10m Caltech Submillimeter Observatory
McDonald has an agreement with the California Institute of Technology
for 10% of the nights on the 10m CSO submillimeter telescope at Mauna Kea, Hawaii.
South African Large Telescope (SALT)
Based on the design of the HET, SALT was inaugurated November 10, 2005, and is undergoing Performance Verification.
The University of Texas will receive 5% of the telescope's observing time.
0.9m Telescope
The 0.9m telescope is currently used for public educational programs and special viewing events.
0.45m ROTSE Telescope /IIIb
McDonald hosts one of the four globally networked Robotic Optical Transient Search Experiment telescopes, and
recieves 30% of the telescope's time.
1.2m MONET Telescope
McDonald hosts one of the two robotically controlled telescopes of the MONET project. The twin is located
in South Africa. Installation in West Texas began in November 2005. The Observatory will likely receive a 10-15% share
of each instrument.