Frontier Status Report #159 |
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Frontier Status Report #159July 16, 1999Dale M. Gray Russia and Baikonur dominate space news this week as a ban on rocket launches is liftedin time to provide one last supply mission to Mir. Other news includes a Delta 2 rocketdelivering 4 Globalstar satellites to orbit. The Shuttle Columbia is on the pad awaitinglaunch on July 20. Boeing tests a powerful new rocket engine for the Delta IV.Investigations focus on the cause of the Delta 3 and Titan 4 failures. Boeing awarded X-37contract. Highlights of the week of July 16 include:
SHUTTLE / CHANDRAThe Shuttle Columbia is on pad 39B in its final week of preparation prior to its July20 launch. The simulated countdown test on July 9 for the Inertial Upper Stage wassuccessfully completed. An audio communications component was replaced on Columbia on July12. Ordinance installation was completed on July 15 and aft compartment close-outscompleted on July 16. The crew of STS-93 arrived at the Cape early in the morning on July16. The crew includes Commander Eileen Collins, Pilot Jeff Ashby, Mission SpecialistsSteve Hawley, Catherine Coleman and French astronaut Michel Tognini. Countdown for theChandra X-Ray Observatory deployment mission began at 10:00 am EDT July 16. Payload baydoors will be closed on July 17. The Shuttle is slated for launch on at 12:36 am EDT onJuly 20. The flight will feature the deployment of the long-awaited Chandra Observatory,but will also carry the Southwest Ultraviolet Imaging System. This will be the 26th flightfor Columbia and the 95th flight of the Space Shuttle program (NASA; Space.com). Following the deployment of Chandra by the crew of Columbia, the two IUS solid rocketmotors will push the observatory into a 10,000 x 140,000 km orbit. About 20 days afterlaunch the observatory will open its sunshade door and align on the quasar PKS 0637-752 tofocus and align. The official first light image will be of supernova remnant Cas A. Thetelescope is 20-50 times more powerful than any previous X-ray telescope. With solarpanels deployed the telescope will measure 45.3 feet long and 63 feet wide (Jonathan'sSpace Report). More on Chandra at: NASA article; Chandra home page. Chandra IUSThe upcoming Chandra X-ray Observatory contains the same two-stage Inertial Upper Stageas that which failed during the April 9 launch of a Department of Defense missile warningsatellite on a Titan 4 rocket. The use of the IUS has been cleared and the previousfailure has been linked to human error. Early on investigators revealed that the twostages of the Inertial Upper Stage rocket booster failed to completely separate when anelectrical connector failed to disengage. Recently investigators reported the rocketappears to have been launched with the "remove before flight" tape remaining onthe connector. The tape prevented a proper disconnect. The upper IUS could not performwithin desired parameters with the lower IUS still attached. An understanding of theproblem with the Titan 4 launch was critical to the July 20 launch of the Shuttle Columbiacarrying the Chandra X-ray observatory (AW&ST; Florida Today; Space Views). ISSDespite three hail-storm related power outages at the Russian control center, theorbiting elements of the International Space Station continue to be monitored. Controllersare investigating problems with battery cycling and have resumed the cycling of batteries1 and 2. The cycling was initially planned for only battery 2, but battery 1 also began tocycle when the activity began Controllers determined that while this was not planned, itcould continue safely. Investigations are also being conducted on the loss of function ofthe left side antenna of the back-up Early Communications System. Managers are assessingthe situation and may replace the antenna during a spacewalk during the December Shuttlevisit. The station is in a 256 x 238 statute mile orbit with a period of 92 minutes. Thestation has completed (July 15) 3,702 orbits since launch in November (NASA). The Space Infrastructure Business Unit of DaimlerChrysler Aerospace AG (Dasa, Munich)and Aerospatiale Matra Lanceurs of France have signed a DM 163 million contract for theautomated transfer vehicle (ATV) that will be used in conjunction with the InternationalSpace Station. The first ATV mission is scheduled for June 2003 when it will be launchedby an Ariane 5 rocket and will use its own propulsion system to reach the Space Station.It will then automatically dock with the Russian node where it will remain attached for upto six months. Functioning in a manner similar to the Russian Progress supply system, theATV will deliver up to seven tons of materials and supplies to the station (the Progressis capable of delivering 2.5 tons). After it is emptied the craft will be used to collectwaste and outdated equipment. When filled with station trash, the ATV will be ordered intoa controlled incineration during reentry. Like the Progress, the ATV will also be capableof reboosting the ISS which will lose up to 50 km of orbital altitude per six months(SpaceDaily). MIROn Monday, July 12, the crew of the Mir space station discovered the source of an airleak. The problem appears to be in a "module that holds the exit hatch". A smalldrop in air pressure was noted last week. The cosmonauts have had to search for the leakaround activities in their busy work schedule. While the leak poses no immediate hazard,Russian officials have added extra oxygen to the manifest of the Progress due to launch onFriday (AP; Houston Chronicle). The Progress supply vessel launched July 16 will be bringing the usual staples of food,water and fuel. It will also carry a new computer that will be used to control the stationremotely from the ground. The computer will have to be connected and operational prior tothe crew abandoning the station on August 21. For the first time since 1989, the Mirstation will be unoccupied. Since there are no other Soyuz in production other than oneearmarked for the first crew of the International Space Station, it is unlikely that thestation will be reoccupied before commands are given to deorbit the 130 ton complex. Hadthe Progress not launched by July 20, the crew would have had to abandon the station --leaving the Russian Space Agency with no way to control the reentry of the station.Officials estimate that it will take about a month to install the new computer (AP;Reuters). PROGRESSFollowing resolution of several technical, political and environmental issues, theKazakstan government permitted the launching of a Progress supply rocket from Baikonur.The launch was originally slated for July 14, but the ban on launches caused it to bemoved to July 16. The rocket was launched at 8:37 Moscow time. It is expected to dock withMir around 2 pm EDT (Florida Today; AP). BAIKONURThe former Soviet launch site of Baikonur which is located in present-day Kazakstan hasagreed to reopen this week following last week's ban on all launches. The cause of the banwas the July 6 failure of a Proton-K rocket and the subsequent rain of debris onKazakstan. The closure issue revolved around the physical hazard of several very largerocket fragments landing near human habitation, the potential for pollution from the toxic"giptil" rocket fuel and $300 million in back rent owed by the Russians for theuse of the Cosmodrome in Baikonur. On the other side of the issue, the Russians arguedthat a critical Progress supply flight was necessary for the final disposition of the Mirspace station; the Ukrainians have a Zenit-2 rocket ready to launch the Okean-0 oceanresearch satellite; and the Americans and other ISS contributors are concerned about theeffects of the closure on the launch of the Service Module in November on a Proton rocket. Russia has instituted investigations into the cause of the Proton failure and has teamsassessing the pollution issue. More importantly, Russia has agreed to pay $115 million inback rent -- $50 million in cash and $65 in goods. Russia has also agreed to compensatethe lady who had a 440 pound chunk of rocket land in her garden. Farmers in the village ofKarbyshevka where an 80 ton section of rocket landed are complaining that no one will buymilk or meat from their farms because of fear of contamination from rocket fuel. On July 14, Kazakstan lifted the ban on all launches clearing the way for the Fridayevening launch of the Progress supply rocket. The Ukrainian Zenit launch was also cleared,but has not yet been rescheduled. The Proton is still banned from launch pending theresults of investigations. The next scheduled Proton launch on July 23 is expected to bedelayed (AP). PROTON INVESTIGATIONA Russian State Commission has been formed to investigate the July 6 failure of aProton-K rocket launched from Baikonur Cosmodrome. The commission will be headed byGeneral Colonel Vladimir Nikitin, First Deputy to the Commander in Chief of the RussianStrategic Rocket Forces. A preliminary report is due on July 19. The events leading to thefailure of the second stage are currently defined as: Nominal flight for 277 seconds; at277 seconds Engine #3 on the second stage began indicating a significant temperatureincrease in the combustion chamber; this lead to melting of propellant lines and thealuminum alloy fuel tank; fuel pouring out of the tank created an "explosiveevent". The third stage, Briz-M and satellite continued flight intact until at 325seconds aerodynamic forces began to break them up; at this point the fuel tank of theBriz-M began to break up -- releasing fuel that has become a pollution concern. Debrisfell in a track 80 - 90 km long and 8 - 10 km wide. All debris has been recovered. Theengine that failed was one of four second stage KB Khivavtomatiki RD-0210 engines, burningunsymmetrical dimethyl hydrazine (UDMH) and nitrogen tetroxide (ILS PR; Jonathan's SpaceReport). Press reports that the Proton was carrying a Raduga-1 (Globus) satellite wereincorrect. The rocket was actually carrying the Raduga (Gran') satellite which is adifferent series (Jonathan's Space Report). DELTA 2 / GLOBALSTARAfter two delays due to unfavorable winds aloft, a Delta 2 rocket (7420-10) carryingfour Globalstar satellites was successfully launched from Cape Canaveral Air Station at4:45 am EDT, July 10. By 74 minutes after launch, the satellites had been deployed inpairs in a 1370 km orbit. The satellites deployed their solar arrays were acquired by theGlobalstar ground control center at San Jose using telemetry received by Globalstarcommand unit gateways around the world. Following on-orbit testing, over the next twoweeks the satellites will be raised to their operational orbit of 1,414 km. This bringsthe total number of Globalstar satellites in orbit to 28. Thirty-two satellites are neededfor the inauguration of global telephone services in September. By the end of the year, 48satellites are expected to be in orbit to provide expanded services and redundancy. Thiswas the second of four Delta 2 launches carrying Globalstar satellites within only 90 days(Florida Today; Business Wire). X-37Boeing and NASA signed a $173 million agreement for the cooperative development of theX-37 experimental space plane. The spaceplane, formerly known as Future-X Pathfinder, willbe ferried to orbit by the Space Shuttle or by expendable rockets. Once in orbit, thecraft is capable of up to 21 days of orbital operation before reentry and horizontallanding. The unpiloted craft will be capable of Mach 25 and will be used as a test bed for41 new reusable launch vehicle technologies. The vehicle will be 27.5 feet long and have a15 foot wingspan. It will feature an advanced thermal protection system, storablenon-toxic propellant and a seven foot long experiment bay. In shape it will be a 120percent- scale derivative of Boeing's X-40A which has already begun a drop test program.The first drop test from a B-52 is planned for the fall of 2001 and two orbital tests areslated for 2002. Boeing and NASA will share in the cost of the program 50/50 (Boeing PR). ATLAS / GEOS-LThe launch of an Atlas 2 rocket carrying the GEOS-L satellite has been put onindefinite hold so that the Centaur upper stage can be replaced. The change-out is theresult of the on-going investigation into the cause of the May 4 failure of the InertialUpper Stage used in the second Delta 3 launch. The Delta 3 and the Atlas/Centaur featurevariations of the Pratt & Whitney RL-10 rocket engine. Investigation into the failureof the RL-10 Inertial Upper Stage used in the Delta 3 launch has turned up a change in theprocess that produced the combustion chamber. Investigators currently believe that shortlyafter the beginning of a second scheduled burn a seam failed along one of the four jointsin the reinforcement structure of the combustion chamber. This then caused a rupture ofthe chamber -- leaving the Orion communications satellite in a useless orbit. While thisfinding clears the way for launches using Pratt and Whitney RL10s manufactured before thenew process, it creates doubts for the planned Atlas launch of the GOES-L satellite whichfeatures a Centaur upper stage which uses the RL-10 engine. Factory records indicate thatthis engine used the suspect process and could be flawed. GEOS-L is currently in anAstrotech processing facility being refurbished due to the delays encountered. While itwas hoped to launch the satellite before this year's hurricane season, is unlikely to belaunched prior to October 14 even if the Centaur engine is cleared because of periodicorbital eclipses (up to 72 minutes per day) could interfere with the deployment of thesolar panels (Florida Today). Another Atlas Centaur rocket that is to launch the Terra Earth observing satellite hasalso been examined. It contained an RL-10 engine produced prior to the introduction of thesuspect manufacturing process. The rocket is expected to be launched from Vandenberg AFBon September 13 (Florida Today). AUSTRALIAA Brisbane-based company has announced a new spaceport venture in Queensland. TheUnited Launch Systems International Pty Ltd (ULSI), proposes to build a facility onHummock Hill Island near Gladstone to launch Low Earth Orbit (LEO) satellites usingRussian rocket technology. While the company states that it will be utilizing the Unityrocket which is based on 21st century technology, examination of the specific engines showthe rocket to be using a sea-level derivative of the RD 120 with a RD-0136 second stage.The rocket will be capable of placing 5,000 kg payloads into LEO. An estimated $350million is required for the project with about one third in hand. ULSI is 90 percent ownedby a Bermuda-based corporation named International Space Development Ltd. which in turn ismajority owned by Thai Satellite Telecommunications of Bangkok. The venture lists theIridium II and Teledesic satellite constellations as potential clients. The first launchcould occur as early as 2002 (Australian Space Frontier News). EXPLORATIONMessengerGenCorp Aerojet will be designing and building the propulsion system for NASA'sDiscovery Messenger (MErcury: Surface, Space ENvironment, GEochemistry and Ranging)program. Under a $12.3 million contract, GenCorp will produce a set of one and five poundhydrazine thrusters and a 150 pound bipropellant main engine. The Messenger spacecraftwill be launched in the spring of 2004, swinging twice by Venus and twice by Mercurybefore settling into orbit around Mercury in September 2009 (SpaceDaily). BUSINESSBoeingIn a turn of fortune, Boeing's second quarter profits surged upward to 56 cents pershare. The profit easily outpaced the forecast of 48 cents per share. Boeing had netearnings of $701 million for the quarter compared to only $258 million for the same periodlast year. One of the main contributors for the turn around was the Commercial Airplanesdivision which had an operating income of $435 million for the quarter as compared to a$178 million loss last year. The company is projecting gross revenues of $58 billion for1999 (AP). Atlas 5Lockheed Martin announced on July 13, that they had completed their first commercialsale of Atlas 5 launch services. Through International Launch Services (ILS) LockheedMartin has contracted to provide three Atlas launches for Teledesic LLC. The contract alsoincludes three launches on ILS Proton-M rockets. Each launch vehicle will carry multipleTeledesic satellites. The contract also contains options for five additional launches ofboth systems (ILS PR). TeledesicIn addition to a launch agreement with International Launch Services, Teledesic LLC hasannounced a system agreement with Motorola, the company's prime contractor. The agreementcomes after over a year of close collaboration and detailed design work. The contract iscontingent upon the results of the final technical review period which is expected to becompleted in the next three months. The system agreement moves Teledesic to the next phase-- that of actual development of the system. In an exchange of funds, Motorola hascompleted a $150 million cash payment to Teledesic as part of its investment in thecompany. Teledesic in turn has paid Motorola $250 million in a down payment for work asprime contractor. Teledesic is currently funded to the $1.5 billion level primarilythrough its founders Craig McCaw and Bill Gates with contributions from Saudi PrinceAlwaleed Bin Talal and Boeing. The system of 288 satellites (some reports indicate thisnumber may be reduced to as few as 120 satellites) is expected to come on line in 2004with a total cost of $9 billion (Teledesic PR; Business Wire; Reuters; Space Views). IridiumMotorola, which owns an 18 percent share of Iridium, warned other investors that itwould no longer invest in Iridium to stave of bankruptcy without the help of other majorinvestors such as Lockheed Martin, Raytheon, Sprint and American International Group.Iridium stock, as a result of this declaration tumbled 18 percent to $6.75 on the NASDAQStock Market. Motorola revealed that it had taken a $126 million second quarter charge toprofits to write down the value on Iridium bonds that have lost much of their value.Iridium's fiscal exposure is reported at $2.2 billion -- roughly half the amount investedin the 66 satellite global communications system (AP). Iridium recently reported that Iridium de Mexico received a license from the MexicanSecretariat of Communications and Transportation to provide satellite telephone services.Mexico has been one of the last nations to approve Iridium's satellite phone service(Space News). Sea LaunchThe first commercial launch using the innovative Sea Launch system appears to beheading for a delay. Because of Department of State restrictions on the sharing ifsatellite technology, insurers for the DirecTV satellite slated for launch have beenunable to gain the information they need. Without this information, the non- US insuranceunderwriters are refusing to cover the launch (Space News). SATELLITESJapanIn an attempt to jump-start the Japanese satellite manufacturing industry, the JapaneseMinistry of International Trade and Industry is soliciting bids for new low-costexperimental satellites. The two Space Environment Reliability Verification IntegratedSystem (SERVIS) satellites will be built for a maximum price of 23 billion yen ($188million US). The program is run by the ministry's Institute for Unmanned Space Free Flyer(Space News). ArianespaceIn an attempt to get rockets flying again from Kourou, Arianespace has decided to placetwo satellites on individual Ariane 4 rockets instead of waiting for partner satellites tofly on the larger Ariane 5. Telkom-1 will be launched on an Ariane 42P on August 4 andKoreasat 3 will be launched on another Ariane 42P on August 26. Arianespace, which hasbeen hampered by satellite delivery problems, expects to pick up the pace of satellitelaunches in the second half of 1999. Arianespace expects to launch an Ariane 5 later thisyear (SpaceNews; Arianespace PR). DIRECT TO HOME BROADCAST FRONTIERDirect-to-home TVThe total number of homes receiving direct-to-home TV topped the 10 million mark thispast month. DirecTV announced that they had acquired 117,000 new customers in Junebringing their total to 7.4 million. EchoStar's Dish Network announced they had acquiredover 105,000 new customers which brings their total number of subscribers to 2.6 million.Both companies' new customer numbers are about 50 percent higher than last year. Yearlysales are usually higher in the second half due to the football and holiday seasons(Business Wire; MSN). DirecTVDirecTV recently signed an agreement with SBC communications to help SBC with itsefforts to compete with AT&T as a single package phone, television and Internetprovider. AT&T this past year has made over $100 billion in cable purchases --including TCI and MediaOne (MCN; Business Wire; AP). GPS FRONTIERChicago RailThe Chicago Metra Commuter Rail System has awarded an $800,000 contract to GeoFocus, asubsidiary of Williams Controls, to install a train tracking and information system. TheChicago System operates 546 miles of track to serve 14 million passenger trips per year.Utilizing the TrainTrac system on two of its 11 major train routes, the System hopes toutilize GPS data to improve scheduling capabilities and to provide information to railpassengers. TrainTrac has previously been installed in Tri- County Commuter Rail authorityin southern Florida (SpaceDaily). LEGISLATIONWhite HouseOn July 14, President Clinton approved four additional launches of US satellites onRussian launch vehicles. The president agreed to increase the launch quota because it feltthat Russia had improved its export controls on sophisticated weapons technology. Russianlaunches typically cost between $65 and $75 million which is substantially less thanAmerican rocket launches. Commercial satellite launches have become a major source offunding for the Russian space program. Russia currently has permission for 16 launches,but each of the new launches must be approved on a case-by-case basis. The US producestwo-thirds of the satellites launched each year -- far outstripping America's launchcapability (Reuters). TECHNOLOGYRS-68Boeing's new high-powered rocket engine, the RS- 68 was recently tested for the firsttime at 100 percent of power on test-stand 1A at the Air Force Research Laboratory atEdwards AFB. The engine, which will be used in the Delta IV now under development,exceeded 650,000 pounds of thrust. While Boeing touts the milestone as the greatest thrustever achieved by a single oxygen/hydrogen engine, it is still less than half the thrust ofthe F-1 engine used in the Saturn V which has LOX/RP-1 as fuel. In its finalconfiguration, the five F-1 engines on the Saturn V produced over 7.7 million pounds ofthrust or 1,545,000 pounds of thrust per engine. The RS-68 does, however, produce about 30percent more thrust than a single Space Shuttle Main Engine. The RS-68 test was the firstto achieve 100 percent of thrust -- beginning and ending at full thrust. The engine iscapable of being throttled down to 60 percent of power. The engine being tested has over300 seconds of accumulated hot fire. The next goal of Boeing's Rocketdyne Propulsion &Power division is to conduct long duration tests. The RS-68 development features advancedmanagement techniques that have substantially reduced development costs and cycle time.The resulting engine is both environmentally friendly -- producing only steam and containsfar fewer parts than the comparable Space Shuttle Main Engine. When used in the threeengine heavy lift configuration of the Delta IV, the engine is expected to be able toplace over 29,000 pounds into geosynchronous transfer orbit (Boeing Press RL; Mark Wade'sEncyclopedia Astronautica; The Illustrated Encyclopedia of Space Technology; Delta IV webpage). TechStarThe TechStar Applied Solar Division (ASD) set a record 27 percent efficiency for triplejunction solar cell cells. The record was reached using an improved Cascade multijunctionsolar cell technology. The company is currently achieving lot averages between 23 and 24percent efficiency. To date, 120,000 Cascade solar cells have been produced by the companythat have been used in a variety of space-based applications including GPS, Globalstar,Iridium, Orbcomm and Mars Pathfinder (SpaceDaily). Liquid Apogee EngineTRW engineers recently completed 25,000 seconds of hot testing of the TR312, anadvanced liquid apogee (LAE) engine. The testing demonstrated the new engine has aspecific impulse of 325 seconds -- five to ten seconds above currently available enginesin the same class. The new engines will allow satellite designers to reduce propellantmass which translates into increased life expectancy for satellites, increased massavailable for satellite systems or lower total launch mass. The technological improvementfeatures an iridium-coated rhenium thrust chamber which can withstand the extremetemperatures need for the improved efficiency. The hot testing of the new engine occurredin a vacuum chamber at the TRW Capistrano Test Site using a combination ofmonomethylhydrazine and nitrogen tetroxide. Qualification of the new thruster is expectedto be completed in early 2000 (TRW PR). IN MEMORYGeorge BrownRepresentative George E. Brown Jr. (D- California) died on July 16 as a result of along illness. At 79, Brown was the oldest member of the House -- serving his 18th term. Asthe current ranking Democrat and former Chairman on the House Science Committee and itsSpace subcommittee, he used his position to support both manned and unmanned explorationof space. He was the "tireless champion of innovative space projects like space solarpower, bold scientific exploration, and reusable launch vehicles". Brown had a heartvalve replacement surgery on May 3 --recovering well and returning to work. In mid-June hewas readmitted to the hospital for a post-operative infection from which he did notrecover (James Muncy; AP). COMING EVENTSCourtesy J. Ray and SpaceViews
FRONTIER CENSUS REPORTThe space population is at its base-line of 3. The Mir station contains one Frenchcosmonaut and two Russians. This marks the completion of 3592 days of continuous humanhabitation in space since the reoccupation of Mir on September 8, 1989. The first elementof the International Space Station has been in orbit for 239 days. The occupation of theInternational Space Station is expected to begin in March of 2000. Index for Frontier Status Report 1999
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