IPN triangulation of extremely bright GRB 221009A

Report the extremely bright, long-duration GRB 221009A (Swift-BAT detection of Swift J1913.1+1946: Dichiara et al., GCN Circ. 32632; Kennea and Williams, GCN Circ. 32635; Fermi-GBM detection: Veres et al., GCN Circ. 32636; Fermi-LAT detection: Bissaldi et al., GCN Circ. 32636) has been detected by Fermi (GBM trigger 687014224), INTEGRAL (SPI-ACS), and Konus-Wind, so far, at about 47820 s UT (13:17:00). We have triangulated it to a Konus-GBN annulus centered at RA(2000)=1.444 deg (00h 05m 47s) Dec(2000)=+3.590 deg (+3d 35' 25") whose radius is 73.473 +/- 4.089 deg (3 sigma). This localization may be improved. The IPN localization is consistent with, but reduces the area of, the Fermi-GBM one (glg_healpix_all_bn221009553_v01). The IPN localization is consistent with Swift-BAT (GCN 32632) and Fermi-LAT (GCN 32636) position of Swift J1913.1+1946, supporting that Swift J1913.1+1946 is the afterglow of GRB 221009A. A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB221009_T47819/IPN/ The Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular.