Orbiting Solar Observatory and Conflicting Internet Sources

Forty years ago today — August 9, 1969 — an LTTAT-Delta rocket launched from Cape Canaveral carrying the sixth Orbiting Solar Observatory (OSO-6). According to the National Space Science Data Center, “OSO 6 was the sixth in a series of satellites designed to conduct solar physics experiments above the earth’s atmosphere during a complete solar cycle.” The spacecraft operated successfully until the end of 1972.

One curious thing: the first source on which I found the OSO-6 anniversary said it launched from Vandenberg Air Force Base. Just goes to show, you can’t believe everything you read on the Internet.

Oh, and LTTAT-Delta refers to a “long-tank thrust augmented Thor-Delta,” which started launching in 1968 and made many successful launches according to NASA.* In case you were wondering.

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*Yes, some other Internet sources contradict this. So pick the source in which you have the most trust.

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Around the World by Zeppelin — and by Shuttle

Eighty years ago in aviation history — August 8, 1929 — the German airship Graf Zeppelin began its historic and highly publicized flight around the world.

(Photo of Graf Zeppelin in Los Angeles during the around-the-world flight. Click to enlarge. Image from www.airships.net.)

U.S. newspaper magnate William Randolph Hearst paid half the cost of the flight in exchange for exclusive media rights. The first leg of the voyage took the airship from Germany to Lakehurst, New Jersey, where the official around-the-world flight would begin. That flight ended back in Lakehurst on August 29, the first passenger-carrying flight around the world, in 12 days and 11 minutes of actual flying time. For more on the Graf Zeppelin, see this airship site.

How far flight technology progressed in six decades, that 20 years ago on the same day — August 8, 1989 — the Space Shuttle Columbia would launch from the Kennedy Space Center on mission STS-28.


(STS-28 mission patch. Click to enlarge. NASA image.)

While the Graf Zeppelin had traveled a little over 21,000 miles around the world, Astronauts Brewster H. Shaw, Richard N. Richards, James C. Adamson, David C. Leestma, and Mark N. Brown traveled about 2.1 million miles in orbit around the planet. They accomplished a classified Department of Defense mission and landed at Edwards Air Force Base five days later. (I can’t remember if I saw that landing or not — it was early morning Pacific time — but I know it wasn’t one that I supported as part of the AF Flight Test Center shuttle team. But even if I didn’t see it, I’m sure I heard the double sonic boom.)

Also on this date in 1989, the European Space Agency launched the Hipparcos satellite on an Ariane rocket out of Kourou, French Guiana. Hipparcos was an “astrometry” mission, i.e., to measure the heavens. It “pinpointed the positions of more than one hundred thousand stars with high precision, and more than one million stars with lesser precision,” according to this ESA web page.

All this makes me want to go on an around-the-world journey. But where should I go?

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Space Imaging — From Explorer to Kepler

Fifty years ago in space history — August 7, 1959 — the Explorer-6 satellite launched from Cape Canaveral on a Thor Able rocket.

(Explorer-6 satellite. Click to enlarge. NASA image.)

Explorer-6 was small and spheroidal, with four solar array “paddles,” and was launched to study space radiation, cosmic rays, and other phenomena. It also carried “a scanning device designed for photographing the earth’s cloud cover,” according to this NASA page, and sent back the first crude television images of earth from space.

And 40 years ago today — on August 7, 1969 — the Soviet Union launched the Zond-7 circumlunar spacecraft from Baikonur on a Proton-K* rocket. Zond-7 performed a lunar flyby on August 11 and returned to earth on August 14, carrying color photographs it had taken of the Earth and the Moon.

We’ve come a long way in terms of imaging technology, with the new Kepler space observatory having “captured the light of a gas giant orbiting a star over a thousand light years away.” From the Spaceflight Now story, “Kepler [was] able to detect the light of the gas giant, determine its phases and know when it had vanished from view behind its sun.” Here’s an animation showing the light curve Kepler detected and its interpretation.

Amazing.

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*It amazes me that the Proton rocket is still operating out of the Baikonur Cosmodrome, and I’m thankful that I got to see those operations.

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A Busy Launch Day in Space History

Two interesting launches occurred 15 years ago today — August 3, 1994.

  • From Edwards Air Force Base, California, a Pegasus rocket launched the Advanced Photovoltaic and Electronic Experiments spacecraft off the wing of NASA’s B-52 carrier aircraft. APEX was part of the USAF Space Test Program, and carried instruments to study the effects of the Van Allen radiation belt.
  • And from Cape Canaveral, what might have been an “ordinary” launch (except that in space launch there’s still no such thing) of DIRECTV-2, except that this spacecraft carried the “SpaceArc” time capsule. SpaceArc — the “space archive” — consisted of a reel of 35-mm optical tape containing essays, poems, written music and artwork: “the personal expressions of more than 47,000 people from around the world, representing 52 countries,” according to the old web site. The archive included messages from then Vice-President Al Gore and his predecessor, Dan Quayle, and is intended to remain in orbit for thousands of years after the satellite’s useful life.

And five years ago — on this date in 2004 — the Messenger probe to Mercury was launched from Cape Canaveral. Messenger is scheduled to arrive at Mercury and begin orbiting the planet in March 2011 (591 days away, if you’re counting). Read more about the Messenger mission on the Johns Hopkins University Applied Physics Laboratory web site.

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Shuttle COLUMBIA Launches Lands — Five Years Apart

Fifteen years ago today — July 23, 1994 — NASA mission STS-65 ended when Space Shuttle Columbia landed at Kennedy Space Center. Astronauts Robert D. Cabana, James D. Halsell, Richard J. Hieb, Carl E. Walz, Leroy Chiao, Donald A. Thomas, and Chiaki Naito-Mukai had launched from KSC on July 8. The mission was the second flight of the International Microgravity Laboratory, which carried 82 Space Life Science and Microgravity Science experiments — over twice as many as it had on its first mission. Chiaki Naito-Mukai was the first Japanese woman to fly in space and set the record for longest flight to date by a female astronaut.

Then, ten years ago today — July 23, 1999 — Shuttle Columbia launched from KSC on mission STS-93, carrying astronauts Eileen M. Collins, Jeffrey S. Ashby, Steven A. Hawley, Catherine G. Coleman, and French astronaut Michel Tognini. Eileen Collins was the first woman to command a Space Shuttle mission as she directed the deployment of the most sophisticated X-ray observatory ever built: the Chandra X-Ray Observatory, originally known as the Advanced X-ray Astrophysics Facility.

For more on these missions, see the STS-65 and STS-93 pages. In between those two flights, Columbia flew an additional eight missions.

Oh, and forty years ago today, the Apollo-11 astronauts were on their way back to earth. Take a look at the Smithsonian’s commemorative site if you have a few minutes.

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Cometary Impact and Other Space History Items

Fifteen years ago today — July 18, 1994 — fragment G of comet Shoemaker-Levy 9 comet hit the planet Jupiter. Pieces of the comet had started impacting the gas giant on July 16, and continued to bombard it until July 22.


(Hubble Space Telescope images of the Shoemaker-Levy “Fragment G” impact. The bottom image shows the plume about 5 minutes after impact on July 18, 1994, and the next shows the “fresh impact site” about 90 minutes later. The upper images show the evolution of the impact area over the next few days due to Jupiter’s winds. NASA image from http://www2.jpl.nasa.gov/sl9/hst.html.)

In other space history, which I didn’t post yesterday because it was a crazy busy day:

Eighty years ago yesterday — July 17, 1929 — Dr. Robert Goddard launched a liquid-fueled rocked in Auburn, Massachusetts. The vehicle carried a small camera, a thermometer, and a barometer, and actually generated publicity about a possible “moon rocket.”

It only took forty years before men were on their way to the moon on the same date. Pity that we haven’t made similar progress since.

And 25 years ago yesterday — July 17, 1984 — Soyuz T-12 launched from the Baikonur Cosmodrome to carry Vladimir A. Dzhanibekov, Svetlana Y. Savitskaya, and Igor P. Volk to the Salyut 7 space station. A few days later, Savitskaya would become the first woman to conduct a spacewalk.

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Apollo-11's Journey Begins, 40 Years Past

Forty years ago today — July 16, 1969 — Neil A. Armstrong, Edwin E. “Buzz” Aldrin, and Michael Collins launched from the Kennedy Space Center aboard a Saturn V booster (number SA-506) on Apollo-11, the first manned mission to land on the moon.


(Apollo-11 mission patch. NASA image.)

I’m not old enough to remember President Kennedy and his bold proposal to land men on the moon and return them safely to earth. I wish I remembered more about the lunar landings as they happened, but memory is a fickle thing and my childhood memories are fleeting at best.

Thankfully I have access to the Internet to augment my memory. From one of the NASA history sites, here’s a list of the firsts accomplished by Apollo-11:

  • First lunar landing and return mission.
  • First test of landing radar and other landing systems on the Lunar Module under operational conditions.
  • First lunar surface extravehicular activity (EVA).
  • First human foot print on the lunar surface: Neil Armstrong’s left foot.
  • First man-made items on the lunar surface, including: the first seismometer, first laser reflector, and first solar wind experiment deployed on the Moon.
  • First lunar soil and rock samples returned to Earth.
  • First use of mobile quarantine facility.
  • First use of the Lunar Receiving Laboratory at the Manned Spacecraft Center (now Johnson Space Center).

And, my personal favorite: the first meal eaten on the Moon “consisted of four bacon squares, three sugar cookies, peaches, pineapple-grapefruit drink and coffee.”

If you want to learn more, NASA’s Human Space Flight Office has a good web page about Apollo-11, and the “We Choose the Moon” site is a nifty interactive tribute to the mission.

I don’t know if it’s because of the Apollo program and the space enthusiasm that permeated the country when I was young, or because of STAR TREK, Robert A. Heinlein, Larry Niven, and the many science fictional adventures I enjoyed, but when I look at the moon I still want to go there, live there, explore and build there. And since I can’t do that in real life, I do it in my imagination and in my stories — even if only I and a few friends will ever enjoy them.

So Godspeed, Apollo-11, and thanks.

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Space History and Space Today: Launching Remote Sensing Spacecraft

Five years ago today — July 15, 2004 — NASA’s Aura spacecraft launched on a Delta-2 rocket from Vandenberg Air Force Base. Aura carries sensors designed to study atmospheric chemistry and dynamics, e.g., changes in ozone. You can learn more about the Aura mission at this NASA page, and also at this NASA (Goddard Space Flight Center) page.


(Aura spacecraft in the high-bay. Note the spreader bar at the top and, for scale, the people at the bottom. NASA photo from the Aura spacecraft gallery.)

Speaking of launches, congratulations to the SpaceX team for successfully launching their Falcon-1 booster on its first commercial mission yesterday. They put a Malaysian remote imaging satellite into orbit, and from all accounts did a good job of it. Here’s the Spaceflight Now story about the launch.

And speaking of launches, today is the eve of a very special space anniversary … which we of course plan to cover in a blog entry tomorrow.

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A Moon Launch, and the MOON Movie

Forty years ago today — July 13, 1969 — three days before the U.S. launched Apollo-11, the Soviet Union launched the Luna-15 probe on a Proton-K rocket from the Baikonur Cosmodrome. According to aerospaceweb.org,

Luna 15 began its journey on 13 July 1969 as a last-minute attempt to regain national pride in the face of the pending Apollo landing. Luna 15 was a fairly sophisticated craft designed to land on the surface of the Moon and collect soil samples to be launched back to Earth. It was hoped that the soil could be returned prior to Apollo 11’s splashdown making the Soviets the first to bring lunar material back to Earth. Though the probe was successfully launched and made its way into lunar orbit, bad luck again struck the Soviet lunar program. Luna 15 had completed 52 orbits of the Moon when it attempted to make a soft landing on the surface. Unfortunately, the final retrorocket burn failed and the probe crashed in the Sea of Crises on 21 July 1969, just one day after Neil Armstrong and Buzz Aldrin made their historic walk on the Moon.

In contemporary space-related news, we saw the movie MOON yesterday at the Galaxy Cinema here in Cary. It was, as we’d been led to believe, impressive in its production quality — so much that at times it was easy to forget it was an independent film. The issues with the lunar setting (e.g., noise where there shouldn’t be any, the inconsistent treatment of gravity) and the lunar infrastructure and equipment (e.g., no alarm on the secret door, vehicles sturdy enough to withstand rocks landing on them) would only be problematic for geeks. (Yes, I qualify on that score.) It had a few plot holes as well, but all in all was a worthy effort and an enjoyable ninety-seven minutes.

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Does the Moon Matter?

As someone who a) loves to look up at the bright, shining moon, and b) has written two novels about life at a lunar colony,* I naturally answer “yes.”

New Scientist apparently agrees, in its commemorative series of articles entitled “Why the Moon Still Matters.” This month, if you didn’t already know, is the 40th anniversary of the Apollo-11 lunar landing. As you might imagine, that’s a big deal to the likes of me.

In related news, here’s a Spaceflight Now article about NASA’s preparations for launching the Ares X-1, which will become the country’s “new moon rocket.”

So, to repeat: yes, I think the moon matters.

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*The first one, like so many first novels, was not worthy of being published. I thought it was, and so did a very small publisher, but that’s a story for another day. The second one, WALKING ON THE SEA OF CLOUDS, is making the submission rounds now. I think it’s a much better book, so here’s hoping….

(Image Credit: Full moon image by longhorndave, licensed under Creative Commons, from Flickr)

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