Where is SGR 1806−20?

We apply a statistical method to derive very precise locations for soft gammarepeaters using data from the interplanetary network. We demonstrate thevalidity of the method by deriving a 600 arcsec^2 error ellipse for SGR1900+14whose center agrees well with the VLA source position. We then apply it toSGR1806-20, for which we obtain a 230 arcsec^2 error ellipse, the smallestburst error box to date. We find that the most likely position of the sourcehas a small but significant displacement from that of the non-thermal core ofthe radio supernova remnant G10.0-0.3, which was previously thought to be theposition of the repeater. We propose a different model to explain the changingsupernova remnant morphology and the positions of the luminous blue variableand the bursting source.Comment: 12 pages and 2 color figures, accepted for publication in Astrophysical Journal Letter