00:00 | 2 | 99 | LASS was rebuilt with spare machine by I.T. department. Ranging resumed. |
| 78259001 | 2018 | 120 | 08:00 | 2 | 99 | Major update to v3-0-0 for the following servers and apps. BRDFileServer, FileTransferServer, PostProcessingServer, Profits, Site/Target/SysCal/Minico editors, CPF & TLE elsetters, ReportManager, FileDirector, BRDFileViewer |
| 78259001 | 2017 | 320 | 01:00 | 3 | 99 | The timing cable from the Delay Generator to the SPAD was replaced with a new type of cable. Expected change to System Delay. Also installed was a new start diode monitor and energy meter monitor. Device broswer updated. |
| 78259001 | 2017 | 305 | 04:00 | 4 | 99 | Profits7 is applying incorrect refraction corrections to files generated by BRDFileServer@SLR. In particular to calibration piers as refraction is corrected on local targets. |
| 78259001 | 2017 | 184 | 05:00 | 4 | 99 | New laser system installed, with a new standing wave cavity regenerative amplifier stage, and power amplifier stage located within a closed enclosure, and mounted on a carbon fibre breadboard. SLR low power output re-established. |
| 78259001 | 2017 | 176 | 23:50 | 4 | 99 | SLR System stopped to begin laser upgrade. |
| 78259001 | 2017 | 024 | 07:00 | 2 | 99 | New mets server installed to manage messaging from new AWS310 mets station and associated PWD and rain detector sensors, |
| 78259001 | 2017 | 024 | 00:00 | 2 | 99 | Vaisala AWS310 MET station installed, including PWD sensor and two DRD11A rain detectors. Power supplied from GAs 24V supply. |
| 78259001 | 2017 | 023 | 23:00 | 1 | 99 | DORIS Mets system unplugged and removed from the roof mast as agreed with CNES. |
| 78259001 | 2016 | 188 | 05:00 | 4 | 99 | Damaged SLR laser power amplifier rod replaced. Much better beam quality evident, but no significant increase to power level made pending availability of a calibrated energy meter. |
| 78259001 | 2016 | 185 | 14:00 | 4 | 99 | Major upgrade of post processing module "Profits" and associated BRD file server. Raw range data now stored using Googles protocol buffer format. Version 7.0. |
| 78259001 | 2015 | 002 | 09:50 | 3 | 99 | Mets temperature and humidity data in error. Incorrect values received from the Vaisala MAWS logger. Pressure data OK. Good data received after logger reset. |
| 78259001 | 2014 | 363 | 03:30 | 3 | 99 | Mets temperature and humidity data in error. Incorrect values received from the Vaisala MAWS logger. Pressure data OK. Good data received after logger reset. |
| 78259001 | 2014 | 230 | 08:00 | 1 | 99 | Site stopped to install Package 12 of Control System Software. Package 12. |
| 78259001 | 2014 | 190 | 00:00 | 3 | 99 | Installed new Profits processing module that includes start diode compensation. Version 6.2. |
| 78259001 | 2014 | 148 | 01:15 | 2 | 99 | System stopped while laser power amplifier upgraded. Thales controller replaced with Northrup Grummond e-Drive and new pumps heads installed. New laser server and power amplifier installed. |
| 78259001 | 2014 | 126 | 00:00 | 3 | 99 | Major upgrade of post processing module "Profits" installed, including a new system calibration database and a new report generator. Version 6.1. |
| 78259001 | 2014 | 073 | 01:00 | 3 | 99 | T/R Box spatial filter 0.4mm pinhole replaced with 0.8mm pinhole. |
| 78259001 | 2014 | 072 | 07:59 | 1 | 99 | Server PCs (SSS and DSS) were replaced with rack mounted PCs (SLRS and DLRS) with Win7 OS. |
| 78259001 | 2013 | 351 | 01:00 | 2 | 99 | Pulse slicer controller (with replaced potentiometers) installed in 19" rack. |
| 78259001 | 2013 | 346 | 01:00 | 2 | 99 | System stopped to rebuild the laser regen amplifier stage with a new 25mm solid base plate. |
| 78259001 | 2013 | 325 | 07:00 | 2 | 99 | Mets in error with temperature and humidity out of range. Mets reset successfully on 22/11/2013. Manual entry of Mets data used for published data. |
| 78259001 | 2013 | 311 | 03:00 | 1 | 99 | SysControl PC removed from operations and replaced by the SOS( System Operations Server) PC. Serial and CAN inputs connected via the MOXA serial to Ethernet unit. |
| 78259001 | 2013 | 301 | 03:00 | 1 | 99 | New T/R disk installed and phase adjusted. |
| 78259001 | 2013 | 162 | 01:59 | 1 | 99 | Replaced Windows XP based SLR Control Computer (SCC) and SLR Analysis computers with new Windows 7 based PCs. |
| 78259001 | 2013 | 077 | 01:00 | 2 | 99 | Installed new laser server software. |
| 78259001 | 2012 | 334 | 01:00 | 1 | 99 | Regen Pockels cell replaced by an old unit and system restarted operations. |
| 78259001 | 2012 | 121 | 01:00 | 2 | 99 | Calibrated collision band and installed new parameters. |
| 78259001 | 2012 | 103 | 01:00 | 2 | 99 | System shutdown for replacement coude optic M2. |
| 78259001 | 2012 | 102 | 01:00 | 2 | 99 | System shutdown for coude optics replacement. M3,M4,M5,M6 replaced, M7 cleaned. |
| 78259001 | 2012 | 093 | 01:00 | 1 | 99 | New Pockels cell as well as driver installed. |
| 78259001 | 2012 | 082 | 01:00 | 1 | 99 | New pockels cell and driver received. New driver installed. |
| 78259001 | 2012 | 067 | 01:00 | 1 | 99 | High voltage Pockels cell driver re-installed due to poor signal. |
| 78259001 | 2012 | 061 | 01:00 | 1 | 99 | Repaired (low voltage) Pockels cell driver installed. |
| 78259001 | 2012 | 060 | 01:00 | 4 | 99 | Reprocessed data from 13-20th February to eliminate excessive mets records. |
| 78259001 | 2012 | 004 | 01:00 | 3 | 99 | Vaisala MAWS logger reinstalled successfully. |
| 78259001 | 2011 | 335 | 01:59 | 2 | 99 | New SHG crystal installed. Beam divergence increased to reduce energy density on the crystal. |
| 78259001 | 2011 | 335 | 01:00 | 1 | 99 | Beam expander mirror replaced. |
| 78259001 | 2011 | 323 | 01:00 | 1 | 99 | Replacement SHG crystal also found to be degraded. Laser beam diameter enlarged to avoid further damage. |
| 78259001 | 2011 | 321 | 01:59 | 2 | 99 | Current Pockels cell (low voltage) driver failed. Replaced by serviced high voltage driver unit. |
| 78259001 | 2011 | 320 | 01:00 | 1 | 99 | SHG crystal replaced with an old spare crystal, while waiting for delivery of a new crystal. |
| 78259001 | 2011 | 279 | 01:00 | 3 | 99 | Vaisala WXT520 met station installed as temporary replacement of existing MAWS. Met data collected automatically. |
| 78259001 | 2011 | 271 | 01:00 | 3 | 99 | Software upgrade of ranging server to improve collection of vernier calibration measurements. |
| 78259001 | 2011 | 269 | 01:00 | 4 | 99 | New Profits installed to support manual processing with manual entry of mets data. Version 5.2.7. |
| 78259001 | 2011 | 258 | 01:00 | 2 | 99 | Software upgrade of ranging server to improve collision band avoidance. |
| 78259001 | 2011 | 252 | 01:00 | 2 | 99 | New Pockels cell installed after the regen amplifier stage to filter pre-pulses. |
| 78259001 | 2011 | 227 | 01:00 | 2 | 99 | Regen Pockels Cell Driver Unit failed. Replaced by spare (low voltage) unit pending repair. |
| 78259001 | 2011 | 213 | 00:00 | 1 | 99 | Minor upgrade of control system modules. Version 2.1.4. |
| 78259001 | 2011 | 196 | 01:00 | 2 | 99 | All ILRS satellite names were modified to lower case in response to request from EDC. |
| 78259001 | 2011 | 171 | 01:00 | 1 | 99 | New spinning disk mount and coupling installed. |
| 78259001 | 2011 | 144 | 03:00 | 2 | 99 | New Semrock spectral filter installed in front of the CSPAD. |
| 78259001 | 2011 | 105 | 01:00 | 1 | 99 | GA installed new Symmetricon 5071A Cesium atomic clock. |
| 78259001 | 2010 | 333 | 00:00 | 1 | 99 | SLR regen chiller temperature sensor failed. Chiller replaced. |
| 78259001 | 2010 | 219 | 01:00 | 4 | 99 | Incorrect timebias applied for a period. |
| 78259001 | 2010 | 188 | 03:00 | 1 | 99 | Motor driving the T/R main disk failed. Replaced with a spare. |
| 78259001 | 2010 | 160 | 03:00 | 3 | 99 | Modified scripts to automatically send *.NPT files in addition to *.NP files. |
| 78259001 | 2010 | 132 | 01:59 | 1 | 13.01 | GA installed new DORIS equipment. |
| 78259001 | 2010 | 109 | 00:00 | 1 | 13.01 | Installation of JAXA equipment completed and monitoring of QZS satellites commenced. |
| 78259001 | 2010 | 102 | 03:00 | 2 | 99 | Old SLR tracking camera replaced and new camera system aligned on a star. |
| 78259001 | 2010 | 089 | 04:00 | 1 | 99 | Installed new primary mirror with wide band coating in x5 beam expander. |
| 78259001 | 2010 | 040 | 01:59 | 4 | 99 | New versions of Profits and auto post processor installed to fix identified mets bug. Version 5.2.6. |
| 78259001 | 2010 | 029 | 01:00 | 3 | 99 | Increased laser power head current to increase laser power by approx 30%. |
| 78259001 | 2009 | 358 | 01:00 | 2 | 99 | Positions of pier targets updated using new survey data. Approximately 1mm change in STN range. |
| 78259001 | 2009 | 315 | 01:59 | 2 | 99 | New MRCS timing card installed. |
| 78259001 | 2009 | 314 | 23:00 | 1 | 99 | Survey of 1m Telescope IVP completed by Geoscience Australia. |
| 78259001 | 2009 | 313 | 01:00 | 1 | 99 | Survey of calibration piers performed by Geoscience Australia. |
| 78259001 | 2009 | 293 | 01:00 | 3 | 99 | Installed new Vaisala static pressure head on mets mast. |
| 78259001 | 2009 | 259 | 01:00 | 4 | 99 | Installed new post processing and Profits software. Version 5.2.5. |
| 78259001 | 2009 | 246 | 01:00 | 4 | 99 | Installed updated post processing software and scripts. . |
| 78259001 | 2009 | 221 | 00:00 | 1 | 99 | Minor upgrade of control system modules. Version 2.1.3. |
| 78259001 | 2009 | 216 | 01:00 | 2 | 99 | Minor upgrade of control system modules installed. Version 2.1.3. |
| 78259001 | 2009 | 205 | 01:00 | 2 | 99 | Reinstalled telescope secondary mirror with new coating. |
| 78259001 | 2009 | 151 | 23:59 | 1 | 99 | Minor upgrade of control system modules. Version 2.1.2. |
| 78259001 | 2009 | 107 | 01:59 | 1 | 99 | Regen amplifier control system replaced by another spare unit. |
| 78259001 | 2009 | 051 | 01:00 | 4 | 99 | Installed new version of post-processing and Profits software plus updated data transforms to address problems with data from passes crossing 00:00 UTC. |
| 78259001 | 2009 | 023 | 01:00 | 4 | 99 | Commenced publication of data generated by automated post processing. Version 5.0. |
| 78259001 | 2008 | 354 | 01:00 | 4 | 99 | New version of Profits installed. |
| 78259001 | 2008 | 351 | 01:00 | 2 | 99 | New regen diode installed. |
| 78259001 | 2008 | 272 | 01:00 | 4 | 99 | Commenced publishing data using new post processing application in manual mode. Version 5.0. |
| 78259001 | 2008 | 250 | 15:00 | 4 | 99 | Commenced CRD report generation using local XML files. |
| 78259001 | 2008 | 102 | 01:00 | 1 | 99 | SLR Coude path upgrade with new full thickness Coude mirrors on M7, M5 and M3 |
| 78259001 | 2008 | 092 | 00:00 | 1 | 99 | Minor upgrade of control system modules. Version 2.1.1. |
| 78259001 | 2008 | 030 | 00:00 | 1 | 99 | SLR PA chiller failed. Chiller replaced. |
| 78259001 | 2007 | 284 | 01:00 | 3 | 99 | Major software upgrade of all software servers and clients. Version 2.1. |
| 78259001 | 2007 | 219 | 01:00 | 3 | 99 | Installed new vernier calibration test box for testing with new timing and ranging server software. |
| 78259001 | 2007 | 211 | 01:59 | 2 | 99 | Adjusted laser cavity to decrease beam divergence. |
| 78259001 | 2007 | 184 | 01:00 | 5 | 99 | Modifications for laser upgrade completed. Laser realignment commenced |
| 78259001 | 2007 | 171 | 01:00 | 4 | 99 | Upgrade of SLR Laser power commenced. No operations available until completed. |
| 78259001 | 2007 | 141 | 01:00 | 1 | 99 | Retroreflectors removed from all calibration piers, and provided to Geoscience Australia for offset calibration. |
| 78259001 | 2007 | 096 | 01:00 | 1 | 99 | Installed the retro-reflector from STNE on the new STR06 pillar (named as pier target STNW), to be included in subsequent minicos. |
| 78259001 | 2007 | 061 | 01:00 | 2 | 99 | Reinstallation of the ADL detectors completed and tested successfully using the ADL target on Mt Macdonald. |
| 78259001 | 2007 | 022 | 01:59 | 3 | 99 | Installed and commenced testing of auto-tracking software modules. |
| 78259001 | 2006 | 269 | 01:00 | 1 | 99 | Geoscience Australia installed new DORIS unit. |
| 78259001 | 2006 | 261 | 23:00 | 1 | 99 | Survey of the 1m Telescope IVP completed by Geoscience Australia. |
| 78259001 | 2006 | 242 | 01:00 | 2 | 99 | New DOR application installed to support use of CPF files. System changeover from IRVs to CPFs completed. |
| 78259001 | 2006 | 220 | 23:00 | 1 | 99 | Survey of calibration piers conducted by Geoscience Australia. |
| 78259001 | 2006 | 213 | 01:00 | 4 | 99 | Commenced routine operations using new software framework. Version 2.0. |
| 78259001 | 2006 | 123 | 01:00 | 2 | 99 | ADL system detector mounting was modified. |
| 78259001 | 2006 | 011 | 01:59 | 4 | 99 | Installed upgrade to LCH server to support ILRS pass restriction file, and an application to display Go/Nogo status while tracking a satellite. Report to JAXA on status of the station. |
| 78259001 | 2005 | 131 | 00:00 | 1 | 99 | New dome window glass installed. |
Latest Data
Tracking Statistics
Logs