Ulysses HISCALE Pages
Authors: G. M. Simnett and S. J. Tappin, University of Birmingham, U.K.; L. J. Lanzerotti, AT&T Bell Laboratories, Murray Hill, NJ; R. E. Gold and E. C. Roelof, Johns Hopkins University Applied Physics Laboratory, Laurel, MD; K. A. Anderson, Space Sciences Laboratory, University of California-Berkeley; T. P. Armstrong, University of Kansas, Lawrence, KS; R. P. Lin, Space Sciences Laboratory, University of California-Berkeley; S. M. Krimigis, Johns Hopkins University Applied Physics Laboratory, Laurel, MD; M. Pick, Observatoire de Paris, Meudon, France; E. T. Sarris, University of Thrace, Xanthi, Greece.
Presented at: European Geophysical Society Meeting, Edinburgh, Scotland, April 1992.
Solar Activity around December 1, 1990
Main active regions around E50 solar longitude.
Region 6387 (S25) and Region 6390 (N33).
No identified optical flare with GOES x-ray flux above C5 since 10:00 UT, November 20.
There was an unidentified M1.2 x-ray flare around 01.05 UT on December 1.
The December 1 particle event at Ulysses was the largest event seen in 1990.
(Some of the figures were originally in color; these black and white copies are somewhat degraded in quality.)
|Figure 1.||Figure 2.|
|Figure 3.||Figure 4.|
|Figure 5.||Figure 6.|
||Figure 7. Anisotropy of P7 - 1060-5000 keV ions||Figure 8.|
|Figure 9.||Figure 10.|
|Figure 11.||Figure 12.|
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Last modified March 6, 2006