Directory of U.S. Military Rockets and Missiles|
Appendix 3: Space Vehicles
Copyright © 2003-2007 Jos Heyman|
(HTML formatting by Andreas Parsch)
The designation WS-1A refers to the Block 5D-2 series of the Defense Meteorological Satellite Programme (DMSP) which were based on the earlier Block 5D-1 series of meteorological satellite. The Block 5D-2 satellites, which had a mass on 770 kg, were built by General Electric.
|Image: Lockheed Martin|
The instrumentation on board of the satellites varies from satellite to satellite and consisted of the following instruments:
|DMSP F-6||OLS, SSJ/4, SSB/A, SSI/E|
|DMSP F-7||OLS, SSJ/4, SSM/T, SSM, SSI/E, SSJ, SSB/S|
|DMSP F-8||OLS, SSJ/4, SSI/ES, SSB/X. SSM/T|
|DMSP F-9||OLS, SSJ/4, SSM/I, SSI/ES, SSB/X, SSM/T, SSM(?), SSH/2(?)|
|DMSP F-10||OLS, SSJ/4, SSM/I, SSI/ES, SSB/X, SSM/T|
|DMSP F-11||OLS, SSJ/4, SSM/I, SSI/ES, SSB/X, SSM/T, SSM(?)|
|DMSP F-12||OLS, SSJ/4, SSM/I, SSI/ES, SSB/X, SSM/T, SSM(?)|
|DMSP F-13||OLS, SSJ/4, SSM/I, SSI/ES, SSB/X, SSM/T, SSM(?)|
|DMSP F-14||OLS, SSJ/4, SSM/I, SSI/ES, SSB/X, SSM/T, SSM(?)|
|Instruments for each individual DMSP F satellite|
Like the earlier DMSP satellites, they were placed in pairs in sun-synchronous orbits in such a manner that one satellite crossed the equator at 6.30 local time followed by the other satellite at noon.
|Photo: Author's collection|
DMSP F-15 (1999 067A)
Commencing with DMSP F-15 the satellites were fitted with larger sensors payloads and were also known as the Block 5D-3 series which carried the designation WS-1B. The instruments carried were:
Four satellites remain in storage for future launch.
|DMSP F-6||1982 118A||21-Dec-1982||Also known as Ops-9845|
|DMSP F-7||1983 113A||18-Nov-1983||Also known as Ops-1294|
|DMSP F-8||1987 053A||20-Jun-1987||Also known as USA-26|
|DMSP F-9||1988 006A||3-Feb-1988||Also known as USA-29|
|DMSP F-10||1990 105A||1-Dec-1990||Also known as USA-68|
|DMSP F-11||1991 082A||28-Nov-1991||Also known as USA-73|
|DMSP F-12||1994 057A||29-Aug-1994||Also known as USA-106|
|DMSP F-13||1995 015A||24-Mar-1995||Also known as USA-109|
|DMSP F-14||1997 012A||4-Apr-1997||Also known as USA-131|
|DMSP F-15||1999 067A||12-Dec-1999||Also known as USA-147|
|DMSP F-16||2003 048A||18-Oct-2003||Also known as USA-172|
|DMSP F-17||2006 050A||4-Nov-2006||Also known as USA-191|
Launch dates of the Block 5D-2/3 series
The first steps towards developing a series of meteorological satellites under the designation of Defense Meteorological Satellite Program (DMSP) where taken in 1962 when the RCA Corporation developed a number of satellites identified in the P35 series which were grouped in generations known as 'Blocks'. Of these Blocks 1 and 2 must be considered as experimental satellites. Over the time period during which the satellites were launched the instrumentation on board of the satellites was progressively improved. Whereas early satellites, such as those in the Block 4A series, were equipped with two vidicon cameras, later satellites utilised line scan cameras operating in the visual and infra-red bands of the spectrum. Other instruments that were carried included temperature sounders and data collection and transmission systems. All the successful satellites in the P35 series were placed in a sun-synchronous orbit.
The Block 1 military meteorological satellites were developed by RCA. The mass was 91 kg. The satellites were fitted with a single camera system. The entire programme was known as Program II, Program 694BH and Program 417.
|Image: Author's collection|
|DMSP Block 1|
P35-2 (1962 αο1)
|P35-1||---||23-May-1962||---||Also known as Ops-1201 and FTV-3501; failed to orbit|
|P35-2||1962 αο1||23-Aug-1962||Also known as Ops-3502 and FTV-3502|
|P35-3||1963 005A||19-Feb-1963||26-Dec-1979||Also known as Ops-0240|
|P35-4||---||26-Apr-1963||---||Also known as Ops-1298; failed to orbit|
|P35-5||---||27-Sep-1963||---||Also known as Ops-1610; failed to orbit|
Launch dates of the Block 1 series
The RCA Block 2 military meteorological satellites were a development of the Block 1 series. The series was also known as AFP-43 and the satellites had a mass of 130 kg. They were fitted with two camera systems.
|P35-6||1964 002B||19-Jan-1964||Also known as Ops-3367|
|P35-8||1964 031A||18-Jun-1964||Also known as Ops-4467|
Launch dates of the Block 2 series
The RCA Block 3 series was based on the RCA Block 2 series. The satellites had a mass of 150 kg.
|P35-10||1965 003A||19-Jan-1965||13-Jul-1979||Also known as Ops-7040|
|P35-11||1965 021A||18-Mar-1965||31-Dec-1989||Also known as Ops-7353|
|P35-12||1965 038A||20-May-1965||Also known as Ops-8386|
|P35-13||1965 072A||9-Sep-1965||Also known as Ops-8068|
|P35-14||---||6-Jan-1966||---||Also known as Ops-2394; failed to orbit|
|P35-15||1966 026A||31-Mar-1966||Also known as Ops-0340|
Launch dates of the Block 3 series
The RCA Block 4A satellites had a mass of 125 kg. The satellites were equipped with two vidicon cameras.
|P35-16||1966 082A||16-Sep-1966||Also known as Ops-6026|
|P35-17||1967 010A||8-Feb-1967||Also known as Ops-6073|
|P35-18||1967 080A||23-Aug-1967||Also known as Ops-7202|
|P35-19||1967 096A||11-Oct-1967||Also known as Ops-1264|
Launch dates of the Block 4A series
The RCA Block 4B satellites had a mass of 195 kg.
|P35-20||1968 042A||23-May-1968||Also known as Ops-7869|
|P35-21||1968 092A||23-Oct-1968||Also known as Ops-4078|
|P35-22||1969 062A||22-Jul-1969||Also known as Ops-1127|
Launch dates of the Block 4B series
The Block 5A satellites had a mass of 195 kg.
|P35-23||1970 012A||11-Feb-1970||Also known as Ops-0054 and DAPP 1524|
|P35-24||1970 070A||3-Sep-1970||Also known as Ops-0203 and DAPP 2525|
|P35-25||1971 012A||17-Feb-1971||Also known as Ops-5268 and DAPP 3526|
Launch dates of the Block 5A series
The Block 5B series satellites had a mass of 195 kg. The Block 5C satellites commenced with DMSP-3.
|Photo: Author's collection|
|DMSP Block 5C|
DMSP-3 (1972 089A)
|DMSP-1||1971 087A||14-Oct-1971||Also known as Ops-4311 and P35-26|
|DMSP-2||1972 018A||24-Mar-1972||Also known as Ops-5058|
|DMSP-3||1972 089A||9-Nov-1972||Also known as Ops-7323|
|DMSP-4||1973 054A||17-Aug-1973||Also known as Ops-8364|
|DMSP-5||1974 015A||16-Mar-1974||Also known as Ops-8579|
|DMSP-6||1974 063A||9-Aug-1974||Also known as Ops-6983|
|DMSP-7||1975 043A||24-May-1975||Also known as Ops-6226|
|DMSP-8||1976 016A||19-Feb-1976||19-Feb-1976||Also known as Ops-5140; failed to achieve correct orbit|
Launch dates of the Block 5B/C series
The Block 5D-1 sub-series of meteorological satellites is commonly referred to as Advanced Meteorological Satellite (AMS). The satellites, which at first had a mass of 450 kg (for AMS 1 and AMS 2) and later 513 kg (for AMS 3, AMS 4 and AMS 5), carried instrumentation which varied from satellite to satellite and included the following instruments:
The satellites were placed in pairs in sun synchronous orbits in such a manner that one satellite crossed the equator at noon local time followed by the other satellite at 6.30 pm. Real time read out from the DMSP satellites was standard, allowing the military commanders in the field to have the necessary meteorological information instantaneously.
|Photo: Author's collection|
|DMSP Block 5D-1|
AMS-1 (1976 091A)
|AMS-1||1976 091A||11-Sep-1976||Also known as Ops-5721 and DMSP F-1|
|AMS-2||1977 044A||5-Jun-1977||Also known as Ops-5644 and DMSP F-2|
|AMS-3||1978 042A||1-May-1978||Also known as Ops-6182 and DMSP F-3|
|AMS-4||1979 050A||6-Jun-1979||Also known as Ops-5390 and DMSP F-4|
|AMS-5||---||14-Jul-1980||---||Failed to orbit; also known as DMSP F-5|
Launch dates of the Block 5D-1 series
Back to Directory of U.S. Military Rockets and Missiles, Appendix 3