Category: GBT Past Alerts

  • Ku-Band TCal values updated

    The default TCal values used for standard calibration have been updated for the Ku-Band receiver. 


  • GBT at 3/4 azimuth Slew Rate

    Three more azimuth wheels have been replaced during this summer maintenance period. Wheel inspection shows no advanced signs of fatigue in the remaining wheels. The restriction to 1/2 azimuth slew rate has been lifted and the GBT is now moving at 3/4 azimuth slew rate.


  • LO Doppler Tracking Issue

    Data taken with the GBT during the period March 13th, 2023 @18:00 ET – May 25th, 2023 were not corrected properly for doppler tracking in the barycentric and LSR frames.


  • FastX Upgrade

    We encourage all observers to test the new installation prior to your observations.