| SOD | Year | Day of Year |
Time of Day |
Data Impact | System | Description |
|---|---|---|---|---|---|---|
| 70802419 | 2019 | 255 | 00:00 | 3 | 14.01 | A series of lighning strikes disabled several subsystems. This permanently ended MLRS operations. RIP. |
| 70802419 | 2019 | 066 | 00:00 | 3 | 6.01.02 | MCP-PMT replaced with latest network standard, as QE of old MCP had dropped immensely. |
| 70802419 | 2018 | 317 | 00:00 | 3 | 9.01.03 | Cs clock replaced by CNS model 2 due Cs clock failure. |
| 70802419 | 2015 | 194 | 00:00 | 3 | 05.04 | Upgraded laser |
| 70802419 | 2015 | 194 | 00:00 | 0 | 11.02 | Replaced radar |
| 70802419 | 2014 | 174 | 00:00 | 1 | 99 | Replaced analysis computer OS with Ubuntu 14.04 Long Term Support |
| 70802419 | 2013 | 343 | 00:00 | 0 | 6.02 | Hamamatsu detector no longer functional |
| 70802419 | 2013 | 233 | 00:00 | 2 | 99 | Replaced controller OS with real time Linux (Ubuntu 12.04+RTAI) and ported control software |
| 70802419 | 2013 | 192 | 20:42 | 2 | 12 | Replaced Met4 unit s/n 117660 with s/n 117562. |
| 70802419 | 2013 | 192 | 00:00 | 1 | 04 | Re-align MLRS telescope and related optics |
| 70802419 | 2012 | 164 | 00:00 | 2 | 12 | Replaced Met3 meteorological sensors with Met4 (LynxOS controller) |
| 70802419 | 2012 | 045 | 00:00 | 2 | 99 | Testing using first version of Linux controller software |
| 70802419 | 2010 | 105 | 00:00 | 2 | 10 | Replaced old normal point program with new HTSI gnp normal point program. |
| 70802419 | 2010 | 067 | 00:00 | 2 | 12 | Replacement Met3 unit installed (calibration cycle) |
| 70802419 | 2010 | 030 | 00:00 | 2 | 99 | Controller system replaced with Dell 380 running LynxOS 4.2 and MLRS software |
| 70802419 | 2009 | 182 | 00:00 | 2 | 09.01.02 | Symmetricon Cs clock now station standard; TAC is backup. |
| 70802419 | 2009 | 169 | 00:00 | 2 | 10 | Processor system replaced w/ Dell Precision 380 running RHEL5 & MLRS software |
| 70802419 | 2009 | 124 | 00:00 | 2 | 10 | Old format full-rate and normalpoint dropped as CRD products have been validated. |
| 70802419 | 2008 | 023 | 00:00 | 2 | 10 | Begin parallel production processing and transmission of CRD format data with old format. |
| 70802419 | 2007 | 146 | 00:00 | 2 | 06 | Hamamatsu detector with Avantek amp added for use will high satellites and the moon. |
| 70802419 | 2006 | 127 | 00:00 | 2 | 10 | Fedora Core 4 Linux O/S installed on processor computer. All software recompiled. |
| 70802419 | 2004 | 043 | 00:00 | 2 | 10 | Processor computer upgraded with new motherboard, hard disk & Fedora Core 1 Linux O/S. All software recompiled. |
| 70802419 | 2003 | 255 | 00:00 | 0 | 7 | Baldwin abosulte and incremental yoke encode replaced with Heidenhain tape incremental encoder |
| 70802419 | 2003 | 217 | 00:00 | 2 | 05.02 | Krytron flashlamps replaced with avalanche diodes |
| 70802419 | 2003 | 137 | 00:00 | 2 | 12 | Paroscientific MET3 meteorology package (NASA network standard) |
| 70802419 | 2001 | 142 | 00:00 | 2 | 06 | New hardware bit positively identifies detector in use, and controller software puts it into the data stream. |
| 70802419 | 1998 | 225 | 00:00 | 2 | 99 | Replace controller with PC identical to new analysis workstation, running LynxOS 2.4.0 and updated software. |
| 70802419 | 1997 | 344 | 00:00 | 2 | 06 | Make Timer B return circuitry similar to that for fire to prevent sync problems with faster computer. |
| 70802419 | 1997 | 239 | 00:00 | 2 | 09 | Cesium beam replaced by crystal clock |
| 70802419 | 1997 | 181 | 00:00 | 2 | 10 | Linux-based on-site analysis system (HP replacement) |
| 70802419 | 1996 | 087 | 00:00 | 2 | 12 | Installation of new temperature and humidity sensor |
| 70802419 | 1995 | 065 | 00:00 | 2 | 99 | LynxOS-based controller system |
| 70802419 | 1995 | 001 | 00:00 | 2 | 06.02 | APD added as another lunar detector |
| 70802419 | 1994 | 001 | 00:00 | 2 | 10 | New onsite processing for full rate & quick-look data products. |
| 70802419 | 1993 | 162 | 00:00 | 2 | 10 | Software change -- Quick-look data. (Engineering & NP). Caused by colloc. testng range bias discovery. |
| 70802419 | 1992 | 226 | 00:00 | 2 | 10 | HP Normalpoint software upgrade installed - Poisson filter. |
| 70802419 | 1992 | 101 | 00:00 | 2 | 10 | S/w change to optimize normal-point integration step size & degree/order |
| 70802419 | 1991 | 185 | 00:00 | 2 | 10 | HP s/w changes installed to enhance q/l & normalpoint data production. |
| 70802419 | 1991 | 100 | 00:00 | 2 | 10.01 | HP Computer hdwre & s/w installed. |
| 70802419 | 1990 | 335 | 00:00 | 2 | 06.01 | All satellite data is now taken with MCP |
| 70802419 | 1990 | 268 | 00:00 | 2 | 06.01 | MCP installed for Lageos data. (Note: Etalon data will continue to be taken using the Varian PMT.) |
| 70802419 | 1990 | 157 | 00:00 | 2 | 06 | Phase 3B mod removed - now using Phase 3A timing configuration. |
| 70802419 | 1990 | 120 | 00:00 | 2 | 06 | Using Phase 3B timing - TD811. |
| 70802419 | 1990 | 094 | 00:00 | 2 | 08.01 | Spider Calibration Config. |
| 70802419 | 1990 | 026 | 00:00 | 2 | 06 | Insertion of an "OR" Gate. |
| 70802419 | 1990 | 016 | 00:00 | 2 | 06 | Notch Discr. capability. |
| 70802419 | 1989 | 322 | 00:00 | 2 | 06.02 | Varian with no amplifier receive configuration. (Lunar, high satellites) |
| 70802419 | 1989 | 271 | 00:00 | 2 | 06.01 | MCP moved to Port 2 for Varian PMT/MCP switch |
| 70802419 | 1989 | 256 | 00:00 | 2 | 09 | Constant clock phase gate modification |
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