Joel H. Castro-Chacón, Matthew Lehner, Mauricio Reyes-Ruiz, Benjamín Hernández, Charles Alcock, Chung Kai Huang, Kem H. Cook, John C. Geary, L. Figueroa, C. Guerrero, J. B. Hernández-Águila, Juan C. Narvaez, Timothy Norton, Fernando Quiroz, E. Sánchez, Shiang Yu Wang, José S. Silva, Andrew Szentgyorgyi, You Hua Chu, Wei Ling YenWen Ping Chen, Zhi Wei Zhang

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


In this work, we present the general procedure for the robotic observations of the Transneptunian Automated Occultation Survey (TAOS II). The project aims to detect small TNOs (Transneptunian Objects) by serendipitous stellar occultations. To do so TAOS II will operate three 1.3 m telescopes equipped with CMOS cameras which are able to read about 10,000 stars in multiple sub-apertures at a 20 Hz cadence. At such rates, it will be possible to identify diffraction features in the lightcurves, helping us to estimate a distance and object size to each occultation event. TAOS II is installed in the Observatorio Astronómico Nacional in San Pedro Mártir, Ensenada, México (OAN-SPM). The site has good observing conditions, typically with around 260 useful nights per year. Here, we describe the different process to be performed in a typical observing night: system start up and shut down, monitoring observing conditions, acquisition of calibration images, field selection, pointing, camera synchronization, determination of aperture sizes and positions, and high speed image acquisition.

Original languageEnglish
Pages (from-to)137-139
Number of pages3
JournalRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
StatePublished - 2019
Event6th Workshop on Robotic Autonomous Observatories, RMxAC 2021 - Mazagon, Huelva, Spain
Duration: 30 Sep 20194 Oct 2019


  • Kuiper belt: general
  • occultations
  • surveys
  • telescopes


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