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#### ULA Readies Its Most Powerful Altas V Rocket For Late Night Cape Launch - WMFE

The launch, scheduled just after midnight from Space Launch Complex 41, will send the Air Force's Advanced Extremely High Frequency communications satellite into a geostationary transfer orbit (GTO). The satellite, designed by Lockheed Martin and ...

#### 100th launch of Europe's Ariane 5 rocket sends a pair of telecom satellites into orbit - GeekWire

News Brief: The milestone 100th launch of Europe's heavy-lift Ariane 5 rocket put two telecommunications satellites into geostationary transfer orbit today. The rocket rose from Arianespace's launch site in Kourou, French Guiana, at 7:38 p.m. local ...

#### Arianespace conducts its 300th mission with the 100th Ariane 5 launch - NASASpaceflight.com

The Ariane 5 rocket was developed by the European Space Agency (ESA) to be a heavy-lift launcher used to deliver payloads to Geostationary Transfer Orbit (GTO) and Low Earth Orbit. Manufactured under the direction of ESA and the Centre National ...

#### Secondary payload delivery SpaceX launch will send Israeli lunar lander to moon in 2019 - Next Big Future

In 2019, Israel-based company SpaceIL's lunar lander spacecraft will be launched using rocket ridesharing. There will be rideshare opportunities to Geosynchronous Transfer Orbit (GTO) approximately every 12-18 months, or as customer demand requires.

#### SpaceX Falcon 9 rideshare launch to send a commercial lander to the Moon in 2019 - Teslarati

... in conjunction with the 2018 World Satellite Business Week conference, satellite rideshare organizer Spaceflight Industries and SpaceX are on track for the first functionally dedicated rideshare mission to a relatively high-energy geostationary ...

#### Viasat selects Atlas 5 rocket for broadband satellite launch - Spaceflight Now

The companies said in a joint statement that the Atlas 5 rocket, in its most capable configuration, can loft the ViaSat 3 satellite “into a high-energy geostationary transfer orbit where it can begin on-orbit operations faster than with other available ...

#### Spaceflight Offers Rideshare Launches to GEO - Via Satellite

The company anticipates offering rideshare opportunities to Geosynchronous Transfer Orbit (GTO) approximately every 12-18 months, or as customer demand requires. The first mission will launch from Cape Canaveral Air Force Station aboard a SpaceX ...

#### SpaceX launches Telstar 18 VANTAGE satellite - Aerospace Technology

SpaceX has launched the Telstar 18 VANTAGE satellite into a geostationary transfer orbit (GTO) from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station in Florida, US. Launched onboard a SpaceX Falcon 9 rocket, the satellite was ...

#### Watch SpaceX's 16th mission from two different cameras in one video - htxt.africa

The firm also accounts for two-thirds of the orbital launches made off US soil this year according to Ars Technica. The latest mission saw SpaceX launching the Telstar 18 Vantage satellite into Geostationary Transfer Orbit early Monday morning. The ...

#### Spaceflight Offers Rideshare Launches to Geosynchronous Transfer Orbit - Digital Journal

PARIS--(Business Wire)--Spaceflight, the leading satellite rideshare and mission management provider, announced today at Euroconsult's World Satellite Business Week conference that it has procured upcoming launches to Geosynchronous Orbit – a ...

#### SpaceX launched 60th Falcon 9 and successfully deployed Telstar 18 VANTAGE satellite - Next Big Future

Successful deployment of Telstar 18 VANTAGE to a geostationary transfer orbit confirmed. pic.twitter.com/nlRgxoILJ9. — SpaceX (@SpaceX) September 10, 2018. Falcon 9 and Telstar 18 VANTAGE are vertical on Pad 40 in Florida. Weather is 60% favorable ...

#### SpaceX launch: Watch moment Falcon 9 rocket blasts off to deliver telecoms satellite into orbit - Evening Standard

... is the moment SpaceX's Falcon 9 rocket blasted a telecoms satellite into orbit. The successful launch took place at Cape Canaveral Air Force Station to deliver a Telstar 18 VANTAGE commercial communications satellite. It will go into geostationary ...

#### SpaceX rocket launches Canadian satellite into orbit - CBC.ca

SpaceX launched its Falcon 9 rocket on Monday morning at 12:45 a.m. ET from Cape Canaveral, Florida, after rain and cloudy weather delayed the launch by over an hour. The rocket was carrying Canada's Telstar 18 Vantage communication satellite.

#### Elon Musk's SpaceX Launches Falcon 9 Telstar 18 Vantage Satellite into Orbit, Nails Droneship Landing - Newsweek

The Vantage, a telecommunications satellite, boosted to a Geostationary Transfer Orbit (GTO), deploying 32 minutes after liftoff. The first stage of SpaceX's Falcon 9 later completed a landing on the Of Course I Still Love You droneship that is ...

#### Watch SpaceX launch its Falcon 9 from Cape Canaveral and target a drone ship landing - Florida Today

SpaceX successfully launched a Falcon 9 rocket from Cape Canaveral Air Force Station at 12:45 a.m. ET Monday and delivered the Telstar 18 VANTAGE commercial communications satellite to geostationary transfer orbit. The rocket's first stage successfully ...

#### SpaceX Falcon 9 Block 5 ready to launch second largest communications satellite - Teslarati

After a long slip and slide from mid-August to September 9th, SpaceX and customer Telesat Canada are ready to launch the second largest communications satellite to a geostationary transfer orbit, Telstar 18V, following in the footsteps of a July 2018 ...

#### SpaceX Falcon 9 conducts Telstar 18V Cape launch - NASASpaceflight.com

SpaceX launched its second mission in two months for Telesat Canada Sunday, with a Falcon 9 rocket placing the Telstar 18V satellite into geostationary transfer orbit. Falcon lifted off from the Cape Canaveral Air Force Station during a four-hour ...

#### WATCH REPLAY: SpaceX Telstar 18 VANTAGE Launches From Cape Canaveral Successfully - SpaceCoastDaily.com

The Telstar 18 VANTAGE communications satellite was delivered to geostationary transfer orbit. The satellite will provide broadcast, enterprise and government communications services over parts of India, China, Mongolia, Southeast Asia, and the Pacific ...

#### Falcon 9 launches Indonesian communication satellite into orbit - India Today

The satellite was deployed approximately 32 minutes after liftoff into its targeted Geostationary Transfer Orbit (GTO). FIRST STAGE. The first-stage booster previously took to the air in May. After performing its latest task, the booster landed upright ...

#### Gallery: SpaceX launches Falcon 9 with Merah Putih - SpaceFlight Insider

The payload on this flight was the Merah Putih telecommunications satellite which was sent to a geostationary transfer orbit (GTO) via a Falcon 9 rocket. The flight was carried out from Cape Canaveral Air Force Station's Space Launch Complex 40 located ...

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 ...

### 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 ...

### GTO to GEO transfer

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

### Geostationary Orbit - GEO Satellites

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

### Geosynchronous Vs Geostationary Satellites | Tundra orbit, explained w/t example

This video is in response to our viewer's question. If you have any aerospace question, do ask in the comments below! This video talks about: 1) ...