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Post by Bob k6tr on Dec 21, 2010 21:41:17 GMT
SDO's latest image was produced Sunday
JSOC is not processing dataTue, 21 Dec 2010
The SDO JSOC has experienced a disk controller failure. The near-real-time images will not be produced until the controller can be replaced. Stay tuned for updates
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Post by lsvalgaard on Dec 22, 2010 5:50:24 GMT
SDO's latest image was produced Sunday JSOC is not processing dataTue, 21 Dec 2010 The SDO JSOC has experienced a disk controller failure. The near-real-time images will not be produced until the controller can be replaced. Stay tuned for updates The controller is fixed, but there is more repair work for the next 3+ days. |
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Post by af4ex on Dec 24, 2010 1:36:04 GMT
I might be jumping the gun again, but I think the current lull has bottomed out. SFI is back to 80 and the Xray background flux is rising again. I see some new specks in the NE quadrant and the speck mentioned earlier in the SW quadrant Attachments:
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Post by af4ex on Dec 24, 2010 1:41:57 GMT
... in any case old AR1131 has rotated into view of STEREO Behind, and will rotate into Earth view in about a week. If it can hold out that long. The fact that we can still see it in 195A EUV means that it's still magnetically active. But as Leif pointed out we have no direct way to measure its field strength, so its visibility as a sunspot is uncertain. Attachments:
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Post by af4ex on Dec 24, 2010 3:29:22 GMT
New spots on the NE limb. Attachments:
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Post by af4ex on Dec 24, 2010 4:08:43 GMT
Seeing some 17Ghz microwave energy from the SW speck. Nothing remarkable, but the Sun is so quiet that it stands out. Might be responsible for the recent slight increase in SFI. Attachments:
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Post by af4ex on Dec 24, 2010 22:15:21 GMT
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tsh
Level 2 Rank
Posts: 69
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Post by tsh on Dec 25, 2010 10:34:52 GMT
403. Maybe a server overload caused by a WUWT thread and people having no work to do? Whatever it is, hope noone has to work on it today!
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Post by jcarels on Dec 26, 2010 10:50:44 GMT
There are 2 new groups visible (since yesterday). Since SOHO and SDO are out, one have to look at the images from GONG: gong2.nso.edu/dailyimages/ or use your own telescope. Edit: just had a look for myself and there are 3 groups visible. |
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Post by af4ex on Dec 26, 2010 17:24:59 GMT
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Post by Kevin VE3EN on Dec 26, 2010 20:41:00 GMT
New spots on the NE limb. Those are not spots, they are burnt out pixels. |
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Post by af4ex on Dec 26, 2010 21:26:13 GMT
> Those are not spots, they are burnt out pixels.
I was wondering why they weren't moving. Tnx.
:-\
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Post by af4ex on Dec 28, 2010 0:51:58 GMT
FYI, Some old sunspots are inching towards the eastern limb from the far side. I've been tracking these, thanks to the Raben far-side maps and STEREO A&B. www.raben.com/maps/stereo-ssc.nascom.nasa.gov/beacon/beacon_secchi.shtmlAR1131, was the largest sunspot seen so far in SC24, also was continuously bright as a flare in 17Ghz microwaves. AR1121 (formerly AR1112) now making its fourth appearance Earth-side. And its companion 1123. Recall that it produced a monster filament 700k miles long if I recall correctly (in addition to a number of C and M class Xray flares) Here's what they looked like 3 weeks ago (see page 29)  You can still see them in 195A EUV light, weakened but still magnetically active. Old 1121 in particular is showing a bright spot. Will they still be visible as sunspots? We'll find out in a few days, when they cross over the -90 longitude. Hopefully will liven things up a bit. Attachments:
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Post by af4ex on Dec 28, 2010 1:05:40 GMT
... I think we can already see the Xray glare of old AR1121, even though it's still on the far side! Note, in general, how dim the sun looks in Xrays, compared to 3 weeks ago. A "global Xray recession"? :-| [But remember that Xrays make up a very tiny slice of the total solar radiance. ] Attachments:
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Post by af4ex on Dec 28, 2010 20:49:00 GMT
A K5 geomagnetic storm occurred a few hours ago, around 1300Z-1900Z. Appears to have subsided now. This seems to be a surprise. No storms were forecast by solen based on coronal hole activity. Anybody know the cause? CME? Attachments:
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