https://nextspaceflight.com/launches/details/6773
ЦитироватьProject Kuiper Protoflight
Launch Time
NET October, 2023
Rocket
Atlas V 501
ULA
...
Mission Details
KuiperSat Protoflight
First launch of the Kuiper satellites of Amazon's mega constellation, to a 500 km, 30 degrees inclination LEO.
Project Kuiper is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, this constellation will be managed by Kuiper Systems LLC, a subsidiary of Amazon. This constellation is planned to be composed of 3,276 satellites. The satellites are projected to be placed in 98 orbital planes in three orbital layers, one at 590 km, 610 km and 630 km altitude.
Payloads: 2 Low Earth Orbit
Location
SLC-41, Cape Canaveral SFS, Florida, USA
ЦитироватьULA @ulalaunch
We are switching gears today at Cape Canaveral to begin preparing for our next mission -- @Amazon's #ProjectKuiper #Protoflight! The booster stage of an #AtlasV 501 rocket has arrived at the Vertical Integration Facility for hoisting aboard the Mobile Launch Platform.
(https://img.novosti-kosmonavtiki.ru/348785.jpg)
Сначала первые два Койперсата (спутники-прототипы KuiperSat-1 и KuiperSat-2) планировали на RS1 запустить. У которой выводимая масса на НОО в районе 1300 кг обещалась. И обтекатель диаметром 6 футов (~180 см).
Потом Амазон их без объяснения причин с RS1 убрал (причем раньше чем оно не взлетело) и передвинул на будущий Вулкан вместе еще с разной нагрузкой. Но Вулкан вот всё никак не летит. Так что и с него, выходит убрали.
Но для целого Атласа V, да еще с 5-ти метровым обтекателем, двух этих двух демонстрационных койперсатов не маловато будет? Они там скорее на "попутную нагрузку" разве что тянут, если это те же, что собирались на RS1 пускать.
https://blog.ulalaunch.com/blog/protoflight-atlas-v-stacked-ahead-of-first-kuiper-launch
ЦитироватьProtoflight: Atlas V stacked ahead of first Kuiper launch (https://blog.ulalaunch.com/blog/protoflight-atlas-v-stacked-ahead-of-first-kuiper-launch)
September 20, 2023
(https://img.novosti-kosmonavtiki.ru/349021.webp)
The Atlas V booster stage is hoisted into the VIF. Photo by United Launch Alliance
United Launch Alliance (ULA) uses heavy-duty cranes, teamwork and a lot of coordination to assemble our massive rockets before they head into space. That art of rocket stacking is both time-tested and an obligation to some passengers who require vertical integration of their payloads.
This week, engineers and technicians at Cape Canaveral Space Force Station, Florida, completed the initial buildup of the Atlas V 501 rocket that will launch prototypes of the Project Kuiper broadband system for Amazon.
The satellites will add real-world data from space to results from Amazon's extensive lab testing, fieldwork, and simulation. This Protoflight mission also helps Amazon finalize design, deployment and operational plans ahead of a full-scale deployment beginning in 2024.
Preparations for this first launch began Sept. 16 with the Launch Vehicle on Stand (LVOS) milestone.
Before sunrise, the move crew arrived at the Advanced Spaceflight Operations Center (ASOC) to configure the Atlas V first stage for its delivery to the Vertical Integration Facility (VIF), located about four miles up the road.
(https://img.novosti-kosmonavtiki.ru/349023.webp)
The Atlas V booster arrives at the VIF. Photo by United Launch Alliance
The 106.5-foot-long (32.5m), 12.5-foot-diameter (3.8m) stage is pulled by a semi-truck while its hefty engine section in the aft rests on a dolly with steerable axles for maneuvering the rocket in challenging turns during transports.
The truck's air-ride system was readied, the dolly was powered up and the team received a final briefing before departure, explained Alex Polimeni, the ULA launch operations mechanical engineer in charge of the day's move.
"The booster transport signals the very beginning of a launch campaign at Cape Canaveral, and it is humbling to be entrusted with the responsibility and safety of a large part of the launch vehicle for a critical mission," Polimeni said.
Emerging from the ASOC bay, Atlas V made its pre-dawn traverse at a top speed never exceeding 25 mph (40 kmph).
Passing by the VIF and entering Space Launch Complex (SLC)-41, the rocket made the onerous U-turn and drove to the north apron of the VIF, parking at precise marks within the overhead crane's envelope for the hoisting operations to come.
The hoist crew, led by ULA engineer Kevin Stevenson, then took over. He has worked in the aerospace industry since 1987, a career that includes the space shuttle, Delta II, Atlas V and Vulcan.
(https://img.novosti-kosmonavtiki.ru/349024.webp)
The Atlas V is lifted up by cranes to move the breakover fixture into position. Photo by United Launch Alliance
What's it like to be the person in charge of hoisting a giant rocket? "Hectic, challenging and fun. Keeping an eye on all the preps leading up to the task is very important for a smooth and successful operation. Making sure things go as intended while performing the ops keeps you busy," Stevenson said.
"But it is never routine. New challenges seem to find a way to creep into the best made plans."
The LVOS team of approximately 25 personnel starts its work by attaching the VIF crane to the forward lift fixture bolted to the front of the Atlas and a mobile crane used to lift the rocket's aft end by connecting it onto a perpendicular beam running underneath the booster.
After raising the horizontal rocket a few inches to disengage the semi-truck, the driver then shimmied it out of the tight confines between the booster and the Mobile Launch Platform (MLP).
(https://img.novosti-kosmonavtiki.ru/349025.webp)
The VIF crane moves Atlas V into the building. Photo by United Launch Alliance
That allowed the cranes to fully raise the rocket several feet higher into the air while a special mechanical structure, called the breakover fixture, was moved along rail tracks to the desired position for the bright-yellow aft beam to be situated in its receiving sockets.
The breakover fixture is the device that enables the Atlas V to be rotated from horizontal to vertical. Once the mobile crane is detached, only the VIF crane in the front is left to do the lifting.
The crane slowly began to draw upwards as the breakover fixture inched forward toward the building, with spotters watching both on the ground and in the VIF as the translation proceeded. The aft beam glacially rotated in the sockets as the bronze booster steadily moved 90 degrees to stand upright.
Once pointed skyward, the aft beam was unfastened and the rocket was ready to be hoisted through the VIF doorway and positioned on the MLP.
Getting the booster on the MLP involved lining up supports on the rocket with the three launch mounts that protrude from the platform. They will contain the release mechanisms that fire at liftoff for the Atlas V to depart the launch pad with its main engine at full throttle.
Following a day of preparations and removal of the forward lift fixture from the rocket, the Centaur upper stage attachment came on Sept. 19 to complete the rocket's main assembly, minus only the satellite payload.
Michael DeArce, a ULA engineer since 2016 and three-year veteran working pneumatic, propulsion and mechanical operations on Centaur, oversaw getting the upper stage lifted and bolted into place atop the first stage.
Centaur came to the VIF in a pre-assembled structure known as the Offsite Vertical Integration (OVI) stack, which consists of the interstage adapter, the Centaur stage and the lower half of the payload fairing, called the base module. The OVI is put together in a test cell at the Delta Operations Center (DOC) and then moved to the VIF when the first stage is ready to receive.
"To build an OVI stack, there are six hoisting operations that need to be performed. Each lift has its own weather restrictions, and since Florida weather can be unpredictable, this can cause schedule delays when building the rocket outside at the VIF. OVI processing allows us to do all of these lifting operations inside the DOC while sheltered from the weather to reduce any delays," DeArce said.
(https://img.novosti-kosmonavtiki.ru/349026.webp)
The Centaur stack reaches the VIF. Photo by United Launch Alliance
Leaving the DOC at dawn, a semi-truck pulled the OVI stack across Cape Canaveral at a top speed of 10 mph (16 kmph).
"A completed OVI stack is approximately 60 feet (18 m) tall and top heavy. This puts the center of gravity well above the ground which requires us to transport very slowly and to have strict wind restrictions when transporting to the VIF," DeArce said.
Once positioned at the VIF, technicians used a cherry-picker to reach the top of the OVI to attach the crane while other workers removed the bolts holding the stack steady on the transport trailer.
Then it was time to lift.
"There is a lot of coordination required during the hoisting operation between multiple teams doing different task. When leading this operation, you are responsible for the teams to prepare for the hosting operation, securing the OVI stack from the transport and readying all of our pneumatic systems before we are ready to mate," DeArce said.
(https://img.novosti-kosmonavtiki.ru/349027.webp)
The Centaur stack is hoisted atop the Atlas V first stage. Photo by United Launch Alliance
After going up and into the building, the crane operator slowly lowered the OVI onto the top of the first stage where technicians were ready to install permanent bolts all the way around the interface to join the booster and the interstage adapter, which do not separate during launch.
"It is pretty awesome to be responsible for hoisting the OVI stack, you spend all of this time working on building up a third of the rocket and then in just one lift you get to see all of that work get placed on top of the booster, ready for the next round of testing before it is ready for launch."
Power up and system checkouts of the rocket are planned over the next several days to ensure all flight hardware is functioning as expected. That will clear the way for the encapsulated payload to be delivered to the VIF for its hoisting atop the rocket to complete the fully assembled, 196-foot-tall (59.7m) Atlas V 501 launch vehicle.
This will be the 99th flight of the Atlas V program and the 82nd to originate from the Cape.
https://spaceflightnow.com/launch-schedule/
ЦитироватьOctober 6 Atlas 5 • Project Kuiper Protoflight
Launch time: 2 p.m. EDT (1800 UTC)
Launch site: SLC-41, Cape Canaveral Space Force Station, Florida
The first two demonstration satellites for Amazon's Project Kuiper broadband constellation will launch on an Atlas 501 rocket. These satellites were originally scheduled to fly on the first Vulcan rocket.
https://www.ulalaunch.com/missions/next-launch/atlas-v-project-kuiper-protoflight
ЦитироватьATLAS V TO LAUNCH PROJECT KUIPER PROTOFLIGHT
A United Launch Alliance (ULA) Atlas V 501 rocket will launch the Protoflight mission for Amazon's Project Kuiper. Liftoff will occur from Space Launch Complex-41 at Cape Canaveral Space Force Station, Florida.
Launch Date: October 6, 2023Launch Window: Opens at 2 p.m. EDT
GO Atlas V! GO Centaur! GO Project Kuiper! GO Protoflight!
https://blog.ulalaunch.com/blog/protoflight-project-kuiper-payload-placed-atop-atlas-v
ЦитироватьProtoflight: Project Kuiper payload placed atop Atlas V (https://blog.ulalaunch.com/blog/protoflight-project-kuiper-payload-placed-atop-atlas-v)
September 29, 2023
(https://img.novosti-kosmonavtiki.ru/349461.webp)
The Kuiper payload is hoisted atop the Atlas V rocket. Photo by United Launch Alliance
A United Launch Alliance (ULA) Atlas V rocket stands ready to launch prototype spacecraft for Amazon's Project Kuiper, a satellite network that will provide fast, affordable broadband to unserved and underserved communities around the world.
The encapsulated payload arrived at the Vertical Integration Facility at Cape Canaveral Space Force Station, Florida, on Sept. 28 for hoisting atop the launch vehicle.
Liftoff is scheduled for Oct. 6 with a launch window opening at 2 p.m. EDT (1800 UTC) (https://www.ulalaunch.com/missions/next-launch/atlas-v-project-kuiper-protoflight). The available window maximizes the probability of launching on a given day by allowing our team to work around any weather or other issues.
(https://img.novosti-kosmonavtiki.ru/349463.webp)
The Protoflight mission payload arrives at the VIF. Photo by United Launch Alliance
Standing nearly 20 stories tall, the Atlas V 501 rocket will deliver its payload into low Earth orbit as part of the Project Kuiper Protoflight mission for Amazon. The prototypes of the final Kuiper satellite design will allow Amazon to test its technology in space before beginning full-scale production launches next year.
The Protoflight launch is also the first mission in a broader partnership between ULA and Amazon to help deploy Project Kuiper's low Earth orbit (LEO) satellite constellation. Amazon will use nine launches of the Atlas V rocket and 38 launches of Vulcan Centaur to deploy its satellites. The prototype mission gives ULA and Amazon practical experience working together ahead of full-scale launches, including processing procedures, payload integration and mission management.
Atlas V will place two spacecraft -- Kuipersat-1 and Kuipersat-2 -- in 311-mile (500-km) orbits with an inclination of 30 degrees. Centaur uses a single burn to place the satellites into their desired perch and deploys them approximately 18 minutes after liftoff, at which point Amazon will assume control of the satellites and proceed with testing.
The Protoflight mission will add real-world data from space to Amazon's results from its extensive lab testing, fieldwork and simulation, and help Amazon finalize plans ahead of a full-scale satellite deployment beginning in 2024.
This will be the 99th flight of the Atlas V rocket and 8th in the 501 configuration that uses no side-mounted solid rocket boosters. The 501 made its first launch in April 2010 and has flown five times carrying the X-37B Orbital Test Vehicle and twice for the National Reconnaissance Office.
(https://img.novosti-kosmonavtiki.ru/349464.webp)
The encapsulated payload is maneuvered into the VIF. Photo by United Launch Alliance
The two-stage rocket features a single RL10A-4-2 engine on the Centaur upper stage and encapsulates the spacecraft in 5.4-meter-diameter (17.7-foot) Out-of-Autoclave (OoA) composite payload fairing that is 68 feet (20.7 meters) in length.
Inside the payload fairing, a mission-unique payload stack architecture, assembled by ULA, uses a series of payload adapters to form a dispensing tower to accommodate the satellites for their ride into space.
This Atlas V rocket, designated AV-104, is 196 feet (59.7 meters) tall and will weigh 748,149 pounds (339,355 kg) once fully fueled for liftoff.
Leaving the pad with 860,200 pounds (3.83 meganewtons) of thrust from the kerosene-fueled first stage main engine, the Atlas V will perform pitch and yaw maneuvers to align with an easterly heading along a flight azimuth of 96 degrees.
This will be ULA's 158th launch and 20th in service to a commercial client.
https://www.ulalaunch.com/missions/next-launch/atlas-v-project-kuiper-protoflight
Внешний вид КА неизвестен, профиль выведения закрыт с момента отделения разгонника.
Коммерческая тайна "амазона"?
Цитата: V.V. от 05.10.2023 12:21:36Внешний вид КА неизвестен
Вот отсюда (https://space.skyrocket.de/doc_sdat/kuipersat-1.htm) можно заключить, что КА не очень большие:
ЦитироватьThe first two satellites were to be orbited on two ABL RS1 (https://space.skyrocket.de/doc_lau/rs1.htm) rockets in late 2022. Due to launch vehicle delays, the satelltes were remanifested on the maiden Vulcan Centaur VC2S (https://space.skyrocket.de/doc_lau/vulcan.htm) in 2023. Due to further delays caused by Vulcan, it was decided to move both satelltes to a dedicated Atlas-5(501) (https://space.skyrocket.de/doc_lau_det/atlas-5-501.htm).
Поскольку RS1, на которой они первоначально планировались, тоже небольшая. У неё заявленная грузоподъемность на НОО - 1350 кг, на ССО - 970 кг (но ни разу ничем не подтверждённая, очевидно что масса двух планировавшихся для вывода на ней КА - меньше и скорее всего заметно) и обтекатель диаметром 1.8 метра.
погода:
Launch Weather Officer Melody Lovin from the @SLDelta45
meteorology team predicts an 80 percent chance of acceptable conditions for Friday's #AtlasV launch of the #Amazon #ProjectKuiper #Protoflight. Launch window opens at 2pmEDT (1800 UTC).
Full details: http://bit.ly/av_projectkuip
1. орбита 500км наклонением 30грд
2. половину группировки, состоящей из 3236 спутника, необходимо вывести до июля 2026г.
3. по планам под Койпер было зарезервировано ещё 8 Атласов (к этому)
4. судя по упаковке, спутники не плоские, как Старлинки
5. ураган Филиппэ рядом - но погода 80%
ЦитироватьULA @ulalaunch
The Launch Readiness Review is GO for Friday's launch of #AtlasV on the #ProjectKuiper #Protoflight mission to place prototypes of #Amazon's satellite design into space for real-world testing. Launch time is 2:00pmEDT (1800 UTC).
Updates and webcast: http://bit.ly/av_projectkuiper_protoflight
(https://img.novosti-kosmonavtiki.ru/349650.jpg)
https://www.youtube.com/watch?v=HhxpuiOUZIcЦитироватьhttps://www.youtube.com/watch?v=HhxpuiOUZIc
Oct. 6 LIVE Broadcast: Atlas V Project Kuiper Protoflight
(https://img.novosti-kosmonavtiki.ru/349651.jpg) (https://www.youtube.com/@unitedlaunchalliance) United Launch Alliance (https://www.youtube.com/@unitedlaunchalliance)
A United Launch Alliance (ULA) Atlas V 501 rocket is launching the Protoflight mission for Amazon's Project Kuiper. Liftoff will occur from Space Launch Complex-41 at Cape Canaveral Space Force Station, Florida. ULA's Atlas V rocket will deliver two prototype satellites into low Earth orbit (LEO) for Project Kuiper, a LEO satellite network that will provide fast, affordable broadband to unserved and underserved communities around the world.
Launch Date: Oct. 6, 2023
Launch Window: Opens at 2 p.m. EDT
погода: Atlas V CA-01 (Kuiper Protoflight) L-1 Day Forecast - 6 Oct Launch
6 Oct 2023 = 70%
7 Oct 2023 = 85%
ЦитироватьULA @ulalaunch
NEW LAUNCH TIME. Launch Director James Whelan has instructed the team to coordinate a new launch time of 2:06pmEDT (1806 UTC). Live launch blog and webcast: http://bit.ly/av_projectkuiper_protoflight
21:06 мск.
Пошла трансляция
а11.jpg
https://www.youtube.com/watch?v=kKCh5qfLyW0Цитироватьhttps://www.youtube.com/watch?v=kKCh5qfLyW0
LAUNCH: Amazon Project Kuiper Protoflight aboard ULA Atlas V 501
(https://img.novosti-kosmonavtiki.ru/341856.jpg) (https://www.youtube.com/@NASASpaceflight) NASASpaceflight (https://www.youtube.com/@NASASpaceflight)
Ещё одна. С обратным отсчётом.
На NSF пишут, что Центавр будет уведен на геолиоцентрическую.
Разменяли Т-4 мин.
а12.jpg
Пуск!
а13.jpg
Два небольших аппарата - и Атлас-5 с пятиметровым ГО. Странно это все.
20231004_001520.jpg
FrLrXrIWIAIjJr9.jpg
ЦитироватьULA @ulalaunch
Successful Atlas staging is confirmed. The first stage of flight completed with engine cutoff and separation of #AtlasV's common core booster. The Centaur upper stage continues the ascent by accelerating the #Amazon #ProjectKuiper payload into LEO. http://bit.ly/av_projectkuiper_protoflight
Атлас вывел Центавр с ПН на промежуточную орбиту.
Цитата: полтора_землекопа от 06.10.2023 21:11:40Странно это все.
Угу. В моем понимании это выглядит так:
Амазон заранее купил места для запуска Койперов на Атласе, Вулкане и RS1 (это факт).
Хотели первую тестовую пару пускать на RS1 (что логично), но в конце прошлого года перенесли на Вулкан с "попутчиками" (это тоже факт, но уже несколько странный - с изделия которое еще не летает но вот-вот, на изделие, которое полетит непонятно когда... хотя в конце прошлого года определенный оптимизм по поводу Вулкана был. а по поводу RS1 возможно был какой-то инсайд, которого мы не знаем).
При этом на сегодня RS1 один раз попыталась и не смогла, когда будет следующая - непонятно. Вулкан еще не летал, едет вправо и какие там перспективы - бог весть.
Дальше домыслы:
Время-то поджимает - разрешение на частотно-орбитальный ресурс отрабатывать надо, чтобы не отобрали и все такое, опять же акционеры-инвесторы могут начать недоумевать. Так что два первых экземляра (а других готовых к запуску видимо и нет и пока эти два не испытают по полной программе- и не будет) надо хоть на чем-то запустить, а поскольку за Атласы уже уплочено (причем они полностью выкуплены под Койперы), а ничего другого из предоплаченного все так и нет, то остается на Атласе. Ну а попутчиков, видимо, то ли не нашли, то ли решили не искать, чтобы не пришлось еще затягивать время.
Если еще раз обратиться к тому, что пишут на NSF (https://forum.nasaspaceflight.com/index.php?topic=59333.msg2511626#msg2511626):
ЦитироватьThe Atlas V 501 will be launched on an easterly trajectory from Eastern Range (ER) Launch Complex 41 (SLC-41). A single Centaur main engine burn with a Guidance Commanded Shutdown (GCS) will place the two spacecraft into a Low Earth Orbit (500 km circular at 30.0 deg inclination). Spacecraft separation will occur at approximately 18 minutes after liftoff. After separation the Centaur coasts for approximately 15 minutes before turning to the second burn attitude. The second burn (which occurs at approximately 40 minutes after liftoff) will place the Centaur into a hyperbolic trajectory to meet upper stage disposal requirements. Centaur end of mission occurs approximately 81 minutes after liftoff.
- то отделение двух Койперсатов через 18 минут после КП. После отделения ПН пассивный участок примерно 15 минут, затем выполняется 2-е включение Центавра. Второе включение - примерно через 40 минут после КП выведет Центавр на гелиоцентрическую траекторию. Миссия Центавра завершается спустя 81 минуту после КП.
Что-то как-то не суммируется оно.
Т+18 минут - отделение двух Койперсатов
Т+32 мин - второе включение Центавра
Т+40 мин - завершение 2-го включения Центавра
или же:
Т+18 минут - отделение двух Койперсатов
Т+25 мин - отделение незадекларированной
основной ПНТ+40 мин - второе включение Центавра
??
ЦитироватьULA @ulalaunch
MISSION SUCCESS! United Launch Alliance's #AtlasV has launched two prototypes of #Amazon's #ProjectKuiper broadband satellite constellation.
Success #158 for ULA: https://newsroom.ulalaunch.com/releases/united-launch-alliance-successfully-launches-first-mission-in-partnership-with-amazon
Миссия успешна.
https://tass.ru/kosmos/18934521
ЦитироватьВ США запустили прототипы спутников Amazon
НЬЮ-ЙОРК, 6 октября. /ТАСС/. Американская компания United Launch Alliance (ULA) осуществила запуск ракеты-носителя Atlas V с двумя прототипами спутников для миссии Amazon Kuiper Protoflight.
Запуск был осуществлен с космодрома на мысе Канаверал (штат Флорида) в 14:06 по местному времени (21:06 мск - прим. ТАСС). Трансляция велась на сайте ULA. Как поясняет Amazon, проект по расширению доступа к широкополосной связи Project Kuiper предусматривает вывод на околоземную орбиту группировку из 3 236 спутников.
"Мы провели масштабные испытания в нашей лаборатории и в высшей степени уверены в конструкции нашего спутника, но замены испытаниям на орбите нет. Amazon впервые выводит спутники в космос, мы многое извлечем из этого, независимо от того, как пройдет миссия", - заявил вице-президент по технологиям проекта Project Kuiper Раджив Бадьял накануне запуска.Спойлер
Пока не уточняется, удалось ли вывести прототипы спутников на заданные орбиты.
Ракета Atlas V принадлежит к семейству американских космических носителей Atlas, созданных на базе одноименной межконтинентальной баллистической ракеты (находилась на вооружении США до 1965 года). Она была разработана корпорацией Lockheed Martin в конце 1990-х годов по заказу Минобороны США в рамках программы EELV (Evolved Expendable Launch Vehicle - "Усовершенствованная одноразовая ракета-носитель").
| NORAD_CAT_ID | OBJECT_NAME | OBJECT_ID | EPOCH | INCLINATION | PERIOD | APOGEE | PERIGEE |
| 58013 | TBA | 2023-154A | 06.10.2023 19:19 | 30.00 | 94.49 | 504.5 | 482.8 |
| 58014 | TBA | 2023-154B | 06.10.2023 19:19 | 29.99 | 94.55 | 507.1 | 486.7 |
| 58015 | TBA | 2023-154C | 06.10.2023 18:46 | 29.95 | 94.59 | 511.7 | 485.6 |
Поименовали
Цитировать2023-154A 58013 KUIPER-P2 94.45 29.99 503 481 0.0016116 0.35
2023-154B 58014 KUIPER-P1 94.47 29.99 503 483 0.0014902 0.35
2023-154C 58015 ATLAS 5 CENTAUR R/B 94.59 29.95 512 486 0.0019000 8.10
https://celestrak.org/NORAD/elements
А ступень ещё и потеряли! 8)
Отманеврировали и встали в 5° друг за другом.
https://celestrak.org/NORAD/elements/
Цитировать2023-154A 58013 KUIPER-P2 94.38 29.99 499 478 0.0015010
2023-154B 58014 KUIPER-P1 94.38 29.99 499 478 0.0014900
Апогей и перигей одинаковые, а эксцентриситет орбит разный. ::) 8)
https://vk.com/spacex?w=wall-41152133_476502
ЦитироватьКомпания Amazon сообщила о полном успехе испытания прототипов спутников Project Kuiper
"Спутники работают блестяще. Мы смогли проверить и получить все необходимые данные. Все системы, подсистемы и варианты использования, для которых мы разработали спутники, работают так, как и задумано. Через тридцать дней после запуска мы транслируем видео в формате 4K, совершаем видео звонки и делаем покупки на Amazon", — сказал вице-президент Project Kuiper по технологиям Раджив Бадьял.
При этом в Amazon отказались называть конкретные скоростные характеристики, сославшись на то, что это прототипы и сложно говорить об итоговой производительности полноценных спутников...
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Selfie mode: Activated. Except this time, from space.
Check out this cool image captured on board KuiperSat-1, one of @ProjectKuiper's two prototype satellites currently in orbit around planet Earth.
(https://img.novosti-kosmonavtiki.ru/352901.jpg)