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The time it takes the telescope to slew from one place to another on the sky is determined by two upper limits, one is the maximum angular acceleration (about 3 deg/s^2) and the other is the maximum angular rate (3 deg/s). 

Coordinates and Timeframes. 

There are three natural timescales involved: a day, a month and a year. 

Relationship between RA, DEC, HA and zenith angle (from Zombeck)

HA=LST-RA

alt=altitude

az=azimuth, from W towards S

lat=latitude

cos(alt)sin(az)=cos(dec)sin(HA)

cos(alt)cos(az)=-sin(dec)cos(lat)+cos(dec)cos(HA)sin(lat)

sin(alt)=sin(dec)sin(lat) + cos(dec) cos(alt) cos(lat)

 

Merit Function Ingredients. 

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