Hubble Space Telescope 25th Anniversary Special Event, April 2015


Thank you for commemorating with us the Hubble Space Telescope 25th anniversary. We operated a special event station with our NN4SA callsign from April 24 to 29, 2015. Our dates followed the original STS-31 Space Shuttle Discovery mission, which deployed the telescope into Low Earth Orbit in 1990. The telescope has since been serving as a premier astronomical observatory above the Earth’s atmosphere, enabling science work that had never been possible before. Its outstanding high resolution pictures also serve to bring the Universe and the science work to all of humanity.

During our special event we logged 1032 QSOs with hams from across the entire Continental United States and Puerto Rico, and from 39 countries. Given our schedule and the band conditions, we decided to operate primarily on 20 meters SSB. During some days we also operated SSB on 10, 15, and 17 meters. And during some evenings we operated 40 meters SSB. When band conditions were especially poor, or when we needed to give our voices a break, we operated JT-65 across the HF bands from 10 to 80 meters. And we operated 40 meters RTTY.  We self spotted on the DX cluster.  We thank our contacts and other hams who also spotted us.

If you contacted us and would like a paper QSL, please send a business sized self-addressed stamped envelope (SASE) to this address.  Please include your QSL card, if you have one. We mailed our QSL card for this special event in September 2015.

Marshall Amateur Radio Club, NN4SA
NASA MSFC, C/O Don Hediger, ES35
Huntsville, AL 35812

We also QSL through ARRL Logbook of the World and eQSL.

Our operators were N4MSN, KB5EZ, WA2JQZ, KK4IKR, and KA0S. The beautiful QSL card was designed by KA0S.

Thank you for your participation in our Hubble Space Telescope special event!


The Hubble Space Telescope has a 25th anniversary website:

The wesbite lets you explore the astronomy.

You can participate in an online vote for your favorite Hubble Space Telescope image, ongoing now. These images are the top contenders:
You can vote here:

NASA letterhead

Hubble at 25

It’s a tribute to the hard work, ingenuity and imagination of so many in our NASA Family that this week we’re able to mark the 25th anniversary of the Hubble Space Telescope.

For a quarter century and counting, Hubble has cast the collective eye of humanity on the previously unknown and unimagined. At once a scientific marvel and gallery of wonder, it continues to teach us about the vastness and beauty of the universe. It looks both inside our solar system and into the great beyond, including far off galaxies and distant stars.

Having made more than a million observations since its mission began in 1990, Hubble has rewritten the astrophysics and planetary science textbooks.

Astronomers have published upwards of 12,700 scientific papers based on information it produces. Each and every year, it generates 10 terabytes of new data and discovery – enough data to fill the entire collection of the Library of Congress.

At the same time, Hubble continues to provide us with the intellectual foundation for future robotic and human expeditions – including our Journey to Mars.

More information about Hubble is available at

As Traci Watson wrote in USA Today’s recent special edition: “It’s likely that no other modern-day scientific instrument has stirred as many passions as the Hubble Space Telescope … Before Hubble few of us had any notion of how the cosmos looked.

Now we all know … pinwheels of stars, gauzy pillars of gas and dust, bright galaxies scattered across a dark backdrop.”

On a personal note, I’m proud to have been a part of such a fine crew that launched Hubble in 1990, along with Loren Shriver, Dr. Steve Hawley, Dr. Kathy Sullivan and Bruce McCandless. I’m also immensely proud to work with all of you.

As you know, Hubble is the first chapter in an ongoing story. In 2018 we’ll launch the James Webb Space Telescope that will be placed in orbit about a million miles from Earth. It will allow us to observe the most distant objects in the universe and to see unexplored planets around distant stars. It will shed light on the birth of galaxies and expand our search for undiscovered planets beyond our solar system. You can learn more here:

Thanks for all you are doing to reach new heights and reveal the unknown.

Charlie B.

[Posted by WA2JQZ with N4MSN]

One response to “Hubble Space Telescope 25th Anniversary Special Event, April 2015

  1. Pingback: Hubble Space Telescope 25th Anniversary Special Event | MSFC Amateur Radio Station

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