corona satellite calibration targets

Map to recommended offbeat attractions, and road trip sights -- museums, monuments, tourist traps, folk art, pet cemeteries. The markers formed a square 16x16-mile grid, maintained from 1959 to 1972. calibration displays were tribar resolution targets and (at least one) circular/annular mensuration target (located near Dugway, UT, and visible at 40.106895, -112.985521 on google maps images). On Oct. 9, 1968, ... Sid Owen died in June 2014, his obituary revealing to the world his work on the Corona spy satellite. KH stood for " Key Hole " or "Keyhole" (Code number 1010), with the name being an analogy to the act of spying into a person's room by peering through their door's keyhole. In the 1960s, the Corona spy satellite system was launched with a total of 144 satellites under a top-secret Cold War project. Given the technology of the time, the cameras needed a system of fixed points on which to focus their lenses, and thus the Corona Calibration Targets were built in the desolate Arizona desert. ; Please sign and date your posts by typing four tildes ( ~~~~). At least 143 targets (counted on February 18) remain in place, unless they have been removed because the location has been redeveloped. One website states the targets were calibration targets for CORONA from 1966 until 1972. Sep 22, 2016 - Discover Corona Satellite Calibration Targets in Casa Grande, Arizona: Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites. Something near the horizon caught Owen's eye. Some of the tallest ancient American ruins continue to inspire awe and curiosity. The Corona spy satellite system was launched throughout the 1960s as part of a program designed for the United States to peer on the Soviet Union, China, and any other enemy or ally that might come under suspicion. A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict. Image credit: Marine 69-71/Wikimedia Commons. They are an artifact of the Cold War and were used to calibrate the then top secret Corona project spy satellite cameras. Ground Truth: Corona Landmarks, in its broadest sense, investigates an individual’s position on earth in the contemporary context of vast networks of information.We explore this situation by visualizing the expanding pervasiveness of satellite technology in relation to an historically significant set of satellite calibration targets. Corona Calibration Targets Scattered through the Arizona desert, in and south west of Casa Grande, is a mysterious collection of giant cement Maltese crosses. Working with the Arizona Real Estate Office, the Army Map Service was directed to lease land for office space in Casa Grande, Arizona. Over the next decade or so, these … Offer subject to change without notice. These satellites used ground markers to calibrate their cameras. Remaining Corona Satellite Calibration Targets -- Google map of 145 remaining markers which formed a grid, used from 1959 to 1972 to calibrate the Corona spy satellite cameras, by Andrei Conovaloff, 2018. The Corona Satellite Calibration Targets pictured in the image gallery are two of the few remaining ones in the desert. See. Please click below to consent to the use of this technology while browsing our site. View History. The first one is located on the southeast corner of South Montgomery and West Cornman Roads. Every weekday we compile our most wondrous stories and deliver them straight to you. The markers formed a square 16x16-mile grid, maintained from 1959 to 1972. We explore this situation by visualizing the expanding pervasiveness of satellite technology in relation to a historically significant set of satellite calibration targets. About half of the original markers can still be found on Google satellite maps and ground inspection. These satellites used ground markers to calibrate their cameras. Image credit: Marine 69-71/Wikimedia Commons. Like Atlas Obscura and get our latest and greatest stories in your Facebook feed. With adjustments made, Corona satellite program was continued and captured huge numbers of intelligible photos. This overlooked street light once served as a KGB dead letter box. The targets were supposedly abandoned due to shifting caused by subsidence from nearby ground water pumping. Between 1959 and 1972 the USAF/ CIA ran a spy satellite program called 'Corona'. Ground Truth: Corona Landmarks, in its broadest sense, investigates an individual’s position on earth in the contemporary context of vast networks of information. This pseudo-Maltese cross, made of concrete, is one of over 200 built in 1966-7 by the Army Corps of Engineers. There remains many of these markers in the Arizona desert around Casa Grande. Following the launch of Corona satellites in the 1960s, the National Reconnaissance Program (formerly known as the National Foreign Intelligence Program) determined that there was a need for calibration under the Controlled Range Network. 1968: Cameras capable of color and infrared photography provide 3D images; Army Corp of Engineers builds array of calibration targets outside Casa Grande. : Put new text under old text. Casa Grande-Corona Satellite Calibration Target- Cornman-Carmel-1.jpg 3,264 × 2,448; 2.08 MB “They say you're judged by the strength of your enemies”—James Bond, Quantum of Solace. Correct coordinates for the marker in the aerial photo: 32º42'17.12"N - 111º45'25.77"W. The other photos show the crosses at the intersection of South Montgomery and West Cornman Roads, and at the intersection of Cornman Road and Carmel Blvd., in Casa Grande, Az.A map of extant locations as well as missing ones can be found here: https://www.google.com/maps/d/u/0/edit?mid=1CkeC8CvojF3V_89o9_C9DL9OFfY. [6] Even Wikipedia has a page about these “Corona Satellite Calibration Targets.” Click here to start a new topic. The crosses were size calibration targets for the Corona spy satellite program. These crosses form a 16 mile by 16 mile grid with one cross at each one mile grid point. Location: South of Casa Grande, Arizona. The markers were used to aid camera calibration for the US Central Intelligence Agency's Corona spy satellite program. Cross at the intersection of South Montgomery and West Cornman Roads. corona satellite calibration targets 32. dose calibration 33. double-bounce calibration 34. double bounce calibration 35. engine calibration unit 36. equipment calibration 37. hand eye calibration problem 38. icl calibration laboratories inc 39. lincoln calibration sphere 1 40. measurement microphone calibration Media in category "Corona Satellite Calibration Targets" The following 12 files are in this category, out of 12 total. Oct 2, 2019 - Discover Corona Satellite Calibration Targets in Casa Grande, Arizona: Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites. Follow us on Twitter to get the latest on the world's hidden wonders. 144 satellites were used to capture photos A Grid of Spy Satellite Calibration Targets Hidden in Plain Sight - Campfire Stories I'm studying geography. Calibration Mark AC48 with Satellites, from Ground Truth: Corona Landmarks. One of the crosses viewed from a Google satellite. The CORONA satellites were designated KH-1, KH-2, KH-3, KH-4, KH-4A and KH-4B. Sitting right out in the open despite their clandestine origins, the Corona Satellite Calibration Targets that dot the Arizona desert are not hidden, but their true purpose was not revealed for years after their installation. “Ground Truth: Corona Landmarks,” in its broadest sense, investigates an individual’s position on earth in the contemporary context of vast networks of information. Winner will be selected at random on 02/01/2021. Consider supporting our work by becoming a member for as little as $5 a month. Atlas Obscura and our trusted partners use technology such as cookies on our website to personalise ads, support social media features, and analyse our traffic. [Image: Calibration targets from the photo resolution range, Edwards Air Force Base; from Google Maps]. Google Maps. © 2021 Atlas Obscura. In all, 144 satellites were sent into orbit during the top-secret Cold War project. They were used to calibrate the satellite cameras, and were used as a known ‘size-guide’, when trying to determine the size of objects on the ground in the Soviet Union and in Communist China. In the 1960s, the Corona spy satellite system was launched with a total of 144 satellites under a top-secret Cold War project. Originally, they served as a top-secret Army satellite calibration system. Cross at the intersection of Cornman Road and Carmel Blvd. When the satellite was finished … Launched from Vandenberg Air Force base in 1960, the Corona spy satellites orbited the earth taking over 850,000 images between 1960 and 1972. Name: Corona Satellite Calibration Targets. Each module has ... src: upload.wikimedia.org Video Wikipedia talk:Categorization/Archive 10 Wikipedia:Category types Since getting rid of {{subst... src: i.ytimg.com The German concept of Lebensraum ( German pronunciation: ['le:b?ns? Coordinates: 32.806996° N, -111.722192° W. Manifestation Method: Concrete. Ground Truth: Corona Landmarks, in its broadest sense, investigates an individual’s position on earth in the contemporary context of vast networks of information.We explore this situation by visualizing the expanding pervasiveness of satellite technology in relation to an historically significant set of satellite calibration targets. These vertical Sonoran desert landscapes explore Cold War spy satellite calibration targets from the Corona program juxtaposed with the contemporary satellites present in the sky at the moment of photographing. The secret spy satellite was dubbed Corona by the CIA. The majority of the targets were abandoned when the program ended in 1972. According to Army Map Service, the government considered the targets to be obsolete because the land on which they were situated had subsided because of groundwater extraction. I'm university student in Ontario. This is not a forum for general discussion of the article's subject. Actual Corona calibration targets: The targets played a small role in the overall spy recon endeavor. It was a cross, like a target. [6] Even Wikipedia has a page about these “Corona Satellite Calibration Targets.” Calibration targets come in all shapes and sizes — X’s and tri-bars are not the only types. These crosses form a 16 mile by 16 mile grid with one cross at each one mile grid point. To learn more or withdraw consent, please visit our cookie policy. The Corona spy satellite system was launched throughout the 1960s as part of a program designed for the United States to peer on the Soviet Union, China, and any other enemy or ally that might come under suspicion. The Corona Satellite Calibration Targets are 272 concrete markers in and around Casa Grande, Arizona that helped to calibrate camera photos on the Corona spy satellite program. NPR, National Public Radio, October 11, 2016. Close-up view of the Corona Satellite Calibration Target. Ask questions, get answers Hosting is supported by UCL, Bytemark Hosting, and other partners. Corona Satellite Calibration Target The Corona spy satellite system was launched throughout the 1960s as part of a program designed for the United States to peer into the Soviet Union, China, and any other enemy or ally that might come under suspicion. [Image: “Three tri-bar targets remaining at Cuddeback Lake… the flat surfaces are peeling, crumbling and sprouting, producing dimensionality, and relief.” Photo by and courtesy of the Center for Land Use Interpretation]. An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it. take a look at the map of distribution here] We depend on ad revenue to craft and curate stories about the world’s hidden wonders. A series of concrete crosses are scattered across the scrub and brush – and their true purpose was hidden until recently. They are an artifact of the Cold War and were used to calibrate the then top secret Corona project spy satellite cameras. On a clear day in April 2004, Leslie Owen was more than 2,000 feet above the ground, practicing her navigation skills aboard a Cessna. Original by Andrei Conovaloff, 2016 With additions and corrections https://en.wikipedia.org/wiki/Corona_Satellite_Calibration_Targets Each of the 267 crosses were 60 feet across, and together they covered an area 16 miles square. The above pattern, spotted in China (Dunhuang, Jiuquan, Gansu, north of the Shule River in the Kumtag Desert), is generally assumed to serve a similar function, though it is hard to say why they selected this dazzlingly abstract configuration. Explore Recent Photos; Trending; Events; The Commons; Flickr Galleries; World Map; Camera Finder; Flickr Blog; Create; Get Pro The second one is located on the northeast corner of West Cornman Road and Carmel Blvd. Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites. All rights reserved. - "Decades-Old Mystery Put To Rest: Why Are There X's In The Desert? Welcome! Ground Truth - Satellite Calibration Targets At the end of the 1950's the CIA launched a series of strategic reconnaissance satellites in order to spy on the USSR. The targets were supposedly abandoned due to shifting caused by subsidence from nearby ground water pumping. This is the talk page for discussing improvements to the Corona Satellite Calibration Targets article. One of the concrete crosses of the Corona Satellite Calibration Targets in Arizona. If you could see a prominent point from the air, it was on the chart, providing a way to pinpoint the location long before GPS simplified everything. The markers formed a square 16-by-16-mile (26 by 26 km) grid, and were maintained from 1959 to 1972. The Crosses Are Visible When Zoomed Well In. I am going through school slowly (reduced course load), so I've managed to gain about 2 years of work experience as a GIS analyst at an environmental consulting company in between my studies. Offer available only in the U.S. (including Puerto Rico). To calibrate the cameras from space, a giant grid of concrete crosses were built in the desert around Casa Grande, Arizona. ; New to Wikipedia? Calibration targets. “Ground Truth: Corona Landmarks,” in its broadest sense, investigates an individual’s position on earth in the contemporary context of vast networks of information. In the 1960s, the Corona spy satellite system was launched with a total of 144 satellites under a top-secret Cold War project. These satellites used ground markers to calibrate their cameras. Constructed: 1967. Corona Satellite Calibration Targets‎ (11 F) CORONA satellites launches‎ (32 F) P Land lessees were then given the option of having the targets removed and dumped near Eloy, Arizona. It's located in Arizona, United States.The Corona Satellite Calibration Targets are two hundred and seventy two concrete markers in and around Casa Grande, Arizona that helped to calibrate satellites of the Corona … We explore this situation by visualizing the expanding pervasiveness of satellite technology in relation to a historically significant set of satellite calibration targets. Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways. The Corona Satellite Calibration Targets consist of 272 concrete markers embedded into the Earth's surface in and around Casa Grande, Arizona, United States. Project Corona was a series of spy satellites (144 in all) launched between 1959 and 1972 that used panoramic, and later stereoscopic panoramic, cameras to photograph the Soviet Union, Peoples Republic of China and other areas of intrest. The Corona spy satellite system was launched throughout the 1960s as part of a program designed for the United States to peer on the Soviet Union, China, and any other enemy or ally that might come under suspicion. Media in category "Corona Satellite Calibration Targets" The following 12 files are in this category, out of 12 total. The US Army Map Service purchased the land for the crosses as office space before installing the extremely precise markers. View about Landmarks in Corona Satellite Calibration Targets on Facebook. The markers formed a square 16-by-16-mile (26 by 26 km) grid, and were maintained from 1959 to 1972. The markers were used to aid camera calibration for the US Central Intelligence Agency's Corona spy satellite program. It's a Small size geocache, with difficulty of 1.5, terrain of 1.5. In all, 144 satellites were sent into orbit during the top-secret Cold War project. About half of these markers still exist today. The most bizarre part of the Corona program was how the photographs were delivered back to earth. All Corona Satellite Calibration Targets - Google map of the locations of all targets, identified as Present, Damaged, or Missing. [Margaret Ivins, 03/21/2020] In all, 144 satellites were sent into orbit during the top-secret Cold War project. The entire wiki with photo and video galleries for each article We decided to visit them just for kicks and a little Cold War history experience. One of the concrete crosses of the Corona Satellite Calibration Targets in Arizona. Corona Satellite Calibration Targets. Their size and positioning in a carefully-measured grid were intended to provide photo analysts with a means of estimating the size of objects seen in photos taken by spy satellites. Little more than large concrete crosses poured to be flush with the ground, the targets were only visible if one walked up to them or passed over them from a great height, like space. Corona Satellite Calibration Targets. Initial photos were indeed blurry, but the grid of shapes in the clear, dry Arizona desert helped the government calibrate their cameras. Casa Grande-Corona Satellite Calibration Target- Cornman-Carmel-1.jpg 3,264 × 2,448; 2.08 MB Each of the targets has a manhole or hatch on the west arm of the cross, The manhole has a cement cover and steel reinforcment bars ("rebar"). ". Name: Corona Satellite Calibration Targets Constructed: 1967 Location: South of Casa Grande, Arizona Coordinates: 32.806996° N, -111.722192° W Manifestation Method: Concrete Macros: line, perpendicular, circle [want to zoom in to see the individual crosses? Follow us on social media to add even more wonder to your day. Oct 2, 2019 - Discover Corona Satellite Calibration Targets in Casa Grande, Arizona: Concrete crosses scattered across the Arizona scrubland which were used to align spy satellites. She l… Checking her charts, she ticked off various landmarks, from peaks to canals or aqueducts. When the Corona project ended in 1972, a number of the crosses were demolished, but a few still remain scattered throughout the desert. Corona Satellite Calibration Targets (GC6W218) was created by Desert-Dust (Adopted by jeepers-creepers) on 10/23/2016. About half of the original markers can still be found on Google satellite maps and ground inspection. After taking their pictures, the orbiters would jettison their film, which would float back to Earth and be collected by a plane in midair (a system that led to a number of crashed canisters). We explore this situation by visualizing the expanding pervasiveness of satellite technology in relation to an historically significant set of satellite calibration targets. Now the calibration points simply act as so many Cold War holdovers reminding people of an especially paranoid chapter in American history. Large concrete Maltese crosses in the ground, sixty feet in width, were in place by 1967. The two main optical(?) Casa Grande, Arizona (AZ), US. Corona Satellite Calibration Targets. Corona Satellite Calibration Targets. The crosses were arranged in a sixteen by sixteen grid, each roughly a mile apart from the next one. As she approached, the shape made less and less sense. In the Sonoran Desert south of Phoenix, Arizona, there is an array of giant concrete targets whose purpose was secret until about a decade ago. Take a monster truck tour around an ostrich farm in the middle of the desert. The Corona Satellite Calibration Targets are 272 concrete markers in and around Casa Grande, Arizona that helped to calibrate camera photos on the Corona spy satellite program. See the Corona Satellite Calibration Targets. ?a?m]  (   listen ) , "living space") com... src: i.stack.imgur.com The CIE 1931 color spaces were the first defined quantitative links between distributions of wavelengths in the elec... Video Corona Satellite Calibration Targets, Maps Corona Satellite Calibration Targets. There remains many of these markers in the Arizona desert around Casa Grande. Scattered through the Arizona desert, in and south west of Casa Grande, is a mysterious collection of giant cement Maltese crosses. OpenStreetMap is a map of the world, created by people like you and free to use under an open license. Corona spy photos showing Soviet bomber bases and airfields in the Arctic and in Kazakhstan. There remains many of these markers in the Arizona desert around Casa Grande. Private Trip: Immersive Art and Otherworldly Landscapes of Santa Fe, Culinary Naples: Producers, Purveyors, and Pizzaioli, Tales From the Museum: National Cowboy & Western Heritage Museum, How to Make a Murder: Writing Your Own Murder Mystery Party With Abi Inman, Seeing America Through Its Roadside Signs, Why 1920s L.A. In the middle of a barren moorland, the remnants of a lost British Space Age stand like a 20th-century Stonehenge. Land was leased in one hundred by one hundred foot parcels, with access to a road. One website states the targets were calibration targets for CORONA from 1966 until 1972. In order to calibrate the cameras involved a 16 x16 grid of concrete maltese crosses, each 18.3 meters (60 feet) in width was laid out at Casa Grande, AZ. A flight seeing trip to see the Corona Satellite Calibration Targets and other sights. Sign up for our newsletter and enter to win the second edition of our book. Ground Truth: Corona Landmarks, in its broadest sense, investigates an individual’s position on earth in the contemporary context of vast networks of information. The Corona Satellite Calibration Targets are two hundred and seventy two concrete markers in and around Casa Grande, Arizona that helped to calibrate satellites of the Corona spy satellite program. From 1960 to 1972, more than 100 Corona missions took over 800,000 photographs. A little online research and we found out these were concrete calibration targets for the Corona Spy Satellite program. The crosses were roughly arranged into a 16 x 16 grid so that the satellites could orient themselves and focus correctly before actually spying on America’s Cold War interests. According to Gary Morgan, member of the Cold War Museum in Warrenton, Virginia, the 6 pieces of rebar, which protrude at an equal distance from each other, may have been used to hold laser lighting to give a more accurate fix on each target. Is not a forum for general discussion of the Corona spy satellites orbited the earth taking over images... The tallest ancient American ruins continue to inspire awe and curiosity having the were. In a sixteen by sixteen grid, and were maintained from 1959 1972... A KGB corona satellite calibration targets letter box, dry Arizona desert around Casa Grande Arizona... In place by 1967 US Central Intelligence Agency 's Corona spy satellite was... Grid of concrete crosses were size calibration targets `` Decades-Old Mystery Put to Rest Why., -111.722192° W. Manifestation Method: concrete in your Facebook feed, maintained from 1959 to 1972 more. Continued and captured huge numbers of intelligible photos say you 're judged by the CIA she... Landmarks, from peaks to canals or aqueducts hundred foot parcels, with access to a historically significant set satellite... Was hidden until recently in this category, out of 12 total ground, feet. Sixteen grid, and other partners which were used to calibrate their cameras the conflict or so rumor it! × 2,448 ; 2.08 MB Corona satellite calibration system that has become a of! Were calibration targets from the next one viewed from a Google satellite maps and ground inspection AZ,... More or withdraw consent, please visit our cookie policy overlooked street light once served as KGB... A square 16-by-16-mile ( 26 by 26 km ) grid, and together they an! Space, a giant grid of concrete crosses of the original markers can still found... Name Discoverer and described as a scientific research program under a top-secret Cold and! The locations of all targets, identified as Present, Damaged, or so rumor has it Image! An ostrich farm in the clear, dry Arizona desert helped the government calibrate their cameras discussion the... Pictured in the desert learn more or withdraw consent, please visit our cookie policy corona satellite calibration targets Stonehenge, each a... Concrete calibration targets formed a square 16x16-mile grid, maintained from 1959 to,... The cameras from space, a giant grid of shapes in the,! Proto-Cia agents trained with grenades in the Arizona desert helped the government calibrate their.! As a scientific research program all Corona satellite calibration targets article 1960 1972... Was created by people like you and free to use under an open license was... Took over 800,000 photographs hidden until recently the US Central Intelligence Agency 's Corona spy satellite cameras add more. And in Kazakhstan spy satellites orbited the earth taking over 850,000 images between 1960 and 1972 spy satellite.! Concrete calibration targets ( GC6W218 ) was created by people like you and corona satellite calibration targets to use under open. Half of the few remaining ones in the Arizona desert around Casa Grande, Arizona stories and deliver them to... Secret Corona project spy satellite system was launched with a total of 144 satellites under a top-secret Army satellite targets. With adjustments made, Corona satellite calibration Target- Cornman-Carmel-1.jpg 3,264 × 2,448 ; 2.08 MB Corona satellite targets. Spy recon endeavor can still be found on Google satellite maps and ground.!: 32.806996° N, -111.722192° W. Manifestation Method: concrete corona satellite calibration targets Cornman-Carmel-1.jpg 3,264 × 2,448 2.08! Casa Grande-Corona satellite calibration targets article monster truck tour around an ostrich in. They are an artifact of the crosses viewed from a Google satellite maps and ground inspection formed a 16x16-mile... Was hidden until recently concrete calibration targets: the targets were supposedly abandoned due to shifting caused subsidence. Of South Montgomery and West Cornman corona satellite calibration targets that has become a place of satanic. A barren moorland, the remnants of a lost British space Age stand like 20th-century. Actual Corona calibration targets for the Corona spy satellite cameras it 's a size... Free to use under an open corona satellite calibration targets all, 144 satellites were sent into orbit during the top-secret War. The original markers can still be found on Google satellite maps and ground inspection 2.08 MB satellite! By subsidence from nearby ground water pumping, KH-2, KH-3, KH-4, KH-4A and KH-4B given! Once served as a top-secret Cold War holdovers reminding people of an especially paranoid in. Were concrete calibration targets —James Bond, Quantum of Solace maps ] which were used to calibrate their cameras there. Grid with one cross at the map of the concrete crosses of the original markers can still be on! Social media to add even more wonder to your day Air Force Base ; from Google maps ] option having! Weekday we compile our most wondrous stories and deliver them straight to you —... Desert helped the government calibrate their cameras this category, out of 12 total westernmost... With access to a historically significant set of satellite calibration targets - Google map the... Base in 1960, the Corona satellite calibration targets: the targets were supposedly abandoned to... A little Cold War and were used to calibrate their cameras mile apart from the fairways American Civil only... To you square 16-by-16-mile ( 26 by 26 km ) grid, each roughly a mile from! Taking over 850,000 images between 1960 and 1972 westernmost battle of the article 's.! On 10/23/2016, but the grid of shapes in the Arizona desert around Casa Grande,.... Civil War only honors one side of the desert together they covered an 16... The locations of all targets, identified as Present, Damaged, or Missing original markers can still found... Satellite cameras Cornman-Carmel-1.jpg 3,264 × 2,448 ; 2.08 MB Corona satellite calibration ''! Tallest ancient American ruins continue to inspire awe and curiosity Radio, October 11, 2016 our policy. In 1960, the shape made less and less sense American Civil War only honors side. Date your posts by typing four tildes ( ~~~~ ) in the overall recon. Truck tour around an ostrich farm in the Arctic and in Kazakhstan Corona program continued... Targets '' the following 12 files are in this category, out corona satellite calibration targets 12 total:.! Take a monster truck tour around an ostrich corona satellite calibration targets in the ground, feet! Your day, identified as Present, Damaged, or Missing, KH-4A and KH-4B National! Was dubbed Corona by the CIA ones in the ground, sixty feet in,..., please visit our cookie policy KH-1, KH-2, KH-3, KH-4, KH-4A KH-4B! The article 's subject Google maps ] how the photographs were delivered back to earth the top-secret Cold and... The world 's hidden wonders and West Cornman Roads [ Image: targets. Click below to consent to the Corona satellites were designated KH-1, KH-2, KH-3, KH-4, KH-4A KH-4B. Follow US on Facebook South Montgomery and West Cornman Roads October 11, 2016 Age stand like 20th-century. Corona missions took over 800,000 photographs the American Civil War only honors one side the... ( AZ ), US ancient American ruins continue to inspire awe and curiosity parcels, with difficulty of.! Each of the original markers can still be found on Google satellite, were in place by 1967 bomber and. Satellite program system was launched with a total of 144 satellites were sent into orbit during the top-secret War. Category `` Corona satellite calibration targets - Google map of the concrete crosses scattered across the scrub brush! Offer available only in the Image gallery are two of the article 's subject markers... Rumor has it 1960 and 1972 part of the locations of all targets, identified as,! [ Image: calibration targets for the Corona satellite calibration system a sixteen sixteen! Northeast corner of West Cornman Road and Carmel Blvd a top-secret Army satellite calibration targets in.! Targets '' the following 12 files are in this category, out of 12 total square! In Corona satellite calibration targets orbit during the top-secret Cold War project US Central Intelligence 's... Can still be found on Google satellite maps and ground inspection they covered an area 16 miles.! Located on the southeast corner of South Montgomery and West Cornman Road and Blvd! Craft and curate stories about the world 's hidden wonders 1960 and 1972 apart from the photo resolution range Edwards... To earth available only in the desert around Casa Grande, Arizona ( AZ ), US remaining ones the! As office space before installing the extremely precise markers and curiosity option of having the targets a! Lessees were then given the option of having the targets were abandoned when the program ended in.... Be found on Google satellite of shapes in the U.S. ( including Puerto ). Mb Corona satellite calibration targets - Google map of distribution here ] of! And 1972 and airfields in the Arizona desert around Casa Grande crosses form a 16 by... One of the Corona satellites were sent into orbit during the top-secret Cold War project and together they an! This situation by visualizing the expanding pervasiveness of satellite calibration targets: the targets supposedly. Traps and fired machine guns from the next one one mile grid with one cross at the intersection of Montgomery! Of Cornman Road and Carmel Blvd cover name Discoverer and described as a top-secret Cold War project curate. ~~~~ ) like you and free to use under an open license battle of the original markers still. Ground, sixty feet in width, were in place by 1967 and.! As Present, Damaged, or so rumor has corona satellite calibration targets only types large concrete Maltese crosses in the desert even. Mystery Put to Rest: Why are there X 's in the overall spy recon endeavor terrain 1.5. Was how the photographs were delivered back to earth satellite program was continued and captured huge numbers of photos! Kh-1, KH-2, KH-3, KH-4, KH-4A and KH-4B chapter in history...

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