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|Traded as||NASDAQ: IRDM|
S&P 600 Component
|Products||Satellite communications equipment|
|Services||Satellite voice and data services|
|Revenue||US$523.0 million (2018)|
|US$41.7 million (2018)|
|–US$13.4 million (2018)|
|Total assets||US$4.01 billion (2018) |
|Total equity||US$1.60 billion (2018)|
Number of employees
|450+ (2019) |
Iridium Communications Inc. (formerly Iridium Satellite LLC) is a publicly traded American company headquartered in McLean, Virginia. Iridium operates the Iridium satellite constellation, a system of 75 active satellites used for worldwide voice and data communication from hand-held satellite phones and other transceiver units.
- 1 History
- 2 Present status
- 3 Iridium satellite constellation
- 4 Subscriber equipment
- 5 Air safety communications
- 6 See also
- 7 References
- 8 External links
The Iridium communications service was launched on November 1, 1998 by what was then Iridium SSC. The first Iridium call was made by Vice President of the United States Al Gore to Gilbert Grosvenor, the great-grandson of Alexander Graham Bell and chairman of the National Geographic Society. Motorola provided the technology and major financial backing. The logo of the company represents the Big Dipper. The company derives its name from the chemical element iridium which has an atomic number of 77, equalling the initial number of satellites which were planned to be deployed.
The founding company went into Chapter 11 bankruptcy nine months later, on August 13, 1999. The handsets could not operate as promoted until the entire constellation of satellites was in place, requiring a massive initial capital cost running into billions of dollars. The cost of service was prohibitive for many users, reception indoors was difficult and the bulkiness and expense of the hand held devices when compared to terrestrial cellular mobile phones discouraged adoption among potential users.
Mismanagement is another major factor cited in the original program's failure. In 1999, CNN writer David Rohde detailed how he applied for Iridium service and was sent information kits, but was never contacted by a sales representative. He encountered programming problems on Iridium's website, and a "run-around" from the company's representatives. After Iridium filed bankruptcy, it cited "difficulty gaining subscribers".
The initial commercial failure of Iridium had a damping effect on other proposed commercial satellite constellation projects, including Teledesic. Other schemes (Orbcomm, ICO Global Communications, and Globalstar) followed Iridium into bankruptcy protection, while a number of other proposed schemes were never constructed.
In August 2000, Motorola announced that the Iridium satellites would have to be deorbited; however, they remained in orbit and operational. In December 2000, the US government stepped in to save Iridium by providing $72 million in exchange for a two-year contract and approving the fire-sale of the company from US bankruptcy court for $25 million, in March 2001. This erased over $4 billion in debt.
Iridium service was restarted in 2001 by the newly founded Iridium Satellite LLC, which was owned by a group of private investors. Although the satellites and other assets and technology behind Iridium were estimated to have cost around $6 billion, the investors bought the firm for about $35 million.
Iridium NEXT launch campaign
Iridium replaced its original constellation by sending 75 new Iridium satellites into space on SpaceX Falcon 9 rockets. The campaign also consisted of upgrades to Iridium ground infrastructure.
The Iridium NEXT launch campaign was announced in 2007. Within three years, Iridium completed financing and began work on launching new satellites. In June 2010, Iridium announced a fixed-price contract with Thales Alenia Space for the design and construction of the next-generation satellites for the upgraded constellation. Two weeks later, Iridium announced a $492 million contract designated the Falcon 9 as a major provider of launch services for the Iridium NEXT campaign, becoming the largest single commercial launch deal ever signed (simultaneously representing a benchmark in cost-effective satellite delivery to space).
On January 14, 2017, 10 years after the campaign was first announced, the first of eight Iridium NEXT launches took place with SpaceX from Vandenberg Air Force Base in California. Over the next two years, Iridium sent an additional 65 satellites into low Earth orbit to completely replace the original satellite constellation. The final Iridium NEXT launch took place on January 11, 2019, less than 2 years after the first launch.
The Iridium NEXT network covers the entire Earth, including poles, oceans and airways, with 66 satellites, with the remaining 9 acting as active backups, for a total of 75 launched. Six remain on the ground as spares for a total of 81 built.
Iridium Satellite LLC merged with a special purpose acquisition company (GHQ) created by the investment bank Greenhill & Co. in September 2009 to create Iridium Communications Inc. The public company trades on Nasdaq under the symbol "IRDM". The company surpassed one million subscribers in March 2018. Revenue for the full year 2018 was US$523.0 million with operational EBITDA of US$302.0 million, a 14% increase from $265.6 million in the prior year.
Matt Desch is the CEO of Iridium LLC.
Hosted Payload Alliance
Iridium is a founding member of the Hosted Payload Alliance (HPA), a satellite industry alliance program. Membership in the HPA is open to satellite operators, satellite manufacturers, system integrators, and other interested parties.
Iridium satellite constellation
The Iridium system requires 66 active satellites in orbit to complete its constellation and spare satellites are kept in-orbit to serve in case of failure. The satellites are in six polar low Earth orbital planes at a height of approximately 485 miles (780 km). Satellites communicate with neighboring satellites via Ka band intersatellite links to relay communications to and from ground stations. The original constellation was launched in the late 1990s before the company went through bankruptcy. In January 2017, Iridium began launch next-generation satellites through its $3 billion launch campaign, Iridium NEXT. The new satellites were sent into space on SpaceX Falcon 9 launch vehicles from Vandenberg AFB Space Launch Complex 4 in California over the course of eight launches between January 2017 and January 2019. On January 14, 2017, SpaceX launched 10 of the new Iridium satellites into orbit. The second launch of Iridium NEXT satellites took place on June 25, 2017 on a SpaceX Falcon 9 rocket out of Vandenberg Air Force Base. This was the second of eight scheduled launches. The third launch of 10 NEXT satellites took place on October 9, 2017. On December 22, 2017, ten additional satellites were deployed after a successful launch on a SpaceX Falcon 9 rocket. On May 22, SpaceX successfully launched an additional five Iridium NEXT satellites from Vandenberg Air Force Base.
On January 11, 2019, the final ten satellites were placed in orbit by SpaceX.
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Iridium offers four satellite handsets: the 9555, 9575A (which is only available to US government customers), the Extreme, and the Extreme PTT.
Other satellite phones
Several other Iridium-based telephones exist, such as payphones, and equipment intended for installation on ships and aircraft. The DPL handset made by NAL Research combined with a 9522 transceiver is used for some of these products. This handset provides a user interface nearly identical to that of the 9505 series phones.
Standalone transceiver units
These can be used for data-logging applications in remote areas. Some types of buoys, such as those used for the tsunami warning system, use Iridium satellites to communicate with their base. The remote device is programmed to call or send short burst data (SBD) messages to the base at specified intervals, or it can be set to accept calls in order for it to offload its collected data.
The following transceivers have been released over the years:
- Iridium Core 9523 – Similar to the 9522B, a modular transceiver released in 2012, designed to be an embedded solution.[buzzword]
- Iridium 9522B – A transceiver released in late 2008, is smaller than the 9522A and has similar features. It also supports Circuit-Switched Data (CSD), not just SBD.
- Iridium 9522A – Based on the 9522, some variants have built in GPS and autonomous reporting functions. Supports SBD.
- Motorola 9522 – Last Motorola transceiver, supports outgoing SMS but no SBD.
- Motorola 9520 – Original transceiver module, does not support outgoing SMS or SBD. Designed for use in vehicles with accompanying handset
Short burst data modems
These devices support only SBD for Internet of things (IoT) services and do not use a SIM card.
- Iridium 9601 – Supports only SBD, several tracking devices and other products have been built around this modem. It was an Iridium manufactured product designed as an OEM module for integration into applications that only use the Iridium Short Burst Data Service. Short Burst Data applications are supported through an RS-232 interface. Examples of these applications include maritime vessel tracking or automatic vehicle tracking.
- Iridium 9602 – Smaller, cheaper version of 9601 (released in 2010).
- Iridium 9603 – One-fourth the volume and half the footprint of 9602
Iridium OpenPort is a broadband satellite voice and data communications system for maritime vessels. The system is used for crew calling and e-mail services on sea vessels such as merchant fleets, government and navy vessels, fishing fleets and personal yachts.
Iridium operates at only 2.2 to 3.8 kbit/s, which requires very aggressive voice compression and decompression algorithms. (By comparison, AMR used in 3G phones requires a minimum of 4.75 kbit/s, G.729 requires 6.4 kbit/s, and iLBC requires 13.33 kbit/s.) Latency for data connections averages 1800 ms round-trip, with a mode of 1300 to 1400 ms and a minimum around 980 ms. Latency is highly variable depending on the path data takes through the satellite constellation as well the need for retransmissions due to errors, which may be around 2 to 3% for mobile originated packets under good conditions.
The one-way paging service is still operational, citation needed][when?]. Messages are delivered to pre-selected "MDAs" which cover a certain geographic area. Three of these MDAs may be selected on a web-based portal or updated automatically if the paging service is bound to an Iridium phone. Each country has its own MDA based on its country code; some of the larger countries are divided into several MDAs, while separate MDAs exist for sections of ocean and common aeronautic routes.[
Air safety communications
In July 2011, the Federal Aviation Administration (FAA) issued a ruling that approves the use of Iridium for Future Air Navigation System (FANS) data links, enabling satellite data links with air-traffic control for aircraft flying in the FANS environment, including areas not served by Inmarsat (above or below 70 degrees latitude) which includes polar routes.
- "Iridium Announces Record 2018 Results; Company Issues 2019 Outlook".
- "Iridium Communications Annual Report 2018".
- Grush, Loren (2019-02-07). "How a new satellite constellation could allow us to track planes all over the globe". The Verge. Retrieved 2019-11-05.
- "Iridium Satellite Phones – The Amazing Worldwide Service". Streetdirectory.com. Retrieved 2016-02-24.
- Miller, Stephen (June 20–21, 2009). "John F. Mitchell 1928–2009: Motorola Executive Helped Spur Cellphone Revolution, Oversaw Ill-fated Iridium Project". Wall Street Journal. p. A10.
- Allen P. Adamson; Martin Sorrell (2007). Brandsimple: how the best brands keep it simple and succeed. Palgrave Macmillan. p. 101. ISBN 978-1-4039-8490-6.
- Jaejoo Lim; Richard Klein; Jason Thatcher (2005). "Good technology, bad management: A case study of the satellite phone industry" (PDF). Journal of Information Technology Management. Association of Management. XVI (2). ISSN 1042-1319.
- David Vernon (February 20, 2007). "A Heavenly Sign – The Iridium satellite story". Retrieved 2007-08-20.
- David Rohde (February 24, 1999). "So how do you order satellite service?". CNN. Retrieved 2007-08-20.
- "Iridium files Chapter 11". Archived from the original on 2010-04-25.
- "Iridium reborn. Globalstar expands – Ocean Navigator – January/February 2003". www.oceannavigator.com. Retrieved 2018-03-31.
- "Flaming end for satellites". BBC. March 18, 2000. Retrieved 2007-08-20.
- "Satellite Phone Company Falls to the Earth". Partners.nytimes.com. 2000-04-11. Retrieved 2016-02-24.
- "In Re Iridium Operating Llc, Iridium Capital Corp., Iridium Ip Llc, Iridium Llc, Iridium Roaming Llc, Iridium (potomac) Llc, and Iridium Promotions, Inc., Debtors.[478 F.3d 453]motorola, Inc., Appellant, v. Official Committee of Unsecured Creditors and Jpmorgan Chase Bank, N.a., Appellees, 478 F.3d 452 (2d Cir. 2007)". Justia Law. Retrieved 2018-03-31.
- Harwood, Bill (2009-02-11). "U.S. And Russian Satellites Collide". CBS News. Retrieved 2009-02-11.
- Borenstein, Seth; Birch, Douglas (February 12, 2009). "2 orbiting satellites collide 500 miles up". Melbourne: AP DIGITAL. Archived from the original on July 11, 2012. Retrieved 2009-02-12.
- "Iridium Satellite Communications – Press Releases". Investor.iridium.com. Retrieved 2019-07-04.
- "Iridium Satellite Communications – Press Releases". Investor.iridium.com. 2010-06-16. Retrieved 2019-07-04.
- "Iridium Satellite Communications – Press Releases". Investor.iridium.com. Retrieved 2019-07-04.
- "Iridium Completes Historic Satellite Launch Campaign – Jan 11, 2019". Investor.iridium.com. Retrieved 2019-07-04.
- "Fifth Successful Iridium® NEXT Launch Completed as Iridium Surpasses 1 Million Subscribers".
- "Iridium Announces Record 2018 Results; Company Issues 2019 Outlook".
- Slabodkin, Gregory (November 9, 1998). "DISA establishes portal for telecom satellite system". Archived from the original on August 3, 2008. Retrieved June 16, 2008.
- "Board of Directors – Iridium Communications Inc". investor.iridium.com. Archived from the original on 2018-01-13. Retrieved 2018-01-12.
- Hudson, Katie. "Hosted Payload Alliance Announced to Promote Use on Commercial Satellites". HostedPayload.com. Archived from the original on 20 March 2012. Retrieved 15 September 2011.
- "SpaceX offers a "great deal"". RLV and Space Transport News. 2010-06-17. Archived from the original on 2011-06-15. Retrieved 2010-06-20.
- Pasztor, Andy, "Aging Iridium Network Waits for Key Satellite Replacements", Wall Street Journal, August 23, 2016. Retrieved 2016-08-23.
- Etherington, Darrell. "SpaceX successfully returns to launch with Iridium-1 NEXT Falcon 9 mission". TechCrunch. Retrieved 2017-01-15.
- Sheetz, Michael (2017-06-25). "SpaceX is 'critical' to Iridium's future, says CEO Matt Desch". CNBC. Archived from the original on 2017-06-26. Retrieved 2017-06-29.
- VWilson (22 May 2018). "Iridium-6/GRACE-FO Mission".
- "SpaceX launches Falcon 9 with final set of 10 Iridium network satellites". www.cbsnews.com. Retrieved 2019-01-14.
- "Phones". Iridium Satellite Communications. Retrieved 2020-01-09.
- "Iridium Satellite Telephones – MJ Sales, Inc". Satphone.net. Retrieved 2016-02-24.
- "WCC Launches First Iridium-Based Global Satellite Pay Phone to Accept Consumer Credit Cards". Marketwired.com. 2006-02-20. Retrieved 2016-02-24.
- "DPL handset user guide" (PDF). Ftp.nalresearch.com. Retrieved 2016-02-24.[dead link]
- "Iridium Satellite Phones For Sale". Outfittersatellite.com. Archived from the original on 2012-04-16. Retrieved 2016-02-24.
- "Iridium 9601-Overview". Archived from the original on December 3, 2013. Retrieved November 19, 2013.
- "Products | Iridium 9602 Transceiver". Iridium. Archived from the original on 2014-08-10. Retrieved 2016-02-24.
- "Iridium 9603-Overview". Archived from the original on February 13, 2013. Retrieved December 21, 2012.
- "Iridium OpenPort Global Service Program in Operation Effective April 1". The Maritime Executive. Archived from the original on 20 March 2012. Retrieved 15 September 2011.
- US Patent application 20030195006
- "Iridium Bandwidth and Internet Download Speeds – Support". MailASail. Retrieved 2016-02-24.
- Margaret M. McMahon; Ph. D. "MEASURING LATENCY IN IRIDIUM SATELLITE CONSTELLATION DATA SERVICES" (PDF). Dodccrp.org. Retrieved 2016-02-24.
- "Iridium Satellite Phones by Outfitter Satellite Phones". Voicemall.com. Archived from the original on 2012-03-07. Retrieved 2016-02-24.
- "FAA Authorizes Iridium Satellite Data Service for Oceanic Airspace". Satellite Today. Retrieved 15 September 2011.
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