SPOT
SPOT 6/7 is a satellite constellation providing very high-resolution optical imagery and is owned by Airbus. It is now possible to purchase, order and access SPOT data using Sentinel Hub (SH).
About SPOT data
Mission information
SPOT 6/7 is composed of two twin satellites orbiting the Earth 180° apart. The satellites deliver 1.5 m optical imagery and offer a daily revisit capability to any point on the globe. Data acquisition must be tasked, data is not acquired systematically.
SPOT 6/7 data with its high spatial resolution is suitable for a range of remote sensing applications such as vegetation monitoring, precise mapping, risk and disaster management.
Basic facts
| Property | Info |
|---|---|
| Spatial resolution | 1.5 m for panchromatic band and 6 m for all other bands |
| Sensor | Multispectral Imager, 5 bands: panchromatic, Blue, Red, Green and Near-Infrared band |
| Revisit time | Up to a daily revisit of any point on the globe. Data acquisition must be tasked, data is not acquired systematically. |
| Spatial coverage | global |
| Data availability | Since September 2012 |
| Measurement | Top of the atmosphere (TOA) reflectance |
| Common usage/purpose | vegetation monitoring, risk and disaster management, urban and mapping applications, civil engineering |
More information:
Attribution and use
The SPOT products are released under the license available here.
Purchasing SPOT data
The process of purchasing of SPOT data in Sentinel Hub goes as follows:
- Check the pricing and conditions. If you would like to buy bigger area send us an e-mail and we will prepare a custom offer.
- Go to the "Billing" section in your SH Dashboard and buy the Airbus SPOT plan.
- Once the payment is processed, we will send you a confirmation and you will be able to proceed with ordering the data.
Ordering SPOT data
To order SPOT data, please use our Third Party Import Data API. Minimum individual order is 2.5 km2. You can order smaller areas, however, you will be billed for the minimum area. Please note that you can only order the already acquired data, while tasking your own SPOT data acquisitions is not currently possible through Sentinel Hub.
SH uses the following settings when ordering SPOT data:
| Provider's parameter / tool | The values used by SH for ordering |
|---|---|
| product type | bundle |
| radiometric processing | REFLECTANCE |
| crs | UTM zone corresponding to user defined bounds |
| processing level | SENSOR or ALBUM |
More information:
Note: If you would need any other SPOT product, please contact us.
Once your order is successfully finished the ordered data will be available in one of your BYOC collections and ready to be used. To access the data you will need the id of this collection.
Accessing SPOT data
Accessing of the SPOT data is similar to accessing any other BYOC data. All processing and filtering options listed there can be used. However, the settings specific for accessing of SPOT data are listed below.
Endpoint Locations
| Service | Notes |
|---|---|
| https://services.sentinel-hub.com/ | Contains the data purchased by individual user |
Filtering Options
collectionId
Use the id of the BYOC collection into which your SPOT data was delivered as a value of parameter input.data.type in the process API requests. See BYOC data access for more information.
Available Bands and Data
This chapter will explain the bands and data which can be set in the evalscript input object:
Any string listed in the column Name can be an element of the input.bands array in your evalscript.
| Name | Description | Resolution |
|---|---|---|
| B0 | Blue, 454-519 nm | 6m |
| B1 | Green, 527-587 nm | 6m |
| B2 | Red, 624-694 nm | 6m |
| B3 | Near Infrared, 756-880 nm | 6m |
| PAN | Panchromatic, 455-744 nm | 1.5m |
| dataMask | The mask of data/no data pixels (more). | N/A** |
Units
The data values for each band in your custom script are presented in the 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 values in the Sentinel Hub Units column. Doing so will present data in that unit. The Sentinel Hub units parameter combines the physical quantity and corresponding units of measurement values. As such, some names more closely resemble physical quantities, others resemble units of measurement.
The Source Format specifies how and with what precision the digital numbers (DN) from which the unit is derived are encoded. Bands requested in DN units contain the pixel values which are the result of ordering and preprocessing the data as explained in the chapter Ordering SPOT data. Note that resampling may produce interpolated values. DN is also used whenever a band is derived computationally (like dataMask); such bands can be identified by having DN units and N/A source format.
For SPOT bands, DN are the default and only unit. Reflectance values can be obtained for optical and panchromatic bands using the simple formula: reflectance = DN / 10000.
The Typical Range indicates what values are common for a given band and unit, however outliers can be expected.
| Band | Physical Quantity (units) | Sentinel Hub Units | Source Format | Typical Range |
|---|---|---|---|---|
| Optical and panchromatic bands | Scaled reflectance (unitless) | DN | UINT16 | 0 - 4000 Highly reflective pixels can have values above 10000. |
| dataMask | N/A | DN | N/A | 0 - no data 1 - data |
Mosaicking
All mosaicking types are supported.