June 2013


Jun 28, 2013Landsat 8 Data Processing and Archive System (DPAS)

The USGS is also developing the DPAS to manage the mission data transmitted from the LDCM observatory. The DPAS will be operated at EROS along with the rest of its Landsat data archive and it will consist of several subsystems: Storage and [...]

Jun 28, 2013Landsat 8 Mission Operations Center (MOC)

A flight operations team (FOT) will operate two computer systems within the MOC, the Collection Activity Planning Element (CAPE) and the Mission Operations Element (MOE). The CAPE will plan science data collection by building activity requests [...]

ground system logo 2
Jun 28, 2013Landsat 8 Ground System

The Landsat 8 Ground System includes all of the ground-based assets needed to operate the Landsat 8 observatory. The primary components of the Ground System are the Mission Operations Element, Collection Activity Planning Element, Ground Network [...]

Relative Spectral Response
Jun 28, 2013Spectral Response of the Operational Land Imager In-Band, Band-Average Relative Spectral Response

The band-average relative spectral radiance responses of the Operational Land Imager (OLI) are provided.

OLI prelaunch signal-to-noise ratio
Jun 28, 2013Pre-launch OLI Performance

BATC has conducted robust testing of OLI performance in accordance with their proposal and contract. These prelaunch tests indicate that OLI performance meets specification with requirements exceeded in most cases.

drawing of OLI
Jun 28, 2013OLI Design

< OLI Requirements Pre-launch OLI Performance >   The OLI is a push broom sensor employing a focal plane with long arrays of photosensitive detectors (Irons & Dwyer, 2010). A four-mirror anastigmatic telescope focuses incident Read more [...]

Jun 28, 2013OLI Requirements

< Operational Land Imager (OLI) OLI Design >   The OLI requirements specified a sensor that collects image data for nine spectral bands with a spatial resolution of 30 m (15 m panchromatic band) over a 185 km swath from the nominal 705 km [...]

TIRS telescope
Jun 27, 2013Spectral Response of the Thermal Infrared Sensor

< TIRS Design   In-Band, Band-Average Relative Spectral Response The band-average relative spectral radiance responses of the Thermal Infrared Sensor (TIRS) are provided here. These responses are based on measurements of the individual Read [...]

TIRS cryocooler
Jun 27, 2013TIRS Design

< TIRS Requirements TIRS Relative Spectral Response >   Like OLI, TIRS is also a push broom sensor employing a focal plane with long arrays of photosensitive detectors (Fig. 6). A four-element refractive telescope focuses an f/1.64 Read [...]

Jun 27, 2013TIRS Requirements

< Thermal Infrared Sensor TIRS Design >   TIRS requirements are specified in a manner similar to the OLI requirements. The specifications require TIRS to collect image data for two thermal infrared spectral bands with a spatial resolution [...]

launch vehicle assembly
Jun 19, 2013Launch Vehicle

The LDCM observatory will launch from Space Launch Complex-3E at Vandenberg Air Force Base aboard an Atlas V 401 launch vehicle built by the United Launch Alliance (ULA). This rocket is an evolved expendable launch vehicle capable of placing a [...]

Thermal Infrared Sensor (TIRS)
Jun 19, 2013Thermal Infrared Sensor (TIRS)

TIRS Requirements > The Thermal Infrared Sensor (TIRS) measures land surface temperature in two thermal bands with a new technology that applies quantum physics to detect heat. TIRS was added to the satellite mission when it became clear that [...]

Operational Land Imager (OLI)
Jun 19, 2013Operational Land Imager (OLI)

OLI Requirements > The Operational Land Imager (OLI), built by the Ball Aerospace & Technologies Corporation, measures in the visible, near infrared, and short wave infrared portions of the spectrum. Its images have 15-meter (49 ft.) [...]

Spacecraft Design
Jun 19, 2013Spacecraft Design

< Spacecraft   The spacecraft will supplies power, orbit and attitude control, communications, and data storage for OLI and TIRS. The spacecraft consists of the mechanical subsystem (primary structure and deployable mechanisms), command [...]

Landsat 8 spacecraft
Jun 14, 2013Spacecraft

Spacecraft Design > Landsat 8 consist of two major segments: the observatory and the ground system. The observatory consists of the spacecraft bus and its payload of two Earth observing sensors, the Operational Land Imager (OLI) and the Thermal [...]