Green Bank Interferometer - Technical Data: 2-element Interferometer

Technical Data: 2-element Interferometer

  • Baseline: 2400 meters at an azimuth of 62 degrees (E of N).
  • Bands: 8.3 GHz (X-band) and 2.25 GHz (S-band) with 35 MHz bandwidth.
  • Receivers: Cryogenically cooled, dual frequency, dual polarization. Both X and S bands simultaneously observed in both right and left circular polarizations.
  • System temperature: About 35 K in Sband and 45 K in Xband.
  • Sensitivity: RMS noise in a 5-minute scan is about 6 mJy in S-band and 10 mJy in X-band for point sources.
  • Minimum integration time: 30 seconds.
  • Resolution: About 3 arcseconds fringe at X-band and 11 arcseconds at S-band.

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