N Star-C

Japan


Spacecraft n°:

Japanese satellite n°: 103


Launch data:

Designation 27461 / 02035B
Launch date 05 Jul 2002 - 23:22 UT
Launch site Ko, ELA-3
Launch vehicle  Ariane-5G (V153)
MissionCommunications
Geostationary orbit on:
Perigee / Apogee  km
Eccentricity 
Inclination °
Period  min
Location136°E

Delivered in orbit in Sep 2002.


Specifications

Prime contractor Lockheed Martin
Platform OSC STAR 2
Mass at launch 1645 kg
Dry mass approx 800 kg
Dimension 3.3 x 1.9 x 1.5 m (12.6 m span deployed)
Solar array  
Stabilization 3-axis
DC power BOL: 2600 W
Design lifetime 15 years

Will have one 5-m antenna provided by Harris Corporation. First flight of a new Orbital hydrazine/nitrogen tetroxide liquid apogee propulsion system with a 500N thrust apogee engine developed by Japan's IHI.


Launch team members watch as N-STAR c is lowered for a fit check on the cone-shaped adapter that will serve as the interface with its Ariane 5 launcher. N-STAR c will be operated by Japan’s NTT Mobile Communications Network, Inc. (NTT DoCoMo). The satellite was built by a joint venture of Lockheed Martin (spacecraft prime contactor, as well as payload supplier and integrator) and Orbital Sciences Corporation (responsible for the satellite bus and related ground system, as well as procurement of the launch vehicle and performance of initial satellite operations).
N-STAR c is in position atop the Ariane 5 launcher in this photo taken during final integration activity. Built by Lockheed Martin and Orbital Sciences for NTT DoCoMo, Inc. of Japan, N-STAR c will weigh approximately 1,645 kg. at launch. N-STAR c will ride inside the Sylda 5F dispenser, and is to be released after Stellat 5 during the flight.

Mission details:


C-band

Main transponders  
Backup transponders  
Power  
Bandwidth  
Coverage  
EIRP max  
G/T max  
Polarization  
Frequencies uplink: 6.245-6.425 GHz
downlink: 4.120-4.200 GHz

S-band

Main transponders  
Backup transponders  
Power  
Bandwidth  
Coverage  
EIRP max  
G/T max  
Polarization  
Frequencies uplink: 2.660-2.690 GHz
downlink: 2.505-2.535 GHz


Ref: #7, #15, #66a - update: 27.12.12