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Post by Bob k6tr on Sept 2, 2012 23:38:41 GMT
YOU GUYS MAN ! ! ! ! You call yourselves DXers ? You get a 3 Day Weekend and you go on vacation. The West Coast was working into Europe on 10 meters today (Aug 31) for the first time this Solar Cycle and you take time off ! And this was one of the very few Rare occasions where the Pacific Northwest had a Big Leg Up on the Californians. Signs were brewing a week ago this would happen. Right now the 304A reading is the highest it's been since last Fall and considerably higher than what it was last month. Where have you been hiding Bob ? i was working west coast last fall / autumn 2011 . ;D
also worked during 2011 . E51CG / FO5NL / HC8GR To name but a few
could have worked more but to busy earning a living
Thanks Daz G0WCKBeen busy with family matters Daz. Where on the West is another matter. The bands normally open from South to North. When I lived in Portland Oregon 13 years ago there were times I could hear stations in Southern California running Europe and or JA without hearing a so much as a peep.
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Post by Bob k6tr on Sept 2, 2012 23:34:45 GMT
YOU GUYS MAN ! ! ! ! The West Coast was working into Europe on 10 meters today (Aug 31) for the first time this Solar Cycle and you take time off ! Are you sure about that? Last fall was far better than current conditions on 10 from EU to 6 and 7 We're are still in Summertime Conditions. Right now is when we see the first stirrings of Fall Season F 2 conditions on 15, 12 and 10. They are much further along then they have been for many years. In a week or two expect 10 to be cookin !
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Post by Bob k6tr on Sept 2, 2012 16:55:58 GMT
Sorry I was working all day yesterday. Ive got 4 - 6 years left before I retire. Im on this morning though and 12 is already open and Im sure 10 will be soon. Hi Ricky Just pulling your leg. Conditions were both very good and very wierd Friday Saturday was pretty much a dud. The Pt Arguello (Lompoc CA) Ionosonde readings for Sunday show promise.
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Post by Bob k6tr on Sept 1, 2012 4:31:38 GMT
YOU GUYS MAN ! ! ! ! You call yourselves DXers ? You get a 3 Day Weekend and you go on vacation. The West Coast was working into Europe on 10 meters today (Aug 31) for the first time this Solar Cycle and you take time off ! And this was one of the very few Rare occasions where the Pacific Northwest had a Big Leg Up on the Californians. Signs were brewing a week ago this would happen. Right now the 304A reading is the highest it's been since last Fall and considerably higher than what it was last month.
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Post by Bob k6tr on Aug 30, 2012 4:49:32 GMT
Hi Leif
Things been pretty quiet around these parts.
No question but an interesting observation.
Right now (Aug 30) we are near the top of the 27 Day Rotation. At this time last month the 10cm SFI stood at 160. This time around it is struggling to break 120. That figure is astonishingly low for the peak of the rotation. In cycles gone by the 27 Rotation would peak well over 200, most times breaking 225.
Now for the corker ! Last month the 304A Photon Count from SDO EVE peaked at 161.9. As I type this out on Wednesday Night it is 161.0 . Despite the SFI being down almost 50%. The Sun is a very messy place indeed. ;D
Bob
Update.....As of Thursday Morning (1500 UTC) the 304A Photon Count stands at 165 which is higher than what it was at the peak of the last 27 Day Rotation.
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Post by Bob k6tr on Aug 20, 2012 23:37:56 GMT
Leif have you seen this article ? www.spaceflightnow.com/news/n1208/18heliophysics/It sounds like the Powers-that-be are trying to send a cryptic message. As I see it the two big Heliospheric RESEARCH Missions schedules are Solar Orbiter and Solar Probe and neither of those two will launch before 2017 and both will become operational some years later. The other missions they talk about will return data useful for other disciplines. Like RBSP, scheduled to launch Friday. It would seem justifiable to take a whack out o fthe Earth Sciences budget.
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Post by Bob k6tr on Aug 20, 2012 20:08:07 GMT
Leif does the USAF, or anyone else for that matter, compile records on the rate at which new regions are numbered versus when they fade and dissappear ? What I'm think of is a Net Formation of spot regions. When more form than those that disappear the number is positive. When the disappear faster than they form it's negative. Such an indicator would give us some clues about where we stand in the Cycle although this figure would have to be averaged to provide a degree of reliability.
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Post by Bob k6tr on Aug 8, 2012 3:09:22 GMT
Leif the GONG Farside page is showing a hit for a new spotgroup in the Northern Hemisphere at a very high lattitude. (+30 degrees) One (at least I) would not rot expect this at the peak of the solarcycle. What do you make of this ? Will this peak be a long drawn out affair like the last solar minimum ?
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Post by Bob k6tr on Aug 3, 2012 15:53:39 GMT
Looking at the most recent plots, I can imagine that SSN is modulating the curve slightly (so the tail of cycle 23 had an exaggerated weakening trend, and 2010-2012 started out hinting that the trend had weakened. I wonder if (a) this has any physical significance, and (b) anyone cares to use this to fit a curve (although that probably has no real value). There is a slight solar cycle modulation. You can see that better in this plot that shows the effect in the magnetic field directly: What is plotted is the ratio between the observed SSN and that calculated from the Mount Wilson Plage Strength Index, see obs.astro.ucla.edu/150_data.html#plotsThe boxes shows the transition between cycles. Looking at the plot of Blue Dots it would appear the slope has flatten out or turned slightly positive since 2005. The Violet dots have too much scatter to discern what the slope is. Bob
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Post by Bob k6tr on Jul 23, 2012 5:32:39 GMT
Kevin
Congrats on 20M visitors
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Post by Bob k6tr on Mar 25, 2012 18:34:29 GMT
Do they ever measure/observe based on the magnetogram? For example, they have regions today that look like dipoles on the magnetogram that haven't formed visible spots (some aren't even plages) - do they have a normal orientation of the magnetic field that would reveal where the umbra would be if it had one? Can they measure that intensity? Are there ever regions that have greater than 1500 gauss that don't form sunspots? In order not to be biased, Livingston does not look at magnetograms. But it is one of my projects to do just that. So much to study so little time. Modern era data gathering is giving us a feast to work with. I've been watching the WSO Polar Field Measurements closely over the last year. It appears that once again we have 2 south poles on the sun. Last year at this time the old North Pole made a very abrupt swing southward only to give it back. The old South Pole has remained sluggish and lethargic through out the period. Is this of any significanve ?
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Post by Bob k6tr on Jan 22, 2012 19:16:23 GMT
The number of Coronal Holes has been much lower than we have seen at the peak of the cycle when compared to the last several cycles. Also the size of the Holes have been pretty anemic. it would be helpful if you could find a plot of coronal holes [number and sizes] over the last several cycles. I don't know of any such plot and would be interested in seeing one. Hi Leif Like yourself I have never seen plot of Coronal Numbers and sizes But I have followed Jan Alvestad's webpage since 1997 and watched the Active Solar Regions Map. Jan holds about 10 Years of back reports and purges out the rest. The Coronal Holes visible on those pages during the Cycle 23 Solar Max were much larger than what we see right now. Check out the Map on : www.solen.info/solar/old_reports/2003/january/20030119.htmlThat shot was taken of a Coronal Hole 2 Years after the peak of the Cycle. Compare that to what we are seeing today. The Coronal holes at the Peak were considerably larger to what is seen in that photo. Yes this does not represent any type of rigorous analysis but to me it would seem there is more than sufficient anecdotal data to warrant such a study. Regarding Jan's website I dn't know if he purges his data all together or archives it offline. The USAF also published a considerable amount of Solar Data from their earthbound network of observatories in the late 90s. But all of that pretty much went away shortly after SOHO came online. Coronal Hole Data they have from Cycles 21 and 22 would shed a great deal of light on the subject but I don't have a clue as to how to obtain it, if that even is possible.
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Post by Bob k6tr on Jan 18, 2012 19:14:07 GMT
it is low because the solar wind speed is low as it often is near solar maximum. A similar thing happened e.g. in 1980. The number of Coronal Holes has been much lower than we have seen at the peak of the cycle when compared to the last several cycles. Also the size of the Holes have been pretty anemic.
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Post by Bob k6tr on Nov 10, 2011 3:31:53 GMT
The NOAA Solar Region Summary shows a Sunspot Count of 208 for Nov 10. This should be a new record for SC24
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Post by Bob k6tr on Nov 8, 2011 1:36:31 GMT
AR 11339 posted a spot count of 45 for Nov 8 according to the USAF Report
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