RSID: <<2022-02-04T00:31Z MFSK-32 @ 9265000+1500>>

Welcome to program 241 [242!] of Shortwave Radiogram.

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

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

  1:40 MFSK32: Program preview (now)
  3:02 MFSK32: VOA Ukrainian story on Intel US factory (excerpt)
  9:06 MFSK64: Newly discovered asteroid shares Earth's orbit
12:38 MFSK64: This week's images
27:44 MFSK32: Closing announcements

 

Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

We're on Twitter now: @SWRadiogram

With Ukraine in the news, the following news story is in
Ukrainian. The Cyrillic text requires the UTF-8 character set,
which is default in Fldigi and TIVAR ...


From VOA Ukrainian:
 

США відчувають нестачу мікрочіпів. Цей 20-мільярдний завод Intel
може її вирішити

Марія Прус
26 січень, 2022

Повний текст / Complete text ...

https://ukrainian.voanews.com/a/6413227.html

Shortwave Radiogram now changes to MFSK64 ...


 

RSID: <<2022-02-04T00:38Z MFSK-64 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

From Phys.org:

Team confirms existence of new Earth Trojan asteroid

by University of Barcelona
February 1, 2022

An International team of astronomers led by researcher Toni
Santana-Ros from the University of Alicante and the Institute of
Cosmos Sciences of the University of Barcelona (ICCUB) has
confirmed the existence of the second Earth Trojan asteroid known
to date, the 2020 XL5, after a decade of search. The results of
the study have been published in the journal Nature
Communications.

All celestial objects that roam around our solar system feel the
gravitational influence of all the other massive bodies that
build it, including the sun and the planets. If we consider only
the Earth-sun system, Newton's laws of gravity state that there
are five points where all the forces that act upon an object
located at that point cancel each other out. These regions are
called Lagrangian points, and they are areas of great stability.
Earth Trojan asteroids are small bodies that orbit around the L4
or L5 Lagrangian points of the sun-Earth system.

These results confirm that 2020 XL5 is the second transient Earth
Trojan asteroid known to date, and everything indicates it will
remain Trojan—that is, it will be located at the Lagrangian
point—for four thousand years; thus it is qualified as transient.
The researchers have provided an estimation of the object bulk
size (around one kilometer in diameter, larger than the Earth
Trojan asteroid known to date, the 2010 TK7, which was 0.3
kilometers in diameter), and have made a study of the impulse a
rocket needs to reach the asteroid from Earth.

Although Trojan asteroids had been known to exist for decades in
other planets such as Venus, Mars, Jupiter, Uranus and Neptune,
it was not until 2011 that the first Earth Trojan asteroid was
found. The astronomers have described many observational
strategies for the detection of new Earth Trojans. "There have
been many previous attempts to find Earth Trojans, including in
situ surveys such as the search within the L4 region, carried out
by the NASA OSIRIS-Rex spacecraft, or the search within the L5
region, conducted by the JAXA Hayabusa-2 mission," notes Toni
Santana-Ros, author of the publication. He adds that "all the
dedicated efforts had so far failed to discover any new member of
this population."

The low success in these searches can be explained by the
geometry of an object orbiting the Earth-sun L4 or L5 as seen
from our planet. These objects are usually observable close to
the sun. The observation time window between the asteroid rising
above the horizon and sunrise is, therefore, very small. Thus,
astronomers point their telescopes very low on the sky where the
visibility conditions are at their worst and with the handicap of
the imminent sunlight saturating the background light of the
images for just a few minutes in the observation.

To solve this problem, the team carried out a search of 4-meter
telescopes that would be able to observe under such conditions,
and they finally obtained the data from the 4.3m Lowell Discovery
Telescope (Arizona, United States), and the 4.1m SOAR telescope,
operated by the National Science Foundation NOIRLab (Cerro
Pachón, Chile).

The discovery of the Earth Trojan asteroids is very significant
because these can hold a pristine record on the early conditions
in the formation of the solar system, since the primitive Trojans
might have been co-orbiting the planets during their formation,
and they add restrictions to the dynamic evolution of the solar
system. In addition, Earth Trojans are the ideal candidates for
potential space missions in the future.

Since the L4 Lagrangian point shares the same orbit as the Earth,
it takes a low change in velocity to be reached. This implies
that a spacecraft would need a low energy budget to remain in its
shared orbit with the Earth, keeping a fixed distance to it.
"Earth Trojans could become ideal bases for an advanced
exploration of the solar system; they could even become a source
of resources," concludes Santana-Ros.

The discovery of more Trojans will enhance our knowledge of the
dynamics of these unknown objects and will provide a better
understanding of the mechanics that allow them to be transient.

https://phys.org/news/2022-02-team-earth-trojan-asteroid.html

See also:
https://www.sciencenews.org/article/earth-second-trojan-asteroid-orbit

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net

This week's images ...




Orange stripes -- to see what shortwave propagation does to them.
https://bit.ly/3rl26OM ...

Sending Pic:204x135C;



 

Pedestrians and traffic make their way through heavy snow in
Times Square, New York, January 29. https://bit.ly/3J2qbjF ...

Sending Pic:205x153C;

A scuba diver takes part in an ice-diving class in Vladivostok.
https://bit.ly/3scdR9B ...

Sending Pic:193x186C;

The Beijing Olympic Tower is illuminated at night on January 24.
https://bit.ly/3IVpM2g ...

Sending Pic:164x203C;
 

A light installation during the Festival of Lights, celebrating
the 699th anniversary of Vilnius city at the Palace of the Grand
Dukes of Lithuania, on January 25. https://bit.ly/3IVpM2g ...

Sending Pic:207x138C;

A lantern show ahead of the Lunar New Year in Xi'an, China,
January 29. https://bit.ly/34wqjsr ...

Sending Pic:203x147C;
 

A starling seeking food scraps at a cafe in Portobello, Scotland.
https://bbc.in/3HocxHb ...

Sending Pic:204x161C;

Our painting of the week is "Lemons in the Window" by Woldemar
Neufeld. https://bit.ly/3GjGyX7 ...

Sending Pic:163x203C;





Shortwave Radiogram returns to MFSK32 ...


 

RSID: <<2022-02-04T00:58Z MFSK-32 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK32 ...

 

Shortwave Radiogram is transmitted by:

WRMI, Radio Miami International, wrmi.net

and

WINB Shortwave, winb.com


Please send reception reports to radiogram@verizon.net

And visit http://swradiogram.net

Twitter: @SWRadiogram or twitter.com/swradiogram

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