Falcon 9 | SDA Tranche 0 Flight 1 | 02.04.2023

[Lion97]

Numer misji   #225   
Data   2 kwietnia 2023, 16:29 czasu polskiego
Materiały prasowe    Space Development Agency's Tranche 0 Press Kit
Miejsce startu   VSFB SLC-4E 
Miejsce lądowania   Landing Zone 4
Rakieta   Falcon 9 Block 5
Booster   1075.2
Ładunek   8 satelitów Transport Layer Tranche 0, 2 satelity Tracking Layer Tranche 0
Docelowa orbita   polarna (LEO)
Klient   SDA

Pierwsza z dwóch misji, w ramach których na orbitę mają trafić wojskowe satelity należące do amerykańskiej agencji SDA (ang. Space Development Agency), odpowiedzialnej za koordynowanie działań w kosmosie. Satelity trafią na orbitę polarną o wysokości 950 km nad Ziemią. Będą to satelity z tzw. Warstwy Śledzenia (ang. Tracking Layer),  której zadaniem będzie wykrywanie i śledzenie pocisków balistycznych i hipersonicznych, oraz satelity z tzw. Warstwy Transportowej (ang. Transport Layer), która ma stworzyć wojskową szkieletową sieć komunikacyjną. Wszystkie satelity będą należeć do tzw. transzy zerowej, co oznacza, że są one wersją demonstracyjną, mającą przetestować technologie dla przyszłych docelowych systemów.

Satelity należące do Warstwy Śledzenia, które zostaną wystrzelone podczas tej misji, prawdopodobnie zostały wyprodukowane przez SpaceX we współpracy z firmą Leidos. Firma otrzymała kontrakt na budowę czterech takich satelitów w październiku 2020 roku.

SpaceX posiada kontrakt od Departamentu Obrony USA na wyniesienie 28 satelitów transzy zerowej podczas dwóch startów, drugi z nich ma odbyć się w dalszej części roku.



źródło

[TomIR]

W T-3 s miał miejsce abort. To chyba nie zdarza się często w przypadku Falcona 9?

[Orionid]

W T-3 s miał miejsce abort. To chyba nie zdarza się często w przypadku Falcona 9?

Zdarzyło się wcześniej przerwanie startu w ostatniej sekundzie.
https://www.forum.kosmonauta.net/index.php?topic=3941.msg142677#msg142677

Falcon 9 aborted launch with Tranche 0

F9/SDA Tranche 0: Launch director reports engineers are assessing telemetry; in the meantime, the vehicle and payload are healthy; and with that, SpaceX has ended its launch webcast; we'll stand by for updates via social media as to the plan forward

https://twitter.com/cbs_spacenews/status/1641448434925441024

Falcon 9 had an auto abort just prior to T-0. Vehicle and payload are in good health; teams are resetting for a launch attempt tomorrow, March 31 at 7:29 a.m. PT

https://twitter.com/SpaceX/status/1641454702310338571
Space Development Agency to Launch 10 Satellites
March 29, 2023 | By C. Todd Lopez , DOD News |   

The first 10 of 28 satellites which make up Tranche 0 of the "Proliferated Warfighter Space Architecture," are set to launch tomorrow morning out of Vandenberg Space Force Base in California.

The Space Development Agency is responsible for the launch and for development of the Proliferated Warfighter Space Architecture. Tomorrow's group of satellites, which the SDA is also calling the "Warfighter Immersion Tranche," comes just four years after the SDA was stood up.

"We're pretty excited about that because this is the first dedicated SDA launch," Derek M. Tournear, director of the Space Development Agency, said. "All of the satellites on the rocket tomorrow will be SDA satellites and it's the first launch of the Proliferated Warfighter Space Architecture. We're right at two and a half years from order to orbit — so we're pretty excited to show that the model actually does work to be able to do that, that proliferation, to get the capabilities to the warfighter at speed."

The Proliferated Warfighter Space Architecture system will eventually include hundreds of satellites, delivered in "tranches" every two years, with each tranche providing more capability than the last.

The NDSA's network of hundreds of optically-connected satellites will deliver two primary capabilities to warfighters on the ground. The first is beyond line-of-sight targeting for ground and maritime time-sensitive targets, which includes mobile missiles and ships, for instance. The system will provide the ability to detect those targets, track them, calculate a fire control solution and then deliver that solution down to a weapons platform so that the target can be destroyed. The second capability is similar to the first, but for enemy missiles already in flight.

Following tomorrow's launch, those first ten satellites — eight of which are "transport layer" satellites and two of which are "tracking layer" satellites — will undergo calibration and their efficacy will also be evaluated with a series of tests.

"When they're first up there, they're going to go through a period of calibration and then after calibration, then they'll look for targets of opportunity ... launches that we're able to detect and track to help get calibration data," Tournear said.

Actual tracking test events designed by the SDA, using U.S.-flown aircraft, will come in spring of '24, Tournear said.

"On the transport side ... we have a lot of lower-level exercises that the warfighters are going to participate in to test everything out," Tournear said. "Most of those on the Link-16 side will start out with tests at Eglin Test and Training facility to demonstrate that, and really iron out all the bugs and figure out exactly how to do this connectivity with terrestrial Link-16 radios in space. And then we'll start to start to participate in some other exercises then in the Indo-Pacom region after that, primarily working with the Marines and some of their planned exercises."

That warfighters will be involved in working out how the Tranche 0 satellites can be used is why it's also called the "Warfighter Immersion Tranche," Mike Eppolito, the Tranche 0 program director, said.

"We are demonstrating the core architecture that will evolve in future tranches," Eppolito said. "The satellites that we have up there, the intent there is to get them in the warfighters hands so they can start developing their techniques to be able to use them, to give them the timeline to go through their training and to allow them to start thinking about how they would use the larger constellation once we have it an orbit. So ours is intended to be the demonstration tranche that allows them to sort of get their feet wet and start using the capabilities that we're putting on orbit."

The other 18 satellites that make up the 28 satellites in Tranche 0 are expected to launch in June. The SDA plans to launch new tranches of satellites every two years.

The Proliferated Warfighter Space Architecture involves seven layers, which include a mesh network of hundreds of optically interconnected satellites in orbit that make up its "transport" layer. There will also be tracking, custody, deterrence, navigation, battle management and support layers.

https://www.defense.gov/News/News-Stories/Article/Article/3345559/space-development-agency-to-launch-10-satellites/

[artpoz]

Nie będzie dziś startu. Potrzebują więcej czasu na znalezienie przyczyny. Może jutro.

[Lion97]

SpaceX powiedziało podczas transmisji, że dane jednego z dziewięciu silników spowodowały abort w czwartek. SpaceX potwierdziło, że pojazd jest zdrowy i Falcon 9 bez problemu wystartował, a następnie wylądował na Landing Zone 4.

https://twitter.com/SpaceX/status/1642536772134658048

[Orionid]

To miał być 9. start F9 w marcu, a okazał się 1-szym w kwietniu.
Inauguracyjna Tranche-0 będzie się składać z 28 satelitów [SN,SFN].
Kolejny start F9 dedykowany Tranche-0 z 18 satelitami planowany jest w czerwcu.
Ostatecznie konstelacja ma składać się z ponad 150 satelitów rozmieszczonych w różnych płaszczyznach orbitalnych ok. 1000 kilometrów nad Ziemią.
Przewagą konstelacji tak rozbudowanej jest mniejsza podatność na jej wyeliminowanie przez przeciwnika.

Początek nowej konstelacji
  02.04. o 14:29 z wyrzutni Vandenberg wystrzelona została RN Falcon-9R, która wyniosła na orbitę o parametrach: hp=941 km, ha=952 km, i=81,00° w ramach misji SDA Tranche 0A pięć satelitów Transport Layer Tranche-0 A-Class, trzy Transport Layer Tranche-0 B-Class oraz dwa Tracking Layer Tranche-0 WFOV.
Pierwszy stopień RN (B1075.2) w T+8' 26" wylądował na LZ-4 w Vandenberg.
http://lk.astronautilus.pl/n230401.htm#02

Falcon 9 launches Tranche 0 and Falcon 9 first stage landing


https://twitter.com/cbs_spacenews/status/1641434306844270592

Here are some statistics for tonight's mission:
215th of a Falcon 9 rocket since 2010
225th launch of Falcon rocket family since 2006
2nd launch of Falcon 9 booster B1075
155th flight of a reused Falcon booster
1st SpaceX launch for Space Development Agency
38th SpaceX launch from Vandenberg Space Force Base
21st Falcon 9 launch of 2023
22nd orbital launch by SpaceX in 2023
6th orbital launch based out of Vandenberg in 2023
https://spaceflightnow.com/2023/03/30/falcon-9-sda-tranche-0a-mission-status-center/

Based on @Raul74Cz's reporting of the stage 2 reentry NOTAM, the SDA-0A Falcon 9 second stage reentry after deorbit was around 1702 UTC after about 1.5 orbits

https://twitter.com/planet4589/status/1642720120882581509
https://twitter.com/planet4589/status/1642721348085587970

U.S. military begins launching satellites to counter hypersonic missile threat
April 2, 2023 Stephen Clark

(...) The agency’s satellite fleet, called the Proliferated Space Warfare Architecture, will include satellites with infrared sensors to detect and track missiles in flight, along with spacecraft to relay the tracking data directly to ground, air, or naval forces using existing tactical radio networks. U.S. and allied forces could then shoot down the enemy missile. (...)
The first phase of SDA’s Proliferated Warfighter Space Architecture will consist of 28 satellites launching this year as a proof of concept for the missile tracking and data relay network, followed by more than 150 additional satellites launching in 2024 and 2025 to provide an initial operational capability. (...)
https://spaceflightnow.com/2023/04/02/u-s-military-begins-launching-satellites-to-counter-hypersonic-missile-threat/

The 20-strong Tranche 0 inaugural “layer” of TTL satellites are thus perceived as a means of unifying various space-based sensors to enable the Department of Defense’s Joint All-Domain Command and Control (JADC2) architecture to directly link tactical data transfer from space to warfighters on Earth. Tranche 0 will trial the ability “to integrate and provide interoperability with other warfighting entities” and facilitate the development of subsequent tranches, noted Dr. Tournear.

Headquartered at the Pentagon in Arlington, Va., the SDA was established back in March 2019 by then-Undersecretary of Defense for Research & Engineering (USD R&E) and former NASA Administrator Mike Griffin. It was formally transferred to U.S. Space Force jurisdiction last October and its remit encompasses deploying “disruptive” space technologies with an emphasis upon space-based ballistic and hypersonic missile defense using industry-procured low-cost constellations of satellites. (...)

Dr. Tournear outlined six core goals for the TTL program, which is expected to progress beyond Tranche 0, as the upgraded Tranche 1 comes online as soon as 2024, Tranche 2 as early as 2026 and early moves towards Tranche 3, possibly around 2028. The network seeks to demonstrate low-latency data transportation for warfighters and the acquisition and synthesization of data from multiple space-based sensors for relay via the TTL satellites directly to warfighters on the ground, at sea and in the air.

https://www.americaspace.com/2023/04/02/spacex-launches-inaugural-tranche-0-mission-for-sda-kicks-off-busy-april/

SpaceX launches 10 satellites for U.S. Space Development Agency
Sandra Erwin April 2, 2023

The mission to low Earth orbit is the first launch of a new military communications and missile tracking constellation

To track hypersonic missiles in all phases of flight, DoD determined that satellites in low orbit 1,000 kilometers above Earth would be better positioned to see these targets, as opposed to the existing geostationary satellites stationed 37,000 kilometers above Earth.

The launch on Sunday was Tranche 0 of SDA’s proliferated low Earth orbit constellation. These were the first 10 of 28 data-transport and missile-tracking satellites that make up Tranche 0.

https://spacenews.com/spacex-launches-10-satellites-for-u-s-space-development-agency/

The 10 payloads on this flight include eight Transport Layer satellites from York Space Systems and two Tracking Layer satellites from SpaceX.
The second launch in June will carry the rest of Tranche 0: two Transport Layer satellites from York Space Systems, eight Transport Layer satellites from Lockheed Martin, two Tracking Layer satellites from SpaceX, and four Tracking Layer satellites from L3Harris.

https://www.nasaspaceflight.com/2023/04/tranche-0-flight-1/
Transport Layer Tr.-0 A-Cl. 1  https://space.skyrocket.de/doc_sdat/transport-layer-tranche-0-a-class-york.htm
Transport Layer Tr.-0 A-Cl. 2
Transport Layer Tr.-0 A-Cl. 3
Transport Layer Tr.-0 A-Cl. 4
Transport Layer Tr.-0 A-Cl. 5
Transport Layer Tr.-0 B-Cl. 1  https://space.skyrocket.de/doc_sdat/transport-layer-tranche-0-b-class-york.htm
Transport Layer Tr.-0 B-Cl. 2
Transport Layer Tr.-0 B-Cl. 3
Tracking Layer Tr.-0 WFOV 1  https://space.skyrocket.de/doc_sdat/tracking-layer-tranche-0-wfov-spx.htm
Tracking Layer Tr.-0 WFOV 2