DDOTI: The deca-degree optical transient imager

Alan M. Watson, William H. Lee, Eleonora Troja, Carlos G. Román-Zúñiga, Nathaniel Butler, Alexander S. Kutyrev, Neil A. Gehrels, Fernando Ángeles, Stéphane Basa, Pierre Eric Blanc, Michel Boer, Jose A. De Diego, Alejandro S. Farah, Liliana Figueroa, Yilen Gómez Maqueo Chew, Alain Klotz, Fernando Quirós, Maurico Reyes-Ruíz, Jaime Ruíz-Diáz-Soto, Pierre ThierrySilvio Tinoco

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations


DDOTI will be a wide-field robotic imager consisting of six 28-cm telescopes with prime focus CCDs mounted on a common equatorial mount. Each telescope will have a field of view of 12 deg2, will have 2 arcsec pixels, and will reach a 10σ limiting magnitude in 60 seconds of r 18:7 in dark time and r 18:0 in bright time. The set of six will provide an instantaneous field of view of about 72 deg2. DDOTI uses commercial components almost entirely. The first DDOTI will be installed at the Observatorio Astronómico Nacional in Sierra San Pedro Martír, Baja California, México in early 2017. The main science goals of DDOTI are the localization of the optical transients associated with GRBs detected by the GBM instrument on the Fermi satellite and with gravitational-wave transients. DDOTI will also be used for studies of AGN and YSO variability and to determine the occurrence of hot Jupiters. The principal advantage of DDOTI compared to other similar projects is cost: a single DDOTI installation costs only about US$500,000. This makes it possible to contemplate a global network of DDOTI installations. Such geographic diversity would give earlier access and a higher localization rate. We are actively exploring this option.

Original languageEnglish (US)
Title of host publicationObservatory Operations
Subtitle of host publicationStrategies, Processes, and Systems VI
EditorsAlison B. Peck, Robert L. Seaman, Chris R. Benn
ISBN (Electronic)9781510601994
StatePublished - 2016
EventObservatory Operations: Strategies, Processes, and Systems VI - Edinburgh, United Kingdom
Duration: Jun 27 2016Jul 1 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherObservatory Operations: Strategies, Processes, and Systems VI
Country/TerritoryUnited Kingdom


  • gamma-ray bursts
  • gravitational-wave transients
  • optical transients
  • robotic telescopes
  • synoptic observations
  • wide-field imagers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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