1. GLAST LAT ProjectISOC Peer Review March 2, 2004 Document: LAT-PR-03213-01 Section 5 LAT Operations Facility 1 GLAST Large Area Telescope: Section 5: LAT Operations Facility David Lung Stanford Linear Accelerator Center ISOC Subsystem Manager dlung@slac.stanford.edu Gamma-ray Large Area Space Telescope

2. GLAST LAT ProjectISOC Peer Review March 2, 2004 Document: LAT-PR-03213-01 Section 5 LAT Operations Facility 2 LOF Layout (Initial Concept) Primary requirements –LOF team (approx. 8) –SOG/SAS (approx. 2 – rest of the team is in nearby office) –Visiting scientist –Storage area Secondary requirements –Ability to house LAT collaborators during launch and initial 60 days operations

3. GLAST LAT ProjectISOC Peer Review March 2, 2004 Document: LAT-PR-03213-01 Section 5 LAT Operations Facility 3 Potential Sites – SLAC Campus Prior to launch and 1 st year sky survey, the LOF is located on the SLAC campus Possible facility sites are: Kavli Building Central Lab FSW Test Bed is located within the Central Lab

4. GLAST LAT ProjectISOC Peer Review March 2, 2004 Document: LAT-PR-03213-01 Section 5 LAT Operations Facility 4 Possible Sites – SU Campus Sometime after the 2 nd year, the LOF is to transition onto SU campus Potential sites are: –Varian Building –Kavli Building

5. GLAST LAT ProjectISOC Peer Review March 2, 2004 Document: LAT-PR-03213-01 Section 5 LAT Operations Facility 5 Other Requirements The LOF requirements are captured in LAT-SS-01783 –All workstations at the LOF are PC based (either Windows or Linux) No requirements for real-time commanding operations, all real-time commanding is performed at the MOC Command files are built off-line and verified by the test bed Primary requirements for workstations are: –Display of housekeeping telemetry –Display event messages, including command files –Telemetry processing control –Alarms and notifications –Storage of daily and weekly trending reports –Local housekeeping telemetry storage Up to 7 days on local workstations –Expect approximately 0.6 GB/day, 4.2 GB/week –With today’s technology of 300 GB disk in PC’s, that’s 71 weeks worth of housekeeping telemetry –Typical connections Internet (LAN and/or WAN) Phone/Fax Video –Presentation in section 6 addresses the software and tools for LAT operations