Archive for the ‘Observation’ Category

Space Junk

Friday, September 5th, 2008

The more missions we undertake and the more satellites that launch into orbit, the more space "junk" that we’re inevitably left with. And we’re tracking much of it:

The U.S. Strategic Command maintains a catalogue currently containing about 13,000 objects, in part to prevent misinterpretation as hostile missiles. Observation data gathered by a number of ground based radar facilities and telescopes as well as by a space based telescope[6] is used to maintain this catalogue. Nevertheless, the majority of debris objects remain unobserved. There are more than 600,000 objects larger than 1 cm in orbit (according to the ESA Meteoroid and Space Debris Terrestrial Environment Reference, the MASTER-2005 model).

Now much of this debris can be tracked in realtime via Google Earth. Pretty cool.

"With the recent discussion of the ISS having to dodge some space junk, many people’s attention has once again focused on the amount of stuff in orbit around our planet. What many people don’t know is that USSTRATCOM tracks and publishes a list of over 13,000 objects that they currently monitor, including active/retired satellites and debris. This data is meaningless to most people, but thanks to Analytical Graphics, it has now been made accessible free of charge to anyone with a copy of Google Earth. By grabbing the KMZ, you can not only view all objects tracked in real-time, but you can also click on them to get more information on the specific satellite, including viewing it’s orbit trajectory. It’s an excellent educational tool for the space-curious. Disclaimer: I not only work for Analytical Graphics, but I’m the one that wrote this tool as a demo."

The U.S. Strategic Command tracks the junk mainly to prevent misinterpretation as hostile missiles; Google Earth does it mainly to offer another cool tool for nerds like myself to play with. But whatever our tracking purpose, one commenter on Slashdot may have the cure to all of our debris woes:

…we should put a black hole in orbit to take care of the debris. we can name it Hoover.

Angola’s Drive to Satcom

Monday, September 1st, 2008

 

 

It’s official, according to the Angola Press Office:

O Governo oficializou, mediante publicação no Diário da República de 15  de Julho último, o projecto de criação do satélite angolano "Angosat", integrando a sua produção, lançamento e operação.

A resolução inserida na I Série, nº 130 deste órgão oficial, a que a Angop teve acesso, refere que o projecto inclui também a criação de recursos humanos e infra-estruturas.

O referido diploma aprova igualmente os contratos de empreitada referentes à construção, colocação em órbita e operação do satélite Angosat, celebrado entre o Ministério dos Correios e Telecomunicações e a Empresa Federal Unitária Estatal "Rosoboronexport", em representação do consórcio de empresas russas, no valor de 327 600 000.00 dólares.

O projecto tem em consideração que as características do território nacional, em especial a sua dimensão e densidade populacional, aliadas a necessidade de harmonização do crescimento económico, mesmo nas zonas mais recônditas do país, torna necessária uma infra-estrutura de telecomunicações via satélite a curto e médio prazos.

Tem ainda em conta a necessidade crescente de recursos de transmissão incluindo por satélite, face ao engajamento do Estado angolano na criação de condições que tornem o país um membro activo da sociedade da informação através da utilização crescente das tecnologias de informação que requerem banda larga.

 

Thank you, Red Orbit, for the efficient translation:

The government of Angola has formalized, through an announcement in the State Gazette of last 15 July, the project of creating the Angolan satellite dubbed "Angosat", including its production, launch and operation.

Angop learnt on Saturday [23 August], from decision included in the First Series No 130 of this official organ, that the project also includes the creation of human resources and infrastructures.

The referred document also approves the contracts for the construction, placing in orbit and operation of the Angosat satellite, signed between the Ministry of Post Office and Telecommunication and the state-run federal unit firm "Rosoboronexport", in representation of the consortium of Russian companies, estimated at 327.6m US dollars.

The project takes into consideration that the characteristics of the national territory, especially its dimension and population density, linked to the need of harmonizing the economic growth, even in the most remote zones of the country, demands a short- and mid- term satellite telecommunication infrastructure.

It also takes into account the growing demand for resources of transmission by satellite, due to the Angolan state’s engagement in the creation of conditions that turn the country into an active member of the information society through the growing use of information technologies that demand broad band system.

 

Petro dollars can help rocket science prosper almost anywhere.

Uncommon Carrier

Wednesday, July 30th, 2008

 

Clay T. Whitehead passed away last week. Former director of Nixon’s Office of Telecommunications Policy, he was largely responsible for completely changing the commercial satcom business the U.S. and Europe. RCA, Hughes, PanAmSat and SES et. al. owe their success to his vision and work.

Excellent obituary by Adam Bernstein in the Washington Post:

Clay T. "Tom" Whitehead, 69, who helped the cable industry flourish by bringing competition to the domestic satellite market in the early 1970s, died July 23 at Georgetown University Hospital. He had prostate cancer.

During the Nixon administration, Mr. Whitehead became the country’s first telecommunications policy adviser and championed free markets in the satellite business. He later revolutionized the way communications satellites were sold — outright to cable providers instead of leasing them to those companies.

Starting in the mid-1980s, he challenged Europe’s state-owned television systems by spearheading the first private Pan-European television satellite system, Luxembourg-based SES Astra. It became one of the continent’s most popular and profitable private satellite systems.

Dr. Whitehead had degrees in engineering and management but little knowledge of communications when in 1970 he was appointed the first director of the old White House Office of Telecommunications Policy. Considered bright and able, he said his chief concern was trying to get the federal government to become "more anticipatory" in addressing rapid technological changes.

During his four years overseeing the office, he sough to demolish the monopoly model that had given tremendous power to large international corporations such as Comsat and Intelsat. He set in motion policies that allowed domestic satellite competitors to succeed, and far more cheaply.

His work had an enormous impact on the cable industry, which because of his efforts could get its own programming channels via satellites to a national audience. Before, that reach was impossible unless a cable channel wanted to lease land lines from the monopoly provider AT&T.

HBO, the Turner cable networks and C-Span were among the key beneficiaries of Dr. Whitehead’s decisions.

Henry Geller, a Washington telecommunications lawyer and Federal Communications Commission general counsel, said Dr. Whitehead "changed the entire landscape of television in the United States and throughout the world" by advocating an "open skies" policy toward domestic satellites.

Geller said Dr. Whitehead "stopped the FCC cold, which was still promoting Comsat as a domestic monopoly. Satellite service became more competitive, allowing such companies as RCA and Hughes to achieve greater innovations more cheaply."

Dr. Whitehead was credited with formulating policies that gave more autonomy to local stations in the public broadcasting system, which was seen by some PBS executives as an attack on the service in large part because of Dr. Whitehead’s early reputation for antagonizing the press.

He called network television news a haven for "ideological plugola" and "elitist gossip." His criticisms extended to the public broadcasting system, which he called a "fourth network" for alleged liberal biases.

He apologized before a Senate committee, saying his own comments "did not serve a very useful purpose."

Clay Thomas Whitehead, was born Nov. 13, 1938, in Neodesha, Kan., and raised in Columbus, Kan.

An early interest in astronomy led him to the Massachusetts Institute of Technology, where he received a bachelor’s degree in electrical engineering in 1960 and doctorate in management in 1967.

He was a Rand Corp. economist before joining the Nixon team in 1968 as an expert on budget policies. He also helped create the Office Telecommunications Policy, which was folded into the Commerce Department’s National Telecommunications and Information Administration during the Carter administration.

In 1979, Dr. Whitehead became the founding president of Los Angeles-based Hughes Communications, a satellite-manufacturing subsidiary of Hughes Aircraft Co. His greatest achievement was the Galaxy program of commercial communications satellites, which addressed the needs of a rapidly growing cable television market.

He likened the Galaxy program to a mall with an "anchor tenant," such as HBO. Each subsequent company would buy a piece of the satellite. This approach made enormous profits for Hughes, reportedly $200 million for the 24 transponders on the Galaxy I that launched in 1983.

"I suppose the thing I like to do most is set things up and make them run," Dr. Whitehead had once told the New York Times. He left Hughes in 1983 because he said he tired of working for a big company.

He spent the next two years laying the financial, technical and political groundwork for a $180 million enterprise that became SES Astra.

Some European politicians criticized the proposed system as "Coca-Cola satellite" and dismissed it as cultural imperialism, all to protect their government-run television channels.

"I think we’re seeing wounded national pride," Dr. Whitehead told Forbes magazine in 1985. "There would be more European programming if a large commercial marketplace already existed there."

SES Astra, in which Luxembourg is a major stakeholder, grew tremendously. Its programming is beamed into more than 65 million homes, and its worth was estimated to be more than $1 billion.

A contractual dispute led Dr. Whitehead to sue SES Astra and the Luxembourg government for $600 million. He was consumed by the lawsuit for a decade, until prevailing in 2003. The final agreement was confidential.

Rapid TV News did provide a settlement figure in its write-up:

Unfortunately he spent some 10 years of his life in a legal squabble with SES Astra (and the Luxembourg government) claiming a total of $1.8bn and receiving some €30m as dividend payments in a Court-ordered settlement in June 2002.

And as far as the extent of ASTRA’s reach in Europe*, the number are greater today than they’ve ever been:

  • At year end 2007, 117.2 million homes receive audiovisual broadcast and broadband services via ASTRA at 19.2º, 23.5°, 28.2º East or SIRIUS at 5.0º East.
  • The ASTRA Group** consolidated its position as the top European satellite fleet for DTH reception.
  • By end of 2007, 50.3 million homes receive ASTRA or SIRIUS services directly via satellite. A further 66.9 million homes receive services via ASTRA Group satellites in cable.
  • More than 4 out of 10 of all TV homes within the ASTRA Group footprint are now receiving digital services.
  • Satellite continues to be the most popular digital reception mode, with a 58% share of the total digital market.
  • 81% of all ASTRA satellite homes are digital.

* 35 countries within the ASTRA Group footprint
** ASTRA Group reach includes ASTRA at 19.2°E, 23.5°E, 28.2°E and SIRIUS at 5.0°E

DIY Friday: Solar Death Ray

Friday, July 18th, 2008

It’s another lazy, hot summer weekend…what to do to pass the time?

Crochet a new bathing suit? Nah.

Make a beaded pull for the ceiling fan? No thanks.

Craft some sunglasses out of popsicle sticks and tinted saran wrap? Maybe next week.

I’m looking for something a bit more bold to shake up the summer doldrums: A SOLAR DEATH RAY.

You may have seen the “#1 solar death ray on the Internet” here. But that model was so 2006.

Yes, the competitive world of solar death ray construction has moved well beyond that.

This guy, inspired by the success of the original, bought himself a c-band antenna and made a device capable of generating 13,000 watts. He calls it the “light sharpener” and you can find full instructions on his site to make your own.

The only question is, to what end will you direct the power of your very own light sharpener? The answer, clearly, is remaking the classic American cook-out.

 

Of course, Really Rocket Science was ahead of the curve on this one…but we have to admit that his is bigger.

SOCOM: Moving With Satcom

Thursday, July 17th, 2008

 

 

 

Carl von Clausewitz once famously observed that war is the extension of politics by other means.

So it seems fitting, at least in the sense that truisms are true, that the satcom-on-the-go platform that has been bringing the American people live coverage of the presidential election (which we blogged about here) is now being used by U.S. Special Forces in the Middle East.

We’re speaking, of course, of the ArcLight Mobile Satellite Communication System by ViaSat. We’ve written before about how the broadcast networks use the system in moving vehicles, and how the same platform is being used by AMERICOM and KVH for maritime mobile broadband

Now comes a press release announcing that ViaSat Airborne Broadband Ku-band satcom is being deployed by U.S. Special Forces for real time data and video communications: 

The system is already in use in the Middle East and coverage areas will expand as more terminals and hubs are delivered. This new operational capability, an extension of the ArcLight® mobile broadband system, is installed on C-130 aircraft, primarily for sending high resolution video back to higher command authorities for further analysis and identification.

Here’s a video of the type of real-world situations that the ArcLight system can help commanders in-field and at the United States Special Operations Command address. It’s taken from an AC-130 Gunship observing insurgents in Iraq. (Warning: Video contains violence and may not be suitable for all viewers.)

 

 The C-130 satcom system is built around the advanced ArcLight modem and networking technology using a spread spectrum waveform to enable the use of mobile satellite antennas as small as 29 centimeters in diameter. The antenna is enclosed in a radome attached to a redesigned emergency escape hatch. In a few minutes, operators can configure an aircraft for their specific mission without any permanent aircraft alterations, then quickly return the aircraft to its normal configuration when the mission is complete, while maintaining safety-of-flight integrity. The U.S. Air Force-certified hatch-mount terminal enables secure access to Department of Defense wide area networks at raw data rates up to 10 Mbps inbound and 512 kbps outbound while airborne.

EchoStar XI Launch Update

Tuesday, July 15th, 2008

Set for tonight at 10:21pm PST via Sea Launch:

Long Beach, Calif., July 14, 2008 – The Sea Launch team arrived at the launch site in the Equatorial Pacific over the weekend and initiated a 72-hour countdown, in preparation for the launch of the EchoStar XI satellite on Tuesday, July 15. Liftoff is planned at 10:21pm PDT, July 15 (5:21 GMT, July 16), at the opening of a two-hour launch window.

Upon arrival at the launch site, at 154 degrees West Longitude, the team ballasted the Odyssey Launch Platform to launch depth. A final series of tests on all systems is now underway. Prior to fueling operations, the platform will be evacuated, with all personnel safely positioned on the ship, about four miles from the platform. One hour after liftoff, a Zenit-3SL vehicle will insert the 5,511 kg (12,150 lb) EchoStar XI satellite into geosynchronous transfer orbit, on its way to a final orbital location of 110 degrees West Longitude.

Built by Space Systems/Loral (SS/L), the powerful 20-kW spacecraft, carries a Ku-band payload that will support DISH Network’s direct broadcast television service for its customers throughout the United States. This spacecraft is designed for a 15-year service life on orbit. This is the 3rd mission Sea Launch is executing for DISH Network and the 8th mission with a spacecraft built by SS/L.

Check out a live still webcam from the platform here and here. If you’re going to stay up late, you can watch live coverage of the launch here. And Sea Launch has extensive coverage of the mission and satellite here.

With DISH Network promising 130 HD channels by the end of 2008, this satellite launch is, like all of them, very important. And this launch couldn’t be mre timely, as DISH just surpassed 100 channels just a few days ago. And this means that DISH may have just surpassed DirecTV.

Canadian Innovation

Wednesday, July 9th, 2008

Some interesting news coming out of Canada recently, some of it satcom-related, and some not. Ciel Satellite received "approvals in principle" from Industry Canada to develop a half-dozen orbital locations over North America, right in the "sweet spot" for direct-broadcast satellite TV. Using the Ka-band for BSS spectrum (17/24 GHz) represents new capacity and will probably lead to more innovation. More HDTV channels? You better believe it.

 

We know RIM’s BlackBerry represents Canadian innovation at its finest, and the Canadarm contribution to the space program is well-known, but we couldn’t help but notice the news from Sky Hook International for a new transport system — using blimps:

A Calgary company will team up with aerospace giant Boeing to build a giant dirigible-like craft capable of lifting heavy loads for the oil and gas, mining and forestry sectors.

SkyHook International Inc. president Peter Jess said the companies plan to build two prototypes of the JHL-40 rotorcraft — a combination helicopter and blimp — before proceeding with a production run of 50 to 60 units.

According to company officials, there isn’t anything quite like it in existence and the prototypes will mark the commercial development of a whole new breed of aircraft.

"The list of customers waiting for SkyHook’s services is extensive and they enthusiastically support the development of the JHL-40."

The patented craft will be capable of hauling 40-tonne loads up to 320 kilometres in areas without basic infrastructure such as roads.

Jess said the first two initial craft would be deployed in the Arctic.

Formerly with Dome Petroleum, Jess said he came up with the idea decades ago while working in the Far North.

Boeing will build the prototypes at its manufacturing facility in Pennsylvania while SkyHook will own, maintain and operate the aircraft on a worldwide basis.

The JHL-40 has yet to be certified by aviation authorities in Canada or the United States and won’t come into service until 2012.

Innovation leads economic development in any business — especially satcom.

 

First Storm of the Season

Monday, July 7th, 2008

 

It’s officially hurricane season and Bertha is gearing up to be the year’s first storm.

Whether you might find yourself in the eye of the storm or you’re just intrigued by extreme weather, you’re sure to appreciate the fun tools that the National Weather Service puts out for the public. This one lets you track the storm’s movements. And this one shows wind speeds.

How do they get all the data for these cool images? Why satellites, of course. And the NOAA has a full arsenal. But how does all the information coming from those satellites turn into something we can understand, like this animation of the season’s first hurricane?

With Giovanni it’s simple. And no, that isn’t the name of an Italian tropical storm guru…

Giovanni is actually an acronym for the GES-DISC (Goddard Earth Sciences Data and Information Services Center) Interactive Online Visualization ANd aNalysis Infrastructure.

In other words, it’s a web-based application developed by NASA that is available to anyone with a computer and a bit of spare time. But beware, for those of us who’ve lost hours tooling around on Google Earth, this can become a bit addictive…

Satcom in Uganda

Tuesday, July 1st, 2008

We’ve written extensively about efforts to connect Africa with the digital world (see Com in Africa: A Changing Marketplace, A Pan-African E-Network, With India’s Technology, and Which Satellites Aid Oil Exploration in Africa?, for examples).

Now, East and Southern Africa are about to be connected to the global internet pipeline by undersea cable, and terrestrial networks are rapidly expanding in major towns.

But what about the more remote nations of Africa, such as Uganda, home of the Bwindi Impenetrable National Park?

 

Like Nigeria, Uganda relies upon satellite for its principle mode of digital communications

Satellite transmission remains the most apt mode of digital communication in Uganda and much of Africa where spotty infrastructure and geographical isolation still pose a formidable challenge to the deployment of fibre optic cables, according to an official from Afsat Communications ltd.
 
Afsat is Africa’s largest provider of Very Small Aperture Terminal, (VSAT) based internet services. At a June 19th media presentation in Kampala on the potential of satellite technology in bringing internet access, Afsat’s General Manager Job Ndege said VSATs were still the best and cost efficient means of bringing the Ugandan masses access to internet.

Currently Afsat is marketing its services in Uganda under the brand name iWay Africa and connects its clients to: “fast, reliable, efficient and cost effective broadband intenrt” and “Tailor designed and highly available intra-corporate connectivity solutions.”

The company is present in 28 sub-Saharan African countries and has installed about 5200 VSATs on both the broadband and intra-corporate platforms. Lately there has been a lively debate among the ICT industry analysts, policy makers and academics on the relevance of VSATs in the wake of efforts, now in advanced stages, to connect East and Southern Africa to the word’s fibre optic network.

Monitor Online has a good interview with Afsat’s Job Ndege, who notes that VSAT is immune to the problems of poor infrastructure "because it is possible to have a VSAT system that completely bypasses the local infrastructure.
This is a key advantage of VSAT as compared to other technologies."

For delivery of the digital connection, Afsat’s iWay Broadband utilizes the Intelsat 10 (IS-10) and NSS-7 satellites. 

Interference in the Ku-band

Monday, June 30th, 2008

 

 

Last week a petition that floated up to the FCC prompted multiple meetings between the federal regulatory agency, Global VSAT Forum (GVF), and the European Satellite Operators Association (ESOA). The contents of the petition? A request by the Utilities Telecom Council (UTC) and Winchester Cator, LLC (remember these, we’ll come back to them in a second) to allow shared, secondary terrestrial fixed service (FS) use of the 14.0-14.5 GHz band–a move that would cause harmful interference to fixed and mobile satellite-based services used by millions across the US.

The issue has been simmering for a few weeks now, with letters coming from the Satellite Industry Association since early June

So what dog does the UTC have in this fight? Well, they’re seeking access to the radio spectrum with a petition being circulating to gain support.

It doesn’t stop there, among the signatories of the petition is Winchester Cator, LLC, comprised of Jared Abbruzzese and Raj Singh, both of whom have been making all the wrong kind of news for a while now.

Jared Abbruzzese as been implicated in questionable dealings with Mobile Satellite Ventures (via Business Week), and Raj Singh was one of the owners of Motient, so he’s been at it for a while. Abbruzzese also got himself into some hot water with the New York State Legislature.

This surely won’t be the end of this saga. We’ll be sure to keep you updated.