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France's aircraft carrier located in real time by Le Monde through fitness app
141–150 of 571 posts
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#142Earlier quoted context omitted.
You would only need to find it once, potentially at a port, and then you can follow it.
This capability is available only to few countries on planet. Not all of them.
Billy Boy from the Island can use commercial satellites to map mud huts for his vaccine NGO, i'm sure any nation state can find a few quid to locate a war ship.
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#143Earlier quoted context omitted.
I admit I'm incredibly naive on this subject, but what makes it so hard to track an object as large as an aircraft carrier when starting from a known position such as a naval port?
As described above the issue would be continuous observation, not how to follow it assuming you never lose sight of it.
You certainly can't do continuous observation but even just with commercial satellite offerings you can get pretty close.
For example nowadays Planet Labs [1] offers 30-50cm resolution imaging at a rate of one image or 120sec video stream every 90 minutes over a given 500 km^2 region. There is no situation where an aircraft carrier is going to be capable of evading a commercial satellite offering with that frequency and resolution. Once you know approximately where it is or even where it was in the semi-recent past, it's fairly trivial to narrow in and build a track off the location and course.
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#144Earlier quoted context omitted.
If Charles de Gaulle turns off AIS, how does North Korea find it?
https://en.wikipedia.org/wiki/Malligyong-1
That's in a sun synchronous orbit so would only over fly once a day so the task does get a lot tougher. A few days of bad weather and you've largely lost the ship.
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#145Earlier quoted context omitted.
The US has been funding terrorists for longer than the current state of Iran (or even its predecessor) has been around: https://en.wikipedia.org/wiki/1953_Iranian_coup_d%27état#Uni... and we still haven't nuked anybody in anger since 1945.
Funding coups is not the same thing as funding terrorists. Terrorists attacks and kills civilians, coups just targets leaders. If Iran funded coups in nearby countries that would be a sane thing to do, funding terrorists is what makes them an insane force that you can't predict what they will do with a bomb. Russia also funds coups, not terrorists. You didn't see a lot of suicide bombings and such in Ukraine before R…
OK then how about https://en.wikipedia.org/wiki/Contras#U.S._military_and_fina...
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#146Cruising speed of Charles de Gaulle is 27knots which would give the runner a pace of around 1:10mins/km depending on direction. That would really screw up your Strava stats
Reminds me of Fitbit using heartrate to approximately guess calories used.
I'm told with a lengthy night on uppers can you can get your 24/hr burn up to the 7000-10000.
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#147Re: France's aircraft carrier located in real time by Le Monde through fitness app
#148Earlier quoted context omitted.
Mediterranean maybe (although I'm not sure), but it's actually very hard to find a ship, even as large as an aircraft carrier, in the ocean. The empty space is just too big. Satellites have hard time taking pictures of every square mile of a sea to find any ship, yet alone the one you need.
I really don’t want to work for the defense industry, but I have to admit that they do have very fun problems to solve. You know there are people at NRO who are dedicated to ship tracking via satellite. I assume they can easily track ships without cloud cover, but how do they do it when it’s cloudy? Heat signatures? Synthetic Aperture Radar? Wake detection?
I'd be mildly surprised if they not using SAR for this all the time, not only during cloud cover. The Soviet Union was using radar satellites (the RORSATs) to track carriers decades ago.
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#149Is an aircraft carrier's location supposed to be secret? Pretty hard to hide from a satellite I'd imagine.
I would have thought so too but Naval Gazing has a short series [0] on why it's not as dire as one might think. An aircraft carrier's location being "secret" in this case is just one layer of the survivability onion [1] anyhow. (Caveat that as someone who takes a casual interest in this, I can't vouch for accurate this is at all.) [0] https://www.navalgazing.net/Carrier-Doom-Part-1 [1] https://www.goonhammer.com/star…
It is important to note the Naval Gazing article is specifically talking about the difficulties of actually targeting a ship for a successful kill rather than just tracking it. It's in response to the idea that satellites plus missiles would mean carriers could be instantly destroyed in a first round of hostilities with a sufficiently prepared opponent. Tracking is a lot easier to do than getting data fresh and precise enough to hit the ship with no other tools (eg ships already nearby that can get a live precise track vs terminal detection and guidance on the missile itself).
Also the capabilities of commercial and government geospatial systems has only continued to improve in the ~decade since the article was written.
Re: France's aircraft carrier located in real time by Le Monde through fitness app
#150Earlier quoted context omitted.
This capability is available only to few countries on planet. Not all of them.
You can rent access to nearly real-time custom satellite targeting for <$3k per image. That means while you're correct that not all countries can afford it, most can.
What if US government bans US-based companies from selling pictures within area where carrier operates?
(of all "national security" reasons these is one of more reasonable ones)