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SOHO C2 - Out of alignment
How do,
Looking at the current picture on the SOHO LASCO C2 coronograph... URL:http://sohowww.nascom.nasa.gov/data/realtime/ javagif/gifs_small/20030811_1506_c2.gif [A standards compliant newsreader should be able to put that URL back together, in theory, but if not readers'll have to do it by hand] It would seem the centre disc is presently out of alignment with the sun. Does anyone know if this disc simply stop the sun saturating the sensor, does it happen often, or could this misalignment hurt (burn out) the sensors? If the later, do the folk at SOHO even know (this is only present on the most recently web-published picture)? (Sorry for this post; I'd rather risking pepping up and mentioning this here, just in case it really IS a 'someone should know' situation, but I don't want to bother the SOHO mob with an e-mail unless I can be sure that there's very good reason to do so.) Ta-ra, Julie -- Julie Brandon http://www.computergeeks.co.uk/ __________________________________________________ _____________________________ NOTE: "news.cis.dfn.de" -- access to this news server changing, for info see |
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SOHO C2 - Out of alignment
In article ,
Julie Brandon wrote: How do, Looking at the current picture on the SOHO LASCO C2 coronograph... URL:http://sohowww.nascom.nasa.gov/data/realtime/ javagif/gifs_small/20030811_1506_c2.gif It would seem the centre disc is presently out of alignment with the sun. Does anyone know if this disc simply stop the sun saturating the sensor, does it happen often, or could this misalignment hurt (burn out) the sensors? If the later, do the folk at SOHO even know (this is only present on the most recently web-published picture)? I've seen this beforte, but not for a while. LASCO is pretty robust, so I'd not worry overmuch. I will drop a mail to the LASCO data manager though (who I've known for nearly 20 years, so it's easy to be informal about it). I've no doubt that they know about it, but it'll be interesting to find out what's going on. Thanks for posting that - being (notionally) on holiday I'd have missed it otherwise. -- Andy Breen ~ Interplanetary Scintillation research group Physics Department, UW Aberystwyth "When I was young I used to scintillate now I only sin 'til ten past three" (Ogden Nash) |
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SOHO C2 - Out of alignment
In article ,
Julie Brandon wrote: How do, Looking at the current picture on the SOHO LASCO C2 coronograph... URL:http://sohowww.nascom.nasa.gov/data/realtime/ javagif/gifs_small/20030811_1506_c2.gif It would seem the centre disc is presently out of alignment with the sun. Does anyone know if this disc simply stop the sun saturating the sensor, does it happen often, or could this misalignment hurt (burn out) the sensors? If the later, do the folk at SOHO even know (this is only present on the most recently web-published picture)? I've seen this beforte, but not for a while. LASCO is pretty robust, so I'd not worry overmuch. I will drop a mail to the LASCO data manager though (who I've known for nearly 20 years, so it's easy to be informal about it). I've no doubt that they know about it, but it'll be interesting to find out what's going on. Thanks for posting that - being (notionally) on holiday I'd have missed it otherwise. -- Andy Breen ~ Interplanetary Scintillation research group Physics Department, UW Aberystwyth "When I was young I used to scintillate now I only sin 'til ten past three" (Ogden Nash) |
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