Landsat-8 L1

About Landsat 8 Level 1 Data

Mission Information

Landsat 8 is the most recently launched Landsat satellite (provided by NASA/USGS) and carries the Operational Land Imager (OLI) and the Thermal Infrared Sensor (TIRS) instruments, with 9 optical and 2 thermal bands. These two sensors provide seasonal coverage of the global landmass. We offer access to both Level 1 data from Landsat Collection 1 and 2. The former will be deprecated in the future. Learn more about Level-1 from Landsat Collection 1 here and for Collection 2 here.

Basic Facts

Spatial resolution15 m for the panchromatic band and 30 m for the rest (the thermal bands is re-sampled from 100 m)
SensorOperational Land Imager (OLI) with 9 spectral bands and Thermal Infrared Sensor (TIRS) with 2 thermal bands
Revisit time16 days
Spatial coverageWhole globe
Data availabilitySince February 2013
Common usage/purposeVegetation monitoring, land use, land cover maps and monitoring of changes.

Accessing Data

To access data you need to send a POST request to our process API. The requested data will be returned as the response to your request. Each POST request can be tailored to get you exactly the data you require. To do this requires setting various parameters which depend on the collection you are querying. This chapter will help you understand the parameters for Landsat 8 Level 1 data. For an overview of all API parameters see the API Reference.

Endpoint Locations

ServiceNotes coverage since February 2013

Data type identifier: landsat-8-l1c

Level 1 from Landsat Collections 1 and 2 can be accessed using the identifiers landsat-8-l1c (previously L8L1C) and landsat-ot-l1[1] (previously LOTL1), respectively, as the value of the parameter in your API requests. This is mandatory and will ensure you get the correct data.

Collection 2 (landsat-ot-l1) is currently in the preview stage and might thus change.

[1]:landsat-ot-l1 stands for Landsat OLI-TIRS Level 1.

Filtering Options

This chapter will explain the object of the process API.


Sets the order of overlapping tiles from which the output result is mosaicked. Note that tiles will in most cases come from the same orbit/acquisition. The tiling is done by USGS for easier distribution.

mostRecentselected by default. The pixel will be selected from the tile, which was acquired most recentl
leastRecentsimilar to mostRecent but in reverse order
leastCCpixel is selected from tile with the least cloud coverage metadatanote that "per tile" information is used here, each covering about a 31,100 sq. km area, so this information is only an estimate.


Sets the upper limit for cloud coverage in percent based on the precomputed cloud coverage estimate for each tile as present in the tile metadata. Satellite data will therefore not be retrieved for tiles with a higher cloud coverage estimate. For example, by setting the value to 20, only tiles with at most 20% cloud coverage will be used. Note that this parameter is set per tile and might not be directly applicable to the chosen area of interest.


Selects product tiers.

TIER_1selects Tier 1 products
TIER_1_AND_RTselects Tier 1 and Real-Time products
ALL_TIERSselected by default. selects Real-Time, Tier 1 and Tier 2 products

Processing Options

This chapter will explain the object of the process API.

upsamplingThe same as for S2L1C.
downsamplingThe same as for S2L1C.

Available Bands and Data

Information in this chapter is useful when defining input object in evalscript. Any string listed in the column Name can be an element of the input.bands array in your evalscript.

B01Ultra Blue (443 nm)30m
B02Blue (482 nm)30m
B03Green (561.5 nm)30m
B04Red (654.5 nm)30m
B05Near Infrared (NIR) (865 nm)30m
B06Shortwave Infrared (SWIR) 1 (1608.5 nm)30m
B07Shortwave Infrared (SWIR) 2 (2200.5 nm)30m
B08Panchromatic ( 589.5 nm)15m
B09Cirrus (1373.5 nm)30m
B10Thermal Infrared (TIRS) 1(10895 nm)30m [1]
B11Thermal Infrared (TIRS) 2 (12005 nm)30m [1]
BQAQuality Assessment band (QA)30m
QA_RADSATRadiometric Saturation and Terrain Occlusion QA Band30mOnly in landsat-ot-l1
VAAView (sensor) Azimuth Angle30mOnly in landsat-ot-l1
VZAView (sensor) Zenith Angle30mOnly in landsat-ot-l1
SAASun Azimuth Angle30mOnly in landsat-ot-l1
SZASun Zenith Angle30mOnly in landsat-ot-l1
dataMaskThe mask of data/no data pixels (more).N/A [2]

[1]: TIRS bands are acquired at 100 meter resolution, but are resampled to 30 meter in delivered data product (source).
[2]: dataMask has no source resolution as it is calculated for each output pixel.


The data values for each band in your custom script are presented in the default units as specified here. In case more than one unit is available for a given band, you may optionally set the value of input.units in your evalscript setup function to one of the options. Doing so will present data in that unit. The Source Format specifies how and with what precision the digital numbers from which the unit is derived are encoded. The Typical Range indicates what values are common for a given band and unit, however outliers can be expected.

BandsUnitSource FormatTypical RangeNotes
Optical bands
B01 - B09
REFLECTANCE [1]UINT160 - 0.4Higher values in infrared bands. Reflectance values can easily be above 1.
Thermal bands
KELVIN [2]UINT16250 - 320Brightness temperature of roughly -20 to +50 C. Can reach outside this range in extreme environments.
BQAN/AUINT16bit-packed combination (info here)For Collection 1, the values can be obtained using the utility function named decodeLs8Qa (see). For Collection 2, use the function named decodeL8C2Qa in the similar way (see).
QA_RADSATN/AUINT16bit-packed combination (info here
Angle bandsDegreesINT16
dataMaskN/ABoolean0 - no data
1 - data

[1]: Top of the Atmosphere Reflectance, which is obtained using the scene center sun angle.
[2]: Top of the Atmosphere Brightness Temperature.

Scenes Object

scenes object stores metadata. An example of metadata available in scenes object for Sentinel-5p L2 when mosaicking is ORBIT:

Property nameValue

Properties of a scenes object can differ depending on the selected mosaicking and in which evalscript function the object is accessed. Working with metadata in evalscript user guide explains all details and provide examples.

Catalog API Capabilities

To access Landsat 8 product metadata you need to send search request to our Catalog API. The requested metadata will be returned as JSON formatted response to your request.

Endpoint Locations

ServiceNotes coverage since February 2013

Global coverage since February 2013

Collection identifier: landsat-ot-l1

Query extension

  • eo:cloud_cover cloud cover percentage

Distinct extension

  • date