Fig. 2.
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Final IPN localization of GRB 180128A. The localization defined by the Fermi-INTEGRAL (red) and Fermi-Swift (blue) annuli. The shown annuli widths have 3σ confidence. The overlap of the annuli gives an ellipse (purple) with a 90% confidence area of 9.3 deg2. The star marks the location of NGC 253. The initial Fermi/GBM localization and confidence intervals are in gray.
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