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Post by farkstick on Oct 17, 2010 2:40:04 GMT
Coronal hole?
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Post by Bob k6tr on Oct 17, 2010 2:41:48 GMT
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Post by france on Oct 17, 2010 10:00:23 GMT
USAF report 13/10 : New Region 1113 (N17E76) produced several B-class x-ray events, the largest a B4 event at 13/1627Z. IB. Solar Activity Forecast: Solar activity is expected to be very low for the next 3 days (14-16 October). IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron Flux at geosynchronous orbit reached high levels during the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for days 1 and 2 (14-15 October) and quiet to unsettled with a chance for isolated periods of active conditions on day 3 (16 October). The increased activity is expected due to the possible arrival of a CME observed on 11 October.
14/10 : Geophysical Activity Forecast: Geomagnetic field activity is expected to be at quiet to unsettled levels through the period (15 -17 October) due to weak CME effects from a filament eruption on 11October.
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Post by THEO BAKALEXIS on Oct 17, 2010 13:34:42 GMT
A giant magnetic filament over the region 1112. The filament is more stronger than yesterday. Look the comparison between 16 and 17/10/2010. Attachments:
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Post by af4ex on Oct 17, 2010 16:34:31 GMT
FYI,
John the text of your remarks have been moved to the Ham Chatter Forum under the thread Fall 2010.
We need to get utilization up there and the post count for now is very low. So please post ham radio related material in that forum. I try to do as much as I can to post there but there is only so much time in the day and hoards of email to deal with.
Right now the post volume in that forum is so low that people are not scanning it. Once we get past ignition point things will take off so every post is critical.
Bob
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Post by af4ex on Oct 17, 2010 20:00:21 GMT
> John the text of your remarks have been moved > to the Ham Chatter Forum under the thread Fall 2010. Ok, no problem (didn't even know there was such a thread Having said that, I posted it this section because I thought the "non-Hams" might be interested in RF prop as an indicator of solar activity. But I'll take a look at Ham Chatter and see what's going on there.
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Post by france on Oct 17, 2010 20:32:30 GMT
Report 16/10 Region 1112 (S18W28) produced an impulsive M2.9/1N flare at 16/1912Z. Associated with this event were weak, discrete radio emissions ranging from 245MHz - 15,400MHz including a 140sfu Tenflare observed at 16/1916Z. In addition, a Type II radio sweep, with an estimated shock velocity of 929km/s was observed with this event. During the period, Region 1112 grew both in spot count and area and developed beta-gamma magnetic characteristics. The remainder of the disk and limb remained unchanged. IB. Solar Activity Forecast: Solar activity is expected to be at very low to low levels, with a chance for additional M-class events from Region 1112 all three days of the period (17 - 19 October). IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z: The geomagnetic field was quiet at all latitudes. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at predominately quiet levels for days one and two (17 - 18 October). By day three (19 October), unsettled to active levels, with isolated minor storm periods at high latitudes, are expected. The increase in activity is due to a geoeffective coronal hole high speed stream coupled with possible glancing blow effects from the 14 October CME.
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Post by THEO BAKALEXIS on Oct 23, 2010 12:35:09 GMT
Three active regions on the solar surface. All the regions has broken faculaes in a close area. All the regions has big sunspots. The stronger region of all is the 1117 at NE side of the disk.
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Post by csspider57 on Oct 24, 2010 3:52:39 GMT
Three active regions on the solar surface. All the regions has broken faculaes in a close area. All the regions has big sunspots. The stronger region of all is the 1117 at NE side of the disk. Thank you for your observations, Mr. B aka alexis. Hey purple is cool.
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Post by THEO BAKALEXIS on Oct 24, 2010 13:20:08 GMT
My pleasure to give my solar photos to solar cyle 24.com. This is a great solar site. Today the three regions has sunspots but remain in low activity. Only the region 1117 giving small solar flares. The first photo is from AR 1117. The second photo is from AR 1115.
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Post by Bob k6tr on Oct 26, 2010 5:40:09 GMT
Looks like 1117 has really taken off. Jan Alvestad over at Solar Terresterial Activity Report says there is a good chance for an M Class Flare. And right now 1117 in situated in about as Geoeffective Position as it gets. If 1117 lets loose now earth could get socked in the kisser.
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Post by af4ex on Oct 26, 2010 11:21:12 GMT
I haven't looked at many sunspots in detail, but I've read that the spots are normally 'tilted' in a group, such that the trailing spots will be situated further from the equator. en.wikipedia.org/wiki/Joy's_Law_(astronomy) The baseline of 1117 is not tilted at all. Is this a 'violation' of Joy's Law?
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Post by jcarels on Oct 26, 2010 17:06:39 GMT
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Post by af4ex on Oct 26, 2010 17:26:03 GMT
> ...AR 11117 consists of 2 sunspot groups. > An old H group and a new D group... Ok, that makes sense. I've attached a drawing below. Did I "line" the two groups correctly? Attachments:
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Post by Bob k6tr on Oct 28, 2010 2:30:31 GMT
Spot Count for 10/28 is 53. Group 1117 is still adding spots. It's count stands at 21 for 10/28. Groups 1115 and 1119 each have one. 1115 is still a big old spot, 1119 is a barely detectable speck.
1117 now has a Mt Wilson magnetic configuration of Beta. It's McIntosh Classification has gone from EHI to EKC.
The 2000 UTC SFI was 88 (87.7)
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