http://www.rhci-online.net/radiogram/radiogram.htm

https://github.com/GyanD/codexffmpeg/releases/tag/2023-03-05-git-912ac82a3c

set MyFiles=*.flac *.fla *.wav *.aif *.mp4 *.mp3 *.mp2 *.aac *.ogg*.m4a
for %%a in (%MyFiles%) do ffmpeg -i "%%a" -y-lavfi showspectrumpic=s=1920x1080:color=fiery:gain=.7:fscale=lin:orientation=0:saturation=1:mode=combined:legend=enabled:start=0:stop=8000 "%%~na.jpg"

RSID: <<2025-06-05T23:31Z MFSK-32 @ 9265000+1500>>

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Welcome to program 404 of Shortwave Radiogram.

I'm Kim Andrew Elliott in Arlington, Virginia USA.

Here is the lineup for today's program, in MFSK modes as noted:

  1:43 MFSK32: Program preview (now)
  2:55 MFSK32: Press freedom group decries USAGM firings
  6:59 MFSK64: Orbital constellations for solar storm defense
10:20 MFSK64: This week's images
28:07 MFSK32: Closing announcements


Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

We're on Bluesky now: SWRadiogram.bsky.social

And X/Twitter: @SWRadiogram.

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Full text:
https://rsf.org/en/usa-rsf-decries-trump-administration-s-illegal-usagm-firings
 

Shortwave Radiogram now changes to MFSK64 ...


RSID: <<2025-06-05T23:37Z MFSK-32 @ 9265000+1500>>
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This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

From Universe Today:

Advanced orbital constellations for solar storm defense

by Andy Tomaswick
June 2, 2025

Solar storms have the potential to cause catastrophic damage. One
that occurred around the end of October 2003 (now called the 2003
Halloween Storm) caused an estimated $27B in damages. That number
will only increase as humanity has become more reliant on
space-based and electrical infrastructure. However, if we could
predict when storms would hit with some accuracy and adjust our
use of the technologies that could be affected, we could avoid
the worst damage.

But, as of now, we don't have such a system that could help
predict the types of events that could cause that damage
accurately enough. That is where a new sun activity monitoring
system, described in a recent paper by Leonidas Askianakis of the
Technical University of Munich, would help.

In the paper published in the Journal of Space Safety
Engineering, Dr. Askianakis describes 13 different mission
objectives that focus on detecting and tracking coronal mass
ejections (CMEs) and sunspots, especially in the so-called
"sun-Earth Line," which moves as Earth travels around the sun
throughout a year.

The system would be able to reconstruct 3D models of CMEs and
keep track of the whole sun, including the poles, allowing a more
holistic understanding of the solar dynamics that cause storms in
the first place.

Existing systems, such as the Parker Solar Probe and SOHO, though
powerful, aren't capable of monitoring from more than one
perspective, and aren't always able to capture the SEL in a way
that would be useful to predict the destruction caused by solar
storms. Even with all the data that those missions and others
have collected, we still have significant gaps in our
understanding of solar physics that Dr. Askianakis's mission
would help to close.

The underlying mission design would use a technique called an
elliptical walker constellation of six satellites. While that
sounds like it could be named after someone, the technique uses
orbital mechanics to spread the satellites out across the area
around the sun and allow them to "walk" to provide different
perspectives and coverage that wouldn't be possible with a
stationary orbit.

Dr. Askianakis uses a separation technique for each satellite
called a right ascension of the ascending node (RAAN) technique,
ensuring that the SEL coverage is as complete and consistent as
possible. Each satellite would be fitted with an electrical
propulsion system and utilize gravity assists from Venus to
maintain its orbital path. According to the paper, this system
could maintain communications between each of the satellites 94%
of the time, allowing almost constant monitoring of the SEL for
any potentially dangerous storms.

Each satellite would carry a suite of sensors, including
magnetometers, X-ray detectors, gamma-ray detectors, and
energetic particle detectors. These instruments would track all
the different phenomena that could be potentially interesting (or
dangerous) coming from the sun, allowing scientists to tell
engineers when to turn off devices to save them from potentially
crippling damage.

The mission itself could cost upwards of $3.8B for its total
lifecycle, but stopping the damage from even one storm like the
2003 Halloween Storm could make up a significant chunk of that.
Over the seven years of the mission, Dr. Askianakis calculates
that such a system could save between $2B and $10B in damage,
essentially offsetting the entire mission cost.

The original plan would see the project spend the next six years
in development, with a launch of the six satellites on a single
Starship in 2031. Getting into position in the complicated
orbital structure would take around four years. Then the
constellation would be ready for operations, lasting around seven
years.

If it is supported and works as expected, at least during that
seven-year window, Earth would be better protected from solar
storms than at any point in its several billion-year history.

https://phys.org/news/2025-06-advanced-orbital-constellations-solar-storm.html
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This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net

 

This week's images ....
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A dog jumps into a pool at the "Dogs and Fun" fair in Dortmund,
Germany, May 23. tinyurl.com/24p4jclq ...

Sending Pic:196x140C;
 

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A participant in a bin of green plastic balls at the 2025
Re:publica digital-society festival, Berlin, May 26.
tinyurl.com/24p4jclq ...

Sending Pic:151x202C;
 

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The Morris Performing Arts Center in South Bend, Indiana, lit up
in blue for the Marian High School graduation.
tinyurl.com/2afqkxy7 ...

Sending Pic:147x197C;


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The sun setting behing Lac La Belle in Oconomowoc, Wisconsin,
with haze from Canadian wildfires. tinyurl.com/2byydxba ...

Sending Pic:147x196C;
 

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Flowers at the Boyce Thompson Arboretum in Superior, Arizona.
tinyurl.com/29vt65al ...

Sending Pic:197x146C;


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A footbridge at the China Trail Garden at Acton Arboretum in
Massachusetts, during May. tinyurl.com/29ajzadw ...

Sending Pic:153x204C;

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From the Tidal Basin, sunrise behind the tower at the US Forest
Service headquarters in Southwest Washington DC, June 4.
tinyurl.com/2cxkq3vj ...

Sending Pic:133x200C;
 

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A Yellow Warbler at Hammonasset Beach State Park, Madison,
Connecticut, May 29. tinyurl.com/26qq3o4m ...

Sending Pic:152x193C;




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Looking a bit like a Muppet, this pitcher plant at the Fort Worth
Botanic Garden in Texas. tinyurl.com/2ygnwzlx ...

Sending Pic:131x211C;
 

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Our painting of the week is "The First Skunk Cabbage" (2025) by
Jeremy Miranda (USA). tinyurl.com/29wwlwkt ...

Sending Pic:161x200C;
 

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Shortwave Radiogram returns to MFSK32 ...

 

RSID: <<2025-06-05T23:58Z MFSK-32 @ 9265000+1500>>


This is Shortwave Radiogram in MFSK32 ...


Transmission of Shortwave Radiogram is provided by:

WRMI, Radio Miami International, http://wrmi.net

and

WINB Shortwave, http://winb.com


Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

http://swradiogram.bsky.social

X/Twitter (for now): @SWRadiogram

I'm Kim Elliott. Please join us for the next Shortwave
Radiogram.
 

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