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#### SpaceX lifts Canadian communication firm's Telstar19 VANTAGE satellite into duty - The Daily Breeze

SpaceX lobbed a Telstar19 VANTAGE satellite into a geostationary transfer orbit early Sunday morning, in the first of two planned missions for the Hawthorne-based rocketbuilder this week. Elon Musk's company broadcast the launch of the Block 5 Falcon 9 ...

#### SpaceX has a successful second launch of its Block 5 rocket - Ars Technica

Update: At the top of its launch window, the Falcon 9 rocket took off early Sunday at 1:50am ET (05:50 UTC) and lofted its large satellite payload into geostationary transfer orbit. Meanwhile, the first stage of the rocket made a safe landing on a ...

#### SpaceX Falcon 9 Sets New Record with Successful Launch of Heaviest Communications Satellite Into Orbit - Interesting Engineering

SpaceX set a new record today by successfully launching communications satellite Telstar 19 VANTAGE to a geostationary transfer orbit (GTO). The launch marks the heaviest payload that a Falcon 9 has carried to a GTO.

#### SpaceX delivers for Telesat with successful early morning launch - Spaceflight Now

Several satellite operators have apparently accepted the arrangement, including Telesat and the Spanish telecom company Hispasat, which agreed with SpaceX to deploy one its satellites placed into a sub-geostationary transfer orbit in March. Telstar 19 ...

#### SpaceX launches Telstar 19 Vantage for Telesat - SpaceNews

The Block 5 Falcon 9 lifted off from Cape Canaveral Air Force Base in Florida at 1:50 a.m. Eastern, and deployed Telstar 19 Vantage into a geostationary transfer orbit almost 33 minutes later. The rocket's first stage landed on the sea-faring droneship ...

#### SpaceX Falcon 9 deploys Telstar 19V satellite to orbit - TASS

SpaceX in a tweet confirmed the successful deployment of the satellite to a geostationary transfer orbit. The Telstar 19 Vantage satellite, or Telstar 19V, will provide high-throughput communications to users in South America, the Caribbean, northeast ...

#### Telstar 19V communications satellite orbited by SpaceX Falcon 9 - SpaceFlight Insider

The rocket placed the Telesat-owned Telstar 19 VANTAGE communications satellite into a geostationary transfer orbit. A new Block 5 Falcon 9 stands at the launch pad with the Telstar 19 VANTAGE satellite encapsulated on top. Photo Credit: Scott Schilke ...

#### Updates: SpaceX launches Falcon 9 from Cape Canaveral, lands booster on drone ship - Florida Today

CONNECTTWEETLINKEDINCOMMENTEMAILMORE. SpaceX successfully launched a Falcon 9 rocket from Cape Canaveral Air Force Station at 1:50 a.m. Sunday and delivered the Telstar 19V satellite to a geostationary transfer orbit. The rocket's first stage ...

#### SpaceX Falcon 9 sets new record with Telstar 19V launch from SLC-40 - NASASpaceflight.com

It has a mass at launch of 7,080 kilograms (15,600 lb) – making it the heaviest payload that Falcon 9 has carried to geostationary transfer orbit. The Telstar 19V satellite will be positioned in geostationary orbit at a longitude of 63 degrees west ...

#### Record-setting commercial satellite awaits blastoff from Cape Canaveral - Spaceflight Now

Hauling such a heavy satellite toward a high-altitude geostationary transfer orbit would have required earlier versions of the Falcon 9 to devote all of their first stage propellants toward the launch, leaving insufficient leftover fuel for descent ...

#### Second Falcon 9 Block 5 static fires ahead of Telstar 19V launch - NASASpaceflight.com

Just over two weeks after their previous launch, SpaceX is again preparing their Falcon 9 rocket for launch, this time for the Telstar 19 Vantage mission to Geostationary Transfer Orbit (GTO). The second Block 5 Falcon 9 – which includes the unflown ...

#### SpaceX, ULA near-term manifests take shape, SpaceX aims for 1st RTLS at Vandenberg - NASASpaceflight.com

Telstar 19V has a 4-hour launch window, opening at 01:50 EDT and closing at 05:50 EDT (0550-0950 UTC), and will see the satellite lofted into Geostationary Transfer Orbit – resulting in a Block 5 booster recovery attempt on the East Coast ASDS Of ...

#### Arianespace aims for busy second half of 2018 - Spaceflight Now

The Ariane 5 rocket successfully returned to service April 5 after Arianespace introduced new quality control checks, placing the DSN-1/Superbird 8 and Hylas 4 telecom payloads into an on-target geostationary transfer orbit for Japanese and British ...

#### Japan launches reconnaissance satellite IGS-Radar 6 - SpaceTech Asia (press release) (blog)

The launch took place at Tanegashima Space Center using Mitsubishi Heavy Industries' (MHI) H-IIA No. 39, JAXA's medium-lift liquid-fuel launcher that can put up to 6,000kg into Geostationary Transfer Orbit (GTO) and approximately 15,000 kg into Low ...

#### Long March 3A rocket launches Fengyun-2H meteorological satellite - SpaceNews

HELSINKI, Finland – China on Tuesday launched the Fengyun-2H weather satellite, successfully inserting the near 1.4-metric-ton spacecraft into a geostationary-transfer orbit. The Long March 3A launch vehicle lifted off from Launch Complex 3 at the ...

#### SpaceX flies its 11th rocket of the year [Updated] - Ars Technica

Updated post: Shortly after midnight, local time, SpaceX's Falcon 9 rocket lifted off from Cape Canaveral. It then flew a nominal mission and deployed the SES-12 into a geostationary transfer orbit. The company's 11th mission of 2018 is successfully in ...

#### Watch: SpaceX rocket launches powerful communications satellite - Economic Times

SpaceX launched a Falcon-9 rocket from the Cape Canaveral Air Force Station in Florida early Monday. The rocket carried the SES-12 satellite to a Geostationary Transfer Orbit. SpaceX says the SES-12 satellite will allow telephone companies, mobile ...

#### FULL REPLAY: SpaceX Falcon 9 Rocket Lifts Off From Cape Canaveral On Picture Perfect Night - SpaceCoastDaily.com

BREVARD COUNTY, FLORIDA – SpaceX successfully launched the SES-12 satellite to a Geostationary Transfer Orbit (GTO) on Monday from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. Liftoff occurred at 12:45 a.m. ...

#### Falcon 9 conducts SES-12 night launch from Cape Canaveral - NASASpaceflight.com

SpaceX launched their sixth mission for telecommunications giants SES. The launch, using a flight-proven Falcon 9 rocket to deploy the SES-12 satellite into a geostationary transfer orbit, occurred at 00:45 Eastern on Monday, departing from SLC-40 at ...

#### Falcon 9 conducts static fire test ahead of the SES-12 mission - NASASpaceflight.com

This mission will involve the launch of the SES-12 satellite to a geostationary transfer orbit (GTO) from SLC-40 at Cape Canaveral Air Force Station. This specific rocket includes the flight-proven first stage core 1040, which launched the classified ...

A geosynchronous transfer orbit or geostationary transfer orbit is a Hohmann transfer orbit used to reach geosynchronous or geostationary orbit using high thrust chemical engines. It is a highly elliptical Earth orbit with an apogee of 42,164 km , or 35,786 km above sea level, which corresponds to the geostationary altitude. The period of a standard geosynchronous transfer orbit is about 10.5 hours. The argument of perigee is such that apogee occurs on or near the equator. Perigee can be anywhere above the atmosphere, but is usually restricted to a few hundred kilometers above the Earth's surface to reduce launcher delta-V requirements and to limit the orbital lifetime of the spent booster so as to curtail space junk. If using low-thrust engines such as electrical propulsion to get from the transfer orbit to geostationary orbit, the transfer orbit can be supersynchronous . This method however takes much longer to achieve due to the low thrust injected into the orbit. The typical launch vehicle injects the satellite to a supersynchronous orbit having the apogee above 42,164 km. The satellite's low thrust engines are thrusted continuously around the geostationary transfer orbits in an inertial direction. This inertial direction is set to be in the velocity vector at apogee but with an outer plane direction. The outer plane direction removes the initial inclination set by the initial transfer orbit while the inner plane direction raises simultaneously the perigee and lowers the apogee of the intermediate geostationary transfer orbit. In case of using the Hohmann transfer orbit, only a few days are required to reach the geosynchronous orbit. By using low thrust engines or electrical propulsion, months are required until the satellite reaches its final orbit.

A geosynchronous transfer orbit or geostationary transfer orbit (GTO) is a Hohmann transfer orbit used to reach geosynchronous or geostationary orbit using high thrust chemical engines. It is a highly elliptical Earth orbit with an apogee of 42,164 km (26,199 mi), or 35,786 km (22,236 mi) above sea level, which corresponds to the geostationary (GEO) altitude. The period of a standard geosynchronous transfer orbit is about 10.5 hours. The argument of perigee is such that apogee occurs on or near the equator. Perigee can be anywhere above the atmosphere, but is usually restricted to a few hundred kilometers above the Earth's surface to reduce launcher delta-V (${\displaystyle \Delta }$V) requirements and to limit the orbital lifetime of the spent booster so as to curtail space junk. If using low-thrust engines such as electrical propulsion to get from the transfer orbit to geostationary orbit, the transfer orbit can be supersynchronous (having an apogee above the final geosynchronous orbit). This method however takes much longer to achieve due to the low thrust injected into the orbit. The typical launch vehicle injects the satellite to a supersynchronous orbit having the apogee above 42,164 km. The satellite's low thrust engines are thrusted continuously around the geostationary transfer orbits in an inertial direction. This inertial direction is set to be in the velocity vector at apogee but with an outer plane direction. The outer plane direction removes the initial inclination set by the initial transfer orbit while the inner plane direction raises simultaneously the perigee and lowers the apogee of the intermediate geostationary transfer orbit. In case of using the Hohmann transfer orbit, only a few days are required to reach the geosynchronous orbit. By using low thrust engines or electrical propulsion, months are required until the satellite reaches its final orbit.

The inclination of a GTO is the angle between the orbit plane and the Earth's equatorial plane. It is determined by the latitude of the launch site and the launch azimuth (direction). The inclination and eccentricity must both be reduced to zero to obtain a geostationary orbit. If only the eccentricity of the orbit is reduced to zero, the result may be a geosynchronous orbit but will not be geostationary. Because the ${\displaystyle \Delta }$V required for a plane change is proportional to the instantaneous velocity, the inclination and eccentricity are usually changed together in a single manoeuvre at apogee where velocity is lowest.

### What is Geostationary Transfer Orbit (GTO)? Why do SpaceX and ULA use it?

Today's question is: What is the difference between a geostationary transfer orbit and a geostationary orbit? Why do the Falcon 9 and Atlas V use GTO and how ...

### GTO to GEO transfer

This video shows the maneuver to transfer a satellite from a GTO to GEO.

### Transfer Orbits

Taking a look at different transfer orbits to maximize fuel and time efficiency for space missions. Soundtrack: Deliberate Thought by Kevin MacLeod is licensed ...

### Geostationary Orbit - GEO Satellites

The video describes evolution of geostationary orbits. Geostationary (geosynchronous) satellites are widely used for space communications, data relay, direct ...

### Learning about the satellites and their orbits - Polar, Geostationary & Sun-Synchronous

In this session Dr. Manishika Jain explains the concept of orbit, precession, low, medium and high orbit, polar orbit, sun-synchronous orbit and geostationary ...