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GBT Observer Alert
GBT at Full azimuth Slew Rate
The GBT has returned to the regular full azimuth slew rate.
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GBT Observer Alert
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!
Current Call for Proposals
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The Green Bank Observatory (GBO) Call for Proposals for the Semester 2025A
closed on Wednesday, 31 July at 21:00 UTC.Please come back here in early January 2025 for the Semester 2025B Proposal Call information.
Additional Information
Useful Resources
Previous Calls for Proposals
In the posts below you will find information on previous proposal calls (in reverse-chronological order) including for each semester the proposal call results and a list of the science program.