Telescope
Mount: parallactic, brushless push-pull pairs of servo motors
Gears: 1:75000 reduction in four floating-gear steps
Weight: 16 tons
Tower
Design: permits only parallel platform motion, no tilts
Construction: open steel framework
Height: 15 meter
Weight: 13 tons
Canopy
Design: fold-away clam-like shell
Construction: teflon-like-coated PVC fabric on heavy steel ribs
Diameter: 7 meter
Image acquisition system
Blue cameras: Hitachi KP-F100 (1296 x 1030 px, square 6.7 micron px,
well depth 16000, 10 bits, 12 frames/s, bad non-linearity)
Field of view: 92 x 73 arcsec, 0.071 arcsec/px
Red cameras: Redlake MegaPlus II ES4020
(2K x 2K px, square 14.84 micron pixels
Field of view: 113 x 113 arcsec, 0.110 arcsec/px
Fiber links: dual way, custom made (IGF)
Location
Observatorio del Roque de los Muchachos
Instituto de Astrofísica de Canarias
Isla de La Palma, Spain
The DOT is controlled from the SST building of the
Institute for Solar Physics of the Royal Swedish Academy of Sciences
Former team
SIU director & solar physics program leader:
Prof. Dr. Christoph U. Keller
DOT builder: Dr. Ir. Robert H. Hammerschlag
DOT scientist: Prof. Dr. Robert J. Rutten
DOT engineer: Ir. Felix C.M. Bettonvil
DOT software engineer: Drs. Guus Sliepen
DOT technicians: Piet W. Hoogendoorn, Aswin Jägers
Construction
Workshop Sterrekundig Instituut Utrecht
Centrale Werkplaats Technische Universiteit Delft
Instrumentele Groep Fysica Universiteit Utrecht
Former funding
Sterrekundig Instituut Utrecht (Utrecht University)
Department of Physics and Astronomy (Utrecht University)
Utrecht University
Netherlands Organization for Scientific Research (NWO)
Netherlands Graduate School for Astronomy (NOVA)
Stichting Technische Wetenschappen STW (NWO)
Stichting ASTRON (NWO)
European Solar Magnetometry Network (EC-TMR)
European Solar Magnetism Network (EC-RTN)
North Atlantic Treaty Organization (NATO-CRG)
International Association INTAS
Stichting Optisch Zonneonderzoek in Utrecht (SOZOU)
Stichting N. van Ballegooijenfonds
Pieter Langerhuizen Lambertuszoon Fonds
U.S. National Science Foundation, via Helio Research
DOT websites
DOT: under https://robrutten.nl
= http://www.dot.iac.es
DOT database:
ftp://dotdb.strw.leidenuniv.nl
DOT search engine:
http://dotdb.strw.leidenuniv.nl/search
DOT observer wiki:
http://dotdb.strw.leidenuniv.nl/wiki