Scientific Cameras

Scientific Cameras

Designation Format Field of View Main Goal
  Apogee U42 2k x 2k 4' x 4'

Test instruments &

Early Science

  ARC 4k x 4k 8.8' x 8.8'

General purpose

  ULTRASPEC 1k x 1k 7.6' x 7.6'


Fast Readout Imaging

  Point grey 1k x 1k 42.4" x 42.4" Planet


Apogee U42

The Apogee U42 4 megapixel camera is employed at the initial commissioning phase of the telescope, and the early science until  ARC camera is available. It is equipped with UBVRI, LRGB and a set of Stromgren filters.




ARC is the main TNO 16 megapixel camera, delivered under the contract with ACE (Astronomical Consultants & Equipment Inc.) as camera and auto-guider. The camera is equipped with UBVRI, H-alpha and red continuum filters.




Delivered under a Memorandum of Understaning of NARIT, the University of Sheffield and the University of Warwick, ULTRASPEC will be in use at TNO for two years. It is based on a state-of-the art low-light level (L3) Electron Multiplying CCD by e2V with 1k x 1k x 13-megapixel chip.


Point Grey


Point grey, a 1-megapixel camera with a set of UV, BVR, IR and methane filters, is a Grasshopper Express camera widely employed in the study of planetary atmosphere.



The spectrographs to complement the TNT are listed in Table below. Only one spectrograph at a time may be mounted. Spectrographs for the TNT



Spectral Range


Main Goal



390-800 nm


  Test Instruments



430-710 nm


  Test Instruments & Early Science



380-900 nm


  Facility Scpectrograph




A simple but efficient spectrograph, utilizing a bundle of fibers lined up in a long-slit arrangement, donated to NARIT by the University of Manchester through Professor John Meaburn contact.




eShel is a commercial product from the Shelyak manufacturer in france. It employs optical fiber line fed with the QSI632, 2184x1472 pixels.




This is the NARIT facility spectrograph based on Andor 2048 x 512, back-illuminated CCD. It is currently being under construction following a contract with the Nanjing institute of Astronomical Optical & Technology (China). Upon its completion, MRES will be on floor of control building.