01 April 1969 The ATM would be a manned solar observatory making measurements of the Sun by telescopes and instruments above the Earth's atmosphere.
(The ATM; would be; a manned solar observatory making measurements of the Sun by telescopes and instruments above the Earth's atmosphere) (a manned solar observatory; making; measurements of the Sun)
The ATM a manned solar observatory
would be making
a manned solar observatory making measurements of the Sun by telescopes and instruments above the Earth's atmosphere
measurements of the Sun