The most recent spacecraft telemetry was acquired from the Madrid tracking station on Wednesday, January 10. The Cassini spacecraft is in an excellent state of health and is operating normally. Phase E of the Jupiter subphase continued this week.
Hydromagnetic waves are also evident upstream of the shock.
Mirror mode waves are present in the magnetosheath for much of the day. The actual magnetopause crossing time is still in question, however. Based on previous experience with Galileo in this region of the magnetosphere, it seems that on occasion, the density gradient can be very gradual and the location of the boundary not very clear in the wave data. Cassini exited the magnetosphere that same day reentering the magnetosheath and then went back in to the magnetosphere at about 0700 on day 10. For the period on day 9 when Cassini was inside the magnetosphere, Galileo also was still inside, hence the two spacecraft were inside Jupiter's magnetosphere at the same time.