BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:The extent of the chorus observed at Marion Island
DTSTART;VALUE=DATE-TIME:20110714T150000Z
DTEND;VALUE=DATE-TIME:20110714T170000Z
DTSTAMP;VALUE=DATE-TIME:20260711T211746Z
UID:indico-contribution-4942@events.saip.org.za
DESCRIPTION:Speakers: Andrew Collier (Hermanus Magnetic Observatory)\nOn t
 he 4 August 2010\, chorus was observed at Marion Island from 03:00 - 07:00
  UT (06:00 - 10:00 LT). Marion Island (46.9°S/37.1°E\, L = 2.62) is with
 in the plasmasphere during periods of low geomagnetic disturbance\, making
  the observation of chorus there a rare occurrence. On the 4 August\, a mo
 derate geomagnetic storm occurred\, with a maximum Kp of 6+\, and a minumu
 m DST of -70nT. These conditions compressed the plasmasphere to such an ex
 tent that Marion Island was near to\, or outside\, the plasmaspause at the
  time of the emission\, making the observation of chorus possible. On the 
 same day\, there chorus was also observed at SANAE IV (L = 4.32). The spec
 tral properties of these chorus are different\, meaning that the chorus ob
 served at SANAE IV was generated in a different region to that observed at
  Marion Island. We present broadband data from both Marion Island and SANA
 E IV\, and  extent of the chorus generating region is inferred from DEMETE
 R data.\n\nhttps://events.saip.org.za/event/7/contributions/4942/
LOCATION: Asteria
URL:https://events.saip.org.za/event/7/contributions/4942/
END:VEVENT
END:VCALENDAR