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PlanetScope

PlanetScope Monitoring provides a medium-resolution, continuous, and complete view of the world from above, every day.

86 Topics
241 Replies

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86 Topics

AAPV‎‎ 🌱

Slight spatial misalignment in PlanetScope/RapidEye imagery

Hello!I have a set of scenes of the same area, but there’s some slight misalignment between them (like 3 or 4 pixels), this usually isnt a problem, but I need the most precission possible for my use case (measuring coastal recession), so even a small misalaignment could change results greatly. This happens between images from different and same sensors, so it isnt a result of using different sensors (at least i dont think so),beacuse i have some that are correctly aligned. Also, i used the same AIO to download the images from PlanetScope, so the images have the same extent and are clipped to the same area. My question is, is there any way to download scenes that are correctly aligned, or should I fix it manually? (or is there a faster way to automatically align them?) Thanks everyone!

282

4 days ago

japolo‎‎ 🌱

asked in PlanetScope

Rendering PlanetScope scene in QGIS appears incorrect

I downloaded 8-band analytics ready surface reflectance PlanetScope scenes for a study. I want to create a visualization of one of the scenes with QGIS. However, when I load the scene in QGIS as a raster, it doesn’t look like the agricultural field I’m expecting. I made sure to assign the bands as red = 6, blue = 2, and green = 4.This is how the scene looks in Planet Explorerscreenshot of planet explorer showing a selected image in an AOIThis is how the PlanetScope scene looks rendered in QGISQGIS with the PlanetScope scene in the drawing area The scene looks like an odd mosaic of colors. I realize that the resolution of the underlying NAIP image might influence how the scene might be perceived, but honestly, the scene looks like an odd mosaic of colors. How can I get the scene to render in QGIS the way it looks in Explorer?

301

11 days ago

harper269‎‎ 🌱

asked in PlanetScope

Best Practices for Visualizing Clear Pixels from UDM2 in ArcGIS Pro?

Hi all,I’m working with PlanetScope SuperDove UDM2.1 data in ArcGIS Pro and I’m trying to better understand how to interpret and visualize clear pixels in the UDM RGB composite.As I understand it, the default RGB band mapping is: Red = Clear Green = Snow Blue = Shadow To work around this, we’re also testing the individual UDM bands using Extract Bands and the Raster Calculator, creating binary layers like:Con("UDM2_B1" == 1, 1, 0) (assuming Band 1 = Clear), so that: 1 = clear pixel 0 = not clear This is giving us a more direct view of which pixels are flagged as usable. Are we on the right track with that approach?I'd love to hear how others: Visualize or validate clear pixels in RGB composites Work with UDM2 bands in ArcGIS Pro or QGIS Apply symbology or classification to quickly identify good pixels for analysis We’re using this for water quality and algal bloom detection, so identifying usable pixels accurately is important for our downstream work.Any advice, workflows, or

361

18 days ago

Haiyan Huang‎‎ 🌱

asked in PlanetScope

black lines in SR file

Hi,I found some black lines (low values ) in the NIR band of 20200224_152346_83_106b_3B_AnalyticMS_SR. Those lines do not appear in RGB bands, so I think they are not natural features.I m not sure how many files have the similar issue. Would you please check as NIR band is very important to our research. best,Haiyan

Javier Muro‎‎ 🌱

Hi. I’ve noticed that in some images (3/3 so far), the udm layer has some shifts across scenes for one same tile/overpass. This complicates the application of cloud masks. Is is something you are aware of? or is it rare and I was just unlucky? 5626519_3264221_2022-05-09_241c_udm25625958_3263610_2022-05-08_241c_udm25626519_3264220_2022-05-09_241c_udm2

2542

18 days ago

Léo Rasse‎‎ 🌱

asked in PlanetScope

Non consistent surface reflectance values

Hello everyone, I am using PlanetScope Scene images already corrected in surface reflectance (Dove Classic) to assess the temporal changes of the vegetation cover on a specific site. As the site is about 30 km long, I need to use several tiles to cover the whole area. I have recently noticed that the reflectance values of the pixels of two overlapping images are quite different (even if the images were taken by the same satelitte, at the same time).Do somebody know why do I oberve this ? If yes, do somebody know how can I solve and obtain consistant surface reflectance values between overlapping tiles ? I thank you in advance for your answers, Léo

3157

18 days ago

Evangelia Efi Konstantinidou‎‎ 🌱

asked in PlanetScope

Issue with PlanetScope product type 'Harmonized'

Hi, I’m having issues with the ‘harmonized’ PlanetScope data products.I have been downloading several such scenes and after saving the extracted data folders on disk, the products seem not be the harmonized versions of the scenes. I posted a related question in the forum some months ago but I realize that, from my part I correctly choose the data product to be ‘harmonized’ (please see attachment temp_screenshot.jpg) while ordering. Nowhere in the downloaded files (.tif extension, manifest json file) is there an indication of the product being harmonized, it looks like an ordinary surface reflectance composite scene.For reasons I don’t understand, on the only 2 instances where I received properly annotated ‘harmonized’ products, the extracted folder had a different structure (attachment temp_screenshot_2.jpg). Usually each downloaded product gets extracted in a single folder that contains the ‘manifest’ and ‘catalog’ files.I would really appreciate some assistance/ clarifications here.

983

19 days ago

herolobster‎‎ 🌱

asked in PlanetScope

how to purchase imagery with low revisit rate but wide range (probably global)

I am working on a geopolitical science project on a weekly basis, how to get the PlanetScope global image within 30 days but with a low revisit rate? I've noticed the MONITORING PLAN, but a high revisit rate doesn't fit my needs. Thank you!

2534

23 days ago

Haiyan Huang‎‎ 🌱

asked in PlanetScope

8b SR images have black strips

Hi,I’ve downloaded some 8b sr images, but I found they have some black strips across the image. (see below, band 4 of 20230214_080952_42_2447_3B_AnalyticMS_SR_8bmore obviously in shortwave bands. would you please check?Best,Haiyan

2712

23 days ago

zekariab‎‎ 🌱

asked in PlanetScope

Failed to load planet-nicifi basemaps on GEE

I am getting the following error, when I try to load the basemap asset on GEE.ImageCollection.load: ImageCollection asset 'projects/planet-nicfi/assets/basemaps/africa' not found (does not exist or caller does not have access).

541

24 days ago

mariah.hauckPlaneteer 🌎

posted in PlanetScope

Resources and Q&A - Agile EO: Aircraft Detection at Planetary Scale

In March’s Agile EO episode, we introduced Aircraft Detection—a new offering that provides near-daily monitoring of thousands of airfields globally, enabling trends and anomalies to be spotted. Watch the webinar on-demand. Below are common questions, and questions that we weren’t able to get to during the live event. Our hosts Justin Davis, Sr. Product Manager - Applied Machine Learning, and Adam Van Etten, Principal Data Scientist, have provided answers, plus resources to learn more. QuestionsQuestion: Can you track aircraft in flight? Answer: We can’t say for sure that a given aircraft is the same aircraft from one day to the next, BUT we can track how many aircraft are present at a given airfield each day AND whether the aircraft present are in the same positions as they were before. This can help indicate activity at a given airport/airfield and highlight anomalous behavior. Question: How big of an airplane can you detect?Answer: In our experimentation, we found performance for ai

360

1 month ago

S.shagun‎‎ 🌱

asked in PlanetScope

Scaling and indices for bands for planet images

Hi,I am very new to remote sensing. I got raw images from planet scope for my area of interest through QGIS plugi. however before I calculate NDVI for my area. I need to normalised or scale the bands. I am using this formula lower_percentile = 30upper_percentile = 70y1=float(0.2)y2=float(0.5)def scale(band): # scale values for display purposes band = band.astype('float64') x1 = np.log10(float(np.percentile(band[band!=0], lower_percentile))) x2 = np.log10(float(np.percentile(band[band!=0], upper_percentile))) band[band==0]=np.nan band = np.log10(band) def equations(p): a, b = p return (np.log(a)-x1*b-np.log((1-y1)/y1), np.log(a)-x2*b-np.log((1-y2)/y2)) a,b = fsolve(equations, (1, 1)) band=1/(1+a*np.exp(-b*band)) return band. Can somebody please tell why could be different method for scaling and is there any paper which can recommend for scaling the planet images?

2015

1 month ago

jan.blazek‎‎ 🌱

asked in PlanetScope

Issue with Retrieving NDVI Data from PlanetScope

Hi,We have started testing PlanetScope, but we are unable to retrieve NDVI data for the selected area.In My Collections, we created a Collection with ID, and we added a Subscription to it. The PlanetScope data was successfully loaded—we can see and download it via the web application.However, when we try to generate NDVI using the API endpoint https://services.sentinel-hub.com/api/v1/process, we do not receive any data. The endpoint returns null.Request:{ "input":{ "bounds":{ "properties":{ "crs":"https://www.opengis.net/def/crs/OGC/1.3/CRS84" }, "bbox":[ 13.895467093481912, 49.978376989130496, 13.905815440973406, 49.982298215337835 ] }, "data":[ { "type":"byoc-<collectionId>", "dataFilter":{ "timeRange":{ "from":"2025-03-09T00:00:00+01:00", "to":"2025-03-09T23:59:59+01:00" }

981

1 month ago

kristofj‎‎ 🌱

posted in PlanetScope

Preparing Imagery for Time-Series Analysis

I am attempting to prepare PlanetScope imagery for a time-series analysis. I have read a bit about transforming imagery into Analysis-Ready Data (ARD), so I am aware of the general steps in the process. This is the high-level workflow I have come up with so far:masking --> normalization --> compositing --> co-registration However, I am not sure how to implement these steps. Does anyone have any resources that describe how to prepare imagery for time-series analysis in as much detail as possible? Some other details:I am using 8-band imagery from SuperDove sensors I have downloaded imagery as analytic surface reflectance at this point (but am open to other formats) I am using Python to acquire and process this imagery.Thanks for any help you can provide.

1444

1 month ago

minhnguyen‎‎ 🌱

asked in PlanetScope

Unexpected response status: 422 in timelapse

I want to create a timelapse using PS imagery but I have this error Unexpected response status: 422. Why is the error? I use more than 100 images.

1942

1 month ago

Dinh Hung‎‎ 🌱

asked in PlanetScope

Xin gia hạn tài khoản

Xin chào,Hiện tại tôi đang sử dụng hình ảnh PlanetScope để phân tích dữ liệu thông tin biến động rừng của mình. Tuy nhiên, tôi nhận thấy Tài khoản Giáo dục và Nghiên cứu của mình đã hết hạn. Tôi có thể yêu cầu gia hạn cho tài khoản của mình không? Ngoài ra, hiện tại tôi cần lượng dữ liệu lớn hơn. Tôi có thể tăng giới hạn tải xuống hàng tháng cho tài khoản của mình không?Cảm ơn bạn rất nhiều vì sự giúp đỡ của bạn. Tôi mong nhận được phản hồi của bạn.

1522

1 month ago

Varaha_RS‎‎ 🌱

asked in PlanetScope

RGB reflectance ranges for proper RGB layer display on QGIS

I am having trouble in getting a clear display of a true color composite (TCI) of a harvested farm in north of India in QGIS. I am using Planetscope image of 2024 from the 8-band Superdove collection. This is a 2.5 acre farm. The TCI content is getting obscured by rainbow effect (‘Unclear.png’). The band ranges and other symbology details are given in ‘Unclear_specs.png’). I have attached a screenshot of the metadata of this farm for reference (‘Unclear_metadata.png’). What band value ranges or other parameters should I edit to see a clearer image?FYR, I have attached screenshots in the three categories for a larger farm (14 acres) that is harvested in one plot and tilled in other plots: Clear_14ac.png, Clear_14ac_specs.png, Clear_14ac_metadata.png. This farm has a very clear view. The clear confidence percent for this image is 95 as compared to the unclear farm (85) but that should not produce such a drastic difference in clarity given the clear percent in both images is 100.Please he

2422

1 month ago

mariah.hauckPlaneteer 🌎

posted in PlanetScope

Recording Available - Agile EO: Planet Monitoring Overview and Q&A Webinar

In January, as part of our monthly Agile EO webinar series, we asked the live webinar audience what product they’d like us to explore more. So in February, we hosted a dedicated Q&A session on our flagship product, Planet Monitoring. If you missed the Planet Monitoring Overview and Q&A webinar or want to watch it again, you can access the recording now. We also have some additional resources you might find helpful after watching: Dive deeper with our product resources: Planet Monitoring datasheet, Planet Basemaps datasheet, and the Analysis-Ready PlanetScope technical specification. Watch past episodes of the Agile EO webinar series. Contact sales to get started.I hope you’ll join us on March 26 for Agile EO: Aircraft Detection at Planetary Scale where our product experts will introduce this new product with an overview, demo, and Q&A session.

410

2 months ago

kgis‎‎ 🌱

asked in PlanetScope

Steps to take to extend my account further

I wanted to reach out regarding my account, which is currently set to remain active until September 30, 2024. Could you please let me know the steps I need to take to extend my account further?I appreciate your assistance and look forward to your guidance.

GabiZuccolotto24‎‎ 🌱

Prior to the expiration of Planet’s previous CSDA contract with NASA I had been using the Planet API to download Planet SuperDove imagery straight into Google Earth Engine. When the contract expired, I lost access to imagery via the API but am hoping that is now reinstated. Have any changes been made to Planet access via the API with the new CSDA contract? Specifically, I’m curious about limits on 8-band SuperDove imagery downloads, as my project requires a lot.

1443

2 months ago

spenshi‎‎ 🌱

asked in PlanetScope

How many individual satellites have there been in the PlanetScope constellation?

I know that I can look at the latest L1 Data Quality Report to see a list of satellites which are currently active in the PlanetScope constellation. Is there anywhere I can see a list of all satellites that have ever been in the constellation?

1434

3 months ago

japolo‎‎ 🌱

asked in PlanetScope

How is Scene Download usage calculated?

I downloaded PSScenes for two locations yesterday. One location’s extent was 0.003 km2, the other was similar. I downloaded 9 daily scenes for one location and 4 for the other. I got 8 bands for each day. My thinking, the total area for one location is 8 (bands) X 9 (days) X 0.003 km2 = 0.216 km2 for one location. The other location is about half that, since I had half as many days. However, my account dashboard says that I’ve used 1300 km2 this month, even though those were the only downloads I’ve done this month. Can someone clarify this for me, please?

1663

3 months ago

Kiramat‎‎ 🌱

asked in PlanetScope

Albedo estimation from Visible and NIR

Hello Everyone!I am a beginner, and I am trying to explore the possibility of estimating surface albedo using PlanetScope data. Since there are several established relationships between the visible and NIR bands from Landsat 8 and Sentinel-2, I was wondering if anyone has explored the use of PlanetScope data for surface albedo estimation.Can we use the visible and NIR bands from PlanetScope data to estimate surface albedo?I would really appreciate any help or insights.

1221

3 months ago

GabiZuccolotto24‎‎ 🌱

asked in PlanetScope

Changing plan from basic Education & Research Plan to NASA SmallSat Data Plan

I’m a PhD student using Planet data for my dissertation research. I’m currently on a basic Education & Research student plan. However, I recently received a NASA FINESST grant and therefore would like to switch onto the NASA SmallSat Data plan. Please let me know how to make this switch.

1001

3 months ago

jawad.ziyad‎‎ 🌱

asked in PlanetScope

PlanetScope Surface reflectance

Hello,I have a PlanetScope Surface reflectance Product. Is the AnalyticMS_SR.tif file is scaled surface reflectance in Digital Number ? and How do I convert the DN to surface reflectance value?

119011

3 months ago

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