Robuta

https://test.gcn.nasa.gov/circulars/3080 GCN - Circulars - 3080 - Swift 107873: P60 Optical Observations gcn circulars swift optical observations https://gcn.nasa.gov/circulars/3087 GCN - Circulars - 3087 - Swift-BAT trigger 107873: No Swift XRT counterpart gcn circulars swift bat trigger https://gcn.nasa.gov/circulars/3082 GCN - Circulars - 3082 - Swift-BAT trigger 107873 (GRB050309): possible X-ray counterparts