balloon satellite 

Statements about this table:
echo 2 have the most mass of the satellite
the qi qiu weixing 1 and 2 be launch the same day
the myler balloon have the smallest diameter
the echo 1 be launch first
satellite
launch date (utc)
decay
mass (kg)
diameter (m)
nssdc id
nation
usage
echo 1
1960 - 08 - 12 09:36:00
1968 - 05 - 24
180
30.48
1960 - 009a
us
pcr , ado , spc , tri
explorer 9
1961 - 02 - 16 13:12:00
1964 - 04 - 09
36
3.66
1961 - 004a
us
ado
explorer 19 (ad - a)
1963 - 12 - 19 18:43:00
1981 - 10 - 05
7.7
3.66
1963 - 053a
us
ado
echo 2
1964 - 01 - 25 13:55:00
1969 - 06 - 07
256
41
1964 - 004a
us
pcr , tri
satellite
launch date (utc)
decay
mass (kg)
diameter (m)
nssdc id
nation
usage
explorer 24 (ad - b)
1964 - 11 - 21 17:17:00
1968 - 10 - 18
8.6
3.6
1964 - 076a
us
ado
pageos 1
1966 - 06 - 24 00:14:00
1975 - 07 - 12
56.7
30.48
1966 - 056a
us
tri
explorer 39 (ad - c)
1968 - 08 - 08 20:12:00
1981 - 06 - 22
9.4
3.6
1968 - 066a
us
ado
satellite
launch date (utc)
decay
mass (kg)
diameter (m)
nssdc id
nation
usage
mylar balloon
1971 - 08 - 07 00:11:00
1981 - 09 - 01
0.8
2.13
1971 - 067f
us
ado
qi qiu weixing 1
1990 - 09 - 03 00:53:00
1991 - 03 - 11
4
3
1990 - 081b
prc
ado
qi qiu weixing 2
1990 - 09 - 03 00:53:00
1991 - 07 - 24
4
2.5
1990 - 081c
prc
ado