Future trends and expected technological evolution - Cost estimation of the future communications satellite
From INVESaTWIKI
Future trends and expected technological evolution - Cost estimation of the future communications satellite
The cost of a 2G satellite is estimated. The 2G
satellite will be a large-sized satellite, assuming
the recent technology development status point
of view. As far as the size of the satellite is concerned,
the weight of the satellite is determined
by the capability of a launching rocket which
determines the size of a satellite. The rocket of
Arian 5 or H-2A will accommodate reasonable
size and will have the ability that can launch a
satellite of 6.8 ton into the GE0 orbit. In addition,
in order to improve the weight performance,
the ion engine and the lithium ion battery are
assumed to be aboard.
As far as the capacity is concerned, although the
antenna beam allocation and services am not
considered, only capacity of the satellite is considered
here. The 6.8 ton class satellite can embark
100 transponders. A high capacity transponder
of 622-1200 Mbps is now developed in
the WINDS project. Therefore, the total capacity
of the satellite might be 60-120 Gbps. We assumed
that the capacity of 2G satellite is 50-500
Gbps. The 60-120 Gbps is placed at the first
stage of 2G satellite. Thus we call this satellite
as a first stage of 2G (2G.1s) satellite here.
The increase of power generation
is needed to accommodate the large capacity. In order to increase the generation power of
the on-board solar array, tbe two dimensional
deployable solar paddle is proposed in the configurahon
of 2G.1s satellite.
The cost of this 2G.1s satellite can be estimated
as follows:
- The cost of bus: $125 Million.
- The cost of mission equipment: $0.58 Million per transponder including antenna. The total cost of mission equipment is $58 Million.
- Total cost: $183 Million.
In addition to the cost above, it needs the development cost of $42 Million. [1]
References
[1] T.Iida
"Cost consideration for future communications satellite".
