Starlink V1.0 L11 was set to be the 100th mission launched by SpaceX, thereby marking a major milestone in the company\u2019s history since its conception in May 2002 and the debut flight of the Falcon 1 \u2013 the first rocket to be built by SpaceX \u2013 in March 2006.<\/p>\n
That milestone, however, went to the SAOCOM 1B mission that jumped ahead of the queue.<\/p>\n
Since March 2006, SpaceX has enjoyed a 95% launch success rate over the 99 flights they\u2019ve conducted to date using their indigenously-developed Falcon 1, Falcon 9, and Falcon Heavy launchers. SpaceX hopes to carry that trend of success into the future with their next-generation Starship\/Super Heavy launch system, which will help the company achieve its main aim of colonizing Mars and making humans a multiplanetary species.<\/p>\n
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Falcon 9 booster B1060 launches the third GPS Block III satellite to orbit \u2013 credit: Julia Bergeron for NSF<\/p>\n
The first stage of the Falcon 9 rocket that launched this mission was core B1060.2. This designation originates from SpaceX\u2019s internal booster naming\/numbering scheme, with B1060 being the 60th Falcon 9\/Heavy booster core built by the company at their headquarters in Hawthorne, California, and the \u201c.2\u201d signifying that the booster has been configured for its second flight.<\/p>\n
See Also<\/h4>\n\n- Falcon 9\/Starlink v1.0 L11 UPDATES<\/li>\n
- SpaceX Missions Section<\/li>\n
- L2 SpaceX Section<\/li>\n
- Click here to Join L2<\/li>\n<\/ul>\n
B1060 was previously used to launch the third GPS Block III satellite to orbit for the United States Space Force on June 30, 2020. During that mission, the booster safely landed on the deck of the droneship \u201cJust Read The Instructions\u201d, which was then towed back to Port Canaveral. Once safely in port, B1060 was lifted off of JRTI and taken back to SpaceX\u2019s facilities at Cape Canaveral Air Force Station for refurbishment.<\/p>\n
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B1060 was used once again to support this Starlink mission, which saw a full batch of 60 Starlink internet satellites deployed in low Earth orbit.<\/p>\n
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A batch of 60 Starlink satellites, fully stacked and ready for launch \u2013 credit: SpaceX<\/p>\n
The Starlink V1.0 L11 mission was the eleventh launch of operational Starlink satellites to date, with a total of 593 V1.0 spacecraft already launched as part of the initial deployment phase of SpaceX\u2019s satellite internet constellation. This first phase will see 1,584 Starlink satellites launched over multiple missions, with additional deployment phases and satellite launches to follow.<\/p>\n
SpaceX has begun to offer the opportunity to test the beta version of the Starlink internet service to private users, with public beta testing set to be offered later this year. Updates on beta testing will be provided on the company\u2019s website.<\/p>\n
Each Starlink satellite features a flat-panel design with multiple high-throughput phased array antennas, a single solar panel for on-orbit power generation, and a star tracker navigation system. A single Krypton-fueled Hall-effect thruster is equipped for in-space propulsion, and is used for orbit raising maneuvers and deorbit burns.<\/p>\n
Like on previous Starlink missions, each Starlink satellite will also feature a sun shade, or visor, which will block sunlight from reflecting off of the majority of the spacecraft body while in orbit and reducing its overall albedo\/intrinsic brightness as observed from the ground. These visors will deploy shortly after spacecraft separation.<\/p>\n
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Artist\u2019s impression of a Starlink satellite using its visor to block incoming sunlight \u2013 credit: SpaceX<\/p>\n
Each operational Starlink satellite weighs in at approximately 260 kilograms (573 pounds), which leads to a full batch of Starlinks weighing in at about 15,600 kilograms (34,380 pounds) at liftoff. These are some of the heaviest payloads that can be launched on a Falcon 9 when in its reusable configuration.<\/p>\n
The countdown commenced at the T-38 minute mark, when the launch director polled the mission teams to proceed into propellant loading operations. When the \u201cgo\u201d was given, chilled RP-1 fuel (a high-grade form of kerosene) flowed into both stages of the Falcon 9 launch vehicle starting at 35 minutes before liftoff, along with liquid oxygen (LOX) loading into the first stage. LOX loading onto Falcon 9\u2019s second stage started at T-16 minutes.<\/p>\n
At T-7 minutes prior to liftoff, the liquid oxygen pre-valves on the nine Merlin-1D first stage engines opened, thereby allowing LOX to flow through the engine plumbing and condition the turbopumps for ignition. This process is known as \u201cengine chilling\u201d, and is used to prevent thermal shock that could damage the motors upon startup.<\/p>\n
At the T-1 minute mark, the Falcon 9\u2019s onboard flight computers ran through final checks of the vehicle\u2019s systems and finalize tank pressurization before flight. The launch director gave a final \u201cgo\u201d for launch at T-45 seconds.<\/p>\n
The nine Merlin-1D engines on the first stage ignited at T-3 seconds, with liftoff taking place at T-0 following a quick final check by the onboard computers to verify that all systems are operating nominally.<\/p>\n
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Planned mission profile for a Falcon 9 launch and droneship landing \u2013 credit: SpaceX<\/p>\n
After lifting off from LC-39A, Falcon 9 began pitching downrange as it accelerated towards orbital velocity. At around 1 minute and 12 seconds into the flight, the vehicle passed through the region of maximum aerodynamic pressure, or \u201cMax-Q\u201d. During this portion of flight, the mechanical stresses on the rocket are at their highest.<\/p>\n
The nine Merlin-1D engines on Falcon 9\u2019s first stage continued to burn until around T+2 minutes and 32 seconds, at which point they all shut down simultaneously in an event known as MECO, or Main Engine Cutoff. Stage separation occurred shortly afterward, with second stage Merlin Vacuum engine ignition at the T+2 minute 43 second mark. Upon engine startup, the second stage continued to carry the 60 Starlinks to a low Earth orbit, with an inclination of 53 degrees.<\/p>\n
The Falcon 9 rocket\u2019s 5-meter payload fairing, which housed the payloads during the initial phases of launch, deployed at approximately 3 minutes and 12 seconds into the flight. After separation, both halves of the fairing descended back to Earth to be recovered by GO Ms. Tree, one of the two ships that SpaceX has at their disposal for fairing recovery operations (the other being GO Ms. Chief).<\/p>\n
While Falcon 9\u2019s second stage and the Starlink payloads continued to press onward to low Earth orbit, Falcon core B1060.2 returned to Earth to conduct a propulsive landing on the droneship \u201cOf Course I Still Love You\u201d, stationed approximately 630 kilometers (391.4 miles) downrange from the launch site.<\/p>\n
The first stage performed an entry burn at around 7 minutes into the flight, in order to slow its descent and refine its trajectory to the droneship. The final landing burn was completed at the T+8 minute 19 second mark, with B1060.2 touching down softly on the deck of OCISLY under the power from a single Merlin-1D engine.<\/p>\n<\/p>\n
B1060 was previously used to launch the third GPS Block III satellite to orbit for the United States Space Force on June 30, 2020. During that mission, the booster safely landed on the deck of the droneship \u201cJust Read The Instructions\u201d, which was then towed back to Port Canaveral. Once safely in port, B1060 was lifted off of JRTI and taken back to SpaceX\u2019s facilities at Cape Canaveral Air Force Station for refurbishment.<\/p>\n
Space Technology (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n B1060 was used once again to support this Starlink mission, which saw a full batch of 60 Starlink internet satellites deployed in low Earth orbit.<\/p>\n A batch of 60 Starlink satellites, fully stacked and ready for launch \u2013 credit: SpaceX<\/p>\n The Starlink V1.0 L11 mission was the eleventh launch of operational Starlink satellites to date, with a total of 593 V1.0 spacecraft already launched as part of the initial deployment phase of SpaceX\u2019s satellite internet constellation. This first phase will see 1,584 Starlink satellites launched over multiple missions, with additional deployment phases and satellite launches to follow.<\/p>\n SpaceX has begun to offer the opportunity to test the beta version of the Starlink internet service to private users, with public beta testing set to be offered later this year. Updates on beta testing will be provided on the company\u2019s website.<\/p>\n Each Starlink satellite features a flat-panel design with multiple high-throughput phased array antennas, a single solar panel for on-orbit power generation, and a star tracker navigation system. A single Krypton-fueled Hall-effect thruster is equipped for in-space propulsion, and is used for orbit raising maneuvers and deorbit burns.<\/p>\n Like on previous Starlink missions, each Starlink satellite will also feature a sun shade, or visor, which will block sunlight from reflecting off of the majority of the spacecraft body while in orbit and reducing its overall albedo\/intrinsic brightness as observed from the ground. These visors will deploy shortly after spacecraft separation.<\/p>\n Artist\u2019s impression of a Starlink satellite using its visor to block incoming sunlight \u2013 credit: SpaceX<\/p>\n Each operational Starlink satellite weighs in at approximately 260 kilograms (573 pounds), which leads to a full batch of Starlinks weighing in at about 15,600 kilograms (34,380 pounds) at liftoff. These are some of the heaviest payloads that can be launched on a Falcon 9 when in its reusable configuration.<\/p>\n The countdown commenced at the T-38 minute mark, when the launch director polled the mission teams to proceed into propellant loading operations. When the \u201cgo\u201d was given, chilled RP-1 fuel (a high-grade form of kerosene) flowed into both stages of the Falcon 9 launch vehicle starting at 35 minutes before liftoff, along with liquid oxygen (LOX) loading into the first stage. LOX loading onto Falcon 9\u2019s second stage started at T-16 minutes.<\/p>\n At T-7 minutes prior to liftoff, the liquid oxygen pre-valves on the nine Merlin-1D first stage engines opened, thereby allowing LOX to flow through the engine plumbing and condition the turbopumps for ignition. This process is known as \u201cengine chilling\u201d, and is used to prevent thermal shock that could damage the motors upon startup.<\/p>\n At the T-1 minute mark, the Falcon 9\u2019s onboard flight computers ran through final checks of the vehicle\u2019s systems and finalize tank pressurization before flight. The launch director gave a final \u201cgo\u201d for launch at T-45 seconds.<\/p>\n The nine Merlin-1D engines on the first stage ignited at T-3 seconds, with liftoff taking place at T-0 following a quick final check by the onboard computers to verify that all systems are operating nominally.<\/p>\n Planned mission profile for a Falcon 9 launch and droneship landing \u2013 credit: SpaceX<\/p>\n After lifting off from LC-39A, Falcon 9 began pitching downrange as it accelerated towards orbital velocity. At around 1 minute and 12 seconds into the flight, the vehicle passed through the region of maximum aerodynamic pressure, or \u201cMax-Q\u201d. During this portion of flight, the mechanical stresses on the rocket are at their highest.<\/p>\n The nine Merlin-1D engines on Falcon 9\u2019s first stage continued to burn until around T+2 minutes and 32 seconds, at which point they all shut down simultaneously in an event known as MECO, or Main Engine Cutoff. Stage separation occurred shortly afterward, with second stage Merlin Vacuum engine ignition at the T+2 minute 43 second mark. Upon engine startup, the second stage continued to carry the 60 Starlinks to a low Earth orbit, with an inclination of 53 degrees.<\/p>\n The Falcon 9 rocket\u2019s 5-meter payload fairing, which housed the payloads during the initial phases of launch, deployed at approximately 3 minutes and 12 seconds into the flight. After separation, both halves of the fairing descended back to Earth to be recovered by GO Ms. Tree, one of the two ships that SpaceX has at their disposal for fairing recovery operations (the other being GO Ms. Chief).<\/p>\n While Falcon 9\u2019s second stage and the Starlink payloads continued to press onward to low Earth orbit, Falcon core B1060.2 returned to Earth to conduct a propulsive landing on the droneship \u201cOf Course I Still Love You\u201d, stationed approximately 630 kilometers (391.4 miles) downrange from the launch site.<\/p>\n The first stage performed an entry burn at around 7 minutes into the flight, in order to slow its descent and refine its trajectory to the droneship. The final landing burn was completed at the T+8 minute 19 second mark, with B1060.2 touching down softly on the deck of OCISLY under the power from a single Merlin-1D engine.<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n