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| Evolution of sunspot group NOAA 8771 and positions of flares in it animated by using the data of SOHO/MDI Debrecen Data (SDD) sunspot catalogue (lower panel, middle, ellipses with positions and areas corresponding to the relevant data of spots in SDD and with grey-scale colour coding of the magnetic polarities corresponding to that of the magnetograms), SOHO/MDI continuum images (lower panel, left) and magnetograms (lower panel, right), SOHO/EIT images (upper panel, middle), GOES and RHESSI flare data (red and blue symbols) observed within the interval around the time of SDD data. |
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SOHO/MDI Debrecen Data
(More details of 8771 group)
| Year | Month | Day | Hour | Min | Sec | NOAA | Proj.U | Proj.WS | Corr.U | Corr.WS | B | L | LCM | Pos.angle | r | MU | MP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 11 | 26 | 11 | 11 | 33 | 8771 | 201 | 1357 | 192 | 1324 | -15.74 | 173.80 | 57.50 | 250.59 | 0.8587 | 175.0 | -56.3 |
Reuven Ramaty High Energy Solar Spectroscopic Imager
| Flare | Date | Start | Peak | End | Dur [s] | Peak [c/s] | Total Counts | Energy [keV] | X pos [asec] | Y pos [asec] | Radial [asec] | B [deg] | L [deg] | Flags |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No data | ||||||||||||||
Geostationary Operational Environmental Satellite
| Date | Start | Peak | End | Classification | B [deg] | LCM [deg] |
|---|---|---|---|---|---|---|
| 26-Nov-1999 | 10:57 | 11:03 | 11:13 | C2.6 | -19 | 61 |