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=== ION Satellite Carrier === |
=== ION Satellite Carrier === |
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[[D-Orbit]], an Italian space logistics and transportation company, developed the InOrbit NOW [[ION Satellite Carrier]]. The first launch occurred on 3 September 2020 on a [[Vega (rocket)|Vega]] rocket, but subsequent launches have all been on SpaceX [[Falcon 9]] Transporter missions. On January 3, 2023 the company launched its seventh and eighth vehicles, Second star to the right, aboard the [[SpaceX]] Transporter-6 Mission. |
[[D-Orbit]], an Italian space logistics and transportation company, developed the InOrbit NOW [[ION Satellite Carrier]]. The first launch occurred on 3 September 2020 on a [[Vega (rocket)|Vega]] rocket, but subsequent launches have all been on SpaceX [[Falcon 9]] Transporter missions. On January 3, 2023 the company launched its seventh and eighth vehicles, Second star to the right, aboard the [[SpaceX]] Transporter-6 Mission.<ref>{{Cite web |last=D-Orbit |date=2022-05-25 |title=D-Orbit Launches its Sixth ION Satellite Carrier Mission |url=https://www.globenewswire.com/en/news-release/2022/05/25/2450797/0/en/D-Orbit-Launches-its-Sixth-ION-Satellite-Carrier-Mission.html |access-date=2022-08-19 |website=GlobeNewswire News Room |language=en}}</ref> |
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=== Long Duration Propulsive ESPA (LDPE)=== |
=== Long Duration Propulsive ESPA (LDPE)=== |
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{{main|EELV Secondary Payload Adapter#Long Duration Propulsive ESPA (LDPE)}} |
{{main|EELV Secondary Payload Adapter#Long Duration Propulsive ESPA (LDPE)}} |
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LDPE is based on a [[Northrop Grumman]] payload adapter used to help attach the upper stage to the main satellite in addition to hosting a few slots for other smallsats. However, the entire system is powered by the ESPAStar satellite bus, which is in charge of power consumption and distribution as well as propulsion making it a fully operational space tug capable of deploying different payloads at different orbits. ESPAStar has the capability to host 6 smallsat payloads totaling 1,920 |
LDPE is based on a [[Northrop Grumman]] payload adapter used to help attach the upper stage to the main satellite in addition to hosting a few slots for other smallsats. However, the entire system is powered by the ESPAStar satellite bus, which is in charge of power consumption and distribution as well as propulsion making it a fully operational space tug capable of deploying different payloads at different orbits. ESPAStar has the capability to host 6 smallsat payloads totaling 1,920 kg (4,230 lb). The system is also able to provide 400 meters per second of delta-V via a Hydrazine propulsion module.<ref>{{Cite web |last=Kordina |first=Florian |date=2022-10-30 |title=USSF-44 {{!}} Falcon Heavy |url=https://everydayastronaut.com/ussf-44-falcon-heavy/ |access-date=2022-10-30 |website=Everyday Astronaut |language=en-US}}</ref> |
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The first LDPE was launched on 7 December 2021 on an [[Atlas V]] rocket as part of the [[Space Test Program|STP-3]] mission. The second launch was on 1 November 2022 on a [[Falcon Heavy]] rocket as part of the [[United States Space Force|USSF-44]] mission. A third mission is planned for 12 January 2023 on [[United States Space Force|USSF-67]] mission. |
The first LDPE was launched on 7 December 2021 on an [[Atlas V]] rocket as part of the [[Space Test Program|STP-3]] mission. The second launch was on 1 November 2022 on a [[Falcon Heavy]] rocket as part of the [[United States Space Force|USSF-44]] mission. A third mission is planned for 12 January 2023 on [[United States Space Force|USSF-67]] mission. |
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''[[Momentus Space]]'' develops different space tug versions focusing on large velocity changes over 1 km/s. Two demonstration missions of their [[Vigoride]] platform took place on 25 May 2022 amd 3 January 2023<ref name=sfn3123>{{cite web |url=https://spaceflightnow.com/2023/01/03/falcon-9-transporter-6-live-coverage/ |title=Live coverage: SpaceX counting down to first launch of 2023 |date=3 January 2023}}</ref> with key tests occurring through 2022.<ref>{{Cite web|last=September 2020|first=Mike Wall 10|title=Space tug to test out robotic arm on 2022 demonstration mission|url=https://www.space.com/momentus-space-tug-robotic-arm-demonstration-mission.html|access-date=2020-11-27|website=Space.com|date=10 September 2020|language=en}}</ref> Momentus Space became widely known in October 2020 when it reached a SPAC investment deal with Stable Road Acquisition Corp valuing the combined entity at over $1 billion.<ref>{{cite web |title=MOMENTUS TO BECOME PUBLIC THROUGH MERGER WITH STABLE ROAD ACQUISITION CORP. |url=https://www.sec.gov/Archives/edgar/data/1781162/000121390020030403/ea127854ex99-1_stableroad.htm |access-date=14 October 2021}}</ref> |
''[[Momentus Space]]'' develops different space tug versions focusing on large velocity changes over 1 km/s. Two demonstration missions of their [[Vigoride]] platform took place on 25 May 2022 amd 3 January 2023<ref name=sfn3123>{{cite web |url=https://spaceflightnow.com/2023/01/03/falcon-9-transporter-6-live-coverage/ |title=Live coverage: SpaceX counting down to first launch of 2023 |date=3 January 2023}}</ref> with key tests occurring through 2022.<ref>{{Cite web|last=September 2020|first=Mike Wall 10|title=Space tug to test out robotic arm on 2022 demonstration mission|url=https://www.space.com/momentus-space-tug-robotic-arm-demonstration-mission.html|access-date=2020-11-27|website=Space.com|date=10 September 2020|language=en}}</ref> Momentus Space became widely known in October 2020 when it reached a SPAC investment deal with Stable Road Acquisition Corp valuing the combined entity at over $1 billion.<ref>{{cite web |title=MOMENTUS TO BECOME PUBLIC THROUGH MERGER WITH STABLE ROAD ACQUISITION CORP. |url=https://www.sec.gov/Archives/edgar/data/1781162/000121390020030403/ea127854ex99-1_stableroad.htm |access-date=14 October 2021}}</ref> |
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=== Epic Aerospace === |
=== Epic Aerospace === |
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[[Epic Aerospace]]'s [[Chimera LEO 1]] launched on 3 January 2023.<ref name=sfn3123 /> |
[[Epic Aerospace]]'s [[Chimera LEO 1]] launched on 3 January 2023.<ref name=sfn3123 /> |
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=== Launcher === |
=== Launcher === |
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Reports surfaced circa June 15, 2021 of [[Launcher (company)|Launcher]]'s Orbiter space tug.<ref>{{Citation|title=Launcher to develop orbital transfer vehicle|date=15 June 2021|url=https://spacenews.com/launcher-to-develop-orbital-transfer-vehicle/|access-date=20 Nov 2021}}</ref> Launching on its own rocket as well as SpaceX’s Falcon 9 it provides 150 kilograms of payload, either 90 units of cubesat or else larger satellites using standard smallsat separation systems. With a chemical propulsion system using ethylene and nitrous oxide propellants it is capable of 500 meters per second of delta-v, more with additional propellant tanks. |
Reports surfaced circa June 15, 2021 of [[Launcher (company)|Launcher]]'s Orbiter space tug.<ref>{{Citation|title=Launcher to develop orbital transfer vehicle|date=15 June 2021|url=https://spacenews.com/launcher-to-develop-orbital-transfer-vehicle/|access-date=20 Nov 2021}}</ref> Launching on its own rocket as well as SpaceX’s Falcon 9 it provides 150 kilograms of payload, either 90 units of cubesat or else larger satellites using standard smallsat separation systems. With a chemical propulsion system using ethylene and nitrous oxide propellants it is capable of 500 meters per second of delta-v, more with additional propellant tanks.<ref>{{cite web |title=LAUNCHER ORBITER|url=https://launcherspace.com/orbiter|access-date =20 Nov 2021}}</ref> Orbiter SN1 launched on 3 January 2023.<ref name=sfn3123 /> |
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=== Skykraft === |
=== Skykraft === |
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=== Mission Extension Vehicle === |
=== Mission Extension Vehicle === |
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{{Main|Mission Extension Vehicle}} |
{{Main|Mission Extension Vehicle}} |
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In 2011 ViviSat a joint project between U.S. Space and [[Alliant Techsystems|ATK]] proposed the [[Mission Extension Vehicle]]. In 2016 ViviSat was dissolved when U.S. Space declared bankruptcy and ATK merged with [[Orbital Sciences Corporation|Orbital Science Corporation]] to form [[Orbital ATK]]. In 2017 Orbital ATK got the go ahead from the [[Federal Communications Commission|FCC]] to begin development of the spacecraft with new partner [[ |
In 2011 ViviSat a joint project between U.S. Space and [[Alliant Techsystems|ATK]] proposed the [[Mission Extension Vehicle]]. In 2016 ViviSat was dissolved when U.S. Space declared bankruptcy and ATK merged with [[Orbital Sciences Corporation|Orbital Science Corporation]] to form [[Orbital ATK]]. In 2017 Orbital ATK got the go ahead from the [[Federal Communications Commission|FCC]] to begin development of the spacecraft with new partner [[Northrop Grumman]] who was developing a tug of their own. In June 2018, both companies pooled their resources and merged to form a new company called [[Northrop Grumman Innovation Systems]]. On 9 October 2019 the first of these tugs MEV-1 was launched from [[Baikonur Cosmodrome]] in [[Kazakhstan]] on a [[Proton-M]] rocket. In February 2020, MEV-1 successfully docked with [[Intelsat 901]] and returned it to geosynchronous orbit, allowing it to continue operating 4 years past its service life. MEV-1 will continue to maintain this position for a 5-year period, after which it will move the satellite back into a [[graveyard orbit]] for retirement. MEV-2 was launched 15 August 2020 with [[Galaxy (satellite)|Galaxy 30]] on an [[Ariane 5]] to perform a similar maneuver with [[Intelsat 10-02|Intelsat-1002]].<ref>{{Cite web|title=Intelsat-901 satellite, with MEV-1 servicer attached, resumes service|url=https://spacenews.com/intelsat-901-satellite-with-mev-1-servicer-attached-resumes-service/|date=2020-04-17|website=SpaceNews.com|language=en-US|access-date=2020-05-20}}</ref><ref>{{Cite web|title=Intelsat 901 Satellite Returns to Service Using Northrop Grumman's Mission Extension Vehicle|url=https://news.northropgrumman.com/news/releases/intelsat-901-satellite-returns-to-service-using-northrop-grummans-mission-extension-vehicle|website=Northrop Grumman Newsroom|language=en|access-date=2020-05-20}}</ref><ref>{{Cite web|last=August 2020|first=Elizabeth Howell 15|title=Ariane 5 rocket launches robotic space tug into orbit alongside 2 communications satellites|url=https://www.space.com/ariane-5-rocket-mev-2-space-tug-satellite-launch-success.html|access-date=2020-08-20|website=Space.com|date=15 August 2020|language=en}}</ref> |
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=== Artemis Transfer Stages === |
=== Artemis Transfer Stages === |
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=== Skyrora Space Tug === |
=== Skyrora Space Tug === |
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British launch vehicle manufacturer [[ |
British launch vehicle manufacturer [[Skyrora]] shared details of their Space Tug<ref>{{Citation|title=Skyrora Space Tug|url=https://www.skyrora.com/post/skyrora-s-space-tug-gives-space-sustainability-dream-a-lift}}</ref> in 2021, revealing it to be usable as the third stage of their Skyrora XL rocket. The company shared a video of the Space Tug undergoing a live test in January 2021. As well as being able to move a satellite from one orbit to another the Space Tug can perform a number of in-space operations including space debris removal. |
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=== Exotrail SpaceVan Orbital Transfer Vehicle === |
=== Exotrail SpaceVan Orbital Transfer Vehicle === |
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[[:fr:Exotrail|Exotrail]] unveils the April 12, 2022 of Orbital Transfer Vehicle, SpaceVan.<ref>{{Citation|title=Exotrail Unveils Orbital Transfer Vehicle, SpaceVan|date=12 April 2022|url=https://www.satellitetoday.com/in-space-services/2022/04/12/exotrail-unveils-orbital-transfer-vehicle-spacevan/|access-date=26 June 2022}}</ref> The debut SpaceVan mission will launch onboard a Falcon 9 rideshare mission in October 2023 following a launch service agreement signed between Exotrail and SpaceX. At least three subsequent missions are planned throughout 2024 onboard multiple different launchers. |
[[:fr:Exotrail|Exotrail]] unveils the April 12, 2022 of Orbital Transfer Vehicle, SpaceVan.<ref>{{Citation|title=Exotrail Unveils Orbital Transfer Vehicle, SpaceVan|date=12 April 2022|url=https://www.satellitetoday.com/in-space-services/2022/04/12/exotrail-unveils-orbital-transfer-vehicle-spacevan/|access-date=26 June 2022}}</ref> The debut SpaceVan mission will launch onboard a Falcon 9 rideshare mission in October 2023 following a launch service agreement signed between Exotrail and SpaceX. At least three subsequent missions are planned throughout 2024 onboard multiple different launchers.<ref>{{cite web |title=SpaceVan - Fast and flexible constellation deployment services|url=https://exotrail.com/transportation-services/|access-date =26 June 2022}}</ref><ref>{{cite web |url=https://spacenews.com/exotrail-wins-contract-to-demonstrate-orbital-transfer-for-french-agencies/ |title=ExoTrail wins contract to demonstrate orbital transfer for French agencies |date=11 October 2022}}</ref> |
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=== Impulse Space's Mira === |
=== Impulse Space's Mira === |
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=== Firefly Aerospace === |
=== Firefly Aerospace === |
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[[ |
[[Firefly Aerospace#In Space Transportation|Firefly Aerospace]] is developing an OTV called the Space Utility Vehicle that will fly on its Alpha rocket.<ref>{{cite web |url=https://spacenews.com/launcher-to-develop-orbital-transfer-vehicle/ |title=Launcher to develop orbital transfer vehicle |date=15 June 2021}}</ref> |
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=== Space Machine's Optimus === |
=== Space Machine's Optimus === |
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In October 2022 [[Space Machines]] announced a deal with [[Arianespace]] to produce [[Optimus-1]] a |
In October 2022 [[Space Machines]] announced a deal with [[Arianespace]] to produce [[Optimus-1]] a 270 kg space tug aiming to launch on SpaceX [[Falcon 9]] in Q2 2023.<ref>[[cite web |url=https://spacenews.com/arianespace-partners-with-australian-space-tug-startup/ |title=Arianespace partners with Australian space tug startup |date=31 October 2022}}</ref> |
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=== Exolaunch's Reliant tugs === |
=== Exolaunch's Reliant tugs === |
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[[Exolaunch]] Reliant tugs have standard and pro versions. Testing and flight qualification was planned to begin in 2022 on SpaceX's rideshare missions.<ref>{{cite web |url=https://exolaunch.com/news_54 |title=Exolaunch Introduces Eco Space Tug Program |date=12 April 2021 |access-date=13 January 2023}}</ref><ref>{{cite web |rl=https://www.exolaunch.com/reliant#1 |title=Reliant | |
[[Exolaunch]] Reliant tugs have standard and pro versions. Testing and flight qualification was planned to begin in 2022 on SpaceX's rideshare missions.<ref>{{cite web |url=https://exolaunch.com/news_54 |title=Exolaunch Introduces Eco Space Tug Program |date=12 April 2021 |access-date=13 January 2023}}</ref><ref>{{cite web |rl=https://www.exolaunch.com/reliant#1 |title=Reliant |access-date=13 January 2023}}</ref> |
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==See also== |
==See also== |
Aspace tug is a type of spacecraft used to transfer spaceborne cargo from one orbit to another orbit with different energy characteristics. An example would be moving a spacecraft from a low Earth orbit (LEO) to a higher-energy orbit like a geostationary transfer orbit, a lunar transfer, or an escape trajectory.
The term is often used to refer to reusable, space-based vehicles. Some previously proposed or built space tugs include the NASA 1970s STS proposal[1] or the proposed Russian Parom, and has sometimes been used to refer to expendable upper stages,[1] such as Fregat,[2]orSpaceflight Industries Sherpa.
The space tug was first envisioned in the post-World War II era as a support vehicle for a permanent, Earth-orbiting space station. It was used by science fiction writer Murray Leinster as the title of a novel published in 1953 as the sequel to Space Platform, another novel about such a space station. [3]
Spaceflight Inc. developed SHERPA, which builds upon the capabilities of the Spaceflight Secondary Payload System (SSPS) by incorporating propulsion and power generation subsystems, which creates a propulsive tug dedicated to maneuvering to an optimal orbit to place secondary and hosted payloads. The maiden flight of two separate unpropelled variants of the dispenser was in December 2018 on a Falcon 9 rocket. This flight deployed 64 small satellites from 17 countries.[4][5]
D-Orbit, an Italian space logistics and transportation company, developed the InOrbit NOW ION Satellite Carrier. The first launch occurred on 3 September 2020 on a Vega rocket, but subsequent launches have all been on SpaceX Falcon 9 Transporter missions. On January 3, 2023 the company launched its seventh and eighth vehicles, Second star to the right, aboard the SpaceX Transporter-6 Mission.[6]
LDPE is based on a Northrop Grumman payload adapter used to help attach the upper stage to the main satellite in addition to hosting a few slots for other smallsats. However, the entire system is powered by the ESPAStar satellite bus, which is in charge of power consumption and distribution as well as propulsion making it a fully operational space tug capable of deploying different payloads at different orbits. ESPAStar has the capability to host 6 smallsat payloads totaling 1,920 kg (4,230 lb). The system is also able to provide 400 meters per second of delta-V via a Hydrazine propulsion module.[7]
The first LDPE was launched on 7 December 2021 on an Atlas V rocket as part of the STP-3 mission. The second launch was on 1 November 2022 on a Falcon Heavy rocket as part of the USSF-44 mission. A third mission is planned for 12 January 2023 on USSF-67 mission.
In December 2021 - January 2022, China's Shijian-21 space debris mitigation satellite has docked with the defunct Beidou-2 G2 navigation satellite to drastically alter its geostationary orbit, demonstrating capabilities only previously exhibited by the United States.[8]
Momentus Space develops different space tug versions focusing on large velocity changes over 1 km/s. Two demonstration missions of their Vigoride platform took place on 25 May 2022 amd 3 January 2023[9] with key tests occurring through 2022.[10] Momentus Space became widely known in October 2020 when it reached a SPAC investment deal with Stable Road Acquisition Corp valuing the combined entity at over $1 billion.[11]
Epic Aerospace's Chimera LEO 1 launched on 3 January 2023.[9]
Reports surfaced circa June 15, 2021 of Launcher's Orbiter space tug.[12] Launching on its own rocket as well as SpaceX’s Falcon 9 it provides 150 kilograms of payload, either 90 units of cubesat or else larger satellites using standard smallsat separation systems. With a chemical propulsion system using ethylene and nitrous oxide propellants it is capable of 500 meters per second of delta-v, more with additional propellant tanks.[13] Orbiter SN1 launched on 3 January 2023.[9]
Skykraft's OTV first launched on 3 January 2023 on SpaceX's Falcon 9 Transporter-6 mission.[9]
A reusable space tug was studied by NASA in the late 60s and early 70s as part of a reusable Space Transportation System (STS). This consisted of a basic propulsion module, to which a crew module or other payload could be attached. Optional landing legs could be added to land payloads on the surface of the Moon.[1] This, along with all other elements of STS except the Space Shuttle, was never funded after cutbacks to NASA's budget during the 1970s in the wake of the Apollo program.[14]
The Shuttle program filled the role of high-energy orbital transfer by the development[when?] of a solid-fueled single-stage Payload Assist Module and two-stage Inertial Upper Stage.[citation needed]
A more powerful liquid hydrogen fueled Centaur-G stage was developed for use on the Shuttle, but was cancelled as too dangerous after the Challenger disaster.[15]
NASA studied another space tug design, termed the Orbital Maneuvering Vehicle (OMV), along with its plans for Space Station Freedom. The OMV's role would have been a reusable space vehicle that would retrieve satellites, such as Hubble, and bring them to Freedom for repair or retrieval, or to service uncrewed orbital platforms.[16][17] In 1984, the Orbital Maneuvering Vehicle (OMV) preliminary design studies were initiated through a competitive award process with systems studies conducted by TRW, Martin Marietta Aerospace, and LTV Corporation.[18]
The Russian RKK Energia corporation proposed a space tug named Parom in 2005[19] which could be used to ferry both the proposed Kliper crew vehicle or uncrewed cargo and fuel resupply modules to ISS.[20] Keeping the tug in space would have allowed for a less massive Kliper, enabling launch on a smaller booster than the original Kliper design.
The VASIMR electric plasma rocket could be used to power a high-efficiency space tug, using only 9 tons of Argon propellant to make a round trip to the Moon, delivering 34 tons of cargo from Low Earth Orbit to low lunar orbit. As of 2014[update], Ad Astra Rocket Company had put forward a concept proposal to utilize the technology to make a space tug.[21][needs update]
Indian Space Research Organisation has built an upper stage called PAM-G (Payload Assist Module for GSLV) capable of pushing payloads directly to MEOorGEO orbits from low Earth orbits.[22][23] PAM-G is powered by hypergolic liquid motor with restart capability, derived from PSLV's fourth stage. As of 2013, ISRO has realized the structure, control systems, and motors of PAM-G and has conducted hot tests.[24][25][26] PAM-G would form the fourth stage of GSLV Mk2C launch vehicle,[27] sitting on top of GSLV's cryogenic third stage.
Lockheed Martin made a concept proposal to NASA in 2015 for a design called the Jupiter space tug, to be based on the designs of two earlier Lockheed Martin spacecraft—Mars Atmosphere and Volatile Evolution Mission and the Juno—as well as a robotic arm from MDA derived from technology used on Canadarm, the robotic arm technology previously used on the Space Shuttle. In addition to the Jupiter space tug itself, the Lockheed concept included the use of a new 4.4 m (14 ft)-diameter cargo transport module called Exoliner for carrying cargo to the ISS. Exoliner is based on the earlier (2000s) ESA-developed Automated Transfer Vehicle, and was to be jointly developed with Thales Alenia Space.[28][29][30] In the event, NASA did not agree to fund the Jupiter development, and Lockheed Martin is not developing the tug with private capital.
In 2011 ViviSat a joint project between U.S. Space and ATK proposed the Mission Extension Vehicle. In 2016 ViviSat was dissolved when U.S. Space declared bankruptcy and ATK merged with Orbital Science Corporation to form Orbital ATK. In 2017 Orbital ATK got the go ahead from the FCC to begin development of the spacecraft with new partner Northrop Grumman who was developing a tug of their own. In June 2018, both companies pooled their resources and merged to form a new company called Northrop Grumman Innovation Systems. On 9 October 2019 the first of these tugs MEV-1 was launched from Baikonur CosmodromeinKazakhstan on a Proton-M rocket. In February 2020, MEV-1 successfully docked with Intelsat 901 and returned it to geosynchronous orbit, allowing it to continue operating 4 years past its service life. MEV-1 will continue to maintain this position for a 5-year period, after which it will move the satellite back into a graveyard orbit for retirement. MEV-2 was launched 15 August 2020 with Galaxy 30 on an Ariane 5 to perform a similar maneuver with Intelsat-1002.[31][32][33]
One of NASA's Artemis Program's proposed lunar landers is a partially reusable three stage design. One of its main elements is a transfer stage to move the lander from the Lunar Gateway's orbit to a low lunar orbit. Future versions should be able to return to the Gateway for refueling and reuse with another lander. Northrop Grumman has proposed building this transfer stage based on its Cygnus spacecraft. NASA chose to select a different approach in April 2021.[34]
Designed by Airbus, the Moon Cruiser is a conceptual lunar logistics vehicle based on the ATV and ESM that is proposed to be used to support the international Lunar Gateway. If funded, it would make up a part of ESA's contribution to the Lunar Gateway program. As of January 2020, it was in the early design process. Planned to be launched on the Ariane 6—with the capability to also be launched with US heavy launchers[35]: 1:56 —the vehicle is intended to be able to refuel lunar landers and deliver cargo to the Gateway. It will also be used[citation needed] to deliver the European ESPRIT module to the Gateway no earlier than 2025. It has also been proposed to turn the vehicle into a transfer stage for a lunar lander. Concepts for a lander variant of the vehicle exist but have not received funding.[36][37][35]
British launch vehicle manufacturer Skyrora shared details of their Space Tug[38] in 2021, revealing it to be usable as the third stage of their Skyrora XL rocket. The company shared a video of the Space Tug undergoing a live test in January 2021. As well as being able to move a satellite from one orbit to another the Space Tug can perform a number of in-space operations including space debris removal.
Exotrail unveils the April 12, 2022 of Orbital Transfer Vehicle, SpaceVan.[39] The debut SpaceVan mission will launch onboard a Falcon 9 rideshare mission in October 2023 following a launch service agreement signed between Exotrail and SpaceX. At least three subsequent missions are planned throughout 2024 onboard multiple different launchers.[40][41]
Demonstration orbital maneuvering and servicing vehicle, Mira is due to launch on SpaceX's Transporter-9 mission in October 2023.[42]
In January 2022, Atomos Space announced it had raised $5 million it had been trying to raise since 2020. Atomos plans to launch two of its Quark reusable orbital transfer vehicle in 2023.[43]
Firefly Aerospace is developing an OTV called the Space Utility Vehicle that will fly on its Alpha rocket.[44]
In October 2022 Space Machines announced a deal with Arianespace to produce Optimus-1 a 270 kg space tug aiming to launch on SpaceX Falcon 9 in Q2 2023.[45]
Exolaunch Reliant tugs have standard and pro versions. Testing and flight qualification was planned to begin in 2022 on SpaceX's rideshare missions.[46][47]
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Because a rising tide lifts all boats, NASA's flight rates during the 1960s had been buoyed powerfully by the agency's generous budgets. The OMB had no intention of granting such largesse during the 1970s.
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