Cygnus CRS-16 (NG-16, S.S. Ellison Onizuka)

Designation	47xx / 21072A
Launch date	10 Aug 2021 - UTC
Launch site	MARS, LA-0A (MARS= Mid Atlantic Regional Spaceport).
Launch vehicle	Antares 230+
Mission	ISS cargo (8050 kg)
Earth orbit:
Perigee / Apogee	170 x 320? km
Inclination	51.7 deg
Period	min

Berthing date - time	12 Aug 2021 - 13:42 UTC
Target spacecraft/port	ISS/Unity nadir port
Docking orbit:
- Perigee / Apogee	km
- Inclination	°
- Period	min
Unberthed date - time	20 Nov 2021 - 13:40 UTC Canadarm-2 unberthed the Cygnus
Deorbit burn date - time
Destroyed date - time	UTC
Flight Duration (dd:hh:min)	days
Nbr orbits

Prime manufacturer	Orbital Sciences Corporation (OSC)
Platform
Operator	NASA
Mass at launch	kg
Cargo Mass	kg
Basic shape
Dimension (m)
Equipment	2 deployable solar arrays
Solar array
Stabilization
Propulsion	IHI BT-4
DC power

Orbital Sciences CYGNUS CRS Flight 16, is the 17 flight of the Orbital ATK unmanned resupply spacecraft Cygnus and its 15 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.

On Aug 10, 2021 Northrop Grumman launched the Cygnus NG-16 cargo ship S.S. Ellison Onizuka, on an Antares 230+ rocket from the Mid-Atlantic Regional Spaceport at Wallops Island, Virginia. The Onizuka arrived at ISS on Aug 12, with Canadarm-2 grappling it at 1007 UTC and berthing it on the nadir Unity CBM at 1342 UTC. NG-16 carries another IROSA mod kit for installation on the truss. PIRPL, an infrared sensor payload from the US military Space Development Agency and Missile Defense Agency, is attached externally to the Cygnus PCM and will be operated after Cygnus leaves the ISS.
On Nov 20, 2021 at 1340 UTC Canadarm-2 unberthed the Cygnus, S.S. Ellison Onizuka, from the Unity nadir port and released it into orbit at 1601 UTC. As of Nov 26, 2021 the Onizuka remained in a 456 x 464 km x 51.6 deg orbit.

Cygnus NG-16 launch. Credit: #411

Berthing cancel Houston. Credit: #411b

Ref.: #7(JR796,800), #411, #411b - update: 19.01.22