Due to the precession of the orbit, the location of the CVZ moves slowly over a period of eight weeks.. 
The work accomplished during sm4 is expected to sin the Telescope fully functioning at least into the year 2014, and jẹ́wọ́ longer.Àwọn àwa fún sáyẹ́ǹsìise oníkókó in the early 1980s, NASA and STScI convened four publicls to Discuss key projects.. 