1020016

We propose fixed-time observations of the galactic microquasar SS433during two consecutive INTEGRAL orbits (240 ks + 240 ks) around the orbital hard X-ray eclipse at the disk precessional phase$Psiapprox 0.2$ of the source in March 2013. The main scientific goal of new observations is to investigate hard X-ray flux variations before and after the X-ray eclipse to investigate disk nutation effects discovered by previousINTEGRAL observations which were carried out at the maximum disk opening angle at different precession phases of the source. The observations will also be used to search for spectralchanges with precession phase. The results will allow us to put stringent constraints on physical parameters of the funnel of supercritical accretion disk and hot scattering corona discovered by INTEGRAL in SS433 a unique feature of SS433 among other galactic microquasars. The proposal is not associated with any of the AO10 Key Programs. [truncated! Please see actual data for full text]