Answer the following question: Information: - Astra 1K was a communications satellite manufactured by Alcatel Space for SES. When it was launched on November 25, 2002 it was the largest civilian communications satellite ever launched, with a mass of . Intended to replace the Astra 1B satellite and provide backup for 1A, 1C and 1D at the Astra 19.2E orbital position, the Blok DM3 upper stage of the Proton launch vehicle failed to function properly, leaving the satellite in an unusable parking orbit. Although some attempts were made to "rescue" the satellite, it was intentionally de-orbited on December 10, 2002. - Astra 1KR is one of the Astra geostationary satellites owned by SES . It was launched in April 2006 as a replacement for Astra 1K , which failed to reach orbit on launch in 2002 . The launch of Astra 1KR was the first attempted by SES since the Astra 1K failure . The craft launched to 3.4 east for testing , before moving to Astra 19.2 E , where it replaced Astra 1B , which was effectively decommissioned , and Astra 1C , which was then elderly and running beneath full capacity . It was expected to also replace Astra 2C , which was under - utilised , and to allow that satellite to return to Astra 28.2 E to join 2A/2B/2D to provide additional capacity . However , SES stated that Astra 1L would replace Astra 2C . The first signals from the craft at 19.2 east were direct replacements for four transponders on the failing Astra 1E . - Astra 19.2E is the name for the group of Astra communications satellites co-located at the 19.2East orbital position in the Clarke Belt that are owned and operated by SES based in Betzdorf, Luxembourg. - Astra 1B was the second of the Astra communications satellites launched and operated by SES (Societe Europeenne des Satellites). It was bought during its construction from GE Americom, and was launched to add extra capacity to the satellite television services from 19.2 east, serving Germany, the UK and Republic of Ireland. - A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. There are over 2,000 communications satellites in Earths orbit, used by both private and government organizations. After reading the paragraphs above, choose the best answer for the entity that related to 'astra 1kr' with the relationship of 'instance of'. Choices: - artificial satellite - channel - communications satellite - construction - government - mass - military - name - orbit - position - republic - satellite television - space - stage - television - transmitter
Answer:
communications satellite