The Jovian magnetosphere has been probed by several spacecraft and thus vector magnetic data have also been accumulated intermittently. Since the first flyby to Jupiter by Pioneer 10 in 1973, six spacecraft (Pioneer 11, Voyager 1, Voyager 2, Ulysses, Cassini, and New Horizons) flew by and five out of them (i.e., except New Horizons) conducted magnetic observations. Galileo (Johnson et al., 1992) was the very first orbiter inserted into Jovicentric orbits, and now Juno (Bolton et al., 2017) is in Jupiter's polar orbits. One of the main applications of the magnetic data is modeling of the Jovian magnetic field, which mainly consists of the Jovian intrinsic and magnetospheric magnetic fields.The Jovian intrinsic field is originated from the dynamo action inside Jupiter. Its models have been studied intensively since the first observation by Pioneer 10, for example,