Simon Willison’s Weblog

2 items tagged “satellites”

2018

AWS Ground Station – Ingest and Process Data from Orbiting Satellites. OK this is cool. “Instead of building your own ground station or entering in to a long-term contract, you can make use of AWS Ground Station on an as-needed, pay-as-you-go basis. [...] You don’t need to build or maintain antennas, and can focus on your work or research. We’re starting out with a pair of ground stations today, and will have 12 in operation by mid-2019. Each ground station is associated with a particular AWS Region; the raw analog data from the satellite is processed by our modem digitizer into a data stream (in what is formally known as VITA 49 baseband or VITA 49 RF over IP data streams) and routed to an EC2 instance that is responsible for doing the signal processing to turn it into a byte stream.” # 28th November 2018, 1:04 am

2009

The View from Above. Andy Allan’s notes on three different projects that aerial imagery with OpenStreetMap. Andy and friends hired a small plane and took their own aerial photographs of Stratford-upon-Avon as a demo for a GIS conference. Aid agencies in the Philippines benefitted from OSM and a donation of high quality satellite imagery. Rural Georgia now has hiqh quality images from 2007 thanks to the Department of Agriculture. # 11th December 2009, 9:32 am