Friday, January 27, 2023

SpaceX launch from Florida; California launch delayed – Spaceflight Now

Watch our live coverage of the SpaceX Falcon 9 rocket countdown and launch at 11:50 p.m. EST (0450 GMT) from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida with OneWeb Internet’s 40 satellites. follow us checkered cloth,

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SpaceX is counting down to the launch of a Falcon 9 rocket from Cape Canaveral at 11:50 am EST (04:50 GMT Tuesday) with 40 internet satellites for OneWeb. The Falcon 9 booster will return to Cape Canaveral for a landing eight minutes later.

SpaceX delayed the launch of a separate Falcon 9 rocket from Vandenberg Space Force Base in California on Monday night because of bad weather. The mission was scheduled to launch from Cape Canaveral exactly 35 minutes before OneWeb’s mission.

The weather forecast for Florida is most favorable for Monday night, with a more than 90% chance of good weather for the launch of 40 OneWeb satellites.

The SpaceX launch team, working from a control center outside the gates of the Cape Canaveral Space Force Station, will begin loading super-cooled condensed kerosene and liquid oxygen propellant into the Falcon 9 vehicle in T-minus 35 minutes.

Helium pressure will also flow into the rocket in the last half hour of the countdown. In the final seven minutes before takeoff, the Merlin Falcon 9 main engines will be thermally conditioned for flight through a process known as “resting”. The Falcon 9 field protection and guidance system will also be configured for launch.

SpaceX’s Falcon 9 rocket at Pad 40 in preparation for launch of the OneWeb 16 mission. credit: Michael Caine/Spaceflight Now/Coldlife Photography

After liftoff, the Falcon 9 rocket will shoot down 1.7 million pounds of thrust produced by nine Merlin engines. The launch will head southeast from California over the Pacific Ocean west of Baja California to aim for an orbit inclined 70 degrees to the equator. Departing from Platform 40 at Cape Canaveral, Falcon 9 will initially head southeast, then turn south to fly parallel to Florida’s east coast, aiming for an 87-degree inclined polar orbit.

The launcher will exceed the speed of sound in about one minute, and will shut down its nine main engines about two and a half minutes after liftoff.

The booster stage will separate from the Falcon 9 upper stage, then cold gas control thrusters will fire in pulses, expanding titanium grid fins to help guide the vehicle back into the atmosphere. The light weight of OneWeb’s 40 satellites will allow the Falcon 9 propellant to allocate enough fuel to return to the launch site, requiring an additional burn to return to Cape Canaveral.

There is also a rescue ship on station in the Atlantic Ocean to recover Falcon 9 payloads after rocket disposal.

20221208Oneweb15
A file image from a previous mission shows the 40 OneWeb satellites mounted in the hub before being placed inside the SpaceX payload fairing. Credits: Oneweb

The mission will target an orbit 373 miles high and 87 degrees inclined with respect to the equator. The Falcon 9 upper stage will launch 40 OneWeb satellites approximately 59 minutes after liftoff. The satellites will use a xenon-powered propulsion system to reach an altitude of 745 miles (1,200 kilometers) above Earth.

OneWeb’s launch from Cape Canaveral will be the second of four SpaceX missions planned for the broadband internet provider, which launched atop a Russian Soyuz rocket last year following Russia’s invasion of Ukraine. Within weeks, OneWeb signed new contracts with SpaceX and New Space India Limited, or NSIL, to launch Falcon 9 and Indian GSLV Mk.3 rockets to complete construction of the company’s satellite network.

The 40 satellites launched aboard the Falcon 9 rocket will bring the total number of OneWeb spacecraft to 544. OneWeb needs 588 operational satellites to complete its first-generation broadband network, or a total of 650 spacecraft when counting replacement pieces.

Adding more repeater stations to the constellation expands the reach of the network. OneWeb already provides Internet services to communities in Alaska, Canada and northern Europe where terrestrial fiber connections are not available. The 40 satellites launched Monday night will help bring Southern Europe, the United States, North Africa, the Middle East, Japan and parts of Australia and India within OneWeb’s reach.

OneWeb’s contract with SpaceX came as a surprise to many satellite industry observers because OneWeb is an indirect competitor in the broadband market. SpaceX sells Starlink directly to consumers, while OneWeb sells to businesses, ISPs, shipping companies and airlines to provide connectivity to businesses or entire communities.

Missile: Falcon 9 (B1076.2)

Payload: 40 OneWeb satellites (OneWeb 16)

Launch Sites: SLC-40, Cape Canaveral Space Station, Florida

Opening Dates: January 9, 2023

lunch time: 23:50:17 (04:50:17 GMT)

Weather Forecast: More than 90% chance of clear weather at Cape Canaveral

Boost Recovery: Landing Zone 1 at the Cape Canaveral Space Station

Azimuth Projection: southeast, then south of Cape Canaveral

Target Class: 373 mi (600 km), 87 degree tilt

OneWeb 16 launch schedule:

  • T+00:00: Fly
  • T+01:12: Maximum Air Pressure (Max-Q)
  • T+02:18: Main Engine Cutoff First Stage (MECO)
  • T+02:21: Phase separation
  • T+02:28: Second stage engine ignition
  • T+02:34: Stage 1 boosts backburner ignition
  • T+03:21: First stage boosts afterburn cut
  • T+03:34: Silence
  • T+06:20: First stage input burnout ignition
  • T+06:36: 1st stage input afterburner shutdown
  • T+07:27: First stage burner on
  • T+07:56: First stage landing
  • T+08:32: 2nd stage engine shutdown (DRY 1)
  • T+55:14: Second stage engine reset (SES 2)
  • T+55:17: Second stage engine shutdown (SECO 2)
  • T+58:49: Separation of the first OneWeb satellites
  • T+01:35:17: Another chapter of the OneWeb satellite

Mission Stats:

  • Falcon 9’s 196th launch since 2010
  • 205th release in the Falcon family since 2006
  • Second launch of Falcon 9 booster B1076
  • SpaceX launches 168 from Florida’s Space Coast
  • 109 Falcon 9 launches from Platform 40
  • 164th overall pitch from the backboard 40
  • Flight 135 Falcon 9 booster repurposed
  • Second SpaceX launch of OneWeb
  • OneWeb’s 16th Launch
  • Falcon 9’s second launch in 2023
  • SpaceX’s second launch in 2023
  • Second orbital launch from Cape Canaveral in 2023

Nation World News Desk
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