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We present the results of processing the effects of the powerful Gamma RayBurst GRB221009A captured by the charged particle detectors (electrostaticanalyzers and solid-state detectors) onboard spacecraft at different points inthe heliosphere on October 9, 2022. To follow the GRB221009A propagationthrough the heliosphere we used the electron and proton flux measurements fromsolar missions Solar Orbiter and STEREO-A; Earth magnetosphere and the solarwind missions THEMIS and Wind; meteorological satellites POES15, POES19,MetOp3; and MAVEN - a NASA mission orbiting Mars. GRB221009A had a structure offour bursts: less intense Pulse 1 - the triggering impulse - was detected bygamma-ray observatories at 131659 UT (near the Earth); the most intense Pulses2 and 3 were detected on board all the spacecraft from the list, and Pulse 4detected in more than 500 s after Pulse 1. Due to their different scientificobjectives, the spacecraft, which data was used in this study, were separatedby more than 1 AU (Solar Orbiter and MAVEN). This enabled tracking GRB221009Aas it was propagating across the heliosphere. STEREO-A was the first toregister Pulse 2 and 3 of the GRB, almost 100 seconds before their detection byspacecraft in the vicinity of Earth. MAVEN detected GRB221009A Pulses 2, 3, and4 at the orbit of Mars about 237 seconds after their detection near Earth. Byprocessing the time delays observed we show that the source location of theGRB221009A was at RA 288.5 degrees, Dec 18.5 degrees (J2000) with an error coneof 2 degrees

Multi-Point Detection of the Powerful Gamma Ray Burst GRB221009A Propagation through the Heliosphere on October 9, 2022