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In 2000–2001 Ulysses\ud passed from the south to the north polar regions of the Sun in the inner\ud heliosphere, providing a snapshot of the latitudinal structure of cosmic ray\ud modulation and solar energetic particle populations during a period near solar\ud maximum.  Observations from the COSPIN suite of energetic charged particle\ud telescopes show that latitude variations in the cosmic ray intensity in the\ud inner heliosphere are nearly non-existent near solar maximum, whereas small but\ud clear latitude gradients were observed during the similar phase of Ulysses’\ud orbit near the 1994–95 solar minimum. At proton energies above ~10 MeV and\ud extending up to >70 MeV, the intensities are often dominated by Solar\ud Energetic Particles (SEPs) accelerated near the Sun in association with intense\ud solar flares and large Coronal Mass Ejections (CMEs). At lower energies the\ud particle intensities are almost constantly enhanced above background, most\ud likely as a result of a mix of SEPs and particles accelerated by interplanetary\ud shocks. Simultaneous high-latitude Ulysses and near-Earth observations show\ud that most events that produce large flux increases near Earth also produce flux\ud increases at Ulysses, even at the highest latitudes attained. Particle\ud anisotropies during particle onsets at Ulysses are typically directed outwards\ud from the Sun, suggesting either acceleration extending to high latitudes or\ud efficient cross-field propagation somewhere inside the orbit of Ulysses. Both\ud cosmic ray and SEP observations are consistent with highly efficient transport\ud of energetic charged particles between the equatorial and polar regions and\ud across the mean interplanetary magnetic fields in the inner heliosphere.  <b>Key words. </b>Interplanetary physics\ud (cosmic rays) – Solar physics, astrophysics and astronomy (energetic\ud particles; flares and mass ejections

Ulysses COSPIN observations of cosmic rays and solar energetic particles from the South Pole to the North Pole of the Sun during solar maximum