Encyclopedia Astronautica
S-55


American earth micrometeoroid satellite. 4 launches, 1961.06.30 (Explorer (13) S 55) to 1964.11.06 (Explorer 23). Micrometeoroid research.

First Launch: 1961.06.30.
Last Launch: 1964.11.06.
Number: 4 .

More... - Chronology...


Associated Countries
See also
  • Scout Solid-fuel, light payload, lower-cost launch vehicle developed by the Air Force and NASA in the late 1950's and used in a variety of configurations over thirty years. Launched from Cape Canaveral, Vandenberg, Wallops Island, and from Italy's equatorial San Marco platform off Kenya. Italy studied but did not develop subsequent upgraded versions. More...

Associated Launch Vehicles
  • Scout American all-solid orbital launch vehicle. Solid-fuel, light payload, lower-cost launch vehicle developed by the Air Force and NASA in the late 1950's and used in a variety of configurations over thirty years. Launched from Cape Canaveral, Vandenberg, Wallops Island, and from Italy's equatorial San Marco platform off Kenya. Italy studied but did not develop subsequent upgraded versions. More...
  • Scout X-1 American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 1B + 1 x Castor + 1 x Antares + 1 x Altair More...
  • Scout X-3 American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 2A + 1 x Castor + 1 x Antares 2 + 1 x Altair More...
  • Scout X-4 American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 2A + 1 x Castor + 1 x Antares 2 + 1 x Altair 2 More...

Associated Manufacturers and Agencies
  • NASA American agency overseeing development of rockets and spacecraft. National Aeronautics and Space Administration, USA, USA. More...

Associated Programs
  • Explorer Series of satellites launched by Jet Propulsion Laboratory for the exploration of the space environment (micrometeoroids, charged particles, radiation, etc) from both earth orbital and heliocentric orbital locations. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • Bramscher, Robert G, "A Survey of Launch Vehicle Failures", Spaceflight, 1980, Volume 22, page 351.
  • NASA Report, Explorer XVI Micrometeoroid Satellite , Web Address when accessed: here.
  • NASA Report, The Explorer XXIII Micrometeoroid Satellite- Description and Preliminary Results, November 6, 1964 - February 15, 1965, Web Address when accessed: here.
  • NASA Report, Thermal Design of Explorer XIII Micrometeoroid Satellite , Web Address when accessed: here.
  • NASA Report, Micrometeoroid Satellite /Explorer XVI/ Stainless-Steel Penetration Rate Experiment, Web Address when accessed: here.
  • NASA Report, Protecting Explorer XVI Solar Cells, Web Address when accessed: here.
  • NASA Report, Micrometeoroid Satellite Explorer XIII , Web Address when accessed: here.

Associated Launch Sites
  • Wallops Island Small NASA launch site for sounding rocket launches and occasional Scout launches to orbit. Air launches are conducted from the Drop Zone Wallops Island, 37.00 N 72.0 W. With the last orbital launch in 1985 and the decline in sounding rocket launches, Wallops fell into near-disuse as a launch center. Its fortunes revised with the establishment of Mid-Atlantic Regional Spaceport in 2005 and orbital launches resumed in 2010. More...

S-55 Chronology


1961 June 30 - . 17:09 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3. LV Family: Scout. Launch Vehicle: Scout X-1. LV Configuration: Scout X-1 ST-5. FAILURE: Third stage did not ignite, and the vehicle was destroyed.. Failed Stage: 3.
  • Explorer (13) S 55 - . Payload: S-55. Mass: 84 kg (185 lb). Nation: USA. Agency: NASA. Program: Explorer. Class: Earth. Type: Micrometeoroid satellite. Spacecraft: S-55. Decay Date: 1961-06-30 . COSPAR: F610630A. Apogee: 172 km (106 mi). Summary: Micrometeorite counter satellite (S-55)..

1961 August 25 - . 18:29 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3. LV Family: Scout. Launch Vehicle: Scout X-1. LV Configuration: Scout X-1 ST-6. FAILURE: Partial Failure.. Failed Stage: 4.
  • Explorer 13 - . Payload: S-55A. Mass: 86 kg (189 lb). Nation: USA. Agency: NASA. Program: Explorer. Class: Earth. Type: Micrometeoroid satellite. Spacecraft: S-55. Decay Date: 1961-08-28 . USAF Sat Cat: 180 . COSPAR: 1961-Chi-1. Apogee: 1,164 km (723 mi). Perigee: 125 km (77 mi). Inclination: 37.7000 deg. Period: 97.50 min. Summary: Useless orbit; micrometeoroid research. Partial Failure..

1962 December 16 - . 14:33 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3. LV Family: Scout. Launch Vehicle: Scout X-3. LV Configuration: Scout X-3 S115.
  • Explorer 16 - . Payload: S-55B. Mass: 100 kg (220 lb). Nation: USA. Agency: NASA. Program: Explorer. Class: Earth. Type: Micrometeoroid satellite. Spacecraft: S-55. USAF Sat Cat: 506 . COSPAR: 1962-B-Chi-1. Apogee: 1,159 km (720 mi). Perigee: 744 km (462 mi). Inclination: 52.0000 deg. Period: 104.10 min. Summary: Micrometeoroid data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

1964 November 6 - . 12:02 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3. LV Family: Scout. Launch Vehicle: Scout X-4. LV Configuration: Scout X-4 S133R.
  • Explorer 23 - . Payload: S-55C. Mass: 134 kg (295 lb). Nation: USA. Agency: NASA Langley. Program: Explorer. Class: Earth. Type: Micrometeoroid satellite. Spacecraft: S-55. Decay Date: 1983-06-29 . USAF Sat Cat: 924 . COSPAR: 1964-074A. Apogee: 980 km (600 mi). Perigee: 463 km (287 mi). Inclination: 51.9000 deg. Period: 99.20 min. Summary: Micrometeoroid data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .

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