DDOTI is a wide-field robotic imager with an instantaneous field of view of about 72 square degrees. DDOTI stands for “Deca-Degree Optical Transient Imager”.

The key science goals of DDOTI are the localization of the optical transients associated with relativistic stellar transients — gamma-ray bursts detected by the GBM instrument on the Fermi Gamma-Ray Space Telescope and with gravitational-wave events detected by LIGO and Virgo. These transients typically have positional uncertainties of order 100 square degrees, and so their localization requires a wide-field imager like DDOTI.

DDOTI will also be used for studies of variability in active galactic nuclei and young stars and to determine the occurrence of hot Jupiters.

The first DDOTI/OAN imager is being commissioned at the Observatorio Astronómico Nacional in Mexico. We are planning to install the second DDOTI/OHP imager at the Observatoire de Haute-Provence in France.

For more details, see Watson et al. 2016, Proc. SPIE, 9910, 99100G: “DDOTI: the deca-degree optical transient imager” (ADS|SPIE|Local).

DDOTI is a collaboration between:

with funding from:

DDOTI is lead by: