Tianwen-1 attitude in Mars orbit • Hacker News Board

Re: Tianwen-1 attitude in Mars orbit

#21

Post by zokier » Wed, Sep 15, 2021, 10:47 AM UTC

GravitasFailure wrote: post #11

tastyfreeze wrote: post #10

Earlier quoted context omitted.

Thank you for sharing. NOAA requiring a license for images of Earth is infuriating. Do they require other countries to get a license as well?

My understanding is it's intertwined with national security issues. NOAA doesn't have the ability to demand a license from other nations, though there may be some treaty obligations they adhere to.

USG has been trying to put the satellite imagery genie back in the bottle the past 30 years with mixed results at best. I suspect they are slowly realizing that it is a losing battle.

https://www.wired.com/story/how-the-government-controls-sens...

Re: Tianwen-1 attitude in Mars orbit

#22

Post by nkoren » Wed, Sep 15, 2021, 11:09 AM UTC

Out_of_Characte wrote: post #13

Its supposed to me altitude right? not attitude which is a (emotional) disposition towards something. a google search reveils no alternative meaning yet its written wrong 17 times.

Googling tip: if what you're looking for is the definition of a word, try typing:

  define:attitude

You'll see that the third definition which comes up is: "the orientation of an aircraft or spacecraft, relative to the direction of travel."

Re: Tianwen-1 attitude in Mars orbit

#23

Post by ClumsyPilot » Wed, Sep 15, 2021, 12:42 PM UTC

simsla wrote: post #20

pjc50 wrote: post #18

Earlier quoted context omitted.

https://en.wikipedia.org/wiki/Attitude_control > a google search reveils no alternative meaning You could file this under "yet another deterioration of google effectiveness by personalisation of search results", except it's not even true? I put "attitude" in and it gave me a dictionary expand-o-box with "3. the orientation of an aircraft or spacecraft, relative to the direction of travel."

Could still be due to search personalisation. I get programming results even for non programming terms. I am pretty confident that's not the case for my mom. It stands to reason that people's search results could be wholly uninformative if Google thinks the subject matter is unlike what you usually read.

The other day I was looking for official website of Moldovan government to find out their covid rules.It took me an hour to find, it was below UK and US gov pages about Moldova and below random media articles and blogposts.

There are also many times when you search an official UK government service, like applying for a driving lisence or filing taxes, and the first page is just full of scams. This has been goung on for years, they should pin the official resources to the top for cases like this.

Re: Tianwen-1 attitude in Mars orbit

#24

Post by MisterBiggs » Wed, Sep 15, 2021, 3:47 PM UTC

I was wondering how this data was gathered since to my knowledge China has been pretty secretive about their space missions (compared to NASA at least). It looks like the data came from here http://www.r00t.cz/Sats/Tianwen1 and I think its surprising how easy it was to break down the data. I would have assumed it would have been heavily obfuscated / encrypted.

Re: Tianwen-1 attitude in Mars orbit

#25

Post by fit2rule » Thu, Sep 16, 2021, 12:12 PM UTC

pjc50 wrote: post #18

Out_of_Characte wrote: post #13

Its supposed to me altitude right? not attitude which is a (emotional) disposition towards something. a google search reveils no alternative meaning yet its written wrong 17 times.

https://en.wikipedia.org/wiki/Attitude_control > a google search reveils no alternative meaning You could file this under "yet another deterioration of google effectiveness by personalisation of search results", except it's not even true? I put "attitude" in and it gave me a dictionary expand-o-box with "3. the orientation of an aircraft or spacecraft, relative to the direction of travel."

File under: use dictionaries, not google.