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Цитировать Tory Bruno Подлинная учетная запись @torybruno 3 ч. назадEverything continues on track for next week's final launch of the Delta IV Medium. #GPS
ЦитироватьAug 15 17:00T-minus 1 week and counting!LAUNCH ALERT! The Delta IV rocket will be taking the advanced GPS III Magellan satellite into space for the U.S. Air Force Space and Missile Systems Center next Thursday, Aug. 22 from Cape Canaveral, Florida.GPS is the world's best-known satellite constellation, providing precision navigation and timing services to the U.S. military and four billion civilian users around the world.The 27-minute launch window opens at 9 a.m. EDT (1300 UTC).Watch our mission blog and live webcast on this page!And see our Mission Overview for more details on the Delta IV Medium rocket, Magellan satellite and the launch sequence here.
ЦитироватьFAJOA3278/19 - (4156S 01318E, 4027S 01418E, 4812S 02648E, 4938S 02554E):ROCKET RE-ENTRY OPS TAKING PLACE.SFC - UNL, DLY 1959-2036, 22 AUG 19:59 2019 UNTIL 23 AUG 20:36 2019.CREATED: 14 AUG 00:23 2019
ЦитироватьAug 19 16:43Weather is 70% GOThe 45th Weather Squadron at Cape Canaveral Air Force Station expects generally favorable conditions to launch the Delta IV Medium rocket on Thursday morning, forecasting a 70 percent chance of allowable liftoff weather."For the Mobile Service Tower (MST) roll Wednesday night, lingering convection over the interior will diminish in the evening with mostly favorable conditions expected overnight," the launch weather team reported today in the forecast synopsis."Sufficient moisture and light steering flow should trigger isolated showers and storms over the Atlantic waters early Thursday morning. While light winds will keep most of this activity offshore, a shower approaching the coast and/or flight path cannot be ruled out, thus the primary concerns during the launch window are the Cumulus Cloud Rule and Flight Through Precipitation." The forecast for the launch window includes scattered low- and mid-level clouds, isolated showers to the east, south-southeasterly winds at 8 knots and a temperature near 84 degrees F.In the event of a delay to Friday morning, similar conditions are forecast with a 70 percent chance of "go" weather.
ЦитироватьULA's second launch of the month scheduled for ThursdayAugust 19, 2019 | Stephen ClarkThe payload fairing for this week's Delta 4 launch is stacked on top of the launch vehicle on pad 37B at Cape Canaveral Air Force Station, Florida. Credit: United Launch AllianceWeather forecasters expect a 70 percent chance of favorable conditions at Cape Canaveral for liftoff of a United Launch Alliance Delta 4 rocket Thursday with a GPS navigation satellite, marking the last flight of the Delta 4's single-core variant after 29 flights since 2002.The mission's 27-minute launch window opens at 9 a.m. EDT (1300 GMT) Thursday. The Delta 4 rocket will take off fr om Cape Canaveral's Complex 37 launch pad and head northeast with the second of a new generation of GPS navigation satellites for the U.S. Air Force.The launch scheduled for Thursday comes two weeks after ULA's most recent flight from Cape Canaveral, which used an Atlas 5 rocket to deliver an Air Force communications satellite into orbit.An early weather outlook issued by the Air Force's 45th Weather Squadron on Monday predicts a 70 percent chance of acceptable conditions for launch Thursday.Forecasters expect a typical summertime weather pattern over Central Florida this week, with scattered thunderstorms driven by the afternoon sea breeze. The mobile service tower, which protects the Delta 4 at pad 37, will be retracted Wednesday night in preparation for fueling of the launcher with super-cold liquid hydrogen and liquid oxygen propellants."Sufficient moisture and light steering flow should trigger isolated showers and storms over the Atlantic waters early Thursday morning," forecasters wrote. "While light winds will keep most of this activity offshore, a shower approaching the coast and/or flight path cannot be ruled out."The primary weather concerns during Thursday's launch window are with the possibility of violating the cumulus cloud and flight through precipitation rules, according to the forecast issued Monday.During Thursday's launch window, forecasters predict isolated rain showers offshore, partly cloudy skies, south-southeast winds of 8 knots, and a temperature of 83 to 85 degrees Fahrenheit.Final pre-launch milestones planned this week include a launch readiness review scheduled for Tuesday. Workers at pad 37 will complete final closeouts on the rocket Wednesday before moving the mobile gantry to reveal the Delta 4 ahead of fueling.The 207-foot-tall (63-meter) Delta 4 rocket will climb away from pad 37 with 1.1 million pounds of thrust from a hydrogen-fueled Aerojet Rocketdyne RS-68 main engine and two strap-on solid rocket boosters built by Northrop Grumman Innovation Systems.Heading toward the northeast, the Delta 4 will surpass the speed of sound in less than a minute and jettison its twin solid rocket boosters at T+plus 1 minute, 40 seconds.The RS-68 core stage engine will shut down at T+plus 3 minutes, 55 seconds, followed by stage separation roughly seven seconds later. An RL10 engine on the Delta's upper stage, also built by Aerojet Rocketdyne, will ignite for the first of two firings required to place the GPS satellite into an elliptical transfer orbit.The Delta 4's payload fairing will jettison in a clamshell-like fashion at T+plus 4 minutes, 26 seconds, once the rocket soars into the rarefied upper atmosphere. The shroud protects the GPS payload during launch preparations and the ascent through the lower layers of the atmosphere.The RL10 upper stage engine will switch off at T+plus 13 minutes, 33 seconds to reach a preliminary orbit. Restart of the RL10 engine is planned nearly 67 minutes after liftoff for a three-and-a-half-minute burn to inject the GPS spacecraft into an egg-shaped transfer orbit ranging between 745 miles (1,200 kilometers) and 12,542 miles (20,185 kilometers) above Earth, with its orbital plane tilted 55 degrees to the equator.The Lockheed Martin-built GPS satellite will separate from the Delta 4 launcher at T+plus 1 hour, 55 minutes.The GPS 3 SV02 navigation satellite, nicknamed "Magellan," will use its own engine to circularize its orbit and join the GPS constellation some 12,550 miles above the planet, wh ere ground teams will test the new spacecraft and put it into service to replace an aging member of the constellation.The GPS network provides positioning and timing services worldwide for military and civilian users, beaming signals relied upon by airliners, ATMs, drivers and smart bombs, among numerous other users.The satellite set for launch Thursday is the second in a new generation of GPS satellites, providing more accurate navigation signals and boasting longer design lifetimes. The new satellites are also compatible with other space-based navigation networks operated by Europe, Japan and China.The first off the new series of GPS spacecraft launched in December aboard a SpaceX Falcon 9 rocket.File photo of a Delta 4-Medium rocket on the launch pad before a previous mission. Credit: United Launch AllianceThe Delta 4 launch Thursday will be be the final flight of the Delta 4-Medium rocket variant, which flies with a single first stage booster, with additional thrust provided by strap-on solid rocket boosters.The Delta 4-Heavy rocket configuration, made by combining three Delta 4 rocket cores together, will continue flying into the 2020s. The National Reconnaissance Office, using the Air Force as a contracting agent, has contracts in place for at least five more Delta 4-Heavy missions through 2024.ULA decided in 2014 to retire the Delta 4-Medium configuration because it is more expensive than the company's Atlas 5 rocket. The two rocket families are also largely redundant, but ULA kept the Atlas and Delta lines flying to ensure the Air Force had two rocket options to get military payloads into space.There is no heavy-lift variant of the Atlas 5 rocket, so the Delta 4-Heavy will continue to fly into the 2020s, until ULA's next-generation Vulcan launcher is operational.The retirement of the Delta 4-Medium rocket also marks the last flight of the Delta 4's 4-meter-diameter (13.1-foot) payload fairing. The Delta 4-Heavy rockets set for launch over the next five years all use a larger 5-meter (16.4-foot) payload shroud.SpaceX's Falcon 9 and Falcon Heavy rocket are now certified to fly the military's national security satellites, providing the Air Force with a second family of launch vehicles alongside the Atlas 5 and Delta 4-Heavy.
ЦитироватьAug 20 16:31Launch Readiness Review completedLaunch managers have approved entering the countdown for liftoff Thursday of the United Launch Alliance Delta IV rocket carrying the second Global Positioning System III (GPS III SV02) spacecraft for the Air Force Space and Missile Systems Center. The Launch Readiness Review, chaired by Paul Aragon, ULA's launch director for this mission, was completed this morning at the Delta Operations Center. Leaders from ULA and the Air Force assessed all aspects pf mission readiness, discussed the status of pre-flight processing work, heard technical overviews of the countdown and flight, and previewed the weather forecast.At the conclusion of the meeting, the managers were polled, gave a unanimous "ready" for launch and then signed the Launch Readiness Certificate.Thursday's launch is scheduled for 9:00:30 a.m. EDT (1300:30 UTC) from Space Launch Complex-37 at Cape Canaveral Air Force Station, Florida. The available window extends to 9:27 a.m., a duration of 26 minutes and 30 seconds.Launch opportunities will be available at the top and bottom of every minute during the launch window, giving us a total of 54 shots for launching throughout the window.The official launch weather forecast, according to the 45th Weather Squadron, has improved to an 80 percent chance of favorable conditions for the liftoff, with scattered clouds, southeasterly winds at 8 peaking to 12 knots and a temperature near 84 degrees F. The only concern will be showers offshore drifting too close to the launch area, causing a launch weather rule violation for cumulus clouds or flight through precipitation.United Launch Alliance will provide complete live coverage of the night owl countdown in this blog starting Wednesday night at 11:45 p.m. EDT (0345 UTC). Our Live Launch Updates Blog brings you official and timely information during the Delta IV rocket's countdown with automatically-refreshing updates.The live launch webcast begins on this page Thursday at L-20 minutes, or 8:40 a.m. EDT (1240 UTC).
ЦитироватьDelta IV GPS III Magellan Mission Profile United Launch AllianceОпубликовано: 20 авг. 2019 г.
ЦитироватьUnited Launch Alliance Set to Launch GPS III Satellite for U.S. Air ForceCape Canaveral Air Force Station, Fla., (Aug. 20, 2019) – A United Launch Alliance (ULA) Delta IV rocket is in final preparations to launch the second Global Positioning System III (GPS III) satellite, nicknamed Magellan, for the U.S. Air Force Space and Missile Systems Center. The launch is planned for Aug. 22 at Space Launch Complex-37 from Cape Canaveral Air Force Station. The Delta IV family of launch vehicles combines design simplicity, manufacturing efficiency and streamlined mission and vehicle integration to meet customer launch requirements. GPS III SV02 will be the 29th and final flight of the Delta IV Medium rocket and the 73rd GPS launch by a ULA or heritage vehicle."As we prepare to launch the final Delta IV Medium, we look forward to continuing its legacy through the purpose-built Vulcan Centaur," said Gary Wentz, ULA vice president of Government and Commercial Programs. "We are proud to continue our strong support of the GPS program with this launch."The GPS III system, built by Lockheed Martin, represents the next step in modernization of the worldwide navigation network with a new generation of advanced satellites offering improved accuracy, better anti-jam resiliency and a new signal for civil users. This mission will launch aboard a Delta IV Medium+ (4,2) configuration vehicle, which includes a 4-meter Payload Fairing and stands at 207 ft. The common booster core for Delta IV is powered by the RS-68A engine, and the Delta Cryogenic Second Stage is powered by the RL10B-2 engine, both supplied by Aerojet Rocketdyne. Northrop Grumman provided the two solid rocket motors. ULA has a track record of 100% mission success with 134 successful launches.With more than a century of combined heritage, ULA is the world's most experienced and reliable launch service provider. ULA has successfully delivered more than 130 satellites to orbit that provide Earth observation capabilities, enable global communications, unlock the mysteries of our solar system, and support life-saving technology.
ЦитироватьGPS III SV 2 ready to launch aboard Delta IV from CCAFSSMC Public Affairs / Published August 20, 2019CAPE CANAVERAL AIR FORCE STATION, Fla. --The Air Force's newest Global Positioning System (GPS) III satellite, Space Vehicle 02 (SV02) is ready for launch from Cape Canaveral Air Force Station's Space Launch Complex 37The Lockheed Martin GPS III SV02 is set to launch Aug. 22 aboard an United Launch Alliance (ULA) Delta IV rocket. The launch window opens at 9 a.m. EDT and will remain open for 27 minutes. A live-feed will begin 20 minutes prior to the launch, concluding approximately 14 minutes after launch at the main engine cut off. A simulcast of the broadcast can be viewed at https://www.ulalaunch.com/missions.The USAF Space and Missile Systems Center (SMC), home to the vanguard of satellite acquisition professionals, and the nation's launch procurer of choice, was responsible for GPS III SV02's rigorous Mission Assurance certifications and testing leading to full launch- and mission-readiness. SMC also conducted a rigorous source selection to ensure the ULA Delta IV rocket met all mission requirements, which included examining every single piece of hardware that built the rocket. This due diligence enables the satellite to be reliably placed on orbit to meet civilian and Warfighter communications needs."As we seek to modernize GPS, we bid farewell and thank you to a launch vehicle with an excellent track record in the Delta IV (4,2). We look forward to this final, successful launch for this ULA mainstay," said Lt. Gen. John F. Thompson, Space and Missile Systems Center commander and Air Force program executive officer for Space. "The GPS program is a prime example of SMC 2.0 as we continue to modernize our fleet at EPIC Speed."GPS III SV02, also known as "Magellan," in honor of Ferdinand Magellan, the Portuguese explorer who led the first expedition to circumnavigate the Earth, will be launched to augment the current GPS constellation comprised of 31 operational spacecraft. GPS satellites operate in Medium Earth Orbit at an altitude of approximately 20,200 km (12,550 miles) in six planes. Each satellite circles Earth twice per day.GPS is the "Gold Standard" of positioning, navigation and timing services for more than four billion users worldwide. This latest generation of GPS satellite boasts a 15-year design life, 25 percent longer than the most recent GPS IIF satellites on orbit. It brings new capabilities to users such as a fourth civil signal, the new L1C civilian signal, which opens the window for future interoperability with international satellite navigation systems."Within the Production Corps we believe 'Winning is an attitude.' The road to this second launch is a prime example of how the team transforms belief into action," said Col. Edward Byrne, Medium Earth Orbit (MEO) Spacecraft Production Division chief. "Through this extremely collaborative effort, we're on the verge of launching our second satellite in just seven months, with a third launch on the horizon. We continue to strive towards our goal of maintaining the 'Gold Standard' of PNT."GPS III satellite signals are more accurate and more powerful than in previous generations, providing improved performance for civilian and military users. Magellan will add another M-Code-capable satellite as the team continues to modernize the GPS fleet. M-Code will provide more accurate military signals with improved anti-jamming capabilities for the Warfighter. Full M-Code capability is set to roll out with OCX (the GPS ground segment) Block 2."We are in final preparations to launch Magellan thanks to an amazing amount of hard work and dedication from the entire government and industry team," said Col. Robert Bongiovi, Launch Enterprise director. This final voyage for the Delta IV Medium launch vehicle will be a momentous occasion capping a legacy of success that started 17 years ago."SMC's Production Corps, located at Los Angeles Air Force Base in El Segundo, California, leads the Magellan team. SMC's Launch Enterprise leads the launch, which will be on ULA's Delta IV (4,2) rocket at Cape Canaveral Air Force Station. Lockheed Martin Space Systems Corporation is the prime satellite contractor. Air Force Space Command's 50th Space Wing and 2nd Space Operations Squadron operate the GPS constellation.
Цитировать Chris G - NSF @ChrisG_NSF 4 мин. назадGood morning, gorgeous! #DeltaIV #GPSIII #ULA
ЦитироватьAug 21 16:37Weather still 80% GOAir Force Launch Weather Officer Will Ulrich continues to forecast an 80 percent chance of favorable conditions for liftoff Thursday at 9 a.m. EDT (1300 UTC)."Given the unusually dry air in place, little more than an isolated shower is expected over the adjacent Atlantic waters overnight and early Thursday morning. Therefore, the primary concern during the launch window is the Cumulus Cloud Rule," today's L-1 forecast says.The launch time outlook includes scattered clouds, good visibility, easterly winds of 8 to 12 knots, and a temperature around 84 degrees F.