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A comment on United Airlines 777 dives after departure. Parent comment

Re:United Airlines 777 dives after departure by closewith on Sunday February 12, 2023 @03:39PM (#34766676)
> Even in the event of a catastrophic aircraft failure, rest assured that millisecond-granularity data of your last moments will be recorded, as you plunge into the sea.

If you're close enough to shore that an ADS-B receiver can record your planes' transmissions.

[ Parent | on HN ]
Re:United Airlines 777 dives after departure by Maxious on Sunday February 12, 2023 @04:13PM (#34767032)
Post MH370, ADS-B data is relayed by Iridium satellites:

> Aireon has deployed a space-based air traffic surveillance system for Automatic Dependent Surveillance-Broadcast (ADS-B) equipped aircraft throughout the entire globe. Aireon is harnessing next-generation aviation surveillance technologies that were formerly ground-based and, for the first time ever, is extending their reach globally to significantly improve efficiency, enhance safety, reduce emissions, and provide cost savings benefits to all stakeholders. Space-based ADS-B surveillance covers oceanic, polar, and remote regions

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Re:United Airlines 777 dives after departure by closewith on Sunday February 12, 2023 @04:17PM (#34767085)
Very true, although latency is much greater, so you may not get the last (hundreds of) milliseconds, as you would with ground-based receivers.
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Re:United Airlines 777 dives after departure by Panzer04 on Sunday February 12, 2023 @04:23PM (#34767149)
Why not? That data would still be transmitted, it would just take a little longer to receive..
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Re:United Airlines 777 dives after departure by closewith on Sunday February 12, 2023 @05:57PM (#34768050)
Yes, excellent point. For some reason, I had in my head that an ack was necessary.
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