Weekly Propagation Forecast Bulletins

Solar Terrestrial Activity Report
data updated daily at: http://www.solen.info/solar/

Archive Solar and geomagnetic data
http://www.solen.info/solar/indices.html

Product: Weekly HighlightForecasts
s and :Issued: 2009 Oct 06 1921 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
28 September - 04 October 2009

Solar activity was very low. Region 1027 (N24, L=240, class/area Dao/110 on 24 September) produced a B7 flare on 01 October as it was nearing the west limb. No flare activity occurred during the remainder of the period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels during the period.

Geomagnetic field activity was at quiet to active levels on 28 September with brief minor storm conditions at high latitudes. Activity decreased to quiet levels during the remainder of the
period. A geomagnetic sudden impulse (18 nT, as measured by the Boulder USGS magnetometer) was detected at 04/0422 UTC. ACE solar wind measurements indicated the 28 September activity was associated with a period of southward IMF Bz (minimum -6 nT at 28/0530 UTC) and enhanced IMF Bt (peak 8 nT at 28/0534 UTC). ACE data indicated the
sudden impulse was associated with a weak interplanetary shock. A velocity increase (approximately 297 to 362 km/sec) and increased IMF Bt were associated with the sudden impulse. There was no obvious source for the sudden impulse.

Forecast of Solar and Geomagnetic Activity
07 October - 02 November 2009

Solar activity is expected to be very low.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal levels through the period.

Geomagnetic field activity is expected to be at quiet levels during most of the period. However, unsettled conditions are expected during 24 - 25 October due to recurrence.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2009 Oct 06 1921 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact
# www.swpc.noaa.gov/wwire.html
#


# 27-day Space Weather Outlook Table
# Issued 2009 Oct 06
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2009 Oct 07 69 5 2
2009 Oct 08 69 5 2
2009 Oct 09 69 5 2
2009 Oct 10 69 5 2
2009 Oct 11 69 5 2
2009 Oct 12 69 5 2
2009 Oct 13 69 5 2
2009 Oct 14 69 5 2
2009 Oct 15 69 5 2
2009 Oct 16 70 5 2
2009 Oct 17 70 5 2
2009 Oct 18 72 5 2
2009 Oct 19 72 5 2
2009 Oct 20 72 5 2
2009 Oct 21 72 5 2
2009 Oct 22 72 5 2
2009 Oct 23 72 5 2
2009 Oct 24 72 8 3
2009 Oct 25 72 8 3
2009 Oct 26 72 5 2
2009 Oct 27 72 5 2
2009 Oct 28 72 5 2
2009 Oct 29 72 5 2
2009 Oct 30 72 5 2
2009 Oct 31 70 5 2
2009 Nov 01 70 5 2
2009 Nov 02 69 5 2
(NOAA)