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Analysis APIs

Analytics API, Processing API, Asynchronous Processing API, Batch Processing APIs, Statistical API, and Batch Statistics API.

  • 2,582 Topics
  • 8,946 Replies
2582 Topics
S
SentinelHub User
posted in Analysis APIs
Difference between Sentinel Playground and EO Browser

Hello, I wonder if someone could help me understand this. What is the difference between Sentinel Playground and EO Browser? Specifically, I am trying to understand why one image is showing cloud cover that the other does not show. Is it that the EO Browser only shows imagery taken for a specific day, whereas the Playground is accumulated data over time? Thanks in advance, Ryan

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S
SentinelHub User
posted in Analysis APIs
How can I get the exact date the image was captured?

Hi, I’m using the Rest API and retrieving image from this endpoint: https://services.sentinel-hub.com/api/v1/process Here’s my request example: url = "https://services.sentinel-hub.com/api/v1/process" headers = { 'Accept': '*/*', 'Content-Type': 'application/json', 'Authorization': f'Bearer {token["access_token"]}', 'Origin': 'https://apps.sentinel-hub.com', 'Connection': 'keep-alive', 'TE': 'Trailers' } res = requests.request("POST", url, headers=headers, data = json.dumps(payload), timeout=10) What I get in the res.content is an image but I’m also interested in the date it was captured. Is there any way I can get the date it was captured?

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S
SentinelHub User
posted in Analysis APIs
Convert filename on download

Hi, I’ve just started trialling sentinel hub, with the objective of being able to download a time-series of imager for a specific AOI, less than 10km2. Ideally, it would be best to store the extracted data locally, with an appropriate filename, with the sensor name and acquisition date in the GoeTiff filename. However, when I use the SentinelHubCatalog API and the standard SentinelHubRequest API together, I am only able to pull imagery down with the request format (folder with random request ID, and then the standard ‘request.json’ and ‘response.tif’ files). Is there anyway to rename the file so that it can be identified, otherwise you have to use the request.json each time? Alternatively, am I using the wrong tool? Is there a way of capturing a time-series for a small AOI? Below is my current script, in which I search using Catalog, and then use Request to collect 3 images (I have added a download folder path extracting the date from the timestamp): import python libraries import os

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S
SentinelHub User
posted in Analysis APIs
Max retires exceeded when dowloading data from AWS

I try to download data from AWS, using sentinelhub-py, with following code: import os from datetime import datetime from sentinelhub import CRS, BBox, DataCollection, SentinelHubCatalog, SHConfig from sentinelhub.aws import AwsDownloadClient boto_params = {"RequestPayer": "requester"} config = SHConfig() config.sh_client_id = "my client id" config.sh_client_secret = "my client secret" config.instance_id = "my instance id" config.aws_access_key_id = "my access key id" config.aws_secret_access_key = "my secret access key" s3_client = AwsDownloadClient.get_s3_client(config) def download(s3_tile_path, download_dir, objects_to_download=None): os.makedirs(download_dir, exist_ok=True) all_files = list_tile_objects(s3_tile_path) for file in all_files: file_name = file["Key"].split("/")[-1] if not objects_to_download or file_name in objects_to_download: out_path = os.path.join(download_dir, file_name) _, _, bucket_name, _ = s3_tile_path.sp

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S
SentinelHub User
posted in Analysis APIs
Poor Resolution for Sentinel-2 in ArcMap

I downloaded a 32-bit GeoTiff Sentinel-2 image from 08/08/2016 with which I plan to calculate NDVI in ArcMap, but the resolution is awful. I layer stacked bands 2, 3, 4, and 8 which I had thought are 10m resolution but the image is far from clear. I used the Composite Bands tool to stack but am not sure why even after downloading the image looked so bad. I wanted to know what to do different or preprocessing steps I may have missed? I have access to ERDAS Imagine too since ArcMap is not great for raster data. Thanks!

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S
SentinelHub User
posted in Analysis APIs
Obtaining Sentinel 2 atmospherically corrected images

Hi There I am still new to using sentinel hub for my sentinel 2 image download. At work we use the sentinel hub configuration utility to generate some of or index maps. Can someone please guide me on how I would go about configuring a wms which would allow me to download and open atmospherically corrected images in QGIS which I can do further processing on. I need access to bands 2,3,4,5,6,7,8,8a,1972,12. I am based in Africa and therefore cant use the recent L2a products which only cover europe. My study area is large and I would like to run a land classification on multiple sentinel2 tiles. Downloading and atmospheric correction manually is consuming far too much of my time. Any advice on how to set up a wms that would allow me to download atmospherically corrected sentinel 2 tiles in QGIS for this purpose would be greatly appreciated.

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S
SentinelHub User
posted in Analysis APIs
Calculate NDVI for an area using Statistics API

Hi team,We have just started looking at the Statistics API and wanted to check if anyone has done something similar to help us jumpstart the learning.We have polygons of parcels and wanted to identify the best way to get the NDVI statistics for a year period so we can check trends. I did have a look at the EO Browser but i can see C0, C1, C2 returned and wasnt sure if i am doing this right.Any pointers would be much appreciated.Sincerely 

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S
SentinelHub User
posted in Analysis APIs
Airbus Pleiades 401 error

{“error”:{“status”:401,“reason”:“Unauthorized”,“message”:“You are not authorized - please provide header [Authorization: Bearer ] with your request.”,“code”:“COMMON_UNAUTHORIZED”}} This is an error that I get when I am trying to display an image preview in python. I use a code from here:docs.sentinel-hub.com Examples of Third Party Data Import Follow these examples to import commercial third-party data into Sentinel Hub. and I don’t see any place where I can put Bearer (I don’t have it. Only ID and key). I have an active package.

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S
SentinelHub User
posted in Analysis APIs
Sentinel Hub | HTTP Error 400: Bad Request

Hello everyone, I am a Network of Resources member. Yesterday and today I ordered some Pleiades satellite data and the orders were successful (checked already in the sentinel-hub “request builder” and on the “EO browser”). Afterwards I started downloading the data via the script (attached underneath) and everything worked well. One hour ago, using the same script (changing only the polygon coordinates) I started to receive a “400 Bad Request Response” (screenshot attached). Kindly I would like to know if there is an issue on the sentinel-hub side or if I have some limitations for downloading data. Thank you in advance. Kind regards

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S
SentinelHub User
posted in Analysis APIs
Sentinal hub ( Having an issue with the pixels generated)

After generating images for SENTINEL1_IW , the images generated has zigzag at the end of each pixel (Edges are not smoothened). Could anyone provide me a solution to the problem . Related image for the current problem is been attached Thanks in advance

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S
SentinelHub User
posted in Analysis APIs
Error 401 in combination with instance id

Introduction: Hello everyone, I’m a newcomer to working with satellite imagery and SentinelHub. I may need a straightforward explanation or solution, so I appreciate your patience. Despite searching extensively on Google and the forum, I haven’t found a solution to my problem. Context: I successfully followed this Jupyter notebook for migrating from the old API to the new one. However, when attempting this Jupyter notebook for large areas, I encountered an HTTPError 401 Client Error: “You are not authorized,” despite having created the necessary instance ID token. Problem Code Blocks: The code blocks causing the issue are found in cellblocks 15 & 16 and are look as follows in my slighlty modified version: from sentinelhub import SHConfig from decouple import config as credentials config = SHConfig() config.instance_id = credentials("POETRY_SENTINEL_INSTANCE_ID") config.sh_client_id = credentials("POETRY_SENTINEL_CLIENT_ID") config.sh_client_secret = credentials("POETRY_SENTINEL_C

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S
SentinelHub User
posted in Analysis APIs
Sentinel-1 CRS related info

Hey, This might be a bit of a silly question, but I’m querying Sentinel Hub for Sentinel-1 data over a specific AOI. Why is it that for Sentinel-1 we have to use a tuple (something like 20,20) for the resolution, and also how does the CRS affect the output? For instance, for the same AOI, requesting data with EPSG:4326 yields only one pixel, where as using the EPSG:3035 gives me about 17x14 pixels. Also in general, where do I find which CRS to use for a specific satellite? Additionally, if I understand correctly with Sentinel 1, this is also dependent on where the AOI is in the world? Correct? I guess in the EU Sentinel-1 offers higher resolution, where as in the rest of the world it offers lesser resolution? Would appreciate some input about how to wrap my head around the CRS when it comes to Sentinel Hub.

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S
SentinelHub User
posted in Analysis APIs
Get all sentinel-2 observations for a AOI

I am trying to do a moisture forecast using sentinel-2 for an area of interest and I’d like to get all observations from a certain data range. Here is my current approach: I define mosaicking as TILE in my evalscript for each week, I get the image with max cloud cover less than 0.4 I get several no data images which are dark. I know this is quite expected, but is there alternate way to get all observations for the same AOI and flag the cloudy ones. This is quite important for monitoring a particular FOI. I took a look at the area monitoring article, but the method to retrieve images are not clear to me. It would be great if you can offer my any insights on this. If I am correct, the use a similar approach like mine as well.

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S
SentinelHub User
posted in Analysis APIs
True colour are Images too bright or extremely dark

I tried to increase the time window to up to 8 months and set least cloud cover to 15 percent, but I am getting images that are too bright or completely dark, although the area is just 74.5 km2 which is large enough to not be completely dominated by clouds I assume. Is there a work around to get decent images for time series analysis of this specific area. example image (11 months least CC mosaicking) example image (3 months least CC mosaicking) The code used: /VERSION=3 function setup() { return { input: [{ bands: ["B01", "B02", "B03", "B04", "B08", "B05", "B06", "B07", "B8A", "B11", "B12"], units: "DN" }], output: { bands: 4, sampleType: "INT16" } }; } function evaluatePixel(sample) { return [sample.B01, sample.B02, sample.B03, sample.B04, sample.B05, sampl

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S
SentinelHub User
posted in Analysis APIs
Is there any provision to get the overlapping area with the PlanetScope Image through API

We want to programatically download the PlanetScope data for either specific dates or date range. So, is there any provision currently to download a tile which has the maximum overlapping area with our shape/polygon on same date. For example i have attached the screenshot of two Planet Images of the same day. We would want to download the second one rather than first one.

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S
SentinelHub User
posted in Analysis APIs
Imagery scenes not downloading

We are having problem with inconsistency with downloading scene tiles. It seems that imagery is available on ESA site but not on AWS very frequently.The current issue is scene tiles 17SKR and surrounding scenes on 6/6/18 and 6/11/18. They do show up in quicklooks but cannot access through our script. 

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S
SentinelHub User
posted in Analysis APIs
Latitude and longtitude to pixel position

Hello, Assume I have an image whcih its size is (10000,10000) and its boundin box is: geometry = [ [ [ 37.831375, 37.319936 ], [ 39.855892, 37.319936 ], [ 39.855892, 36.648589 ], [ 37.831375, 36.648589 ], [ 37.831375, 37.319936 ] ] ] What can I do if I want to find this polygon coordinates in the image ? [[[39.496605773761, 37.323714883356], [39.496514330921, 37.323732909052], [39.495225305793, 37.319562136161], [39.500846543296, 37.31845390628], [39.502573247157, 37.321674080317], [39.496605773761, 37.323714883356]]]

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S
SentinelHub User
posted in Analysis APIs
Sentinel-2 .tif bands RGB

Hello! I have this from my teacher (I’m a student). I need to display the image in RGB format, using the channels 4, 3, 2. I did that, and I managed to view the images (I tried with 2 for starters, but I will visualize all 12 of them). The code I used is: import os import cv2 import numpy as np import matplotlib.pyplot as plt import rasterio from skimage import exposure, filters def load_rgb_image(folder_path, red_band, green_band, blue_band): # Lista de nume de fișiere TIF din folder file_names = os.listdir(folder_path) # Citirea datelor din benzile specifice bands_data = [] for band in [red_band, green_band, blue_band]: band_path = os.path.join(folder_path, band + '.tif') with rasterio.open(band_path) as src: band_data = src.read(1) bands_data.append(band_data) # Crearea imaginii RGB rgb_image = np.dstack(bands_data) return rgb_image Setare căi către foldere folder_path_1 = “/content/drive/MyDrive/sentinel/S2A_MSIL2A_20170426T091031_N0204_R050_T35TMK_20170

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S
SentinelHub User
posted in Analysis APIs
Two S2 images on same date

In this S3 bucket sentinel-s2-l2a/tiles/36/N/UH/2021/9/26 I see two directories (0/ and 1/) which according to the file naming documentation refer to two images for the same date. How is this possible? I’ve plotted the images, and they seem to contain the same spatial patterns, but with different value ranges. Were they processed differently?

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S
SentinelHub User
posted in Analysis APIs
S2Cloudless and Python

Greetings, I am trying to implement in my Python Script the s2cloudless. I am using python 3.6.13 so I installed s2cloudless 1.5.0. I have some questions: Is it necessary to check for clouds after the initial scene classification? Why I cannot import the specific s2cloudless version? It gives an error about future annotations meaning it needs newer python version when in the documentation it says that 1.5.0 needs python >= 3.6. Thank you in advance.

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S
SentinelHub User
posted in Analysis APIs
I can't use the QGIS plugin Sentinel hub with a Proxy

Hello, I can’t use the Qgis plugin with a proxy. I’ve tried several proxy configurations: default, http… Has anyone solved this problem? 2023-12-11T17:47:54 WARNING Traceback (most recent call last): File “C:\PROGRA~1\QGIS32~1.0\apps\Python39\lib\site-packages\urllib3\connection.py”, line 159, in _new_conn conn = connection.create_connection( File “C:\PROGRA~1\QGIS32~1.0\apps\Python39\lib\site-packages\urllib3\util\connection.py”, line 84, in create_connection raise err File “C:\PROGRA~1\QGIS32~1.0\apps\Python39\lib\site-packages\urllib3\util\connection.py”, line 74, in create_connection sock.connect(sa) ConnectionRefusedError: [WinError 10061] Aucune connexion n’a pu être établie car l’ordinateur cible l’a expressément refusée During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\PROGRA~1\QGIS32~1.0\apps\Python39\lib\site-packages\urllib3\connectionpool.py", line 670, in urlopen

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S
SentinelHub User
posted in Analysis APIs
400 Client Error :ailed to evaluate script! when trying retrieve sentinel1

I’m trying to retrieve sentinel1 images using evalscript. I have followed the instruction as appear here but I couldn’t understand the reason why I keep getting the 400 client error (bad request). This is my evalscript: evalscript = """ function setup() { return { input: {bands: ["VV","VH"]} output:{bands: 2, sampleType:"FLOAT32"}} } function evaluatePixel(sample) { return [10 * Math.log((sample.VV)+0.0001) / Math.LN10, 10 * Math.log((sample.VH)+0.0001) / Math.LN10] } """ and this is how I have tried to use it, when dates is list of dates strings (e.g [‘2020-07-01’,‘2020-07-12’]… or d in dates: request = SentinelHubRequest( evalscript=evalscript, input_data=[ SentinelHubRequest.input_data( data_collection=DataCollection.SENTINEL1_IW_DES, time_interval=(d,d), other_args = other_args = {"dataFilter":{"resolution":"HIGH","acquisitionMode":"IW"},"processin

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S
SentinelHub User
posted in Analysis APIs
Adding the cloud cover precentage in sentinel hub request

Hello, that might be very simple question 🙂 what is the parameter for cloud coverage precentage in sentinel hub request (evalscript)? I saw examples in the documentation for how to rank it by cloud cover but not how to filter it by the cloud precentage from the evalutate script. I’m a bit confused with all the different api, if you could even tell me where I can find all the possibles parameters I can put in the evalscript it would be great. evalscript_sentinel =""" //VERSION=3 function setup() { return { input: ['B01', 'B02', 'B03', 'B04', 'B05', 'B06', 'B07','B08','B8A','B09','B11','B12'], output: { bands: 12, sampleType: "FLOAT32" } } } function evaluatePixel(sample) { return [ sample.B01,sample.B02,sample.B03,sample.B04,sample.B05,sample.B06,sample.B07,sample.B08,sample.B08A,sample.B09,sample.B1972,sample.B12]; } """ ...... sen_request = SentinelHubRequest( evalscript=evalscript_sentinel, input_data=[ SentinelHubReq

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S
SentinelHub User
posted in Analysis APIs
Sentinel-2 L2A negative band reflectance values

Hello,We are working on S2 L2A images collected via eo-learn SentinelHubInputTask function. This function is described in the documentation as following : “Process API input task that loads 16bit integer data and converts it to a 32bit float feature”. As we are not passing any evalscript argument that may be overriding the default generated one, according to this article the DN to reflectance conversion should be correctly done.However, we are observing distributions of band reflectance values that are significantly below 0 (down to -.5 in some cases). This doesn’t seem to be an isolated problem as this happens consistently on all images of a time-series. However this doesn’t affect all the bands equally.Here is the frequency histogram of reflectances values coming from all the pixels of a time-series. We are observing agricultural lands, on a 2km x 2km area. Band number is expressed as band index of eo-patch ([‘B01’, ‘B02’, ‘B03’, ‘B04’, ‘B05’, ‘B06’, ‘B07’, ‘B08’,‘B8A’, ‘B09’, ‘B11’,

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S
SentinelHub User
posted in Analysis APIs
Missing Scroll Bar in EO Browser Menu?

I do not see the scroll bar that enables downward movement through the list below the Discovery and Visualize Tabs. I see it in Sentinel Hub YouTube videos. I am unable to scroll down the list and view the image thumbprints below those displayed at the top of the static menu. Also unable to access Visualize info below the bottom edge of my Browser window. I am using the free Trail Account to see what Sentinel Hub offers.Screen capture of EO Browser left menu

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