Table:
0
A
B
C
D
E
1
Name
Launched
Vehicle
Ceased operation
Notes
2
Injun 1
June 29, 1961
Thor-Able
March 6, 1963
Failed to separate from Solrad 3; still in orbit
3
Injun 2
January 24, 1962
Thor-Able
failed at launch
Upper stage produced insufficient thrust
4
Injun 3
December 12, 1962
Thor-Agena
August 25, 1968
Orbit decay and re-entry on August 25, 1968
5
Injun 4
November 21, 1964
Scout X-4
December 1966
still in orbit
6
Injun 5
August 8, 1968
Scout X-4
June 1971
still in orbit[ citation needed ]
7
Injun 6
June 3, 1974
Scout X-4
April 28, 1978
main article: Explorer 52

Questions and formulas:
Question: Which vehicle failed at launch?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="failed at launch"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="failed at launch"),3))
Level: medium
Question: What are the notes regarding the scout x-4 vehicle which ceased operation in June 1971?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="scout x-4")*(D1="june 1971")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,(C2:C7="scout x-4")*(D2:D7="june 1971")),5))
Level: medium
Question: What was the ceased operation with a launch date of August 8, 1968?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="august 8, 1968"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="august 8, 1968"),4))
Level: medium
Question: What was the ceased operation that launched June 29, 1961?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="june 29, 1961"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="june 29, 1961"),4))
Level: medium