Two major pieces of debris were associated with the satellite, which decayed from orbit on 1 and 7 December 1971.

On 30 June 1968, it decayed from orbit and reentered the atmosphere.

On 24 March 1968, it decayed from orbit and reentered the atmosphere.

On 5 May 1969, it decayed from orbit and reentered the atmosphere.

On 22 June 1970, it decayed from orbit and reentered the atmosphere.

Explorer 3 decayed from orbit on June 27, 1958, after 93 days of operation.

The spacecraft decayed from orbit after 1,325 days on November 24, 1966.

The satellite decayed from orbit three weeks after launch, on 6 July 2011.

Following this, it decayed from orbit on 30 November 1977.

The spacecraft decayed from orbit after 454 days on October 23, 1959.