VK3UKF QSL.NET website

Friday 29th September 2006.
The SOHO information page.

Monday 6th March 2006.
Possible comet detonation in Sun's corona.
Update 17th March 2006.

I have heard from the SOHO team, that the anomaly is a CCD artifact, possibly caused by error correcting software.

At the 3 O'Clock position is a small black dot, this is the anomaly in question.

Right click here, then 'save target as' to download Windows media movie of the anomaly, to your computer. I have had many reports of problems with this file. More bad than good, although some reported no problems. Codecs, I suspect. I used Windoze movie maker and it just kept changing the aspect ratio. Instead of a nice round Sun, it was flattened, and some had problems downloading, some had problems playing, only the first 1 second would work. This is a 5 second movie clip and the download size is 1.3 MB

In the movie you will see clips from the SOHO spacecraft in EIT 171 (blue), 284 (yellow) and 304 (orange) Angstroms.
As well as LASCO C3 (blue, with sun blotted out to reveal solar wind) that shows one of the larger cometary fragments on a death dive into the Sun at about the 4-5 O'Clock position.
Several comets have been identified for July 2005 using this SOHO data by other people.
They appear to be from a known family of comets in a particular orbit. A bit like a toroid of icy debris that just keeps falling into the Sun. Same bat place, same bat channel.

The comets groups listed on the SOHO website are, Kreutz-group, Marsden-group, Meyer-group and the Kracht-group. These appear to be groups of small comets in similar orbits.
See the comet reporting form for information on these groups and their orbits as viewed from the SOHO spacecraft.
http://ares.nrl.navy.mil/sungrazer/index.php?p=cometform

I am placing the original files that I downloaded from the NASA-SOHO website online, as they are higher resolution than my movie clip. I am working and learning about the best software for this particular task. Making nice movie clips from SOHO data.

ORIGINAL NASA-SOHO FILES.

EIT-171 (Blue) Right click here, then 'save target as' to download the original NASA-SOHO file. See the anamolous spot near the end of the clip, near the Sun's limb at the 3 O'Clock position. This is a 3 second high resolution movie clip and the download size is 1.9 MB

EIT-284 (Yellow) Right click here, then 'save target as' to download the original NASA-SOHO file. See the anamolous spot near the end of the clip, near the Sun's limb at the 3 O'Clock position. This is a 3 second high resolution movie clip and the download size is 2.7 MB

EIT-304 (Orange) Right click here, then 'save target as' to download the original NASA-SOHO file. See the anamolous spot near the end of the clip, near the Sun's limb at the 3 O'Clock position. This is a 3 second high resolution movie clip and the download size is 3.2 MB

LASCO C3 (Blue) Right click here, then 'save target as' to download the original NASA-SOHO file. See one of the cometary fragments near the end of the clip, look for a small whiteish dart, on a collision course with the Sun at the 4 or 5 O'Clock position. Jupiter is also visible as the over bright flaring spot that moves behind the sun. The apparent saturn rings are an effect of its brightness. This is a 4 second high resolution movie clip and the download size is 1.5 MB

When downloading the most recent data from the SOHO website, in the form of mpegs, the filenames are as such, current_eit_171.mpeg and current_c3.mpeg, with a posible variation of mpg instead of mpeg as an file extension. I added the date to the filenames when I obtained them. e.g.current_eit_284-25-07-2005.mpeg The SOHO archives of this data have filenames such as, 050718_c3.mpeg or mpg and 050718_eit_195.mpeg or mpg the date is encoded in the filename, e.g. 050718 is 2005, July 18.

I have located EIT 195 data for this period that the anomaly appears on the above data.
I can not see the anomaly in this EIT 195 data set at all.

EIT-195 (Green) July 17 2005. Right click here, then 'save target as' to download the original NASA-SOHO file. This is a 3 second high resolution movie clip and the download size is 1 MB

EIT-195 (Green) July 18 2005. Right click here, then 'save target as' to download the original NASA-SOHO file. This is a 3 second high resolution movie clip and the download size is 1 MB

EIT-195 (Green) July 19 2005. Right click here, then 'save target as' to download the original NASA-SOHO file. This is a 3 second high resolution movie clip and the download size is 1 MB

I have contacted the SOHO analysis team regards this anomaly.

LINKS FOR MORE SOHO DATA.

The SOHO comets, sungrazer page. Lists of comets discovered so far using SOHO data are also available, arranged in years. Select year from comet group and year menu on left hand side of the page.
http://ares.nrl.navy.mil/sungrazer/

Found a comet using SOHO data, report it here.
http://ares.nrl.navy.mil/sungrazer/index.php?p=cometform

For the latest SOHO data in mpeg format for the last few days, click the link below.
http://sohowww.nascom.nasa.gov/data/realtime/mpeg/

For the archives of SOHO daily data in mpeg format, click the link below.
http://lasco-www.nrl.navy.mil/daily_mpg/

To search the SOHO EIT image archives for data in FITS image format, not maintained in the movie archives, click the link below.
You will then have to make your own movie from the stills. After you have submitted your request for data for a particular time period, you will be shown an ftp directory with a tar.gz type archive file, this file contains your data that you requested. Winrar will unzip it.
http://umbra.nascom.nasa.gov/eit/eit-catalog.html

A page of viewer programs for FITS format images. FITS Image Viewers and Format Converters.
http://fits.gsfc.nasa.gov/fits_viewer.html

The U.S. Naval Research Laboratory.
Large Angle and Spectrometric Coronagraph Experiment (LASCO), including the LASCO data archive. click the link below.
http://lasco-www.nrl.navy.mil/

SOHO/LASCO Comets, click the link below.
http://lasco-www.nrl.navy.mil/comets.html

Dr SOHO's SOHO FAQ:
http://sohowww.nascom.nasa.gov/explore/faq.html

Dr SOHO's SOHO FAQ: The SOHO Spacecraft.
http://sohowww.nascom.nasa.gov/explore/faq/spacecraft.html

RELATED
A list of objects at lagrangian points. SOHO spacecraft location explanation. Includes asteroids grouped around planets.
http://www.answers.com/topic/list-of-objects-at-lagrangian-points
and
http://en.wikipedia.org/wiki/List_of_objects_at_Lagrangian_points

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