Blog - Ulysses
Ulysses Mission Operations Blog
Ground station can not find the carrier. Transmitter is off on the spacecraft. Goodbye Ulysses.
Telemetry loses lock as the spacecraft switches to use the low gain antennas.
Telemetry is back in lock at 64 bits per second engineering format. The command counter confirms reception of the final command.
Telemetry loses lock as the bit rate switches to 64 bits per second.
Switch from receiver one to receiver two.
Confirmation of the AOCS (Attitude and Orbit Control Subsystem) changes.
Thruster catalyst bed heaters are off.
Confirmation of the SIM high voltages have switched off.
The last command has been sent to the spacecraft. This should switch the downlink into 64 bits per second engineering only.
Confirmation that the primary table has been updated.
Confirmation that the DSU (tape recorders) are off.
The commands to turn the SIM high voltages off are being resent.
Confirmation that the CONJ is descheduled, so no more fuel bleeding every two hours.
Confirmation that the X-wing heaters are on.
Confirmation that the first two block commands have been received by the spacecraft.
Telemetry shows the high voltage feed to the BAM instrument has turned off.
The commands to turn the SIM instrument off, will be resent. It's possible that the spacecraft didn't receive them when the antenna stopped.
Telemetry resumed. The loss was when the antenna stopped tracking the spacecraft.
Command modulation, on the uplink to the spacecraft, is on.
First non critical parameters out of limits. Telemetry processing is proceeding as normal. The signal to noise ratio is 3.4 db.
First telemetry received, day 181 15.22.26. The data quality is looking good, 256 bits per second.
Live streaming from the Ulysses Mission Support Area starts at 15:20 UTC (17:20 CEST, 11:20 EDT, 08:20 PDT). Available at ESA's channel on Livestream.
The Voyager mission has graciously ceded their pass on DSS-43 (Canberra 70m ground station) to Ulysses. Our next pass will therefore be over DSS-43 from 06:45 to 08:50 UTC on 30-Jun-2009. The sequence of events is expected to remain the same as that previously for DSS-14 on the same day with the exception of the event times.
Received notification that DSS-14 (Goldstone 70m ground station) has been declared RED. We are scrambling to rearrange the command sequences for the final day of operations which are due to be transmitted during our scheduled pass over DSS-14 which is supposed to start tomorrow at 00:00 UTC. We are also pursuing alternate coverage over the 34m network, in which case the command sequences will be transmitted in the blind, i.e. without telemetry verification.
Reload this page on 30-Jun-2009 after 15:00 UTC (08:00 PDT) for mission ops updates.