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GBT Observer Alert
Balance failing for PF800 [1]
The Green Bank Observatory is aware that the AstrID Balance() command is failing for observations… Read More … [1]
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GBT Observer Alert
PF800 noise diodes [2]
The noise diodes for PF800 are known to be incorrect. Read More … [2]
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GBT Observer Alert
Change in balance command [3]
We have released a change in the behavior of the Balance() command on the GBT. Read More … [3]
Past Notifications
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GBT at Full azimuth Slew Rate
The GBT has returned to the regular full azimuth slew rate.
Read more [4]
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RH8 UPGRADE COMPLETE
The Green Bank Observatory has finished the process of upgrading to Red Hat 8 (RH8). Observations can again be done with either machine Ariel or Titania!
Read more [5]
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Ku-Band TCal values updated
The default TCal values used for standard calibration have been updated for the Ku-Band receiver.
Read more [6]
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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.
Read more [7]
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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.
Read more [8]
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FastX Upgrade
We encourage all observers to test the new installation prior to your observations.
Read more [9]