Issued: 2017 09 05 1213 UTC
#------------------------------------------------#
#             PROPAGATION WARNING                #
#              C.C.R.M.  Ophain                  #
#      50° 39' 30\" N    -     004° 21' 00\" E	 #
#                                                #
#     POSSIBLE HARMFUL  INTERFERENCE DUE TO      #
#                 SPECIAL EVENT                  #
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CCRM Propagation Bulletin #556
OBSERVATION PERIOD : 2017 09 05 1213 UTC
INTERFERENCE RISK : MAJOR to SEVERE

Good afternoon

Problem concerning the Sporadic E-Skip Propagation survey

	Since 2017/08/31 at 00:21 UTC until today 10:40 UTC, one of the frequency under survey for 
	« sporadic E-Skip » propagation detection was blocked by an unknown transmission.
	The trouble as been fixed by the B.I.P.T. 

Solar coronal mass ejection (CME)

	From the Royal Observatory of Belgium :

:Issued: 2017 Sep 05 0842 UTC
:Product: documentation at http://www.sidc.be/products/presto
#--------------------------------------------------------------------#
# FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium)         #
#--------------------------------------------------------------------#
Analysis of the coronagraph data of yesterdays CME indicate that the projected speed of the first ejection measures between 500 and 1000 km/s. However, the projected speed of the second faster ejection is close to 1500km/s.
Based on the drag based model, arrival of the associated CME shock front can be expected around UT noon September 6, when Solar wind speed is likely to reach values of over 800km/s.
Associated geomagnetic storms are expected and could potentially reach major to severe levels.
#--------------------------------------------------------------------#
# Solar Influences Data analysis Center - RWC Belgium                #
# Royal Observatory of Belgium                                       #
# Fax : 32 (0) 2 373 0 224                                           #
# Tel.: 32 (0) 2 373 0 491                                           #
#                                                                    #


Regards



		


REMARKS : 

Operator : Serge MAROTTE

SEE OUR PROGPAGATION GRAPHS : http://www.ccrmradio.be/propaplot.html
AND PROPAGATION MAP : http://www.ccrmradio.be/propamap.html
Contact us for specific information.

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