Home Latest News Another small sunspot - 30-Jul-2009

Podcast

Right-click, Copy Link - use for Juice, etc.
Podcast Feed

Subscribe

Space WX

Another small sunspot - 30-Jul-2009 Print E-mail
Written by Administrator   
Thursday, 30 July 2009 23:33
The official keepers of sunspot counts, the SIDC in Belgium, reported today that a small sunspot (that they report as Catania #16) appeared late 30-July-2009:

Quote:
:Issued: 2009 Jul 30 1309 UTC
:Product: documentation at
http://www.sidc.be/products/meu
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC #
# (RWC Belgium) #
#--------------------------------------------------------------------#
SIDC URSIGRAM 90730
SIDC SOLAR BULLETIN 30 Jul 2009, 1302UT
SIDC FORECAST (valid from 1230UT, 30 Jul 2009 until 01 Aug 2009)
SOLAR FLARES : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 30 Jul 2009 10CM FLUX: 069 / AP: 006
PREDICTIONS FOR 31 Jul 2009 10CM FLUX: 069 / AP: 006
PREDICTIONS FOR 01 Aug 2009 10CM FLUX: 069 / AP: 003
COMMENT: The Earth passed the co-rotating interaction region of the
high latitude coronal hole. We expect only minor disturbances: K-index
of 2, maximum 3. A small sunspot popped up in the western part of the
solar disk. No flaring activity is produced. The all-quiet-alert is
still valid.
Remember Catania #15? NOAA never assigned their number to that one. This is another sunspot of very small nature; it might develop into a larger region, or it may not. If not, NOAA may not assign a number to this one, either.

However, as I made the point last time: we're seeing 'something' more than a purely BLANK solar disc - more often than not, now. The activity level is, while still very low, never-the-less, increasing. If this trend continues, the latter part of 2009 may see a bit of an upward rise in overall solar activity, and hopefully, an uprise in ionization of the ionosphere. That means we may see an improvement in HF communications on higher shortwave frequencies over the conditions of these last few years.

By the way, if you look at the current solar disc - you'll see the remains of that big sunspot group 1024, in the southeastern area of the solar disc. It still has a bit of magnetic activity, but has spread into a rather large area.

See you on the bands!
Comments
Add New Search RSS
Write comment
Name:
Email:
 
Title:
 
:angry::0:confused::cheer:B):evil::silly::dry::lol::kiss::D:pinch:
:(:shock::X:side::):P:unsure::woohoo::huh::whistle:;):s
:!::?::idea::arrow:
 
Please input the anti-spam code that you can read in the image.

!joomlacomment 4.0 Copyright (C) 2009 Compojoom.com . All rights reserved."

 

Support HFRadio



Please help keep HFRadio.org and the Podcast service online for everyone. Donate, today...



Don't forget - your donation keeps this service running! Thank you!

Play the Podcast Now!

ACE-HF Propagation Modeling



ACE-HF PRO is the premier propagation modeling software.

For both Amateur Radio and Shortwave Listening, and even for certain military radio applications, this new version helps you plan, analyze, and engineer your antenna system and your radio operations.

ACE-HF Animated Propagation Modeling

Click: Info on ACE-HF PRO

Contact Us!



Please Write Us!

Tell us what you think of the podcast. Send us your reports on propagation at your station. How are conditions? Anything unusual? Do you have topics you'd like to hear more about, on the podcast?

Click: Write Comments, Questions, Reports, now.

Twitter Space WX


Get Space Weather Reports

Follow @hfradiospacewx on Twitter. Every 30 minutes, HFRadio.org tweets the latest space weather indices and propagation conditions.

Current Images

Click on image to view larger versions
SOHO Extreme ultraviolet Imaging Telescope (EIT) full-field Fe IX, X 171 Å image from NASA Goddard Space Flight Center
SOHO Extreme ultraviolet Imaging Telescope (EIT) full-field Fe XV 284 Å images from NASA Goddard Space Flight Center
SOHO Extreme ultraviolet Imaging Telescope (EIT) full-field He II 304 Å images from NASA Goddard Space Flight Center
C2 LASCO Image
C3 LASCO Image
SOHO Michelson Doppler Imager (MDI) 6767 Å continuum images from Stanford University

Full Space Weather Information:
NW7US Space WX Center