hydra, nossy, and other systems

• hydra (​http://hydra.as.utexas.edu) is a public-facing computer in Austin and provides PI access to programs, allowing:
  • PIs to submit targets into their program
  • PIs to edit status of targets in their program
  • PIs to display which targets have been observed from their program
    
  Hydra also contains our documentation for PIs: ​https://hydra.as.utexas.edu/?a=help&toc_X=1

• nossy (​http://nossy or ​http://192.168.66.95/noss/) is a computer that lives inside the HET firewall and runs a lot of our night operations including the queue and night reports, allowing:
  • RAs to accept/reject new targets and allocations into the queue
  • RAs to use interface to see targets/programs/changes/etc (​http://nossy/noss/RA/interface)
  • RAs to access the RA Night Report (​http://nossy/noss/RA/NightReport)
  • RAs to access the OPS webpage (​http://nossy/noss/RA/OPS)
  • RAs to access htopx (​http://nossy/noss/htopx3
  • many other Night Operations Software Systems

• depot (​http://depot.het.astronomy.utexas.edu or ​http://192.168.66.63/) is a computer that lives inside the HET firewall and is an exact copy of everything on nossy.

The data content on nossy is the official version of the observing queue, and is the version that we interact with in htopx/NightReport/etc. For security reasons nossy is available only inside the HET firewall. All data content is replicated to depot and then replicated to hydra for external access by PIs and other users. Any changes made on nossy will propagate through depot to hydra almost instantaneously. This synchronization process is called replication.