Orbiting Carbon Observatory 2

Orbiting Carbon Observatory-2
(OCO-2)

Artist depiction of OCO-2
Mission type	Climatology
Operator	NASA
COSPAR ID	2014-035A
SATCAT no.	40059
Website	JPL OCO-2 Mission
Mission duration	2 years (nominal) Elapsed: 10 years, 27 days
Spacecraft properties
Bus	LEOStar-2
Manufacturer	Orbital Sciences[1]
Launch mass	454 kg (1,001 lb)[1]
Dry mass	409 kg (902 lb)
Payload mass	131 kg (289 lb)[1]
Dimensions	Stowed: 2.12 × 0.94 m (6.96 × 3.08 ft)[1]
Power	815 W[1]
Start of mission
Launch date	2 July 2014, 09:56:23 (2014-07-02UTC09:56:23) UTC
Rocket	Delta II 7320-10C
Launch site	Vandenberg, SLC-2W
Contractor	United Launch Alliance
Orbital parameters
Reference system	Geocentric
Regime	Sun-synchronous
Perigee altitude	701.10 km (435.64 mi)
Apogee altitude	703.81 km (437.33 mi)
Inclination	98.2°
Period	98.82 minutes
Mean motion	14.57 rev / day
Velocity	7.5 km/s (4.7 mi/s)
Epoch	19 September 2016, 10:55:06 UTC[2]
Revolution no.	11,796
Main telescope
Type	Near-IR Cassegrain
Focal ratio	ƒ/1.8 [3]
Wavelengths	2.06 microns 1.61 microns 0.765 microns[1]
Instruments
3 grating spectrometers

Orbiting Carbon Observatory-2 (OCO-2) is an American environmental science satellite which launched on 2 July 2014. A NASA mission, it is a replacement for the Orbiting Carbon Observatory which was lost in a launch failure in 2009. It is the second successful high-precision (better than 0.3%) CO₂ observing satellite, after GOSAT.