my area of study Nigeria communication satellite 1R

NigComSat-1R is a hybrid geostationary satellite with 28 transponders for providing cutting-edge telecommunications solutions that are both reliable and cost-effective. The quad band satellite is located at 42.5 degrees East with a lifespan of at least 15years and footprints in West, East and Southern Africa, Europe and Asia. NigComSat-1R inherits many flight proven technologies used by NigComSat-1, VENESAT-1 and DHF-3 series space crafts.
The NigComSat-1R communications subsystem consists of C-band, Ku-band, Ka-band and L-band. The Ku-band payload consists of fourteen (14) active channels, with a bandwidth of 31.5MHz each and three fixed beams over East Africa, West Africa and Kashi. The C-band payload consists of four (4) active channels, with a bandwidth of 36MHz each and coverage over West, Central and Eastern Africa.
The L-band Navigational payload receives two uplink signals on C-band, using a separate C-band antenna covering Europe and Nigeria, and transmits two downlink signals on L-band (L1 and L5) using a global coverage.
The Ka-band payload consists of eight (8) active channels, with a bandwidth of 120MHz each for communications and broadcast services. It has three fixed spot beams over Nigeria, South Africa and Europe.

NIGCOMSAT-1R AT FULL ORBIT IN THE SPACE

SATELLITE CONTROL
NigComSat-1R has two ground control stations. The main station is in Abuja, Nigeria and the back-up station is in Kashi, China. Both stations are equipped with state of the art satellite control equipment and software.

BEACON FREQUENCIES
The satellite has two beacon frequencies on C-band.
• Beacon Frequency 1 - 3696.84MHz ( LHCP)
• Beacon Frequency 2 - 3694.14MHz (RHCP)

TECHNICAL SUMMARY,LUNCH INFORMATION

ORBITAL LOCATION LUNCH VEHICLE Life Expectancy Launch Date
42.5º E LM-3BE 15 years 19th December 2011

TRANSPONDER INFORMATION
PAYLOAD COVERAGE BANDWIDTH/TRANSPONDER POWER

Ku-BAND WEST, SOUTH AFRICA,& KASHI 31.5MHz 150 Watt TWTA

C-BAND WEST , EAST AND CENTRAL AFRICA 36 MHz 60 Watt TWTA

Ka-BAND EUROPE,NIGERIA & SOUTH AFRICA 120 MHz 70 Watt TWTA

L-BAND GLOBAL L1 = 4 MHz L1= 62 W SSPA
L5 =20 MHz L5 = 45 W SSPA

STATION KEEPING WINDOW: ±0.05º E/W & N/S
POINTING ACCURACY: ±0.130 for normal operations

SATELLITE ANTENNAS:
PAYLOAD ANTENNA TYPE
Ku-BAND 2-DEPLOYABLE SHAPED DUAL REFLECTOR

C-BAND 1-FIXED-REFLECTOR, 1-HORN

Ka-BAND 2-FIXED REFLECTOR

L-BAND 1-HELICAL

SATELLITE PHYSICAL DESIGN:

M ANUFACTURER: China Great Wall Industries Corporation (CGWIC)
SPACECRAFT PLATFORM : DFH-4
TOTAL MASS AT LAUNCH: 5088.2 Kg
STRUCTURE DIMENSIONS (STOWED): 2360mm X 2100mm X 3700mm

OTHER SERVICES OFFERED BY NIGCOMSAT-1R
e-Government
NigComSat-1R will revolutionize the way Government operates, by guaranteeing a reliable and secure communication infrastructure. The possibilities are endless; from customs and excise payments, to national database creation and management, to e-passport. Contractors can review and bid for Government jobs from around the world, and Government ministries can communicate and make decisions with a click of a button, leading to a more streamlined, more transparent and more progressive Government.

Transponder Leasing

NigComSat-1R is built with radiation hardened technology, high reliability, on board software re-programmable ability, fault tolerance, redundant components and high efficiency. NigComSat-1R has 28 active transponders and 7 antennas to guarantee stronger footprints and centre beams over the African, European and Asian continents; better look angles andshorter latency for intra-African communications traffic. Adequate fade margin compensation for attenuation losses by rain guarantees increased reliability and availability. NigComSat-1R‘s Ku-band offers low costs for broadband services arising from frequency re-use techniques, competitively priced transmission capacity, small antennas and reduced terminal prices. With the promise of unimaginable applications, NigComSat-1R is truly a first in Africa.

DTH Platform
The NIGCOMSAT Direct-to-Home Facility operated by Platinum Plus TV (PPTV) provides broadcast operators with the infrastructure they need to deliver audio, video and other media to compete in an increasingly diverse DTH marketplace. Key features of the NIGCOMSAT DTH Platform:
• 150 SD Channels and 25 HD channels
• Video on Demand, IPTV and OTT platforms
• Multi-format compression support
• Powerful content processing
• Local program insertion
• Flexible head-end architecture
• Integration of all major conditional access systems
• Distributed content processing
• Local and remote statistical multiplexing
With the continuous innovations seen in media delivery, our solutions will provide broadcast operators the tools to incorporate larger channel line-ups, interactive services, high-definition programming, and the introduction of hybrid multi network delivery.

Tele-Communication
NigComSat-1R will complement existing terrestrial infrastructure to ensure the provision of cost effective and high quality data, voice and video communication. Tele-communications service providers will be able to provide high speed and affordable broadband access to customers, increasing the potential for ICT and ICT-based innovations for individuals and businesses alike. With strong footprints, more powerful signal strength, a high number of active transponders and antenna reach across Africa, Asia and Europe, NigComSat-1R enables tele-communications service providers to work towards an effective transformation in the quality, delivery and possibilities of tele-communications services across the continent.

Tele-Education
NigComSat-1R will work with stakeholders in the education sector to deliver unprecedented innovations in the area of tele-education. Public and private sector providers of educational services can take advantage of NigComSat-1R’s cost effective and high quality services to provide relevant solutions to an even larger market. With the availability of real-time data, voice, video and internet transmission, age, distance or location will no longer be hindrances to learning. This will enhance accessibility to education in rural areas and facilitate the creation of networks providing educational programmers and resources to both urban and rural dwellers.

Tele-Medicine
Tele-medicine generally refers to the use of communications and information technologies for the delivery of clinical healthcare. It entails the transfer of medicalinformation via the telecommunication network for the purpose of consulting and sometimes remote medical procedures or examinations. Tele-medicine may be as simple as two healthcare practitioners discussing a case over the telephone, or as complex as using satellite technology and video conferencing equipment to conduct a real-time consultation between medical specialists in two different countries. Working with the relevant authorities and strategic partners, NigComSat-1R’s tele-medicine application will facilitate higher quality of healthcare.