Print this page

Design & Deployment baselines

Design & Deployment baselines

At the meeting of the SKA Board of Directors in July 2017, the SKA Board agreed to the following recommendations in relation to the budget, design and construction for SKA1:

1. The Design Baseline for all Design Consortia will be the basis for Critical Design Reviews and the long-term ambition of the SKA1 project.

  • For SKA1-mid in South Africa, the Design Baseline includes the following: 133 antennas and associated infrastructure and power which includes 21 antennas located in three spiral arms with a maximum baseline of 150km;
  • For SKA1-low in Australia, the Design Baseline includes the following: 512 stations in a large core and three spiral arms with a maximum baseline of 65km.

2. The SKA1 Deployment Baseline will be defined in the SKA Construction Proposal to be developed in the second half of 2019. Deployment Baseline will include as much of the Design Baseline as can be afforded at that time. The current Deployment Baseline is formulated on the assumption that €674M (2016 Euros) will be available. Scientific assessment of the proposed deployment baseline demonstrates that the SKA Observatory will deliver transformational science capabilities. Re-instatement of the omitted capabilities, up to the full restoration of the Design Baseline, is planned, either during or after the construction phase, should additional funding become available. The Deployment Baseline will be regularly reviewed by the SKA Science and Engineering Advisory Committee (SEAC) under the direction of the SKA Board.

The implications to these SKA Board approvals are that the scaling options, as well as the steps taken to reduce the cost of the Design Baseline will be implemented to achieve the current calculated Deployment Baseline. The current Deployment Baseline includes the following:

  • For SKA1-mid in South Africa: 130 antennas and associated infrastructure and power which includes 18 antennas located in three spiral arms with a maximum baseline of 120km;
  • For SKA1-low in Australia, the Design Baseline includes the following: 476 stations with a maximum baseline of 40km.

Also in this section