Tohban Report 2009-02-18
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(New page: {{Infobox Tohban Report| |start_date = 11 Feb 2009 |end_date = 18 Feb 2009 |tohban_name = Hugh Hudson |tohban_email =hhudson@ssl.berkeley.edu |next_tohban = Hugh Hudson }} == General == ...) |
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== General == | == General == | ||
| - | Two nice CMEs from the tiniest of flares, but with all of the bells and whistles (waves, dimmings, sigmoids) from an old-cycle regions. RHESSI observed most of one of them. | + | Two nice CMEs from the tiniest of flares, but with all of the bells and whistles (waves, dimmings, sigmoids) from an old-cycle regions. RHESSI observed most of one of them ([http://sprg.ssl.berkeley.edu/~tohban/browser/?show=grth+qlpcr&date=20090213&time=055718 a B3]), but only got a [http://sprg.ssl.berkeley.edu/~tohban/browser/?show=grth+qlpcr&date=20090212&time=155959 glimpse] of the other, about B5]. Both of these events had very nice CMEs - sigmoid, dimming, wave, the works. |
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| + | The figure below shows how the solar minimum appears now. This updates the plot from a [http://sprg.ssl.berkeley.edu/~tohban/nuggets/?page=article&article_id=75 Nugget] posted in May 2008. | ||
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| + | [[Image:F10.7.jpg|500px|thumb|center|The 10-cm fluxes around solar minima, showing how our current one (red) sticks out like a sore thumb!]] | ||
== Data Gaps and problems == | == Data Gaps and problems == | ||
9-Feb 01:15 + 2 orbits, bad data | 9-Feb 01:15 + 2 orbits, bad data | ||
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| + | 17-feb-09 02:45, bad data | ||
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| + | 18-feb-09 02:15, bad data | ||
== Glitches == | == Glitches == | ||
| - | The fast soft events (3-6 and 6-12 keV) that looked like flares, weren't. | + | An unusual period of rapid background variability at high energies happened 8-Feb - see [http://sprg.ssl.berkeley.edu/~tohban/browser/?show=grth+qlpcr+monfs+monrs&date=20090208&time=111159 here]. I can't see any sign of this in the monitor plots and am perplexed. |
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| + | The fast soft events (3-6 and 6-12 keV) that looked like flares, weren't. They're no doubt due to arcing in one detector. See [http://sprg.ssl.berkeley.edu/~tohban/browser/?show=grth+qlpcr&date=20090213&time=055718 here] for an example. | ||
[[Category:Tohban Report]] | [[Category:Tohban Report]] | ||
[[Category:Tohban]] | [[Category:Tohban]] | ||
Revision as of 20:16, 18 February 2009
| Tohban Reports | |
|---|---|
| Start Date: | 11 Feb 2009 |
| End Date: | 18 Feb 2009 |
| Tohban: | Hugh Hudson |
| Tohban email: | hhudson@ssl.berkeley.edu |
| Next Tohban: | Hugh Hudson |
| List all reports | |
General
Two nice CMEs from the tiniest of flares, but with all of the bells and whistles (waves, dimmings, sigmoids) from an old-cycle regions. RHESSI observed most of one of them (a B3), but only got a glimpse of the other, about B5]. Both of these events had very nice CMEs - sigmoid, dimming, wave, the works.
The figure below shows how the solar minimum appears now. This updates the plot from a Nugget posted in May 2008.
Data Gaps and problems
9-Feb 01:15 + 2 orbits, bad data
17-feb-09 02:45, bad data
18-feb-09 02:15, bad data
Glitches
An unusual period of rapid background variability at high energies happened 8-Feb - see here. I can't see any sign of this in the monitor plots and am perplexed.
The fast soft events (3-6 and 6-12 keV) that looked like flares, weren't. They're no doubt due to arcing in one detector. See here for an example.
