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Proton rocket to launch two Russian broadcasting satellites Monday

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Two Russian telecommunications satellites are ready to ride a Proton rocket and Breeze M upper stage into a high-altitude orbit after launch Monday from the Baikonur Cosmodrome.

The mission is set for liftoff at 7:07 a.m. EST (1207 GMT) Monday, and will last 18 hours from launch through separation of the final spacecraft, one of the longest ascents ever for a Russian rocket.

Russian teams previously planned to launch the mission Sunday, but discovered a technical issue with the Breeze M upper stage after rolling the Proton rocket to the launch pad at Baikonur on Dec. 9. Technicians returned the rocket to a nearby hangar for troubleshooting, and transferred the Proton to the pad at the Site 200 complex again Saturday in preparation for a launch attempt Monday.

The Russian Express AMU3 and Express AMU7 communications satellites are mounted one top of the other inside the Proton rocket’s payload shroud. The two spacecraft are designed to operate for the Russian Satellite Communications Co., a government-backed enterprise that manages Russia’s civilian telecom satellite fleet.

The new satellites will provide digital TV and radio broadcast services, high-speed internet connectivity, and other data transmission capacity over Russia and neighboring countries, according to RSCC.

The 191-foot-tall (58.2-meter) Proton rocket will ignite its six RD-276 main engines — consuming a toxic mix of hydrazine and nitrogen tetroxide propellants — and fire away from the historic Baikonur spaceport at 5:07 p.m. local time Monday, just after sunset. Heading northeast, the rocket’s engines will generate 2.5 million pounds of thrust for the first two minutes of flight.

After the first stage jettisons, the second stage and third stage will fire in succession to send the Breeze M upper stage and the dual comsat payloads on a ballistic suborbital trajectory.

Then the Breeze M will take control of the rest of the marathon mission, firing its main engine five times to gradually reshape its orbit to ultimately reach an elliptical path around Earth ranging in altitude between 11,600 miles (18,700 kilometers) and nearly 32,900 miles (52,900 kilometers).

The first Breeze M burn is programmed to place the Express AMU3 and Express AMU7 spacecraft into a preliminary low-altitude parking orbit. The additional maneuvers over the 18-hour launch sequence will raise the orbit higher and nudge the satellites closer to their final operating positions over the equator.

A Proton rocket is raised vertical on the launch pad at the Baikonur Cosmodrome. Credit: Roscosmos

The 4,365-pound (1,980-kilogram) Express AMU7 satellite, situated in the upper position of the dual-payload stack, will separate first from the Breeze M upper stage at 12:57 a.m. EST (0557 GMT) Tuesday, according to a mission timeline released by Roscosmos, the Russian space agency.

The Express AMU3 spacecraft, with a launch weight of 4,740 pounds (2,180 kilograms), will be released by the Breeze M upper stage at 1:14 a.m. EST (0614 GMT).

Both satellites carry plasma thrusters to circularize their orbits at geostationary altitude more than 22,000 miles (nearly 36,000 kilometers) over the equator about two months after launch.

Express AMU7 is heading for a position at 145 degrees east longitude, where it will replace the Express A4 communications satellite launched in 2002. Express AMU3 will settle into a geostationary parking spot at 103 degrees east longitude, replacing Express AM3, which has been in service since 2005.

Both satellites were built by ISS Reshetnev, a Russian spacecraft manufacturer, and are designed for missions lasting at least 15 years. They carry telecommunications payloads supplied by Thales Alenia Space of France.

Express AMU3 and AMU7 are outfitted with C-band, Ku-band, and L-band transponders. From its more western position, Express AMU3 will cover Central Russia, Kazakhstan, and other parts of Central Asia. Express AMU7’s coverage zone is centered on Siberia and Russia’s Far East.

The Express AMU3 satellite is raised into position on the Proton rocket’s Breeze M upper stage. Credit: Roscosmos

The launch of Express AMU3 and AMU7 is one of few remaining flights confirmed to launch with Russia’s heavy-lift Proton rocket. It will mark just the second Proton launch this year, following the liftoff of Russia’s Nauka lab module in July heading for the International Space Station.

The launch Monday will be just the fourth Proton launch in nearly two years.

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Weather delays set up SpaceX for two weekend launches from Cape Canaveral

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A Falcon 9 rocket stands on pad 40 at Cape Canaveral Space Force Station Friday evening with Italy’s CSG 2 radar satellite. Credit: SpaceX

A blanket of thick clouds over Cape Canaveral Friday forced SpaceX to delay liftoff of a Falcon 9 rocket and an Italian radar remote sensing satellite until Saturday, setting up Florida’s Space Coast for launches on back to back days this weekend, with another SpaceX flight already booked on the range for Sunday.

SpaceX’s planned launch of Italy’s COSMO-SkyMed radar surveillance satellite was originally scheduled Thursday, but rain showers, low visibility, and thick clouds caused officials to call off the launch attempt before loading propellants into the Falcon 9 rocket.

Conditions at Cape Canaveral improved Friday, but a blanket of thick clouds remained in place over the spaceport. SpaceX scrubbed the launch with fewer than 10 minutes left in the countdown.

SpaceX will try again at 6:11 p.m. EST (2311 GMT) Saturday. The Falcon 9 rocket will fly south from Cape Canaveral’s Complex 40 launch pad over the Atlantic Ocean, tracking parallel to Florida’s east coast, then over the Straits of Florida, Cuba, and the Caribbean Sea to place the Italian radar imaging satellite into a polar orbit.

The reusable first stage booster, flying for the third time, will return to Landing Zone 1 at Cape Canaveral for a propulsive touchdown.

Meanwhile, SpaceX technicians a few miles to the north of pad 40 at Kennedy Space Center prepared late Friday to roll another Falcon 9 rocket out to pad 39A. That rocket is scheduled to take off at 2:39 p.m. EST (1939 GMT) Sunday with another batch of 49 satellites for SpaceX’s Starlink internet network.

A backup launch opportunity is available for the Starlink mission at 5:56 p.m. EST (2256 GMT) Sunday).

The target launch times are separated by 20 hours, 28 minutes, which would mark the shortest span between two orbital departures from Florida’s Space Coast since 1967.

As with all rocket launches, SpaceX will only pull off the feat if weather and technology cooperate.

There’s an 80% chance of good weather Saturday evening for SpaceX’s rescheduled launch of an Italian COSMO-SkyMed radar satellite, with a moderate risk of unfavorable winds aloft, according to the U.S. Space Force’s 45th Weather Squadron.

For Sunday’s mission, forecasters expect a 90% chance of acceptable launch weather on the Space Coast. There’s a moderate risk of out-of-limits wind and sea conditions downrange at the booster’s offshore landing zone near the Bahamas.

The primary weather concern Saturday evening is ground winds, which are forecast to be gusting from the northwest to near 25 mph following the arrival of a strong cold front, causing temperatures to drop to around 45 degrees Fahrenheit by launch time.

On Sunday, the only slight weather issue is with cumulus clouds, which could contribute to a lightning risk as the Falcon 9 climbs through the atmosphere.

SpaceX is slated to follow the launches this weekend with another Falcon 9 flight from Vandenberg Space Force Base in California on Wednesday, Feb. 2. The Falcon 9 rocket set for launch from California will carry a classified payload into orbit for the National Reconnaissance Office, the U.S. government’s spy satellite agency.

SpaceX has already launched three Falcon 9 missions since the start of the year, and is on pace to complete six Falcon 9 launches in less than four weeks, assuming the next three flights occur as scheduled.

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Live coverage: SpaceX counting down to launch of Italian radar satellite

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Live coverage of the countdown and launch of a SpaceX Falcon 9 rocket from pad 40 at Cape Canaveral Space Force Station, Florida. The mission will launch a radar remote sensing satellite for Italy’s COSMO-SkyMed Second Generation constellation. Follow us on Twitter.

SFN Live



SpaceX Webcast

SpaceX is set to launch an Italian radar remote sensing satellite aboard a Falcon 9 rocket Thursday from Cape Canaveral. The Falcon 9 is scheduled to launch at 6:11 p.m. EST (2311 GMT), weather permitting, and the first stage booster will return to Florida’s Space Coast eight minutes later for landing.

The mission will deploy a COSMO-SkyMed Second Generation, or CSG, radar surveillance satellite into a polar orbit for the Italian Space Agency and the Italian Ministry of Defense. There’s a 60% chance of good weather for launch at Cape Canaveral Thursday evening. The primary concerns are with ground winds and cumulus clouds.

The Falcon 9 rocket will be powered by a first stage booster modified from two previous missions as a side booster on SpaceX’s Falcon Heavy rocket. Both halves of the rocket’s payload shroud have flown to space three times on prior Falcon 9 missions.

Our live coverage will be available on this page beginning at 5 p.m. EST (2200 GMT).

The COSMO-SkyMed satellites provide regular day-and-night radar imaging of locations around the world for the civilian and military users. The Italian government oversees the radar constellation, which consists of four first-generation satellites now beyond their operating lifetimes, and the first in a new generation of COSMO-SkyMed spacecraft that launched in December 2019 on a Russian Soyuz rocket from French Guiana.

The radar imaging constellation gathers data for use by the Italian military, which employs the imagery to track maritime traffic in the Mediterranean Sea. Civilian applications include disaster response, agriculture monitoring, and climate change research.

This mission will mark the fifth launch from Cape Canaveral this year, following three SpaceX flights and a United Launch Alliance mission earlier this month.

Read our mission preview story for details.

ROCKET: Falcon 9 (B1052.3)

PAYLOAD: COSMO-SkyMed Second Generation FM2

LAUNCH SITE: SLC-40, Cape Canaveral Space Force Station, Florida

LAUNCH DATE: Jan. 27, 2022

LAUNCH TIME: 6:11 p.m. EST (2311 GMT)

LAUNCH WINDOW: Instantaneous

WEATHER FORECAST: 60% probability of acceptable weather

BOOSTER RECOVERY: Landing Zone 1 at Cape Canaveral Space Force Station, Florida

LAUNCH AZIMUTH: South-southeast, then south

TARGET ORBIT: Approximately 384 miles (619 kilometers), 97.9 degrees inclination

LAUNCH TIMELINE:

  • T+00:00: Liftoff
  • T+01:12: Maximum aerodynamic pressure (Max-Q)
  • T+02:15: First stage main engine cutoff (MECO)
  • T+02:19: Stage separation
  • T+02:27: Second stage engine ignition
  • T+02:32: Boost-back burn begins (three engines)
  • T+03:20: Boost-back burn ends
  • T+03:45: Fairing jettison
  • T+06:11: First stage entry burn begins (three engines)
  • T+06:32: First stage entry burn ends
  • T+07:22: First stage landing burn begins
  • T+07:26: First stage landing
  • T+08:44: Second stage engine cutoff (SECO 1)
  • T+56:01: Second stage engine restart
  • T+56:04: Second stage engine cutoff (SECO 2)
  • T+1:00:05: COSMO-SkyMed Second Generation FM2 separation

MISSION STATS:

  • 138th launch of a Falcon 9 rocket since 2010
  • 146th launch of Falcon rocket family since 2006
  • 3rd launch of Falcon 9 booster B1052
  • 122nd Falcon 9 launch from Florida’s Space Coast
  • 79th Falcon 9 launch from pad 40
  • 134th launch overall from pad 40
  • 82nd flight of a reused Falcon 9 booster
  • 80th Thales Alenia Space-built satellite launched by SpaceX
  • 1st SpaceX mission for Italian Space Agency
  • 4th Falcon 9 launch of 2022
  • 4th launch by SpaceX in 2022
  • 5th orbital launch based out of Cape Canaveral in 2022

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SpaceX gives converted Falcon Heavy side booster new life

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A SpaceX Falcon 9 rocket, with a booster stage converted from two previous Falcon Heavy missions, rolls through NASA’s Kennedy Space Center on Dec. 8 toward its launch pad. Credit: Michael Cain / Spaceflight Now / Coldlife Photography

A converted SpaceX side booster that flew on two Falcon Heavy missions in 2019 will launch again Thursday as the first stage of a single-stick Falcon 9 rocket set to lift off from Cape Canaveral with an Italian radar imaging satellite.

Liftoff is set for 6:11 p.m. EST (2311 GMT) Thursday from pad 40 at Cape Canaveral Space Force Station in Florida with a COSMO-SkyMed Second Generation radar surveillance satellite for the Italian government.

The first stage booster assigned to the Falcon 9 mission mission is designated B1052 in SpaceX’s fleet. Tracking booster assignments for SpaceX launches has become a pastime for space enthusiasts. But with SpaceX’s rocket reuse program becoming more routine, the first stage used on most Falcon flights has become an afterthought, unless it’s setting a new record.

But the booster awaiting launch Thursday is noteworthy. The 15-story-tall rocket stage was previously fitted with an aerodynamic nose cone and attachment fixtures when it flew as a side booster mounted to the side of a Falcon Heavy core stage on two missions in 2019.

SpaceX created the Falcon Heavy by connecting three modified Falcon 9 booster stages together, tripling the rocket’s total power at liftoff. Each Falcon booster generates 1.7 million pounds of thrust from its nine Merlin engines, giving the Falcon Heavy more than 5 million pounds of thrust, more than any other launch vehicle currently in operation.

A Falcon Heavy rocket, with B1052 as a side booster, launched April 12, 2019, with the Arabsat 6A communications satellite. Credit: Walter Scriptunas II / Spaceflight Now

The Falcon Heavy rocket has flown three times, most recently with the Arabsat 6A communications satellite in April 2019 and the U.S. military’s Space Test Program-2 rideshare mission in June 2019. Both missions flew with Booster No. 1052 as a strap-on rocket stage.

The STP-2 mission flew with the same pair of side boosters as Arabsat 6A. On both missions, the side boosters fired more than two minutes during the climb into space, then returned to SpaceX’s rocket recovery zones at Cape Canaveral for nearly simultaneous landings.

SpaceX attempted to recover the Falcon Heavy core stages on both missions aboard a downrange landing platform in the Atlantic Ocean. But both cores were lost, as was the center stage on the first Falcon Heavy demonstration launch in February 2018.

The first Falcon Heavy rocket launched with a pair of side boosters that previously flew as the first stages on Falcon 9 rockets. SpaceX modified the boosters for the Falcon Heavy mission, and they landed back at Cape Canaveral and never flew again.

SpaceX officials have said Falcon Heavy side boosters and Falcon 9 first stages are interchangeable, but Falcon Heavy core stages carry additional structural stiffeners to support the load of two side-mounted boosters. That makes each center core specifically built for the Falcon Heavy.

The launch Thursday with Italy’s COSMO-SkyMed radar satellite will be the first time SpaceX has flown a rocket converted in the other direction, from a Falcon Heavy to a Falcon 9. SpaceX’s ground team removed the former side booster’s nose cone and other unique hardware for its new role in the Falcon 9 fleet.

Two reusable rocket boosters, including B1052, land at Cape Canaveral Air Force Station after the successful launch of SpaceX’s Falcon Heavy rocket with the Arabsat 6A satellite April 12, 2019. (U.S. Air Force photo by James Rainier)

Photographers at the Kennedy Space Center’s press site first spotted the converted Falcon first stage Dec. 8 as it passed through the spaceport from SpaceX’s rocket processing hangar on the way to one of the company’s seaside launch pads.

The sighting of the booster’s serial number — the No. 52 is painted in small print on the side of the airframe — suggested SpaceX had modified the former Falcon Heavy side booster for use as a Falcon 9 first stage.

But it wasn’t clear which mission would use the booster until SpaceX confirmed the assignment of B1052 to the COSMO-SkyMed satellite’s launch in a posting to the company’s website Thursday, just hours before the scheduled liftoff time.

Like its previous two flights, the booster will fire for more than two minutes before shutting down its Merlin engines and flipping around to fly back to Cape Canaveral. Touchdown on Landing Zone 1, located about 6 miles (9 kilometers) south of the Complex 40 launch pad, is expected nearly eight minutes after liftoff.

The Falcon 9 rocket’s second stage — brand new as it is for all Falcon missions — will direct the COSMO-SkyMed satellite along a southerly trajectory parallel to Florida’s east coast, targeting an orbit that takes the spacecraft over Earth’s poles.

It will be SpaceX’s second launch into polar orbit from Cape Canaveral this month, following a corridor that was unused from 1969 until 2020. Most polar orbit launches from the United States take off from Vandenberg Space Force Base, which offers a clear range over the Pacific Ocean to the south, without requiring a rocket to perform a steering maneuver after liftoff to fly around land masses.

SpaceX Booster No. 1052 rolls through NASA’s Kennedy Space Center on the way to its launch pad Dec. 8. Credit: Michael Cain / Spaceflight Now / Coldlife Photography

The official launch weather forecast for Thursday evening calls for a 60% chance of favorable conditions for liftoff at Cape Canaveral Space Force Station. The primary weather concerns are with ground winds and cumulus clouds.

The COSMO-SkyMed continues a busy month at Cape Canaveral, which has already hosted four rocket launches since Jan. 6, including three by SpaceX. Another SpaceX launch is scheduled Saturday from pad 39A at Kennedy Space Center, when a Falcon 9 rocket is set to deliver another batch of Starlink internet satellites into orbit.

SpaceX will continue its rapid-fire launch cadence Feb. 2 with a Falcon 9 mission from Vandenberg for the National Reconnaissance Office, the U.S. government’s spy satellite agency.

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