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Originally posted by Phage
reply to post by NeoVain
The spacecraft are periodically rolled 180º and more often rolled to lesser amounts.
edit on 5/7/2012 by Phage because: (no reason given)
Whatever, the satellites are mysteriously and convienently down cause "they lost track of the sun".
SOHO went into "Emergency Sun Reacquisition" mode on Friday May 4, 2012, caused by a false trigger of the Coarse Sun Pointing Attitude Anomaly Dector. We are working on the recovery of the spacecraft to normal mode. Nominal science operations should be re-established in the next couple of days.
Originally posted by Phage
reply to post by Evildead
There is one spacecraft not sending data and it is not the spacecraft from which the images we are talking about come.
SOHO (not the spacecraft we are talking about) is not down because "they lost track of the sun".
How can you say "Something funny going on out there..." when you know so little about what actually is going on?
edit on 5/7/2012 by Phage because: (no reason given)
Originally posted by Phage
reply to post by NeoVain
They are not rare, the 180º rolls are done several times a year. They do take a while to complete. They are not the only factors which could cause material within the camera to be dislodged.
Why didn't answer my question. Do you think the object is tracking STEREO B? Is that why it remains in exactly the same place in the frame as the spacecraft moves in its orbit?
Originally posted by Phage
reply to post by crankyoldman
Why would it be hermetically sealed? It's in space.
I don't understand this statement. I would think, per earth based systems, that keeping things free of debris is paramount. You say no, in fact, you say because it is space there is even less reason to even try? Which begs the question, why accept dust as a part of the equation if it isn't necessary? Funny they'd spend millions to accept dust as away to possibly waste the millions: what if several large particles get inside and coalesce around each other completely compromising the image? I guess another one can be launched pretty easily.
There are other examples of debris being inadvertently introduced into imaging equipment during assembly.
Yes, the image is processed. The purpose of the instrument is to analyze the corona of the Sun. The purpose of the processing is to accentuate the corona. In order to do that background masks are created which provide a basic background brightness levels (among other things, you can learn more here: cor1.gsfc.nasa.gov...). Without such processing nothing of much interest can be discerned. Here is an example of the raw data from May 3:
You can see the other dust motes spoken of as well as a bunch of other extraneous noise. "Our" dust mote is not visible at all without some drastic adjustments. The problem is that the imager has a very high dynamic range. This makes it possible to record details but it all makes it difficult to extract them.
edit on 5/7/2012 by Phage because: (no reason given)
In this case, an interpretation of something which very heavily relies on the programmers ability to.... well, I guess decide what is to be extracted and write a program to extract it, since he doesn't know what is there, he's kind of guessing
Originally posted by Phage
reply to post by pheonix358
The raw data is there. Learn what to do with it. Go find what you're looking for...or learn what's actually "going on".
Originally posted by eywadevotee
The ball isn't concerning, the ray of plasma spiraling into it is very concerning. Couple this with the large coronal holes and the fact the equipment is "down". I think it matters not if they tell people or not what it likely is. IMHO, we are screwed.