| Telstar 18V | |
| Names List: | Telstar 18 Vantage Apstar-5C |
| Mission Type: | Communications |
| Operator: | Telstar |
| Cospar Id: | 2018-068C |
| Satcat: | 43611 |
| Mission Duration: | 15 years (planned) (elapsed) |
| Spacecraft Bus: | SSL-1300 |
| Manufacturer: | SSL |
| Power: | 14 kW |
| Launch Date: | 10 September 2018, UTC |
| Launch Rocket: | Falcon 9 B1049.1 |
| Launch Site: | Cape Canaveral, SLC-40 |
| Launch Contractor: | SpaceX |
| Entered Service: | October 2018 |
| Orbit Reference: | Geocentric orbit |
| Orbit Regime: | Geostationary orbit |
| Orbit Longitude: | 138° East |
| Apsis: | gee |
| Trans Band: | 64 transponders: Ku-band, C-band |
| Trans Coverage: | Asia |
| Programme: | Telstar |
| Previous Mission: | Telstar 18 |
| Next Mission: | Telstar 19V |
Telstar 18V (Telstar 18 Vantage / APStar 5C) is a communication satellite in the Telstar series of the Canadian satellite communications company Telesat.[1] T18V will be equipped with C and Ku-band transponders and operate from 138° East. At 7060kg (15,570lb), it is the second-heaviest communication satellite ever launched, weighing slightly less than its sibling Telstar 19V.[2]
Telstar 18V was launched on a SpaceX Falcon 9 Block 5 rocket from Space Launch Complex 40 (SLC40) at Cape Canaveral Air Force Station, Space Coast, Florida, United States, on September 10, 2018, at 12:45 AM EDT (4:45 UTC). It was deployed into a subsynchronous transfer orbit (lower than the typical geostationary transfer orbit (GTO)) approximately 32 minutes after rocket's liftoff.[3]