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Aurora in Slovenia October 21/22, 2001
On October 19, 2001 a sunspot group designated NOAA 9661 unleashed a pair of X1.6 flares associated with CMEs. On October 21, 2001 the geomagnetic activity reached the G3 storm levels. Aurora was visible from the Central Europe, including Slovenia. The geomagnetic storm levels persisted for 39 hours with the Kp index reaching 7 (and planetary A index at 75). Below you can find the observation reports from Slovenia.
Location: Skalsko jezero (N46.37,E15.11)
UTC Time and Date: 21.10.2001 - 20:45 (30 minutes)
Observer: Jure Atanackov
Limiting magnitude: +6.7
Light pollution: low
Cloudiness: 0%
Limiting magnitude at the location of aurora: ca +4
Auroral activity: moderate
Elevation of activity: 35-40 degrees
Types of activity:
(diffuse glow) (rays) (colour variations)
Comments: Aurora was first sighted through the
bathroom window as a bright red glow up to 40 degrees
in elevation (approx. to Beta UMi). Aurora later
observed from Skale Lake. Aurora spanning 130 degrees
of the horizon from WNW to ENE and 35-40 degrees in
elevation. The activity declined until 21:00 UT, then
distinct rays up to 30 degrees in elevation formed
in the north. At 21:15 UT the activity was back to
faint red glow covering about 15 degrees elevation
over NE and N horizon. Aurora was detected until
22:15 UT as a faint red glow up to 5 degrees over
northern horizon. It got cloudy afterwards.
Location: Slovenska Bistrica (N46.39, E15.57)
UTC Time and Date: 21.10.2001 - 20:30 (20 minutes)
Observer: Breda Kac
Limiting magnitude: -
Light pollution: moderate
Cloudiness: 20%
Limiting magnitude at the location of aurora: -
Auroral activity: high
Elevation of activity: 45 degrees
Types of activity:
(diffuse glow)
Comments: Red aurora visible from azimuth 280 (WNW)
to 040 (NE) up to 45 degrees in elevation.
Location: Starse (N46.48,E15.77)
UTC Time and Date: 21.10.2001 - 20:30 (-)
Observer: Benjamin Lukan
Limiting magnitude: -
Light pollution: -
Cloudiness: -
Limiting magnitude at the location of aurora: -
Auroral activity: high
Elevation of activity: 50 degrees
Types of activity:
(diffuse glow) (rays) (curtains)
Comments: Intese red courtain about 20 degrees in
azimuth over the northern horizon and about 30 degrees
in elevation.
Location: Planica (N46.45,E15.60)
UTC Time and Date: 21.10.2001 - 20:30 (60 minutes)
Observer: Natasa Petelin
Limiting magnitude: +5.5
Light pollution: moderate
Cloudiness: 10%
Limiting magnitude at the location of aurora: 2-3
Auroral activity: high
Elevation of activity: 30 degrees
Types of activity:
(diffuse glow) (rays)
Comments: At 20:30 UT a single ray spotted in the
north then three rays reaching up to 30 degrees in
elevation. At 21:00 UT the rays disappeared with only
diffuse glow still being visible.
The text on this page is © 2001 by MBK Team.
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