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  • Instrument - Photon/Optical Detectors

    Instrument - Photon/Optical Detectors

    Operational Land Imager (OLI)

    The OLI, on board Landsat 8, measures in the visible, near infrared, and short wave infrared.

  • Mission - Third Party Missions

    Mission - Third Party Missions

    Landsat 8

    Landsat 8 is an Earth-imaging satellite from NASA which launched in 2013. The Landsat programme provides a global archive of satellite imagery and is managed and operated by the U.S. Geological Survey (USGS).

  • Mission - Third Party Missions

    Mission - Third Party Missions

    Landsat Series

    The Landsat series is the world's longest running system of satellites for moderate-resolution optical remote sensing for land, coastal areas and shallow waters.

  • Instrument - Photon/Optical Detectors

    Instrument - Photon/Optical Detectors

    Product Anomalies

    and provides up-to-date information and details regarding known issues and current artifacts. TIRS Anomaly Image quality issues have be...

  • Instrument - Photon/Optical Detectors

    Instrument - Photon/Optical Detectors

    Operational Land Imager (OLI) Overview

    Sensor Modes Landsat 8 operates in the EARTH OBSERVATION mode for nominal routine operations. The satellite acquires all day-lit descending land images between 57° North and 57° South, and on average 90% day-lit descending land images at higher latitudes; combined to approximately 725 images per day. Night, ocean, and day-lit ascending images are only acquired by special request. Almost all imaging is performed with both the OLI and TIRS instruments. The exception is for some night data, acquired for TIRS calibration and therefore with only the TIRS sensor (identified by a "T" in the product filename). If either the TIRS or OLI is not available, the available sensor that acquired is noted in the filename. Off-nadir imaging is currently only done at night for TIRS-calibration purposes when it does not impact Nadir day-time imaging; it must be approved by the Data Acquisition Manager, as must the special requests for night, ocean, and day-lit ascending imaging. Having said this, Landsat is not a tasking mission hence; off-nadir daytime acquisitions are mostly resisted since they cost nearly an entire orbit of nadir data. Related Links Learn more about the OLI instrument: OLI on the eoPortal OLI on USGS website

  • Document - Technical Note

    Document - Technical Note

    Landsat 4-5 TM Image Assessment System Radiometric Algorithm Theoretical Basis Document

    do not contain the 0255 Digital Number (DN) fill pattern discussed in this Algorithm Theoretical Basis Document (ATBD), nor are there current plans to implement a fill pattern. The IAS Drop Line

  • Document - Technical Note

    Document - Technical Note

    ACS WILMA Format

    User Header. It is the number of files, numbered from DLT start, preceding the User Header file in current Transcription Area. 7 File Number of the Pass Id. Header. It is the number of files,

  • Document - General Reference

    Document - General Reference

    BIOMASS-Report-for-Mission-Selection-An-Earth-Explorer-to-observe-forest-biomass.pdf

    provides the justification for the mission, set within the post2018 time frame, and includes a review of the current scientific understanding of the issue in question while identifying the potential

  • Document - Product Cal/Val Plan/Report

    Document - Product Cal/Val Plan/Report

    Landsat-Product-Radiometric-Calibration.pdf

    1/7 Purpose of this document This document aims at explaining to endusers radiometric calibration procedures currently used for processing of ESA TM/ETM+ data before dissemination. After

  • Document - Technical Note

    Document - Technical Note

    Landsat 7 ETM+ Image Assessment System Radiometric Algorithm Theoretical Basis Document

    optics, although the lamps are nearly identical in terms of current and voltage ratings, (3) the control circuit utilizes the regulated voltage mode for both primary and backup control, whereas TM used

  • Document - Technical Note

    Document - Technical Note

    Landsat 7 ETM Image Assessment System Radiometric Algorithm Theoretical Basis Document

    optics, although the lamps are nearly identical in terms of current and voltage ratings, (3) the control circuit utilizes the regulated voltage mode for both primary and backup control, whereas TM used

  • Document - Technical Note

    Document - Technical Note

    Landsat-1-3-MSS-Standard-Interface-Document.pdf

    Characteristics (Cont'd) Item ELECTRICAL Input Voltages Current: Regulated: SYSTEM OUTGAS Unregulated: (Scan mirror) Power: SYSTENi OUTGAS Video Data Signal: Number of Channels

  • Document - General Reference

    Document - General Reference

    CoReH2O-Report-for-Mission-Selection-An-Earth-Explorer-to-observe-snow-and-ice.pdf

    post2018 time frame, and includes a review of the current scientific understanding of the issue in question while identifying the potential ‘delta’ that the mission could provide. — Chapter

  • Document - Technical Note

    Document - Technical Note

    Landsat 7 Data Format Control Book Volume IV - Wideband Data

    The counter will roll over when it 23007702–IV–L 11 June 1999 3–7 exceeds 16,777,215, irregardless of whether this occurs on scene boundaries or in the middle of a current scene. 3.1.2.2.1.5

  • Document - Technical Note

    Document - Technical Note

    Landsat 7 ETM+ Image Assessment System Geometric Algorithm Theoretical Basis Document

    Version 1.0 The steps include: 1. Checking the current gyro value against a tolerance 2. Doing a forward prediction for each point using the two previous points and comparing this predicted

  • Document - Technical Note

    Document - Technical Note

    Landsat 7 ETM Image Assessment System Geometric Algorithm Theoretical Basis Document

    Version 1.0 The steps include: 1. Checking the current gyro value against a tolerance 2. Doing a forward prediction for each point using the two previous points and comparing this predicted

  • Document - Technical Note

    Document - Technical Note

    Landsat-4-Multispectral-scanner-MSS-subsystem-radiometric-characterization.pdf

    (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Currently Used in MIPS 64

  • Document - Technical Note

    Document - Technical Note

    Landsat 1-5 MSS Image Assessment System Radiometric Algorithm Description Document

    earlier media and computers. All current formats are BSQ. LSIAS07 Version 1.0 4 Current “Level 0” formats used as input into IAS 10.5 and LPGS 11.5 (re leased in the summer 2011) fall into four

  • Document - Product Specifications

    Document - Product Specifications

    LANDSAT 7 Enhanced Thematic Mapper Plus (ETM+) Level 1 Data Format Control Book

    9 Table 27. Current NLAPS Naming Convention Details for AtSatellite Reflectance Products.................................................................................................................

  • Document - Technical Note

    Document - Technical Note

    ngEO tailoring for Landsat

    Types Considering the current catalogue population, the following table reports the Landsat product types with their relevant mission/sensor/sensor mode/product type combinations. For each combination