It is now well known that all instruments devoted to ionizing charged particle measurements flying in space are never perfect. Response analysis for each instrument is very time consuming but must be always done before any use of those data. For such purpose a software has been developed at ONERA-DESP under CNES funding to analyze saturation, contamination and other problems in any instrument and to cross calibrate measurements between spacecraft in an easy way. The software allows to compose time series plots of various spacecraft/instruments to compare them in a quick way, to plot correlation between two data sets and check for the coherence among all data. Moreover, the IPSAT software allows to plot in situ measurement along various orbits for any time from 1990 to present. The available data range from public access to private access to ONERA or partners. The available orbits with measurements on-board are LEO, MEO, GEO and some GTO and HEO with more or less continuous time coverage. The current data base is now about 400Go. This can be very helpful for spacecraft anomaly analysis especially in case the spacecraft has no radiation measurements on-board. The IPSAT software can be accessed on the web after being registered.