First Year Performance Paper - Section 2.3
2.3 Configuration in 2005
In December and January 2004/2005 the first IceCube string was deployed along with four IceTop stations (eight tanks containing a total of 16 DOMs). This string is at location 21 of 80 on the IceCube plan and is therefore referred to as "String-21". Fig. 2 shows a surface map of the 2005 configuration, including the 19 AMANDA strings  and the 30 stations of the South Pole Air-Shower Experiment (SPASE) . The four IceTop stations enclose an area of approximately 1.7 × 104 m2.