If there wasn't already enough excitement.......

Flares and CMEs

A total of 6 C flares and 1 X flare were recorded on October 14. Region 8731 produced 4 of the C flares and an X1.8/1N major flare at 09:00 UTC. A moderately strong type II sweep and a strong type IV sweep accompanied the flare. A coronal mass ejection was observed at 09:26 by LASCO C2 off the east limb, later on an almost full halo CME was evident in LASCO C3 with material observed from the north pole, all around the east limb and off a large part of the southwest limb. Earth could receive a non-direct impact from this CME on October 16 or 17 causing the geomagnetic field activity level to reach active to major storm.

October 13: The most interesting event of the day was a large filament eruption in the northern hemisphere. The event started at 07:13 in the northeast quadrant. Development was slow at first and spread towards the southwest crossing the central meridian with the most intense activity between 09 and 11h UTC. LASCO C2 observed a coronal mass ejection starting at 10:06 UTC over the north pole. Material was later evident in all directions, and there is a fairly high chance that the earth will receive a weak impact from this CME on October 16.

The background x-ray flux is at the class C1-C2 level.

May you live in interesting times......indeed!

-- Bill (bill@tinfoil.com), October 15, 1999

Answers

Translation, please.

Jeannie

-- jhollander (hollander@ij.net), October 15, 1999.