The ultimate observing campaign for the Transitional ms X-ray PSRJ1023+0038

PSR J1023+0038 is a binary system that hosts a neutron star and a lowmass,mainsequence companion star. It has been observed to switch on timescales ofyears between a radio millisecond pulsar and a discdominated state, ofuncertain origin. After its last switch to a discdominated state in 2013, thesource has been the object of extensive multiwavelength monitoring campaigns,during which the continuous switch between three Xray modes (high, low andflare) on timescales of 10 s has been observed. Here we propose the ultimate ,strictly simultaneous, multiwavelength campaign to study in detail this uniquephenomenon. We will involve NuSTAR, XMMEPIC, SwiftUVOT, XMMOM, VLT/HAWKI,VLA observations to probe models using correlations and lags, as well as to study the pulsed signal. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]