# Cygnus CRS OA-7 > eighth cargo resupply mission to the International Space Station **Wikidata**: [Q20857894](https://www.wikidata.org/wiki/Q20857894) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Cygnus_OA-7) **Source**: https://4ort.xyz/entity/cygnus-crs-oa-7 ## Summary Cygnus CRS OA-7 was the eighth cargo resupply mission to the International Space Station (ISS), delivering essential supplies using a Cygnus Enhanced spacecraft. Also known as S.S. John Glenn, the mission launched on April 18, 2017, and was operated by Orbital ATK as part of the Commercial Resupply Services program. ## Key Facts - Cygnus CRS OA-7 was the eighth cargo resupply mission to the International Space Station. - The mission launched on April 18, 2017, at 15:11:26 UTC. - It utilized a Cygnus Enhanced model spacecraft, manufactured by Orbital ATK and Thales Alenia Space. - The spacecraft was named S.S. John Glenn, honoring the astronaut John Glenn. - It was operated by Orbital ATK and launched by United Launch Alliance using an Atlas V 401 launch vehicle. - The mission delivered 3376 kilograms of pressurized cargo and 83 kilograms of unpressurized cargo. - The spacecraft berthed with the International Space Station on April 22, 2017, at 12:39 UTC. - Cygnus CRS OA-7 unberthed from the ISS on June 4, 2017, at 11:05 UTC. - Its atmospheric entry occurred on June 11, 2017, at 17:08 UTC. - The mission was preceded by Cygnus CRS OA-5 and followed by Cygnus CRS OA-8E. ## FAQs ### Q: What was Cygnus CRS OA-7? A: Cygnus CRS OA-7 was the eighth cargo resupply mission to the International Space Station (ISS). It delivered supplies using a Cygnus Enhanced spacecraft as part of the Commercial Resupply Services program. ### Q: When did Cygnus CRS OA-7 launch? A: Cygnus CRS OA-7 launched on April 18, 2017, at 15:11:26 UTC. The launch took place from Cape Canaveral Space Launch Complex 41. ### Q: What spacecraft and launch vehicle were used for Cygnus CRS OA-7? A: The mission used a Cygnus Enhanced spacecraft, manufactured by Orbital ATK and Thales Alenia Space. It was launched into orbit by an Atlas V 401 rocket, provided by United Launch Alliance. ### Q: Who operated the Cygnus CRS OA-7 mission? A: The Cygnus CRS OA-7 mission was operated by Orbital ATK. It was part of the Commercial Resupply Services program. ### Q: What was the Cygnus CRS OA-7 mission named after? A: The Cygnus CRS OA-7 spacecraft was named S.S. John Glenn, in honor of the American astronaut John Glenn. ## Why It Matters The Cygnus CRS OA-7 mission played a crucial role in sustaining human presence aboard the International Space Station (ISS). As the eighth Commercial Resupply Services mission, it ensured the continuous delivery of vital supplies, scientific experiments, and equipment necessary for the astronauts' well-being and ongoing research. These resupply missions are fundamental to the long-term operation of the ISS, enabling groundbreaking scientific discoveries and technological advancements that benefit humanity. By successfully delivering over 3,300 kilograms of pressurized cargo, Cygnus CRS OA-7 directly supported the ISS crew and their scientific endeavors, demonstrating the reliability of commercial spaceflight for critical logistical support in low Earth orbit. The mission's naming, S.S. John Glenn, also served to honor a pivotal figure in American space history, connecting current space exploration efforts with its pioneering past. ## Notable For - **Named S.S. John Glenn**: The spacecraft was named in honor of John Glenn, the first American to orbit Earth. - **Eighth Commercial Resupply Mission**: It was the eighth mission under NASA's Commercial Resupply Services contract to the International Space Station. - **Cygnus Enhanced Model**: The mission utilized the Cygnus Enhanced spacecraft, a larger and more capable version of the Cygnus cargo vehicle. - **Atlas V 401 Launch Vehicle**: The mission was launched aboard an Atlas V 401 rocket, provided by United Launch Alliance. ## Body ### Overview Cygnus CRS OA-7 was the eighth cargo resupply mission to the International Space Station (ISS). It was part of the Commercial Resupply Services program, operated by Orbital ATK. The mission utilized a Cygnus Enhanced spacecraft, which was named S.S. John Glenn. ### Mission Details The mission's launch occurred on April 18, 2017, at 15:11:26 UTC, from Cape Canaveral Space Launch Complex 41. The spacecraft berthed with the International Space Station on April 22, 2017, at 12:39 UTC, attaching to the Unity module's nadir port. After completing its resupply duties, the spacecraft unberthed from the ISS on June 4, 2017, at 11:05 UTC. Its atmospheric entry, marking the end of the mission, took place on June 11, 2017, at 17:08 UTC. ### Spacecraft and Vehicle - **Spacecraft Model**: Cygnus Enhanced - **Manufacturer**: Orbital ATK, Thales Alenia Space - **Operator**: Orbital ATK - **Country of Origin**: United States, Italy - **Launch Vehicle**: Atlas V 401 (AV-070) - **Launch Contractor**: United Launch Alliance - **Total Launch Mass**: 7220 kilograms ### Cargo The mission carried a significant payload to the ISS: - **Pressurized Cargo**: 3376 kilograms - **Unpressurized Cargo**: 83 kilograms ### Naming The Cygnus spacecraft for this mission was named S.S. John Glenn, in honor of the American astronaut John Glenn. ### Identifiers - **COSPAR ID**: 2017-019A - **SCN**: 42681 - **Wikipedia Title**: Cygnus OA-7 - **Commons Category**: Cygnus 8 ### Mission Sequence - **Launch**: April 18, 2017, from Cape Canaveral Space Launch Complex 41. - **Berthing**: April 22, 2017, to the International Space Station (Unity module, nadir port). - **Unberthing**: June 4, 2017, from the International Space Station (Unity module, nadir port). - **Atmospheric Entry**: June 11, 2017. ### Related Missions - **Preceded by**: Cygnus CRS OA-5 (seventh cargo resupply mission) - **Followed by**: Cygnus CRS OA-8E (ninth cargo resupply mission) ```json { "@context": "https://schema.org", "@type": "Thing", "name": "Cygnus CRS OA-7", "description": "Eighth cargo resupply mission to the International Space Station", "sameAs": [ "https://www.wikidata.org/wiki/Q27891238", "https://en.wikipedia.org/wiki/Cygnus_OA-7" ], "additionalType": "https://schema.org/Spacecraft", "startDate": "2017-04-18T15:11:26Z", "endDate": "2017-06-11T17:08Z", "operator": { "@type": "Organization", "name": "Orbital ATK" }, "manufacturer": [ { "@type": "Organization", "name": "Orbital ATK" }, { "@type": "Organization", "name": "Thales Alenia Space" } ], "partOf": { "@type": "CreativeWorkSeries", "name": "Commercial Resupply Services" }, "launchVehicle": { "@type": "Vehicle", "name": "Atlas V 401" }, "namedAfter": { "@type": "Person", "name": "John Glenn" }, "locationCreated": { "@type": "Place", "name": "Cape Canaveral Space Launch Complex 41" }, "mass": { "@type": "QuantitativeValue", "value": 7220, "unitCode": "KGM", "description": "launch weight" }, "payload": [ { "@type": "Thing", "name": "Pressurized Cargo", "mass": { "@type": "QuantitativeValue", "value": 3376, "unitCode": "KGM" } }, { "@type": "Thing", "name": "Unpressurized Cargo", "mass": { "@type": "QuantitativeValue", "value": 83, "unitCode": "KGM" } } ], "event": [ { "@type": "Event", "name": "Rocket Launch", "startDate": "2017-04-18", "location": { "@type": "Place", "name": "Cape Canaveral Space Launch Complex 41" } }, { "@type": "Event", "name": "Berthing", "startDate": "2017-04-22T12:39Z", "location": { "@type": "Place", "name": "International Space Station" } }, { "@type": "Event", "name": "Unberthing", "startDate": "2017-06-04T11:05Z", "location": { "@type": "Place", "name": "International Space Station" } }, { "@type": "Event", "name": "Atmospheric Entry", "startDate": "2017-06-11T17:08Z" } ] } ## References 1. Jonathan's Space Report 2. [Source](http://www.orbitalatk.com/News-Room/release.asp?prid=261) 3. [Source](https://planet4589.org/space/jsr/back/news.738.txt) 4. [Source](https://planet4589.org/space/jsr/back/news.739.txt)