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

RSID: <<2024-11-08T00:31Z MFSK-32 @ 9265000+1500>>
 

Welcome to program 377 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)
  2:52 MFSK32: Slim Dubai skyscraper just one apartment wide*
  7:55 MFSK64: Laser communications for historic moon flyby
13:10 MFSK64: This week's images*
28:39 MFSK32: Closing announcements

* with image(s)


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From New Atlas:


Incredibly slim Dubai skyscraper will be just one apartment wide

By Adam Williams
November 01, 2024

Work is currently underway on an extremely slim new skyscraper in
Dubai. Despite its supertall height of 380 m (1,246 ft), the
tower will be just one apartment wide – or 22.5 m (73 ft).

Not to be confused with the New Muraaba, the Muraba Veil is
designed by Pritzker Prize-winning RCR Arquitectes. It also
involves engineering firms WSP and Arup, with Muraba developing.

Inspired by traditional Arabian housing, it will be located on a
prime spot in Dubai and wrapped in a porous stainless steel
Mashrabiya-style mesh, or "veil," intended to take the sting out
of the harsh Dubai sun. Its interior will consist of 73 floors
and from the renders we can see it will be a lot longer than
wide, allowing it to fit 131 luxury residences.

The apartments themselves will range from two to five bedrooms,
with prices starting from AED18,000,000 (US$4.9 million). Each
spans the full width of the tower, providing unobstructed views
of the Dubai skyline and indoor-outdoor living. As you'd expect,
for that sort of money there will be lots of amenities, including
a restaurant, art gallery, cinema, an amphitheater, and even a
subterranean spa.

"Muraba Veil is our response to the unique landscape and culture
of Dubai," says Rafael Aranda, Founder at RCR Arquitectes. "Our
goal was to design a building that feels connected to its
surroundings while pushing the boundaries of what a skyscraper
can be. The Veil stands as an emblem of a new architectural
approach – one that reflects both heritage and modernity."

The Muraba Veil is the latest of several ultra-slender
skyscrapers that are either already completed or at the planning
stage, including 11 West 57th Street, and the Pencil Tower Hotel.
We've no word on the expected date of completion for the Veil at
this time.

https://newatlas.com/architecture/muraba-veil-dubai/

 

Image: The Muraba Veil is an incredibly thin supertall skyscraper
in Dubai that will have a width of just 22.5 m (73 ft) ...

Sending Pic:134x205C;

Shortwave Radiogram now changes to MFSK64 ...




RSID: <<2024-11-08T00:37Z MFSK-32 @ 9265000+1500>>

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net
 

From Phys.org:

Communications user terminal prepares for historic moon flyby

By Ariana Tantillo
Massachusetts Institute of Technology
November 4, 2024

In 1969, Apollo 11 astronaut Neil Armstrong stepped onto the
moon's surface—a momentous engineering and science feat marked by
his iconic words, "That's one small step for a man, one giant
leap for mankind." Three years later, Apollo 17 became NASA's
final Apollo mission to land humans on the brightest and largest
object in our night sky. Since then, no humans have visited the
moon or traveled past low Earth orbit (LEO), largely because of
shifting politics, funding, and priorities.

But that is about to change. Through NASA's Artemis II mission,
scheduled to launch no earlier than September 2025, four
astronauts will be the first humans to travel to the moon in more
than 50 years. In 2022, the uncrewed Artemis I mission proved the
ability of NASA's new spacecraft Orion—launched on the new
heavy-lift rocket, the Space Launch System—to travel farther into
space than ever before and return safely to Earth.

Building on that success, the 10-day Artemis II mission will pave
the way for Artemis III, which aims to land astronauts on the
lunar surface, with the goal of establishing a future lasting
human presence on the moon and preparing for human missions to
Mars.

One big step for lasercom

Artemis II will be historic not only for renewing human
exploration beyond Earth, but also for being the first crewed
lunar flight to demonstrate laser communication (lasercom)
technologies, which are poised to revolutionize how spacecraft
communicate. Researchers at MIT Lincoln Laboratory have been
developing such technologies for more than two decades, and NASA
has been infusing them into its missions to meet the growing
demands of long-distance and data-intensive space exploration.

As spacecraft push farther into deep space and advanced science
instruments collect ultrahigh-definition (HD) data like 4K video
and images, missions need better ways to transmit data back to
Earth. Communication systems that encode data onto infrared laser
light instead of radio waves can send more information at once
and be packaged more compactly while operating with less power.

Greater volumes of data fuel additional discoveries, and size and
power efficiency translate to increased space for science
instruments or crew, less expensive launches, and longer-lasting
spacecraft batteries.

For Artemis II, the Orion Artemis II Optical Communications
System (O2O) will send high-resolution video and images of the
lunar surface down to Earth—a stark contrast to the blurry,
grainy footage from the Apollo program. In addition, O2O will
send and receive procedures, data files, flight plans, voice
calls, and other communications, serving as a high-speed data
pipeline between the astronauts on Orion and mission control on
Earth.

O2O will beam information via lasers at up to 260 megabits per
second (Mbps) to ground optical stations in one of two NASA
locations: the White Sands Test Facility in Las Cruces, New
Mexico, or the Jet Propulsion Laboratory's Table Mountain
Facility in Wrightwood, California. Both locations are ideal for
their minimal cloud coverage, which can obstruct laser signals as
they enter Earth's atmosphere.

At the heart of O2O is the Lincoln Laboratory–developed Modular,
Agile, Scalable Optical Terminal (MAScOT). About the size of a
house cat, MAScOT features a 4-inch telescope mounted on a
two-axis pivoted support (gimbal), and fixed back-end optics.

The gimbal precisely points the telescope and tracks the laser
beam through which communications signals are emitted and
received, in the direction of the desired data recipient or
sender. Underneath the gimbal, in a separate assembly, are the
back-end optics, which contain light-focusing lenses, tracking
sensors, fast-steering mirrors, and other components to finely
point the laser beam.

A series of firsts

MAScOT made its debut in space as part of the laboratory's
Integrated Laser Communications Relay Demonstration (LCRD) LEO
User Modem and Amplifier Terminal (ILLUMA-T), which launched to
the International Space Station (ISS) in November 2023.

After a few weeks of preliminary testing, ILLUMA-T transmitted
its first beam of laser light to NASA's LCRD satellite in
geosynchronous (GEO) orbit 22,000 miles above Earth's surface.
Achieving this critical step, known as "first light," required
precise pointing, acquisition, and tracking of laser beams
between moving spacecraft.

Over the following six months, the laboratory team performed
experiments to test and characterize the system's basic
functionality, performance, and utility for human crews and user
applications. Initially, the team checked whether the
ILLUMA-T-to-LCRD optical link was operating at the intended data
rates in both directions: 622 Mbps down and 51 Mbps up. In fact,
even higher data rates were achieved: 1.2 gigabits per second
down and 155 Mbps up.

"This first demonstration of a two-way, end-to-end laser
communications relay system, in which ILLUMA-T was the first LEO
user of LCRD, is a major milestone for NASA and other space
organizations," says Bryan Robinson, leader of the laboratory's
Optical and Quantum Communications Group. "It serves as a
precursor to optical relays at the moon and Mars."

After the relay was up and running, the team assessed how
parameters such as laser transmit power, optical wavelength, and
relative sun angles impact terminal performance. Lastly, they
contributed to several networking experiments over multiple nodes
to and from the ISS, using NASA's delay/disruption tolerant
networking protocols.

One landmark experiment streamed 4K video on a round-trip journey
from an airplane flying over Lake Erie in Ohio, to the NASA Glenn
Research Center in nearby Cleveland, to the NASA White Sands Test
Facility in New Mexico, to LCRD in GEO, to ILLUMA-T on the ISS,
and then back. In June 2024, ILLUMA-T communicated with LCRD for
the last time and powered off.

"Our success with ILLUMA-T lays the foundation for streaming HD
video to and from the moon," says co-principal investigator Jade
Wang, an assistant leader of the Optical and Quantum
Communications Group. "You can imagine the Artemis astronauts
using videoconferencing to connect with physicians, coordinate
mission activities, and livestream their lunar trips."

https://phys.org/news/2024-11-communications-user-terminal-historic-moon.html
 

This is Shortwave Radiogram in MFSK64

Please send your reception report to radiogram@verizon.net

 

This week's images ...


Flowers in the indoor conservancy at the Minnesota Landscape
Arboretum. https://tinyurl.com/23u95lzm ...

Sending Pic:200x152C;










Looking like a face, this image combines mid-infrared light from
NASA’s James Webb Space Telescope, and ultraviolet and visible
light from NASA’s Hubble Space Telescope. The smaller spiral on
the left, IC 2163, passed behind NGC 2207, the larger spiral
galaxy at right. https://tinyurl.com/22xnqr33 ...

Sending Pic:242x111C;








Migratory birds fly in the Hongze Lake Wetland National Nature
Reserve in Suqian, Jiangsu province, China, October 30.
https://tinyurl.com/22gwwyh8 ...

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Scottish photographer David Gilliver uses a light sabre and long
exposure to create effects like this "Ribbon Dance."
https://tinyurl.com/27tgh3r9

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The Stone Bridge over Bull Run, west of Washington DC, at sunrise
November 3. https://tinyurl.com/27l5tzl7 ...

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Guelder Rose berries at the Lewes Urban Arboretum in Lewes,
England. https://tinyurl.com/27oonzcx ...

Sending Pic:127x206C;










Red autumn leaves at the Westonbirt Arboretum in Gloucestershire,
England. https://tinyurl.com/2dbm366f ...

Sending Pic:137x182C;








A large tree in Gaithersburg, Maryland, showing its colors.
https://tinyurl.com/29yzqom8 ...

Sending Pic:153x202C;










Our painting of the week is "Murnau [Germany], Street With Women"
(1908) by Wassily Kandinsky. https://tinyurl.com/2y2mj6bf ...

Sending Pic:211x152C;










Shortwave Radiogram returns to MFSK32 ...



 

RSID: <<2024-11-08T00:58Z MFSK-32 @ 9265000+1500>>
 

This is Shortwave Radiogram in MFSK32 ...

 

Shortwave Radiogram is transmitted by:

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