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Track CYGNUS OA-7 now!
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CYGNUS OA-7 is classified as:

NORAD ID: 42681
Int'l Code: 2017-019A
Perigee: 407.0 km
Apogee: 416.6 km
Inclination: 51.6 °
Period: 92.7 minutes
Semi major axis: 6782 km
RCS: Unknown
Launch date: April 18, 2017
Source: United States (US)

CYGNUS OA-7, also known as Orbital Sciences CRS Flight 7, is the eighth flight of the Orbital ATK unmanned resupply spacecraft Cygnus and its seventh flight to the International Space Station under the Commercial Resupply Services contract with NASA. Orbital and NASA jointly developed a new space transportation system to provide commercial cargo resupply services to the International Space Station (ISS). Under the Commercial Orbital Transportation System (COTS) program, then Orbital Sciences designed and built Antares, a medium-class launch vehicle; Cygnus, an advanced maneuvering spacecraft, and a Pressurized Cargo Module which is provided by Orbital's industrial partner Thales Alenia Space. The OA-7 is named the S.S. John Glenn in honor of astronaut and senator John Glenn, the first US astronaut to orbit the Earth on Mercury 6 and the oldest to go to space on STS-95.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 42681U 17019A   17112.60826211 +.00001925 +00000-0 +36338-4 0  9991
2 42681 051.6431 315.3306 0007054 084.7217 308.3471 15.54143185053112
Source of the keplerian elements: AFSPC