GPS Accuracy Improvements

China’s BeiDou global navigation system was completed in June 2020 provides positioning accuracy of 1.5 to two meters to anyone in the world. GPS World provides details. From March to June 2020, two BDS-3 GEO satellites were launched, while the in-orbit tests of two IGSO satellites, two GEO satellites, and two MEO satellites were completed. …

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Blue Origin and Viasat Want Government to Help Them Against SpaceX

Blue Origin, Lockheed Martin, Northrop Grumman and Draper Laboratory previously lost a bid to build a human lunar lander for NASA to SpaceX. Jeff Bezos’ company bid $6 billion to build one lander but NASA awarded $2.89 billion to SpaceX. Blue Origin’s team and Dynetics filed separate protests with the Government Accountability Office. The GAO …

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3+ Billion Potential SpaceX Starlink Customers

SpaceX Starlink has 1578 satellites in orbit which have combined download capacity of 26 terabits per second. If this download capacity could be perfectly distributed it would enable 260,000 people to have maxed out 100 Mbps simultaneous downloads. Most people will average about 10-20% of their available capacity when they are actively using their systems. …

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SpaceX Successfully Launched Starlink-22 Mission

SpaceX launched another 60 Starlink satellites. SpaceX had about 1,320 Starlink satellites still in orbit. By April, 2021, SpaceX will have deployed the first shell of 1440 satellites. First: 1,440 in a 550 km (340 mi) altitude shell Second: 2,825 Ku-band and Ka-band spectrum satellites at 1,110 km (690 mi) Third: 7,500 V-band satellites at …

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Starlink Phases and Increasing Download Speeds

Starlink will change the angle to cover 500-kilometer diameter spots from 1000 kilometer diameter spots. This will increase the download bandwidth from 100 mbps to 300 mbps. The second-generation Starlink will use a tighter beam and the ka band. It will be several years for the second generation Starlink to be deployed. The first 12000 …

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One Web Satellite Emerges From Bankruptcy and Returns to Full Satellite Production

OneWeb, the Low Earth Orbit (LEO) broadband satellite communications company,is emerging from U.S. Chapter 11 bankruptcy and is restarting production of satellites. A consortium of UK Government (through the UK Secretary of State for Business, Energy and Industrial Strategy) and Bharti Global, has invested $1 billion of new equity to offer broadband connectivity services, via …

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SpaceX Starlink Can Provide Super GPS With a Software Modification

There is an arxiv paper “Fused Low-Earth-Orbit GNSS”, by Peter A. Iannucci and Todd E. Humphreys of the Radionavigation Laboratory, The University of Texas at Austin, that details how low-earth orbit satellites can be modified to provide super-precise GPS. MIT Technology Review indicates that the system would be accurate to 70 centimeters. Simple software upgrades …

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Inflatable Antennas for High Data Rate Satellite and 5G Communications

Freefall Aerospace is a NASA NIAC (NASA Innovative Advanced Concepts) success story. The inflatable antenna system enables big data from cubesats and small low-cost spacecraft. The 3-dimensional phased array antenna technology can provide high data rate communication at virtually any frequency at a fraction of the size and cost of any existing solution. They have …

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Another 60 SpaceX Starlink Satellites and 100 Mbps User Download Speed Tests

SpaceX has tweeted out that Starlink is providing over 100 Mbps download speeds in user tests. They launched the twelfth batch of 60 Starlink satellites. The speed and low latency is fast enough to stream multiple HD movies at once and still have bandwidth to spare. It also can play any online game. Latency tests …

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DARPA and US Space Force Aim to Mass Produce LEO Spy Satellites

DARPA Blackjack aims to demonstrate spy satellite sensors that are low in size, weight, and power, and that can be mass produced to fit on many different buses from many different providers, for less than $2 million per payload. They want Low Earth Orbit spy satellite network performance that is on par with current spy …

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