DASH (satellite)

Last updated

DASH (short for Density And Scale Height) were a pair of 2.5 meter balloon satellites launched in 1963. They were designed to measure air density at very high altitude, but their orbit was significantly affected by solar radiation pressure. [1]

Related Research Articles

Mineral Element or chemical compound that is normally crystalline formed as a result of geological processes

In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.

Grant, Alabama Town in Alabama, United States

Grant is a town in Marshall County, Alabama, United States. As of the 2010 census, the population of Grant was 896; it is included in the Huntsville-Decatur Combined Statistical Area. The town was incorporated on November 15, 1945 with Delbert Hodges serving as the first mayor.

Guntersville, Alabama City in Alabama, United States

Guntersville is a city and the county seat of Marshall County, Alabama, United States. At the 2010 census, the population of the city was 8,197. Guntersville is located in a HUBZone as identified by the U.S. Small Business Administration (SBA).

Dasher, Georgia Town in Georgia, United States

Dasher is a town in Lowndes County, Georgia, United States. The population was 912 at the 2010 census, up from 834 at the 2000 census.

Wagener, South Carolina Town in South Carolina

Wagener is a town in Aiken County, South Carolina, United States. The population was 797 at the 2010 census. It is part of the Augusta, Georgia metropolitan area.

Gunter, Texas City in Texas, United States

Gunter is a city in the southwestern corner of Grayson County, Texas, United States. The population was 1,498 at the 2010 census, up from 1,230 at the 2000 census. It is part of the Sherman–Denison Metropolitan Statistical Area.

Roaring Springs, Texas Town in Texas, United States

Roaring Springs is a town in Motley County, Texas, United States. The population was 265 at the 2000 census.

Venera 3 Soviet space probe

Venera 3 was a Venera program space probe that was built and launched by the Soviet Union to explore the surface of Venus. It was launched on 16 November 1965 at 04:19 UTC from Baikonur, Kazakhstan, USSR. The probe comprised an entry probe, designed to enter the Venus atmosphere and parachute to the surface, and a carrier/flyby spacecraft, which carried the entry probe to Venus and also served as a communications relay for the entry probe.

De Havilland Canada Dash 8 Regional turboprop airliner family by De Havilland Canada, formerly Bombardier

The De Havilland Canada DHC-8, commonly known as the Dash 8, is a series of turboprop-powered regional airliners, introduced by de Havilland Canada (DHC) in 1984. DHC was later bought by Boeing in 1988, then by Bombardier in 1992; then by Longview Aviation Capital in 2019, reviving the de Havilland Canada brand. Powered by two Pratt & Whitney Canada PW100s, it was developed from the Dash 7 with improved cruise performance and lower operational costs, but without STOL performance. Three sizes were offered: initially the 37–40 seat -100 until 2005 and the more powerful -200 from 1995, the stretched 50–56 seats -300 from 1989, both until 2009, and the 68–90 seats -400 from 1999, still in production. The QSeries are post-1997 variants fitted with active noise control systems.

Contact Air Flugdienst was a German regional airline from Filderstadt. With flight operations based at Stuttgart Airport, it operated scheduled passenger flights under the Lufthansa Regional brand.

The DASH diet is a dietary pattern promoted by the U.S.-based National Heart, Lung, and Blood Institute to prevent and control hypertension. The DASH diet is rich in fruits, vegetables, whole grains, and low-fat dairy foods. It includes meat, fish, poultry, nuts, and beans, and is limited in sugar-sweetened foods and beverages, red meat, and added fats. In addition to its effect on blood pressure, it is designed to be a well-balanced approach to eating for the general public. DASH is recommended by the United States Department of Agriculture (USDA) as a healthy eating plan. The DASH diet is one of three healthy diets recommended in the 2015–2020 US Dietary Guidelines, which also include the Mediterranean diet and a vegetarian diet. The AHA considers the DASH diet "specific and well-documented across age, sex and ethnically diverse groups."

Comparison of orbital launch systems

This comparison of orbital launch systems lists the attributes of all individual rocket configurations designed to reach orbit. A first list contains rockets that are currently operational or in development; a second list includes all retired rockets. For the simple list of all conventional launcher families, see: Comparison of orbital launchers families. For the list of predominantly solid-fueled orbital launch systems, see: Comparison of solid-fueled orbital launch systems.

The dash is a punctuation mark consisting of a long horizontal line. It is similar in appearance to the hyphen and minus sign but is longer and sometimes higher from the baseline. The most common versions are the en dash, longer than the hyphen; the em dash, longer than the en dash; and the horizontal bar, whose length varies across typefaces but tends to be between those of the en and em dashes.

Orba, also known as X-2, was intended to be the first satellite launched by a British rocket. It was launched at 00:34 GMT on 2 September 1970, atop a Black Arrow rocket from Launch Area 5B at Woomera, but failed to reach orbit after the second stage of the carrier rocket shut down 13 seconds early. Orba was built from spare parts due to funding restrictions, and was to have been used to measure upper atmosphere density by monitoring the decay of its orbit.

Kosmos 261, also known as DS-U2-GK No.1, was a Soviet satellite which was launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It was a 347-kilogram (765 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the density of air in the upper atmosphere, and investigate aurorae. Kosmos 261 set the way for the Intercosmos Program. Hungary, Poland, Romania, Czechoslovakia, DDR and Bulgaria were the six Soviet Bloc countries that collaborated in the experiments on board the satellite.

Kosmos 348, also known as DS-U2-GK No.2, was a Soviet satellite which was launched in 1970 as part of the Dnepropetrovsk Sputnik programme. It was a 357-kilogram (787 lb) spacecraft, which was built by the Yuzhnoye Design Bureau, and was used to study the density of air in the upper atmosphere, and investigate aurorae.

Explorer 9 American meteorological research satellite launched in 1961

Explorer 9, known as S-56A before launch, was an American satellite which was launched in 1961 to study the density and composition of the upper thermosphere and lower exosphere. It was a reflight of the failed S-56 mission, and consisted of a 7 kg (15 lb), 3.66 m (12.0 ft) balloon which was deployed into a medium Earth orbit. The mission was conducted by NASA's Langley Research Center.

USA-221, also known as FalconSat-5, is an American military minisatellite, which was launched in 2010. The fifth FalconSat spacecraft to be launched, it carries four technology development and ionospheric research experiments. The satellite was constructed and is operated by the United States Air Force Academy.

Louis Braille's original publication, Procedure for Writing Words, Music, and Plainsong in Dots (1829), credits Barbier's night writing as being the basis for the braille script. It differed in a fundamental way from modern braille: It contained nine decades (series) of characters rather than the modern five, utilizing dashes as well as dots. Braille recognized, however, that the dashes were problematic, being difficult to distinguish from the dots in practice, and those characters were abandoned in the second edition of the book.

LaDarius Gunter American football cornerback

LaDarius Markeis Gunter Sr. is an American football cornerback who is currently a free agent. He played college football at the University of Miami, and was signed by the Green Bay Packers of the National Football League (NFL) as an undrafted free agent in 2015. Gunter also spent time in the NFL with the Carolina Panthers, the Orlando Apollos of the Alliance of American Football (AAF), and the DC Defenders of the XFL.

References

  1. Krebs, Gunter D. "DASH 1, 2". Gunter's Space Page. Retrieved 2 November 2021.