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| Date | Configuration | Maximum projected baseline | Resolution associated with the |
| in meters | maximum projected baseline in mas | ||
| October 7, 2005 | A5-B5-C0 | 6.5 | 51.7 |
| October 8, 2005 | A5-B15-C0 | 15.2 | 22.1 |
| October 10, 2005 | A20-B15-C0 | 19.5 | 17.2 |
| October 11, 2005 | A20-B15-C0 | 19.6 | 17.1 |
| October 12, 2005 | A25-B15-C0 | 27.2 | 12.4 |
| October 16, 2005 | A30-B15-C15 | 31.2 | 10.8 |
Configurations represent the station locations of the telescopes A, B and C along the northeastern arm (A and C) and southeastern arm (B) of IOTA.
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