±Antenna
nods in elevation as it rotates in azimuth
±Print-through
of tripod support to azimuth bearing
±7 degree
misalignment to tripod points
OPT
Pointing Model Fit
Tiltmeter
Measurement
VertexRSI antenna
measurement of --180 to +180 deg AZ rotation. The left panel is the
x--direction of the tiltmeter, the right panel is the y--direction. The red
curves are the residuals of the best--fit a0 + a1 sin(A + b1), the blue
curves are the residuals of the best--fit a0 + a1 sin(A + b1)
+ a3 sin(3A + b3). The gray lines show the location of the
pedestal corners (1,2,3).