Open Access

Table 3

Mass estimates for various telescope components and equipment.

Structure or Component Mass (tons)
Telescope structure total 4400
Azimuthal structure (w/o instr.) 1390
Elevation rotating structure (incl. ballast) 3000
Main reflector, backup structure, subreflector 1080
AZ Wheel load ≤200
Nasmyth-mounted instruments 2 × 30
Cassegrain-mounted instruments 4 × 10

Notes. The instrument mass estimates listed are the maxima allowed for those mount points.

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