Dear Friends, NASA's spaceweather.com has issued a new aurora alert: Aurora Watch: An interplanetary shock wave passed by NASA's ACE spacecraft at 0400 UT on April 24. The solar wind velocity jumped from 420 to 520 km/s and the interplanetary magnetic field turned southward. These conditions are likely to create geomagnetic disturbances on Earth and displays of aurora borealis at middle latitudes. This shock front is neither as large nor as abrupt as the one that caused the intense geomagnetic storm on April 6, 2000. Nevertheless, sky watchers are advised to be on the lookout for Northern Lights near local midnight. Let's hope for clear skies. Thanks, Charlie. -*-*-*-*-*-*-*-*-*-*-*-*-*- Charlie Eltham 9 Princes Road Tivoli Cheltenham England GL50 2TX 51.892N 2.080W ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Mon Apr 24 2000 - 04:00:18 PDT