China Watching

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noosard
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Re: China Watching

Post by noosard » February 18, 2023, 10:19 am

Whistler wrote:
February 17, 2023, 7:46 pm
Not really the case Rick.

There is no need to observe in real time, most things change very little day to day, so a daily scan is plenty good enough. Take Fench sattelites spot 5 and spot 7. They are in o polar orbit north to south. They scan over a 15 % peripheral orbit every 24 hours.

When they appear over PNG each day, they download data to an Alice Springs receiving station from the previous days sensory information while gathering data on the day. Military basis, crop data, coal stacks do not change on a minute by minute basis, a once a day download works fine.
So what do they use the ballons for if not spying ?

US says salvaged sunken remnants of downed Chinese balloon reinforce it was for spying
https://www.theguardian.com/world/2023/ ... for-spying



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Re: China Watching

Post by Whistler » February 18, 2023, 10:32 am

Who suggested the balloons were not used for spying?
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Re: China Watching

Post by the-monk » February 18, 2023, 10:45 am

US says ..... LOL

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Re: China Watching

Post by Whistler » February 18, 2023, 10:51 am

the-monk wrote:
February 18, 2023, 10:45 am
US says ..... LOL
Noo was quoting me, not some US source. I don't recall any US body ruling out spying, can you elaborate.
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Re: China Watching

Post by tamada » February 18, 2023, 11:52 am

Biden called a special press conference specifically to address the growing criticism of 'balloongate'. Since it was one of those 'no media questions' sort of press briefing, he left all existing questions unanswered and the existing speculation unaddressed.

Winning!
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Re: China Watching

Post by Whistler » February 18, 2023, 12:13 pm

I note that there are news articles stating that sensors have been recovered from the wreckage of the balloon. The type of sensor will make it easy to determine if the balloon was a spy craft. At the altitude the craft was flying, temperature sensors would be pretty much worthless, speed sensors ditto as the wind flows at 100,000 feet does not seem to tally with the possibility it was a weather balloon. If the sensors were spectrographic, IR or UV; maybe all of these, you can pretty much say it was a spy balloon.
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Re: China Watching

Post by Earnest » February 19, 2023, 3:44 pm

Anyway, it looks like the Russians have been using balloons too.

https://twitter.com/DefenceHQ/status/16 ... 3187897344
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Re: China Watching

Post by noosard » February 19, 2023, 5:49 pm

Question why send a ballon if not for spying

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Re: China Watching

Post by tamada » February 19, 2023, 6:44 pm

Whistler wrote:
February 18, 2023, 12:13 pm
I note that there are news articles stating that sensors have been recovered from the wreckage of the balloon. The type of sensor will make it easy to determine if the balloon was a spy craft. At the altitude the craft was flying, temperature sensors would be pretty much worthless, speed sensors ditto as the wind flows at 100,000 feet does not seem to tally with the possibility it was a weather balloon. If the sensors were spectrographic, IR or UV; maybe all of these, you can pretty much say it was a spy balloon.
Commercial weather satellites also record IR and UV data.
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Re: China Watching

Post by Whistler » February 19, 2023, 6:58 pm

tamada wrote:
February 19, 2023, 6:44 pm
Whistler wrote:
February 18, 2023, 12:13 pm
I note that there are news articles stating that sensors have been recovered from the wreckage of the balloon. The type of sensor will make it easy to determine if the balloon was a spy craft. At the altitude the craft was flying, temperature sensors would be pretty much worthless, speed sensors ditto as the wind flows at 100,000 feet does not seem to tally with the possibility it was a weather balloon. If the sensors were spectrographic, IR or UV; maybe all of these, you can pretty much say it was a spy balloon.
Commercial weather satellites also record IR and UV data.
I have never worked on weather balloon systems, but suspect that the granularity of captured sensory information is very different.

Sensors on weather balloons do not do what high resolution satellites. These specialised sensors can for instance pick out an individual marijuana plant. Images like these were used to locate pot plants in the Griffith area planted around vineyards. Weather balloons are unlikely to be equipped with such sensors.

The data on the French satellites where my project was involved in categorising and storing data, was pretty high level, military sats are even more precise. If they can recover stored image data from the wreckage, a lot more will be known
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Re: China Watching

Post by tamada » February 19, 2023, 7:06 pm

Whistler wrote:
February 19, 2023, 6:58 pm
tamada wrote:
February 19, 2023, 6:44 pm
Whistler wrote:
February 18, 2023, 12:13 pm
I note that there are news articles stating that sensors have been recovered from the wreckage of the balloon. The type of sensor will make it easy to determine if the balloon was a spy craft. At the altitude the craft was flying, temperature sensors would be pretty much worthless, speed sensors ditto as the wind flows at 100,000 feet does not seem to tally with the possibility it was a weather balloon. If the sensors were spectrographic, IR or UV; maybe all of these, you can pretty much say it was a spy balloon.
Commercial weather satellites also record IR and UV data.
Not at high resolutions. Sensors on weather balloons do not do what high resolution satellites. These specialised sensors can for instance pick out an individual marijuana plant. Images like these were used to locate pot plants in the Griffith area planted around vineyards. Weather balloons are not equipped with such sensors
So the presence of these sort of sensors isn't exclusive to spy balloons or weather satellites. It's good to have a weather balloon and weather satellite expert to guide us. The Biden administration and the Pentagon still don't seem to have a clue.
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Re: China Watching

Post by noosard » February 19, 2023, 7:36 pm

So for us uneducated in this field were or was it a spy ballon

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Re: China Watching

Post by Whistler » February 19, 2023, 10:34 pm

I have posted my thoughts, happy to leave it at that. I don't know, you don't know, I am not part of the review of what has been found so know little more than anybody else.

My comments start and end with a project I had a lead input on the design of categorising and retrieval of data from 3 satellites in a polar orbit over Australia. From that I have some informed views. End if story.

You and Tam break your necks trying to trap me into making comments beyond this sphere. Not to learn, but to find a ch1nk so you can ridicule. Do you seriously think I will fall into that trap?
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Re: China Watching

Post by Earnest » February 20, 2023, 12:14 am

Not if you observe the Dunning-Kruger effect definitions. We can leave it until Sleepy Joe tells us what it was being used for (as Khun Shado previously said).

Bloody interesting though, isn't it. Those Chinese Communists are a rum bunch.
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Re: China Watching

Post by mak » February 23, 2023, 5:04 am

U2 plane spying on Chinese spy balloon.
Attachments
Spy vs spy.jpg
Spy Balloon.jpg

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