Neutron Star Interior Composition Explorer

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An artist's concept of the NICER instrument on board the International Space Station.
General Informations
Organization NASA/Goddard Space Flight Center/MIT
Mission Type Space telescope
Host Satellite International Space Station
Launch December 2016 [1]
Mission duration 18 months [2]
Wavelength X-ray
Mass Unknown
Max length Unknown
Power consumption Unknown
Orbital elements (ISS)
Apogee 417 km (259 mi) AMSL[3]
(15 May 2013 07:41:29 epoch)
Perigee 410 km (250 mi) AMSL[3]
(15 May 2013 07:41:29 epoch)
Orbital Inclination 51.6 degrees[3]
Orbital period 92 minutes 50 seconds[3]
(15 May 2013 07:41:29 epoch)
Website NICER Home

The Neutron star Interior Composition ExploreR (NICER) is a future NASA Explorer program mission dedicated to the study of the extraordinary gravitational, electromagnetic, and nuclear physics environments embodied by neutron stars, exploring the exotic states of matter where density and pressure are higher than in atomic nuclei. NICER will enable rotation-resolved spectroscopy of the thermal and non-thermal emissions of neutron stars in the soft (0.2–12 keV) X-ray band with unprecedented sensitivity, probing interior structure, the origins of dynamic phenomena, and the mechanisms that underlies the most powerful cosmic particle accelerators known.[1] NICER will achieve these goals by deploying, following launch in December 2016, an X-ray timing and spectroscopy instrument as an attached payload aboard the International Space Station (ISS). NICER was selected by NASA to proceed to formulation phase in April, 2013.[4]


  1. ^ a b c NICER Team. "The Neutron star Interior Composition ExploreR (NICER): an Explorer mission of opportunity for soft x-ray timing spectroscopy" (PDF). Goddard Space Flight Center. Retrieved 2013-04-08. 
  2. ^ a b NICER Team. "Neutron star Interior Composition ExploreR". Goddard Space Flight Center. Retrieved 2013-04-08. 
  3. ^ a b c d e "ISS - Orbit". Heavens Above. May 15, 2013. Retrieved May 15, 2013. 
  4. ^ NASA Headquarters. "NASA Selects Explorer Investigations for Formulation". NASA Headquarters. Retrieved 2013-04-23. 

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