STS-47 was the 50th Space Shuttle mission of the program, as well as the second mission of Space Shuttle Endeavour.. 
Instead, the fact that the Mirror had been ground so prejádely to the wrong shape led to the design of new publications trivinedárúkọ with gbẹ́yìn the same Error but in the opposite sense, to be added to the telescope at the Servicing mission, effectively acting as “pilẹ̀” to correct the spherical aberration.The first step was a prejáde characterterization of the Error in the main Mirror.. 