--- title: How to Use CORS Data to Process LiDAR in ROCK Desktop description: How to Use CORS Data for Processing LiDAR in ROCK Desktop | Step-by-Step Guide --- [Skip to content](https://learn.rockrobotic.com/how-to-use-cors-data-to-process-lidar-in-rock-desktop#main-content) English Show submenu for translations ![ROCK-robotic-community-logo.png\]](https://learn.rockrobotic.com/hs-fs/hubfs/ROCK-robotic-community-logo.png?width=250&height=50&name=ROCK-robotic-community-logo.png) - [ROCK Customer Support](https://www.rockrobotic.com/support/) Open main navigation Close main navigation - [ROCK Customer Support](https://www.rockrobotic.com/support/) - English Show submenu for translations - [www.rockrobotic.com](https://www.rockrobotic.com/) [www.rockrobotic.com](https://www.rockrobotic.com/) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [ROCK Knowledgebase](https://learn.rockrobotic.com/?hsLang=en) 2. [Sales](https://learn.rockrobotic.com/sales?hsLang=en) September 24, 2024 # How to Use CORS Data to Process LiDAR in ROCK Desktop ## How to Use CORS Data for Processing LiDAR in ROCK Desktop | Step-by-Step Guide If you're using a CORS (Continuously Operating Reference Station) to process your LiDAR data in ROCK Desktop, follow these steps to ensure accuracy and optimal performance. #### **Steps to Process LiDAR Data with CORS in ROCK Desktop** 1. **Base Station Proximity** - Ensure the CORS station is no more than 15 km from your project site. Beyond this distance, data accuracy may degrade. 2. **Verify RINEX File Details** - Confirm that your RINEX file includes **GPS**, **GLONASS**, **BeiDou**, and **Galileo** constellations. - Ensure the data was captured at a **1-second interval** for maximum precision. 3. **Check RINEX Coordinate System** - ROCK Desktop automatically reads the base station location from the RINEX file header. - Verify that the coordinates are in **WGS84** format. If not, retrieve the correct WGS84 coordinates from the CORS station's specifications and enter them manually in the advanced menu. 4. **Proceed with LiDAR Data Processing** - After verifying the above details, proceed with processing your LiDAR data in **[ROCK Desktop](https://www.rockrobotic.com/rock-desktop)** as usual. - The output LAS point cloud file will be int UTM projection and ellipsoidal height. > “When using the CORS station, accuracy depends significantly on its proximity and the quality of the RINEX file.” For more information on the specifications of the **R3 Pro V2**, visit our datasheet or learn about its precision for **surveying**. #### **Related Resources** - **How to Get Support for Your R3 Pro** - **Reprojecting R3 Pro Data into Local Coordinate Systems** - **How to Use CORS Base Station RINEX Data** If you have more questions, feel free to reach out through our **[talk to sales](https://www.rockrobotic.com/talk-to-sales)** page or explore more about **[ROCK Cloud processing services](https://www.freelidarprocessing.com/processing-services)**. - 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