Ground Based Observatories GBO THEMISGBO Kick Off UCB

Ground Based Observatories (GBO) THEMIS/GBO Kick. Off UCB, June 2, 2003

Ground Based Observatories Observatory elements • • Environmental enclosure All Sky Imager (ASI) Ground Magnetometer (GMAG) GPS receiver for time sync Method for unattended Data Collection Stream 1 compressed data daily transmission Stream 2 high res. data periodic collection THEMIS/GBO Kick. Off 2 UCB, June 2, 2003

GBO Site Requirements All Sky viewing • Minimal local light contamination Clear of magnetic interference Power (120 V, 60 Hz, TBD Amps) Telephone line THEMIS/GBO Kick. Off 3 UCB, June 2, 2003

Observatory Enclosure Req’s. Operate in external temperature range of -60° to +50°C (TBR) Maintain appropriate internal temperature (~ 20°) Compatible with ASI dome, provide heated air flow Provide controlled internal airflow to prevent overheating. Suitably rugged, stable mounting, shock protection THEMIS/GBO Kick. Off 4 UCB, June 2, 2003

All Sky Imager All Sky Lens • AGO heritage “Starlight-Xpress” MX 716 • • • Cooled CCD 16 -bit pixel data 752 x 580 format THEMIS/GBO Kick. Off 5 UCB, June 2, 2003

ASI Camera THEMIS/GBO Kick. Off 6 UCB, June 2, 2003

GBO Computer Candidate Data. Lux Data. Brick III • • Pentium III Compact size Low power (18 W) Rugged, shock mounted internal HDD Operating Temp: 0º to 50º C Storage Temp: -20º to 65º C Built-in Thermal Management OS: Win 98/2000/XP, or Linux THEMIS/GBO Kick. Off 7 UCB, June 2, 2003

GBO Computer Data. Lux Data. Brick III Dimensions: 264 x 140 mm THEMIS/GBO Kick. Off 8 UCB, June 2, 2003

Computer I/O T se a al i er S Ports Available 2 All Sky Imager 2 B 00 1 / 10 B US 1 2 Ground Magnetometer GPS VSAT Phone Line Modem Swappable HDD THEMIS/GBO Kick. Off M C P A CI 9 UCB, June 2, 2003

Site Software Functional Req. Instrument Control • • • Data Transfer • ASI Exposure/Rep Rate GPS Setup GMAG? – – – Synoptic Data Recording • • ASI – – Stream 1 Stream 2 – Full resolution Stream 1 compression Swappable HDD Management • • GMAG GPS time sync THEMIS/GBO Kick. Off VSAT Phone Line IRIDIUM 10 Operates on Time Line Remote Control Capable UCB, June 2, 2003

Data Archival Stream 1 Capture • 39 Mbit/day per station (20 stations) Stream 2 Capture • 63 Gbyte/season THEMIS/GBO Kick. Off 11 UCB, June 2, 2003

Schedule THEMIS/GBO Kick. Off 12 UCB, June 2, 2003

Communication THEMIS ftp site ftp: //apollo. ssl. berkeley. edu/pub/THEMIS/GBO Kick. Off 13 UCB, June 2, 2003

Communication Email list server, visit web site and suscribe: http: //deadsun. ssl. berkeley. edu/mailman/listinfo/themis-ground-obs THEMIS/GBO Kick. Off 14 UCB, June 2, 2003