Imagine the Universe!

The Rossi X-ray Timing Explorer


artist concept of RXTE
The Rossi X-ray Timing Explorer, RXTE, was launched on December 30, 1995. RXTE is designed to facilitate the study of time variability in the emission of X-ray sources with moderate spectral resolution. Time scales from microseconds to months are covered in a broad spectral range from 2 to 250 keV. It is designed for a required lifetime of two years, with a goal of five years.

Mission Characteristics

* Lifetime : 30 December 1995 to the present
* Energy Range : 2 - 250 keV
* Special Features : Very large collecting area and all-sky monitoring of bright sources
* Payload :
  • Proportional Counter Array (PCA)
    2-60 keV energy range, 6500 sq cm, time resolution 1 microsec
  • High Energy X-ray Timing Experiment (HEXTE)
    15-250 keV energy range, 2 X 800 sq cm
  • All-Sky Monitor (ASM)
    2-10 keV energy range, 30 mCrab sensitivity
* Science Highlight:
  • Discovery of kilohertz QPO's
  • Detection of X-ray afterglows from Gamma Ray Bursts
  • Extensive observations of the soft state transition of Cyg X-1
  • Observations of the Bursting Pulsar over a broad range of luminosities, providing stringent test of accretion theories.

* Archive : Catalogs, Spectra, Lightcurves, and Raw data


For Further Information .....
RXTE Guest Observer Facility (http://heasarc.gsfc.nasa.gov/docs/xte/xte_1st.html) [Researchers]
RXTE Learning Center (http://heasarc.gsfc.nasa.gov/docs/xte/learning_center/) [Public Interest/Education]
Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Laboratory for High Energy Astrophysics at NASA's Goddard Space Flight Center.

The Imagine Team
Project Leader: Dr. Jim Lochner
All material on this site has been created and updated between 1997-2004.

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