Misplaced Pages

#861138

36-671: Coordinates : 42°24′36.67″N 71°4′9.44″W  /  42.4101861°N 71.0692889°W  / 42.4101861; -71.0692889 General Electric Everett Plant [REDACTED] Built 1941 Location Everett, Massachusetts Coordinates 42°24′36.67″N 71°4′9.44″W  /  42.4101861°N 71.0692889°W  / 42.4101861; -71.0692889 Products General Electric CF6 General Electric CFM56 General Electric T700 General Electric F404 General Electric F101 General Electric Everett Plant , formerly known as Air Force Plant 28 ,

72-532: A prime meridian at the westernmost known land, designated the Fortunate Isles , off the coast of western Africa around the Canary or Cape Verde Islands , and measured north or south of the island of Rhodes off Asia Minor . Ptolemy credited him with the full adoption of longitude and latitude, rather than measuring latitude in terms of the length of the midsummer day. Ptolemy's 2nd-century Geography used

108-646: A little before 1300; the text was translated into Latin at Florence by Jacopo d'Angelo around 1407. In 1884, the United States hosted the International Meridian Conference , attended by representatives from twenty-five nations. Twenty-two of them agreed to adopt the longitude of the Royal Observatory in Greenwich , England as the zero-reference line. The Dominican Republic voted against

144-416: A location often facetiously called Null Island . In order to use the theoretical definitions of latitude, longitude, and height to precisely measure actual locations on the physical earth, a geodetic datum must be used. A horizonal datum is used to precisely measure latitude and longitude, while a vertical datum is used to measure elevation or altitude. Both types of datum bind a mathematical model of

180-535: A longitudinal degree is 111.3 km. At 30° a longitudinal second is 26.76 m, at Greenwich (51°28′38″N) 19.22 m, and at 60° it is 15.42 m. On the WGS   84 spheroid, the length in meters of a degree of latitude at latitude ϕ (that is, the number of meters you would have to travel along a north–south line to move 1 degree in latitude, when at latitude ϕ ), is about The returned measure of meters per degree latitude varies continuously with latitude. Similarly,

216-670: A national cartographical organization include the North American Datum , the European ED50 , and the British OSGB36 . Given a location, the datum provides the latitude ϕ {\displaystyle \phi } and longitude λ {\displaystyle \lambda } . In the United Kingdom there are three common latitude, longitude, and height systems in use. WGS   84 differs at Greenwich from

252-841: A simple translation may be sufficient. Datums may be global, meaning that they represent the whole Earth, or they may be local, meaning that they represent an ellipsoid best-fit to only a portion of the Earth. Examples of global datums include World Geodetic System (WGS   84, also known as EPSG:4326 ), the default datum used for the Global Positioning System , and the International Terrestrial Reference System and Frame (ITRF), used for estimating continental drift and crustal deformation . The distance to Earth's center can be used both for very deep positions and for positions in space. Local datums chosen by

288-500: A year, or 10 m in a century. A weather system high-pressure area can cause a sinking of 5 mm . Scandinavia is rising by 1 cm a year as a result of the melting of the ice sheets of the last ice age , but neighboring Scotland is rising by only 0.2 cm . These changes are insignificant if a local datum is used, but are statistically significant if a global datum is used. On the GRS   80 or WGS   84 spheroid at sea level at

324-583: Is where Earth's equatorial radius a {\displaystyle a} equals 6,378,137 m and tan ⁡ β = b a tan ⁡ ϕ {\displaystyle \textstyle {\tan \beta ={\frac {b}{a}}\tan \phi }\,\!} ; for the GRS   80 and WGS   84 spheroids, b a = 0.99664719 {\textstyle {\tfrac {b}{a}}=0.99664719} . ( β {\displaystyle \textstyle {\beta }\,\!}

360-418: Is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude . It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system , the geographic coordinate system

396-707: Is known as the reduced (or parametric) latitude ). Aside from rounding, this is the exact distance along a parallel of latitude; getting the distance along the shortest route will be more work, but those two distances are always within 0.6 m of each other if the two points are one degree of longitude apart. Like any series of multiple-digit numbers, latitude-longitude pairs can be challenging to communicate and remember. Therefore, alternative schemes have been developed for encoding GCS coordinates into alphanumeric strings or words: These are not distinct coordinate systems, only alternative methods for expressing latitude and longitude measurements. SES Americom SES Americom

SECTION 10

#1732868715862

432-540: Is not cartesian because the measurements are angles and are not on a planar surface. A full GCS specification, such as those listed in the EPSG and ISO 19111 standards, also includes a choice of geodetic datum (including an Earth ellipsoid ), as different datums will yield different latitude and longitude values for the same location. The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene , who composed his now-lost Geography at

468-731: Is the angle east or west of a reference meridian to another meridian that passes through that point. All meridians are halves of great ellipses (often called great circles ), which converge at the North and South Poles. The meridian of the British Royal Observatory in Greenwich , in southeast London, England, is the international prime meridian , although some organizations—such as the French Institut national de l'information géographique et forestière —continue to use other meridians for internal purposes. The prime meridian determines

504-405: Is ultimately calculated from latitude and longitude, it is crucial that they clearly state the datum on which they are based. For example, a UTM coordinate based on WGS84 will be different than a UTM coordinate based on NAD27 for the same location. Converting coordinates from one datum to another requires a datum transformation such as a Helmert transformation , although in certain situations

540-489: The Library of Alexandria in the 3rd century BC. A century later, Hipparchus of Nicaea improved on this system by determining latitude from stellar measurements rather than solar altitude and determining longitude by timings of lunar eclipses , rather than dead reckoning . In the 1st or 2nd century, Marinus of Tyre compiled an extensive gazetteer and mathematically plotted world map using coordinates measured east from

576-532: The satellite television services from 19.2° East , serving Germany , the United Kingdom and Republic of Ireland . After the acquisition of GE Americom by SES, all the satellites previously named with the GE-# prefix were renamed AMC-# (i.e., GE-1 renamed AMC-1, and so on). The President and CEO of the new SES Americom was Dean Olmstead. He left the company in 2004 and was succeeded by Edward Horowitz. SES Americom

612-451: The Americom unit to GE American Communications (GE Americom). From 1996 new satellites were named in the GE-# series, i.e. GE-1 in 1996, GE-2 in 1997 etc. In November 2001, GE sold its GE Americom unit to SES for US$ 5 billion in cash and stock. As a result of the sale, GE Americom was renamed SES Americom and SES Global was formed as the parent company. SES's existing operations were moved to

648-502: The Equator, one latitudinal second measures 30.715 m , one latitudinal minute is 1843 m and one latitudinal degree is 110.6 km. The circles of longitude, meridians, meet at the geographical poles, with the west–east width of a second naturally decreasing as latitude increases. On the Equator at sea level, one longitudinal second measures 30.92 m, a longitudinal minute is 1855 m and

684-798: The United States Air Force Buildings and structures in Everett, Massachusetts General Electric Superfund sites in Massachusetts Demolished buildings and structures in Massachusetts Hidden categories: Pages using gadget WikiMiniAtlas Infobox mapframe without OSM relation ID on Wikidata Coordinates on Wikidata Pages using the Kartographer extension Geographic coordinate system A geographic coordinate system ( GCS )

720-562: The United States, like American Broadcasting Company (ABC), NBC , and CBS , to distribute their programming to all of their local affiliate stations. Satcom 1 was so widely used because it had twice the communications capacity of the competing Westar 1 (24 transponders as opposed to Westar 1's 12), which resulted in lower transponder usage costs. 14 more (increasingly sophisticated) Satcom satellites would enter service from 1976 to 1992. In 1986, General Electric acquired RCA and renamed

756-460: The far western Aleutian Islands . The combination of these two components specifies the position of any location on the surface of Earth, without consideration of altitude or depth. The visual grid on a map formed by lines of latitude and longitude is known as a graticule . The origin/zero point of this system is located in the Gulf of Guinea about 625 km (390 mi) south of Tema , Ghana ,

SECTION 20

#1732868715862

792-415: The length in meters of a degree of longitude can be calculated as (Those coefficients can be improved, but as they stand the distance they give is correct within a centimeter.) The formulae both return units of meters per degree. An alternative method to estimate the length of a longitudinal degree at latitude ϕ {\displaystyle \phi } is to assume a spherical Earth (to get

828-473: The motion, while France and Brazil abstained. France adopted Greenwich Mean Time in place of local determinations by the Paris Observatory in 1911. The latitude ϕ of a point on Earth's surface is the angle between the equatorial plane and the straight line that passes through that point and through (or close to) the center of the Earth. Lines joining points of the same latitude trace circles on

864-462: The newly created SES Astra subsidiary. SES formerly bought a satellite from failed Direct broadcast satellite (DBS) company Crimson Satellite Associates and GE Americom while still under construction by GE AstroSpace (as Satcom K3 ). Renamed Astra 1B and modified for use as a European direct broadcasting satellite and a part of the Astra DBS constellation, it was launched to add extra capacity to

900-516: The one used on published maps OSGB36 by approximately 112   m. The military system ED50 , used by NATO , differs from about 120   m to 180   m. Points on the Earth's surface move relative to each other due to continental plate motion, subsidence, and diurnal Earth tidal movement caused by the Moon and the Sun. This daily movement can be as much as a meter. Continental movement can be up to 10 cm

936-5594: The original on January 16, 2014 . Retrieved 20 May 2013 . ^ "GE may close plant" . Nashua Telegraph . 22 February 1988 . Retrieved 20 May 2013 . v t e General Electric Successor companies* GE Aerospace (legal successor of GE) GE HealthCare GE Vernova [REDACTED] Former subsidiaries and divisions Australian Guarantee Corporation Canadian General Electric Compagnia Generale di Elettricità Current, powered by GE Electric Bond and Share Company GE Additive GE Aerospace (1960s) GE Americom GE Appliances GE Automation & Controls GE Aviation GE Aviation Systems GE Betz GE Capital GE Capital Aviation Services GE Capital IT Solutions GE Capital Rail Services GE Commercial Finance GE Digital GE Energy GE Equipment Services GE HealthCare GE Home & Business Solutions GE Industrial GE Infrastructure GE Jenbacher GE Lighting GE Measurement & Control GE Oil & Gas GE Power GE Renewable Energy GE Research LM Wind Power GE Security GE Transportation GE Waukesha GE Wind GE Venture Capital GE Ventures GECIS GEIS Genesis Lease Genpact Genworth Financial Montgomery Ward Synchrony Financial Tungsram United Nuclear Corporation Utah Construction Company Whatman Joint ventures/ shareholdings Current** Baker Hughes (30%) CFM International (50%) Engine Alliance (50%) GE Hitachi Nuclear Energy (60%) GE Honda Aero Engines (50%) ProlecGE (49.99%) TBS GB Former Alco-GE (1940–53) NBC (1926–30, 1986–2004) NBCUniversal (2004–13) Penske Truck Leasing (15.5%) Wabtec Products and brands Aircraft engines General Comprehensive Operating System GEnie Locomotives Mazda Reciprocating engines Trivection oven Tungsram People Founders Charles A. Coffin Thomas Edison Edwin J. Houston J. P. Morgan Elihu Thomson Executives Jeff Immelt Jack Welch Bob Wright Outside directors James Cash Jr. John L. Flannery Ann M. Fudge Susan Hockfield Andrea Jung Rochelle Lazarus Sam Nunn Roger Penske Vera Silva Douglas A. Warner III Places and facilities GE Building (30 Rockefeller Plaza) GE Building (570 Lexington Avenue) Nela Park Realty Plot Research Laboratory River Works Specialty Control Plant Switchgear Plant Welch Technology Centre Sponsorship Carousel of Progress (1964–65, 1967–73, 1975–85) Horizons at Epcot (1983–93) Other GE True The General Electric Concert General Electric EdgeLab General Electric Theater General Imaging KGEI Litigation Diamond v. Chakrabarty United States v. General Electric Co. Phoebus cartel Thomson-Houston Electric Company Timeline " We Bring Good Things to Life " * Following corporate split-up from 2023 to 2024 ** Joint ventures before corporate split-up from 2023 to 2024 [REDACTED] GE Aerospace template [REDACTED] Category [REDACTED] Commons v t e Current military installations in Massachusetts Army Camps Camp Edwards Camp Curtis Guild Centers Crosman Army Reserve Center Poncin Army Reserve Center Combat Capabilities Development Command Soldier Center Forts Fort Devens Heliports Camp Edwards Heliport Laboratories Base Camp Integration Laboratory [REDACTED] Joint Bases Joint Base Cape Cod (State designation, not federally recognized) Centers David S. Connolly Armed Forces Reserve Center Westover AFRC Navy Centers Navy Operational Support Center Quincy Air Force Bases Barnes Air National Guard Base Hanscom Air Force Base Otis Air Force Base Westover Air Reserve Base Space Force Stations Cape Cod Space Force Station Coast Guard Air Stations Coast Guard Air Station Cape Cod Bases Boston Cape Cod Depots United States Coast Guard Buoy Depot, South Weymouth Stations Brant Point Cape Cod Canal Chatham Gloucester Menemsha Merrimack River Point Allerton Provincetown Scituate Woods Hole Retrieved from " https://en.wikipedia.org/w/index.php?title=General_Electric_Everett_Plant&oldid=1183330020 " Categories : Plants of

972-434: The plant also was home to metal plating. The plant was closed after General Electric decided to consolidate manufacturing at other plants across the country, including to that in nearby Lynn, where parts from Everett were assembled into engines. References [ edit ] ^ "IRP Phase I Air Force Plants Nos 28+29" (PDF) . HQ Air Force Engineering and Services . June 1984. p. 27. Archived (PDF) from

1008-520: The proper Eastern and Western Hemispheres , although maps often divide these hemispheres further west in order to keep the Old World on a single side. The antipodal meridian of Greenwich is both 180°W and 180°E. This is not to be conflated with the International Date Line , which diverges from it in several places for political and convenience reasons, including between far eastern Russia and

1044-430: The same datum will obtain the same location measurement for the same physical location. However, two different datums will usually yield different location measurements for the same physical location, which may appear to differ by as much as several hundred meters; this not because the location has moved, but because the reference system used to measure it has shifted. Because any spatial reference system or map projection

1080-646: The same prime meridian but measured latitude from the Equator instead. After their work was translated into Arabic in the 9th century, Al-Khwārizmī 's Book of the Description of the Earth corrected Marinus' and Ptolemy's errors regarding the length of the Mediterranean Sea , causing medieval Arabic cartography to use a prime meridian around 10° east of Ptolemy's line. Mathematical cartography resumed in Europe following Maximus Planudes ' recovery of Ptolemy's text

1116-486: The shape of the earth (usually a reference ellipsoid for a horizontal datum, and a more precise geoid for a vertical datum) to the earth. Traditionally, this binding was created by a network of control points , surveyed locations at which monuments are installed, and were only accurate for a region of the surface of the Earth. Some newer datums are bound to the center of mass of the Earth. This combination of mathematical model and physical binding mean that anyone using

General Electric Everett Plant - Misplaced Pages Continue

1152-458: The surface of Earth called parallels , as they are parallel to the Equator and to each other. The North Pole is 90° N; the South Pole is 90° S. The 0° parallel of latitude is designated the Equator , the fundamental plane of all geographic coordinate systems. The Equator divides the globe into Northern and Southern Hemispheres . The longitude λ of a point on Earth's surface

1188-445: The width per minute and second, divide by 60 and 3600, respectively): where Earth's average meridional radius M r {\displaystyle \textstyle {M_{r}}\,\!} is 6,367,449 m . Since the Earth is an oblate spheroid , not spherical, that result can be off by several tenths of a percent; a better approximation of a longitudinal degree at latitude ϕ {\displaystyle \phi }

1224-509: Was a major commercial satellite operator of North American geosynchronous satellites based in the United States . The company started as RCA Americom in 1975 before being bought by General Electric in 1986 and then later acquired by SES in 2001. In September 2009, SES Americom and SES New Skies merged into SES World Skies . RCA American Communications (RCA Americom) was founded in 1975 as an operator of RCA Astro Electronics -built satellites. The company's first satellite; Satcom 1 ,

1260-529: Was a plant operated by General Electric from 1941 into the 1980s in Everett, Massachusetts . It was situated along the Malden River on a 43-acre tract, covering 344,342 square feet. The facility, before it was demolished, was the location of ten smaller buildings and one large manufacturing facility. At the time, it was also home to machining, metal stamping, welding, grinding, cleaning and parts testing. Previously,

1296-414: Was launched on 12 December 1975. Satcom 1 was one of the earliest geostationary satellites. Satcom 1 was instrumental in helping early cable TV channels (such as Superstation TBS and CBN ) to become initially successful, because these channels distributed their programming to all of the local cable TV headends using the satellite. Additionally, it was the first satellite used by broadcast TV networks in

#861138