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Planet Labs PBC (formerly Planet Labs, Inc. and Cosmogia, Inc.) is an American
public In public relations and communication science, publics are groups of individual people, and the public (a.k.a. the general public) is the totality of such groupings. This is a different concept to the sociological concept of the ''Öffentlichk ...
Earth imaging Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world. Satellite imaging companies sell i ...
company based in
San Francisco, California San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...
. Their goal is to image the entirety of the Earth daily to monitor changes and pinpoint trends. The company designs and manufactures Triple-
CubeSat A CubeSat is a class of miniaturized satellite based around a form factor consisting of cubes. CubeSats have a mass of no more than per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats ...
miniature satellites called Doves that are then delivered into orbit as secondary payloads on other rocket launch missions. Each ''Dove'' is equipped with a high-powered telescope and camera programmed to capture different swaths of Earth. Each ''Dove'' Earth observation satellite continuously scans
Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...
, sending data once it passes over a ground station, by means of a
frame image sensor An image sensor or imager is a sensor that detects and conveys information used to make an image. It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of cu ...
. The images gathered by ''Doves'', which can be accessed online and some of which is available under an
open data Open data is data that is openly accessible, exploitable, editable and shared by anyone for any purpose. Open data is licensed under an open license. The goals of the open data movement are similar to those of other "open(-source)" movement ...
access policy, provide up-to-date information relevant to climate monitoring, crop yield prediction, urban planning, and disaster response. With acquisition of BlackBridge in July 2015, Planet Labs had 87 ''Dove'' and 5 ''
RapidEye RapidEye AG was a German geospatial information provider focused on assisting in management decision-making through services based on their own Earth-observation imagery. The company operated a five-satellite constellation producing 5-meter res ...
'' satellites launched into orbit. In 2017, Planet launched an additional 88 Dove satellites, and
Google Google LLC () is an American Multinational corporation, multinational technology company focusing on Search Engine, search engine technology, online advertising, cloud computing, software, computer software, quantum computing, e-commerce, ar ...
sold its subsidiary
Terra Bella SkySat is a constellation of sub-meter resolution Earth observation satellites owned by Planet Labs, providing imagery, high-definition video and analytics services. Planet acquired the satellites with their purchase of Terra Bella (formerly ...
and its SkySat satellite constellation to Planet Labs. By September 2018 the company had launched nearly 300 satellites, 150 of which are active. In 2020, Planet Labs launched six additional high-resolution SkySats, SkySats 16–21, and 35 Dove satellites. Through a deal funded by Norway’s Climate and Forests Initiative (NICFI), Planet and its partners Airbus and KSAT are providing access to high-resolution basemaps of 64 tropical countries to help combat deforestation. It also provides data to
FAO The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
's Framework for Ecosystem Monitoring (Ferm). Following a January 2021 launch of 48 Planet SuperDoves, the company operated a global constellation of over 200 active satellites. In July 2021 Planet Labs announced that they plan to become a
public company A public company is a company whose ownership is organized via shares of stock which are intended to be freely traded on a stock exchange or in over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange ( ...
and list on the
New York Stock Exchange The New York Stock Exchange (NYSE, nicknamed "The Big Board") is an American stock exchange in the Financial District of Lower Manhattan in New York City. It is by far the world's largest stock exchange by market capitalization of its listed ...
through a merger with the SPAC DMY Technology Group Inc IV. The deal would value Planet at US$2.8B. The business combination was completed on December 7, 2021. Planet registered as a public benefit corporation and formally changed its name to Planet Labs PBC. The stock began trading on the
New York Stock Exchange The New York Stock Exchange (NYSE, nicknamed "The Big Board") is an American stock exchange in the Financial District of Lower Manhattan in New York City. It is by far the world's largest stock exchange by market capitalization of its listed ...
on December 8, 2021. After the merger, Planet had more than $500 million in capital and about 190 satellites in orbit. The company expected it to take the next few years until they get to cashflow breakeven, funding their operations with $200 million from the aforementioned $500 million (the rest $300 million forming a "strategic warchest"). At the time of the merger, the company had over 600 customers (most customers, 90%, are annual subscriptions to Planet's data service) and it generated $113 million in revenue in 2020. At the time of the merger, Planet aimed to be profitable on an adjusted EBITDA basis by early 2025, and to grow its annual revenue to nearly $700 million by early 2026. Planet Labs has contracts to supply imagery to various agencies of the US government, including the FAS, NOAA, Oak Ridge, Sandia, the
Bureau of Reclamation The Bureau of Reclamation, and formerly the United States Reclamation Service, is a federal agency under the U.S. Department of the Interior, which oversees water resource management, specifically as it applies to the oversight and opera ...
, and
NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...
.


History

Planet Labs was founded in 2010 as ''Cosmogia'' by former
NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...
scientists Chris Boshuizen, Will Marshall, and Robbie Schingler.Brewster, Signe
"With plans to launch 28 satellites next year, at Planet Labs, the space industry is back"
''gigaom.com'', 2 August 2013. Retrieved on 18 September 2013.
Graham, William
"Russian Dnepr conducts record breaking 32 satellite haul"
''nasaspaceflight.com'', 21 November 2013. Retrieved on 26 November 2013.
Solon, Olivia
"In pictures: Planet Labs' nanosatellites"
, ''Wired'', 13 August 2013. Retrieved on 26 November 2013.
The initial goal of the company was to make use of information gathered from space to help with life on Earth. The group of scientists considered the problem with most satellites to be their large and clunky form, prompting them to build inexpensive and compact satellites to be manufactured in bulk, called CubeSats. The small group began building Planet's first satellite in a California garage. Planet Labs launched two demonstration
CubeSat A CubeSat is a class of miniaturized satellite based around a form factor consisting of cubes. CubeSats have a mass of no more than per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats ...
s, Dove 1 and Dove 2, in April 2013.Wall, Mike
"Planet Labs Unveils Tiny Earth-Observation Satellite Family"
''space.com'', 31 August 2013. Retrieved on 18 September 2013.
Both Dove 1 (aboard Antares 110 rocket) and Dove 2 (aboard a Soyuz Rocket) were placed in a sun-synchronous orbit. Dove 3 and Dove 4 were launched in November 2013. In June 2013, it announced plans for
Flock-1 Flock-1 is a CubeSat satellite constellation launched on 9 January 2014. The satellite is built in a CubeSat bus, and each constellation consists of 28 satellites. All instruments are powered by solar cells mounted on the spacecraft body, alon ...
, a constellation of 28 Earth-observing satellites. The Flock-1 CubeSats were brought to the
International Space Station The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ( ...
in January 2014Wall, Mike
"Record-Breaking 33 'Cubesats' to Launch from Space Station This Month"
''space.com'', 4 February 2014. Retrieved on 6 February 2014.
and deployed via the
NanoRacks Nanoracks LLC is a private in-space services companywhich builds space hardware and in-space repurposing tools.The company also facilitates experiments and launches of CubeSats to Low Earth Orbit. Nanoracks's main office is in Houston, Texa ...
CubeSat Deployer in mid-February.Klotz, Irene
"Satellite 'Flock' Launched From ISS Cubesat Cannon: Photos"
''discovery.com'', 18 February 2014, Retrieved on 25 April 2014.
The company planned to launch a total of 131 satellites by mid-2015.Taylor, Richard
"Mini-satellites send high-definition views of Earth"
''BBC'', 15 May 2014. Retrieved on 16 May 2014.
In January 2015, the firm raised $95 million in funding. As of May 2015, Planet Labs raised a total amount of $183 million in
venture capital financing Venture capital financing is a type of funding by venture capital. It is private equity capital that can be provided at various stages or funding rounds. Common funding rounds include early-stage seed funding in high-potential, growth companies ...
. In July 2015, Planet Labs acquired BlackBridge and its RapidEye constellation. On April 18, 2017, Google completed the sale of Terra Bella and its
SkySat SkySat is a constellation of sub-meter resolution Earth observation satellites owned by Planet Labs, providing imagery, high-definition video and analytics services. Planet acquired the satellites with their purchase of Terra Bella (formerly S ...
satellite constellation to Planet Labs. As part of the sale, Google acquired an
equity stake In finance, equity is ownership of assets that may have debts or other liabilities attached to them. Equity is measured for accounting purposes by subtracting liabilities from the value of the assets. For example, if someone owns a car worth $2 ...
in Planet and entered into a multi-year agreement to purchase SkySat imaging data. On January 21, 2018, a ''Dove Pioneer'' CubeSat was part of the payload of a
Rocket Lab Rocket Lab is a public American aerospace manufacturer and launch service provider, with a New Zealand subsidiary. The company operates lightweight Electron orbital rockets, which provide dedicated launches for small satellites. Rocket Lab also ...
Electron rocket Electron is a two-stage, partially recoverable orbital launch vehicle developed by Rocket Lab, an American aerospace company with a wholly owned New Zealand subsidiary. Electron was developed to service the commercial small satellite launch mar ...
, the first orbital-entry craft launched from a privately owned and operated spaceport at
Māhia Peninsula Māhia Peninsula (Maori: or ) is located on the east coast of New Zealand's North Island, in the Hawke's Bay region, between the towns of Wairoa and Gisborne. Rocket Lab has set up its Launch Complex 1 close to Ahuriri Point at the south ...
in
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...
. In July 2018, Planet laid off somewhat less than ten percent of its workforce. In September 2018, the company had launched a total of 298 satellites, 150 of which were still active. On December 18, 2018, Planet announced they were in the process of acquiring the St Louis company, Boundless Spatial, Inc., a
geospatial data Geographic data and information is defined in the ISO/TC 211 series of standards as data and information having an implicit or explicit association with a location relative to Earth (a geographic location or geographic position). It is also ca ...
software solutions company. The portfolio of Boundless will help improve data subscription services and aid in Planet's long-term goal of increasing cooperation between the company and the U.S. government. On 3 July 2020, it was mentioned in the news that the company had "more than 120" active satellites at the time "providing daily imaging coverage over all of the world’s landmass". In August 2020, Planet completed its SkySat Constellation of 21 satellites by launching the final three SkySats on a SpaceX Falcon 9 rocket. In May 2022, SES Government Solutions, a wholly-owned subsidiary of
communications satellite A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth ...
owner and operator,
SES SES, S.E.S., Ses and similar variants can refere to: Business and economics * Socioeconomic status * Scottish Economic Society, a learned society in Scotland * SES, callsign of the TV station SES/RTS (Mount Gambier, South Australia) * SES S.A., ...
, in partnership with Planet Labs, was awarded a US$28.96 million contract from
NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...
’s Communications Services Project for
real-time Real-time or real time describes various operations in computing or other processes that must guarantee response times within a specified time (deadline), usually a relatively short time. A real-time process is generally one that happens in defined ...
, always-on low-latency connectivity services to NASA spacecraft in low-Earth orbit for routine missions, contingency operations, launch and ascent, and early operations phase communications, using SES's geostationary orbiting C-band satellites and
medium Earth orbit A medium Earth orbit (MEO) is an Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between above sea level.
ing
Ka-band The Ka band (pronounced as either "kay-ay band" or "ka band") is a portion of the microwave part of the electromagnetic spectrum defined as frequencies in the range 26.5–40 gigahertz (GHz), i.e. wavelengths from slightly over one centime ...
satellites, including the forthcoming
O3b mPOWER O3b mPOWER is a communications satellite system currently under construction and deployment. The first two satellites were launched on 16 December 2022 and commercial service is expected to begin in Q3 2023. Owned and operated by SES, O3b mPOWE ...
constellation.


Flock satellite constellations

Planet's PlanetScope satellite constellation is designed to observe Earth. By using several small satellites, CubeSats, the constellation produces three to five meters high resolution images of Earth. The flock collects images from latitudes that are within 52 degrees of Earth's equator. A large portion of the world's agricultural regions and population lie within the area imaged by the flock. Initially, the mission used the ISS (
International Space Station The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ( ...
) and different track launch vehicles to get in orbit.


Dove

Planet's Dove satellites are
CubeSat A CubeSat is a class of miniaturized satellite based around a form factor consisting of cubes. CubeSats have a mass of no more than per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats ...
s that weigh (1000 times lower than legacy commercial imaging satellites), in length, width and height, orbit at a height of about and provide imagery with a resolution of and envisaged environmental, humanitarian, and business applications.Werner, Debra
"With 2 More Cubesats in Orbit, Earth-imaging Startup Planet Labs Ships Next Batch of 28 to Wallops"
''spacenews.com'', 26 November 2013. Retrieved on 26 November 2013.
Bradshaw, Tim

''ft.com'', 26 November 2013. Retrieved on 26 November 2013.
*''Flock 1c'', consisting of 11 Dove satellites, was successfully launched on 19 June 2014 with a
Dnepr Dnepr may refer to: *Dnieper, a river flowing through Russia, Belarus and Ukraine to the Black Sea * Dnepr (motorcycle), a Ukraininan motocycle brand * Dnepr (rocket), a 1999 space launch vehicle *Dnepr radar Dnepr may refer to: *Dnieper, a river ...
rocket on a record-breaking launch that carried to orbit the largest number of satellites up to that time, 37. *''Flock 1b'', consisting of 28 Dove satellites, was successfully launched to the
ISS The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA (J ...
on 13 July 2014 with the Cygnus Orb-2 cargo mission. All of those satellites have been deployed from the ISS but 6, that have been returned to Earth with the
SpaceX CRS-5 SpaceX CRS-5, also known as SpX-5, was a Commercial Resupply Service mission to the International Space Station (ISS), conducted by SpaceX for NASA, and was launched on 10 January 2015 and ended on 11 February 2015. It was the seventh flig ...
mission 212 days later. *''Flock 1d'', consisting of 26 Dove satellites, was supposed to be carried to the ISS with the
Cygnus Orb-3 Orbital-3, also known as Orb-3, was an attempted flight of Cygnus, an automated cargo spacecraft developed by United States-based company Orbital Sciences, on 28 October 2014. The mission was intended to launch at 22:22:38 UTC that evening. ...
cargo mission but was lost due the
Antares Antares is the brightest star in the constellation of Scorpius. It has the Bayer designation α Scorpii, which is Latinised to Alpha Scorpii. Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and τ ...
rocket exploding seconds after liftoff. *''Flock 1d, consisting of 2 Dove satellites, was launched successfully as a replacement of the lost ''Flock 1d'' group on 10 January 2015 with the
SpaceX CRS-5 SpaceX CRS-5, also known as SpX-5, was a Commercial Resupply Service mission to the International Space Station (ISS), conducted by SpaceX for NASA, and was launched on 10 January 2015 and ended on 11 February 2015. It was the seventh flig ...
cargo mission and was later deployed from the ISS on 3 March 2015. *''Flock 1e'', consisting of 14 Dove satellites, was successfully launched on 14 April 2015 with the
SpaceX CRS-6 SpaceX CRS-6, also known as SpX-6, was a Commercial Resupply Service mission to the International Space Station, contracted to NASA. It was the eighth flight for SpaceX's uncrewed Dragon cargo spacecraft and the sixth SpaceX operational mis ...
cargo mission and was later deployed from the ISS between the 13 and the 16 July 2015. *''Flock 1f'', consisting of 8 Dove satellites, was supposed to be carried to the ISS on 28 June 2015 with the
SpaceX CRS-7 SpaceX CRS-7, also known as SpX-7, was a private American Commercial Resupply Service mission to the International Space Station, contracted to NASA, which launched and failed on June 28, 2015. It disintegrated 139 seconds into the flight aft ...
cargo mission but was lost due to the
Falcon 9 Falcon 9 is a partially reusable medium lift launch vehicle that can carry cargo and crew into Earth orbit, produced by American aerospace company SpaceX. The rocket has two stages. The first (booster) stage carries the second stage and pay ...
rocket disintegrating 139 seconds into the flight. *''Flock 2b'', consisting of 14 Dove satellites, was successfully launched on 19 August 2015 with the HTV-5 cargo mission and all but two satellites of the group has been deployed from the ISS, starting from 15 September 2015. *''Flock 2e'', consisting of 12 Dove Satellites, was successfully launched on 6 December 2015 with the Cygnus OA-4 cargo mission and was deployed from the ISS between 17 May and 1 June 2016. *''Flock 2e, consisting of 20 Dove Satellites, was successfully launched on 23 March 2016 with the
Cygnus OA-6 OA-6, previously known as Orbital-6, is the sixth flight of the Northrop Grumman Innovation Systems, Orbital ATK Cargo spacecraft, uncrewed resupply spacecraft Cygnus (spacecraft), Cygnus and its fifth flight to the International Space Station ...
cargo mission and was deployed from the ISS between 17 May and 14 September 2016. *''Flock 2p'', consisting of twelve Dove satellites, and ''Flock 3p'', consisting of 88 Dove satellites, were launched from
Satish Dhawan Space Centre Satish Dhawan Space Centre - SDSC (formerly Sriharikota Range - SHAR) is a rocket launch centre ( spaceport) operated by Indian Space Research Organisation (ISRO). It is located in Sriharikota, Tirupati district of Andhra Pradesh. Sriharikota ...
in Sriharikota,
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
, by ISRO (Indian Space Research Organization)
PSLV-C37 PSLV-C37 was the 39th mission of the Indian Polar Satellite Launch Vehicle (PSLV) program and its 16th mission in the XL configuration. PSLV-C37 successfully carried and deployed a record 104 satellites in sun-synchronous orbits. Launched on ...
on 22 June 2016 and 15 February 2017, respectively. ''Flock 3p'' was the largest satellite fleet ever launched. *''Flock 2k'', consisting of 48 Dove satellites, launched on 14 July 2017 aboard
Soyuz-2.1a Soyuz-2 ( GRAU index 14A14) is a modernized version of the Soviet Soyuz rocket. In its basic form, it is a three-stage launch vehicle for placing payloads into low Earth orbit. Compared to the previous versions of the Soyuz, the first-stag ...
. *''Flock 3m'', consisting of 4 Dove satellites, was launched on 31 October 2017 on a Minotaur C rocket, along with six of Planet's
SkySat SkySat is a constellation of sub-meter resolution Earth observation satellites owned by Planet Labs, providing imagery, high-definition video and analytics services. Planet acquired the satellites with their purchase of Terra Bella (formerly S ...
satellites. *''Flock 3p, consisting of 4 Dove satellites, was launched in India ISRO's
PSLV-C40 PSLV-C40 was the 42nd mission of the Indian Polar Satellite Launch Vehicle (PSLV) program in the XL configuration. PSLV-C40 successfully carried and deployed 31 satellites in sun-synchronous orbits. Overview Two Surrey Satellite Technology sate ...
mission on 12 January 2018. * A single Dove satellite nicknamed ''Dove Pioneer'' was launched on 21 January 2018 onboard the first successful flight (and second overall) of
Rocket Lab Electron Electron is a two-stage, partially recoverable orbital launch vehicle developed by Rocket Lab, an American aerospace company with a wholly owned New Zealand subsidiary. Electron was developed to service the commercial small satellite launch mar ...
rocket. *''Flock 3r'', consisting of 16 Dove satellites, was successfully launched on 29 November 2018 with the PSLV-C43 mission. *''Flock 3s,'' consisting of 3 satellites, was successfully launched on 3 December 2018 aboard a SpaceX Falcon 9 rocket from
Vandenberg Air Force Base Vandenberg may refer to: * Vandenberg (surname), including a list of people with the name * USNS ''General Hoyt S. Vandenberg'' (T-AGM-10), transport ship in the United States Navy, sank as an artificial reef in Key West, Florida * Vandenberg Sp ...
in California. *''Flock 3k,'' consisting of 12 Dove satellites, was successfully launched on 27 December 2018. The flock was launched on a Soyuz Rocket from the
Vostochny Cosmodrome The Vostochny Cosmodrome (russian: Космодром Восточный, ''Kosmodrom Vostochny'', "Eastern Spaceport") is a Russian spaceport (still partly under construction) above the 51st parallel north in the Amur Oblast, in the Russian ...
in Russia into a sun-synchronous orbit. *''Flock 4a,'' launched 1 April 2019, consisting of 20 SuperDoves, was the first flock including satellites with improved imaging technology. The flock was delivered to 504 km sun-synchronous orbit on ISRO's PSLV-C45 rocket. *''Flock 4p,'' consisting 12 SuperDoves with multiple spectral bands and other improvements was launched at 03:58 UTC on 27 November 2019 by PSLV C47 into a sun-synchronous orbit. *''Flock 4e,'' consisting of 5 SuperDoves was planned to be launched into a 500 km SSO orbit onboard
Electron The electron ( or ) is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no ...
on 4 July 2020. However, due to a failure during the second stage burn, the payloads failed to reach orbit. *''Flock-4v'', consisting of 26 SuperDoves, was successfully launched on 3 September 2020 with a
Vega Vega is the brightest star in the northern constellation of Lyra. It has the Bayer designation α Lyrae, which is Latinised to Alpha Lyrae and abbreviated Alpha Lyr or α Lyr. This star is relatively close at only from the Sun, a ...
rocket as part of the Small Satellites Mission Service Proof of Concept (SSMS PoC) mission. *''Flock 4e''’, consisting of 9 SuperDoves, was successfully launched on Rocket Labs Electron Rocket on 28 October 28 2020. *''Flock 4s'', consisting of 48 SuperDoves, was successfully launched on SpaceX’s Transporter-1 mission. This record-breaking launch successfully deployed 143 satellites - the most ever on a single mission. *''Flock 4x'', consisting of 44 SuperDoves, was successfully launched on SpaceX’s Transporter-3 mission on 13 January 2022.


RapidEye

''
RapidEye RapidEye AG was a German geospatial information provider focused on assisting in management decision-making through services based on their own Earth-observation imagery. The company operated a five-satellite constellation producing 5-meter res ...
'' was a five-satellite constellation producing resolution imagery that Planet acquired from the German company BlackBridge. The satellites were built by Surrey Satellite Technology Ltd. (SSTL) of Guildford, subcontracted by MacDonald Dettwiler (MDA) of Richmond, Canada. Each satellite was based on an evolution of the flight-proven SSTL-150 bus, measuring less than and weighing (bus + payload) each. They were launched on 29 August 2008 on a Dnepr rocket from Baikonur cosmodrome in
Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbeki ...
. Each of RapidEye's five satellites contained identical Jena-Optronik Spaceborne Scanner JSS 56 multi-spectral pushbroom sensor imagers. The five satellites traveled on the same orbital plane (at an altitude of 630 km), and together were capable of collecting over of resolution, 5-band color imagery every day. They collected data in the Blue (440-510 nm), Green (520-590 nm), Red (630-690 nm), Red-Edge (690-730 nm) and
Near-Infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of Light, visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from ...
(760-880 nm). The RapidEye constellation was officially retired in April 2020.


SkySat

''
SkySat SkySat is a constellation of sub-meter resolution Earth observation satellites owned by Planet Labs, providing imagery, high-definition video and analytics services. Planet acquired the satellites with their purchase of Terra Bella (formerly S ...
'' is a constellation of sub-metre resolution Earth observation satellites that provide imagery, high-definition video and analytics services. Planet acquired the satellites with their purchase of Terra Bella (formerly Skybox Imaging), a
Mountain View, California Mountain View is a city in Santa Clara County, California, United States. Named for its views of the Santa Cruz Mountains, it has a population of 82,376. Mountain View was integral to the early history and growth of Silicon Valley, and is the ...
-based company founded in 2009 by Dan Berkenstock, Julian Mann, John Fenwick, and Ching-Yu Hu, from Google in 2017. The SkySat satellites are based on the
CubeSat A CubeSat is a class of miniaturized satellite based around a form factor consisting of cubes. CubeSats have a mass of no more than per unit, and often use commercial off-the-shelf (COTS) components for their electronics and structure. CubeSats ...
concept, using inexpensive automotive grade electronics and fast commercially available processors, but scaled up to approximately the size of a minifridge. The satellites are approximately long, compared to approximately for a 3U CubeSat, and weigh . The first SkySat satellite, SkySat-1, was launched on a Dnepr (rocket) from Yasny, Russia on 21 November 2013, and the second, SkySat-2, launched on a
Soyuz-2 Soyuz-2 ( GRAU index 14A14) is a modernized version of the Soviet Soyuz rocket. In its basic form, it is a three-stage launch vehicle for placing payloads into low Earth orbit. Compared to the previous versions of the Soyuz, the first-stage ...
/Fregat rocket from Baikonur, Kazakhstan on 8 July 2014. Four more SkySat units were launched on 16 September 2016, by the
Vega rocket Vega ( it, Vettore Europeo di Generazione Avanzata, or french: Vecteur européen de génération avancée, or en, European Vector of Advanced Generation, meaning "Advanced generation European carrier rocket") is an expendable launch system in ...
's seventh flight from
Kourou Kourou () is a commune in French Guiana, an overseas region and department of France in South America. Kourou is famous for being the location of the Guiana Space Centre, the main spaceport of France and the European Space Agency (ESA). It i ...
, and six more SkySat satellites, along with four Dove CubeSats, were launched on a Minotaur-C rocket from
Vandenberg Air Force Base Vandenberg may refer to: * Vandenberg (surname), including a list of people with the name * USNS ''General Hoyt S. Vandenberg'' (T-AGM-10), transport ship in the United States Navy, sank as an artificial reef in Key West, Florida * Vandenberg Sp ...
on 31 October 2017. In 2020, Planet lowered their constellation of 15 SkySats from an altitude of 500 kilometers to 450 kilometers to improve the resolution of orthorectified imagery from 80 centimeters to 50 centimeters per pixel. On June 13, 2020, SpaceX's Falcon 9 rocket successfully launched SkySats 16, 17 and 18 along with a batch of its Starlink communications satellites. SkySats 19, 20 and 21 were launched on August 18, 2020 on SpaceX's Falcon 9 rocket. This completed the SkySat fleet of 21 high-resolution satellites. When launched, the SkySat constellation was orbiting at an altitude of and has a multispectral, panchromatic, and video sensor. It has a spatial resolution of 0.9 metres in its 400–900 nm panchromatic band, making it the smallest satellite to be put in orbit capable of such high resolution imagery. The multispectral sensor collects data in blue (450–515 nm), green (515–595 nm), red (605–695 nm), and near-infrared (740–900 nm) bands, all at 2 metre resolution.


See also

* Kepler Communications * Robotic spacecraft *
Satellogic Satellogic is a company specializing in Earth-observation satellites, founded in 2010 by Emiliano Kargieman and Gerardo Richarte. Satellogic began launching their Aleph-1 constellation of ÑuSat satellites in May 2016. On 19 December 2019, Sa ...
*
Spacecraft design The design of spacecraft covers a broad area, including the design of both robotic spacecraft (satellites and planetary probes), and spacecraft for human spaceflight ( spaceships and space stations). Origin Spacecraft design was born as a dis ...
* SpaceX * Spire Global


References


External links

* {{Official, http://planet.com * Planet Labs o
NASA TV
(10 November 2015). Companies based in San Francisco Aerospace companies of the United States Technology companies established in 2010 2010 establishments in California Spacecraft manufacturers Private spaceflight companies * Remote sensing companies Government procurement in the United States