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{{Use mdy dates|date=June 2019}}▼
{{short description|Falcon 9 first stage booster}}▼
{{Redirect|B1048|the British road|B1048 road}}
{|{{Infobox aircraft begin▼
{{Use American English|date=February 2021}}
| image = File:SAOCOM_1A_Mission_(44262177535).jpg▼
| name = Falcon 9 booster B1048<br />{{Flagicon|USA}}[[File:SpaceX logo.png|frameless|upright=0.25|link=SpaceX]][[File:Falcon 9 logo by SpaceX.png|frameless|upright=0.15|link=Falcon 9 Block 5]]
| caption = B1048 following
▲| national origin = United States
| type = [[Falcon 9]] first-stage booster
| manufacturer = [[SpaceX]]
|
| first_flight = 25 July 2018 [[Iridium constellation|(Iridium-7)]]
| last_flight = 18 March 2020 [[Starlink|(Starlink L5)]]
| flights =
| status =
'''Falcon 9 booster B1048''' was a reusable orbital-class [[Falcon 9 Block 5|Block 5]] [[Falcon 9]] [[Multistage rocket|first-stage]] [[Booster (rocketry)|booster]] manufactured by [[SpaceX]]. B1048 was the third Falcon 9 Block 5 to fly and the second Block 5 booster to re-fly. It became the second orbital-class booster to fly a third time and is the first booster ever to be launched five times. B1048 service came to an end on its fifth flight when an engine shut down prematurely on launch. Whilst the primary mission was unaffected and the [[Starlink]] payload deployed successfully,<ref>{{cite web|last1=Atkinson |first1=Ian|title=SpaceX successfully launches sixth Starlink launch despite engine issue|date=18 March 2020 |url=https://www.nasaspaceflight.com/2020/03/spacex-sixth-starlink-fifth-booster-reflight/|publisher=NASASpaceFlight.com |access-date=20 March 2020}}</ref> B1048 was unable to land. In a subsequent investigation, SpaceX found that [[isopropyl alcohol]], used as cleaning fluid, was trapped and ignited causing the engine to be shut down. To address the issue, in a following launch SpaceX indicated that the cleaning process was not done.<ref name="BJbif">{{cite web|last=Clark|first=Stephen|title=Falcon 9 rocket overcomes engine failure to deploy Starlink satellites|url=https://spaceflightnow.com/2020/03/18/falcon-9-rocket-overcomes-engine-failure-to-deploy-starlink-satellites/|publisher=Spaceflight Now|access-date=2020-11-01}}</ref><ref name="Vnfs2">{{cite web|last=Clark|first=Stephen|title=SpaceX's Starlink network surpasses 400-satellite mark after successful launch|url=https://spaceflightnow.com/2020/04/22/spacexs-starlink-network-surpasses-400-satellite-mark-after-successful-launch/|publisher=Spaceflight Now|access-date=2020-11-01}}</ref><ref name="GjzNf">{{cite web|date=2020-04-23|title=Safety panel concludes May launch of commercial crew test flight is feasible|url=https://spacenews.com/safety-panel-concludes-may-launch-of-commercial-crew-test-flight-is-feasible/|publisher=SpaceNews|access-date=2020-11-01}}</ref>
== Flight history ==
'''First flight'''
B1048 entered service on July 25, 2018 for the Iridium-7 mission. It was the third Falcon 9 Block 5 to enter service and the first to lift off from the west coast launch site at [[Vandenberg Air Force Base|Vandenberg Air Force Station.]] The flight marked the 59th flight of the Falcon 9 and the 13th Falcon 9 flight for 2018. The booster lifted off despite the foggy weather and completed the two and-a-half minute burn before separating from the second stage and, despite stormy weather and choppy seas making booster recovery unlikely, the booster landed on the west coast [[Autonomous spaceport drone ship|ASDS]] ''Just Read the Instructions'' in the roughest seas for a landing attempt at the time. This marked the 5th landing out of 6 landing attempts on JRTI. Fairing recovery was attempted during the flight but failed due to the weather.<ref>{{Cite web|last=Dodd|first=Tim|url=https://everydayastronaut.com/iridium-7/|title=SpaceX’s flawless launch of Iridium 7 featuring lots of fog and a missed fairing recovery|date=2018-07-25|website=Everyday Astronaut|language=en-US|access-date=2019-02-21}}</ref>▼
▲B1048 entered service on 25 July
Despite being the third Block 5 to fly, B1048 was refurbished quicker than her older booster, B1047, and became the second Falcon 9 Block 5 to re-fly. B1048 launched the 62nd Falcon 9 mission for the SAOCOM 1A mission from Vandenberg on October 8, 2018. Due to the twilight effect on launches from the west coast, spectacular views were seen from Los Angeles and other Southern California cities.<ref>{{Cite web|last=Malik|first=Tariq|url=https://www.space.com/42058-spacex-spectacular-nighttime-rocket-launch-saocom-1a.html|title=Spectacular SpaceX Rocket Launch Lights Up the Southern California Night Sky|website=[[Space.com]]|date=2018-10-08|language=en|access-date=2019-02-21}}</ref> This mission was historic as it was the first Falcon 9 to perform a [[Return-to-launch-site|RTLS]] landing on the west coast, landing at [[Landing Zones 1 and 2|LZ-4]] just minutes after lifting off.<ref>{{Cite web|last=Graham|first=William|url=https://www.nasaspaceflight.com/2018/10/spacex-falcon-9-saocom-1a-launch-west-coast-landing/|title=SpaceX Falcon 9 launches with SAOCOM 1A and nails first West Coast landing|website=[[NASASpaceFlight.com]]|date=2018-10-07|language=en-US|access-date=2019-02-21}}</ref>▼
'''Second flight'''
Following landing, B1048 was transported to the east coast and launched the Nusantara Satu mission on February 22, 2019. This marked the second time an orbital-class booster flew three times. The re-entry was the highest re-entry heating to date due to the high energy profile of the mission.<ref>{{Cite tweet|number=1098767597858779136|title=Highest reentry heating to date. Burning metal sparks from base heat shield visible in landing video. Fourth relight scheduled for April.|date=2019-02-21|user=elonmusk|author-link=Elon Musk|language=en|access-date=2019-02-22}}</ref> This caused the booster to also land further down range than a normal landing. Fairing recovery was planned for the mission but abandoned due to extremely rough weather. Despite the weather making it the hardest landing to date (even rougher than Iridium-7 which B1048 had endured on its maiden flight), B1048 successfully landed on the ASDS ''Of Course I Still Love You''.▼
▲Despite being the third Block 5 to fly, B1048 was refurbished quicker than
'''Third flight'''
▲Following landing, B1048 was transported to the east coast and launched the Nusantara Satu mission on February 22, 2019. This marked the second time an orbital-class booster flew three times. The re-entry was the highest re-entry heating to date due to the high energy profile of the mission.<ref>{{Cite tweet |number=1098767597858779136 |title=Highest reentry heating to date. Burning metal sparks from base heat shield visible in landing video. Fourth relight scheduled for April. |date=2019-02-21 |user=elonmusk |author-link=Elon Musk |language=en |access-date=2019-02-22}}</ref> This caused the booster to also land further down range than a normal landing. Fairing recovery was planned for the mission but abandoned due to extremely rough weather. Despite the weather making it the hardest landing to date (even rougher than Iridium-7 which B1048 had endured on its maiden flight), B1048 successfully landed on the ASDS ''Of Course I Still Love You''.
'''Fourth Flight'''
B1048 was originally scheduled to fly the in-flight abort test of the Crew Dragon; this would have brought B1048 service to an end after her fourth flight.<ref>{{Cite tweet |number=1098768310844313601 |title=Crew Dragon high altitude abort test |author-link=Elon Musk|date=2019-02-21 |user=elonmusk |language=en |access-date=2019-02-22}}</ref> However, this was changed, and B1048 flew the Starlink Mission in November 2019 from SLC-40. On this mission, B1048 became the first Booster to fly four times and also featured for the first time re-used fairings.<ref>{{cite web |last1=Burghardt |first1=Thomas |title=SpaceX and Cape Canaveral Return to Action with First Operational Starlink Mission |url=https://www.nasaspaceflight.com/2019/11/spacex-cape-return-first-operational-starlink-mission/ |website=NASASpaceflight |date=11 November 2019 |publisher=NASASpaceflight |access-date=20 March 2020}}</ref> B1048 successfully landed and returned home for future flights.
'''Fifth flight'''
B1048 flew a fifth time in March 2020, breaking the reusability record for Falcon 9. One of the engines shut down early on the ascent, and the booster failed to land. However, the primary Starlink 5 mission to launch 60 Starlink satellites to a [[low Earth orbit]] (LEO) was successful.<ref>{{Cite web |url=https://www.nasaspaceflight.com/2020/03/spacex-sixth-starlink-fifth-booster-reflight/ |title=SpaceX successfully launches sixth Starlink launch despite engine issue |date=2020-03-18 |website=NASASpaceflight.com |language=en-US |access-date=2020-03-18}}</ref>
{| class="wikitable"
!Flight #
Line 47 ⟶ 51:
|1
|July 25, 2018
|[[List of Falcon 9 and Falcon Heavy launches (2010-2019)#
|[[Iridium satellite constellation|Iridium-7]]
|[[File:Iridium-7_Mission_(41868222930).jpg|250x250px|Iridium-7 Mission (41868222930)]]
|[[Vandenberg AFB Space Launch Complex 4|VAFB, SLC-4E]]
|[[Just Read the Instructions]] (ASDS)
|Third flight of the Block 5 booster and roughest landing conditions for a Falcon 9 at the time
Line 56 ⟶ 60:
|2
|October 8, 2018
|[[List of Falcon 9 and Falcon Heavy launches (2010-2019)#
|[[SAOCOM 1A]]
|[[File:SAOCOM_1A_Mission_(45184770841).jpg|250x250px|SAOCOM 1A Mission (45184770841)]]
|[[Vandenberg AFB Space Launch Complex 4|VAFB, SLC-4E]]
|[[Landing Zones 1 and 2|LZ-4]]
|Second
|-
|3
|February 22, 2019
|[[List of Falcon 9 and Falcon Heavy launches (2010-2019)#
|[[Nusantara Satu]]
|[[File:Nusantara_Satu_Mission_-_47173936181.jpg|250x250px|Nusantara Satu Mission - 47173936181]]
|[[Cape Canaveral Air Force Station|CCAFS]], [[Cape Canaveral Air Force Station Space Launch Complex 40|LC-40]]
|[[Of Course I Still Love You]] (ASDS)
|Second time a booster is flown three times and the roughest landing condition for a Falcon 9 to date
Line 74 ⟶ 78:
|4
|November 11, 2019
|[[List of Falcon 9 and Falcon Heavy launches (2010-2019)#
|[[Starlink
|[[File:45th SW supports successful launch of Falcon 9 Starlink (5903425).jpeg|frameless|250x250px]]
|[[Cape Canaveral Air Force Station|CCAFS]], [[Cape Canaveral Air Force Station Space Launch Complex 40|LC-40]]
|[[Of Course I Still Love You]] (ASDS)
|Flight carried 60 Starlink satellites. The
|-▼
|March 18, 2020
|[[List of Falcon 9 and Falcon Heavy launches (2020-2022)#F9-083|83]]
|[[Starlink|Starlink L5]]
|[[File:B1048 Flights for the last time for the sixth starlink mission.jpg|250x250px]]
|[[Kennedy Space Center|KSC]], [[Kennedy Space Center Launch Complex 39|39A]]
|''' {{Failure}} '''
[[Of Course I Still Love You]] (ASDS)
|Flight carried 60 Starlink satellites. The first time a Falcon 9 booster has flown five times. Engine anomaly during ascent; booster failed to land.
|}
== B1048 records and achievements ==
* First and second flight of a re-used payload fairing (ocean splashdown)<ref name=":0"/>
* First booster to land at [[Landing Zone 4]] at Vandenberg Air Force Base, California<ref>{{Cite web|url=https://mashable.com/article/spacex-west-coast-landing|title=SpaceX lands its first rocket on West Coast ground|first=Johnny|last=Lieu|date=8 October 2018|website=Mashable}}</ref>
▲|-
▲|4
▲|Starlink F1<ref>{{Cite web|url=https://www.nasaspaceflight.com/2019/11/spacex-fires-up-falcon-9-starlink-mission/|title=SpaceX finally fires up Falcon 9 ahead of Starlink mission|date=2019-11-05|website=NASASpaceFlight.com|language=en-US|access-date=2019-11-07}}</ref>
== See also ==
{{portal|Spaceflight|Transport}}
* {{Cl|Individual Falcon 9 boosters}}
* [[List of Falcon 9 first-stage boosters]]
* [[Grasshopper (rocket)|Grasshopper]]
* [[New Shepard|Blue Origin New Shepard]]
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