Mile Square Labs’ Post

Sidus Space establishes two-way communications with state-of-the-art hybrid 3D-printed LS-1 satellite Sidus Space announced it established two-way communications with its state-of-the-art 3D-printed satellite, LizzieSat™, focused on earth observation and remote sensing solutions powered by Geospatial Artificial Intelligence (Geo-AI). Utilizing a state-of-the-art production process, Sidus’ hybrid, 3D-printed LizzieSat uses Markforged’s flame-retardant Onyx FR-A material to produce the bus structure with metal-like strength, while also reducing cost, weight, and production time. Once full production cadence is achieved, the expected time to manufacture the satellites is 45 days and includes printing and assembly. Following on the successful launch and deployment of its first LizzieSat earlier this year, Sidus has two additional LizzieSats manifested for launch before the end of the year. #Satellite #Space #LizzieSat #AI #Geospatical #GEOAI https://lnkd.in/eE-NAMgh

Why is a synthetic aperture radar (SAR) the only practical option for radar remote sensing from space? - The high altitudes of spaceborne platforms (i.e. hundreds of kilometres) preclude the use of real aperture radar (RAR) because the azimuth resolution, which is a function of the range distance, would be too coarse to be useful. In a spaceborne RAR, the only way to achieve fine resolution would be to have a very, very narrow beam which would require an extremely long physical antenna. However, an antenna of several kilometres in length is physically impossible to build, let alone fly on a spacecraft. Therefore, we need to use synthetic aperture radar to synthesize a long antenna to achieve fine azimuth resolution. https://lnkd.in/d4hMz5x6.

We are mapping European cities in 3D. 🏙️     Together with GAF AG, we have introduced the initiative to map all major European metro areas in 3D on a yearly basis.      For this initiative, called UrbanPix3D, we provide tri- or multi-stereo imagery at 30 cm resolution to GAF AG who create the models.     We use these Off Nadir Angles:     🔹 One image at 0–10° ONA   🔹 Two images at 12,5–15° ONA    The result is an off-the-shelf 3D product, ready to be delivered to the customer.     To see an example, watch a flight over a Digital Elevation Model of Berlin created by GAF from EUSI’s satellite imagery. ⬇️ #3D #satelliteimagery #urbanplanning #cities #europe Satellite imagery © 2024 Maxar Technologies Provided by European Space Imaging / DEM © GAF AG Provided by European Space Imaging

Optical satellite images with a lower Off Nadir Angle have a higher resolution.     But does it mean that a lower ONA is always better?      ❌ Not necessarily.     For two reasons:     🔹 Side feature visibility     An image collected from nadir (0° ONA) will show the place directly from above – buildings will look just like rectangles, making it harder to identify them.      On the contrary, with a higher ONA, you can see features that are only visible from the side, such as windows, wall structures, signs, or debris next to buildings.     🔹 Collection opportunities     A requirement for extremely low ONA values can limit the opportunities to collect the area, necessitating more passes to capture a larger region.      That can be limiting especially in time-critical applications, such as Emergency Response, when it's crucial to obtain the image as quickly as possible – preferably within a single satellite pass.     👉 An immediately collected image with a higher ONA and a slightly lower resolution may be better than waiting for the satellite to pass directly above the area of interest.     ⬇️     It’s essential to strike the balance between image quality, feature visibility, and satellite coverage based on the intended use.     Read more about the ONA: https://bit.ly/3UonzFs      Satellite imagery © 2024 Maxar Technologies Provided by European Space Imaging     #gis #gisapplication #geospatialtechnology #aerospace #remotesensing 

Historical Satellite Images: Accessing The Old Data Collections of historical satellite images allow comparing the present and the past to detect changes, make predictions, and mitigate losses. There are multiple sources with commercial historical images or granting access for free, with the downloading option or just for online view. The richest catalogs are often the most helpful, and EOSDA LandViewer offers historical aerial or satellite images from nearly a dozen sources. https://lnkd.in/gTDSPcmm

I𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝘁𝗵𝗲 𝗦𝟴𝟱𝟬 𝗚𝗡𝗦𝗦 𝗥𝗲𝗰𝗲𝗶𝘃𝗲𝗿! Stonex announces the launch of the #new S850 GNSS Receiver. This compact and modern device is designed for precision surveying in various environments. It features an Inertial Measurement Unit (IMU) that compensates for pole tilt up to 60°, powered by a robust 13400 mAh lithium battery for extended use. Additionally, its high-powered 2W radio ensures reliable long-distance data transmission. 𝗣𝗲𝗿𝗳𝗲𝗰𝘁 𝗳𝗼𝗿: • 𝗖𝗼𝘀𝘁-𝗖𝗼𝗻𝘀𝗰𝗶𝗼𝘂𝘀 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹𝘀: Performance meets affordability. • 𝗕𝗮𝘀𝗲 𝗦𝘁𝗮𝘁𝗶𝗼𝗻 𝗨𝘀𝗲𝗿𝘀: Reliable radio connectivity for efficient workflows. • 𝗗𝗿𝗼𝗻𝗲 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Elevate your aerial mapping and surveying. • 𝗖𝗼𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻 𝗧𝗲𝗮𝗺𝘀: Built tough for challenging environments. 𝑳𝒆𝒂𝒓𝒏 𝒎𝒐𝒓𝒆 𝒇𝒐𝒓 𝒎𝒐𝒓𝒆 𝒅𝒆𝒕𝒂𝒊𝒍𝒔 https://lnkd.in/dwnEA8Vu #Stonex #Stonexpositioning #StonexS850 #S850 #GNSS #GPSReceiver #GNSSReceiver #Survey #Surveyor #Surveylife #SurveyingLife #GPSDevice #Rilievo #Topografia #Topography #Satellite #Compact #HighPrecision #IMU

Free in-person #workshop #WashingtonDC | Novel #Geopatial #analysis applications: Woody Cover Estimation in Brazil using Synthetic Aperture Radar https://lnkd.in/eYmrQeNW #WashingtonDC. Led by Xiaoxuan Li (Shawn) from New Light Technologies NLT, this workshop will guide users through the steps to combine publicly accessible Airborne Light Detection and Ranging (LiDAR) and Synthetic Aperture Radar (SAR) data to estimate woody cover in Brazil. The workshop will cover #data types and preprocessing, model estimation and selection, #visualization of predictions, and uncertainty calculations. Xiaoxuan and his coauthors developed this approach as part of their 2023 paper in Remote Sensing of Environment, “Quantifying the sensitivity of L-Band SAR to a decade of vegetation structure changes in savannas”. This is an in-person workshop only. Please bring your own laptop. No prior work is expected, but foundational knowledge of R will be required. Please contact Fiona Kastel ([email protected]) if you would like to participate but are unsure if you meet this prerequisite. Register here ⬇ https://lnkd.in/eYmrQeNW

Ranging from large-scale projects to detailed city information, 15 cm HD enables higher-definition mapping with an unprecedented level of detail in satellite imagery.    That allows governments and organisations to verify features, such as light poles, signs, or infrastructure conditions, without the inconvenience or cost of sending teams into the field.    💡 What is 15 cm HD?    Satellite imagery is collected at the native resolution of 30 cm, and further enhanced by Maxar’s proprietary HD (High-Definition) technology.    The technology intelligently increases the number of pixels through a complex mathematical model, resulting in 15 cm imagery, and helping both people and algorithms better extract valuable information.    ➡️ The same process can be applied to native 40–60 cm imagery, rendering a 30 cm HD image.  Satellite Imagery © 2024 Maxar Technologies Provided by European Space Imaging   #GISApplication #GeospatialResolution #RemoteSensing #SatelliteImages #SpaceTechnology 

GeoSynth: Contextually-Aware High-Resolution Satellite Image Synthesis https://lnkd.in/epYkkE_a #satelliteimaging #satellite #maps