Tag Archives: timeline

How to follow Rosetta’s grand finale

Rosetta is set to complete its historic mission in a controlled descent to the surface of its comet on 30 September, with the end of mission confirmation predicted to be within 20 minutes of 11:20 GMT (13:20...

Celebrating two years at the comet

We’re celebrating Rosetta’s two year anniversary at Comet 67P/C-G (tomorrow!) with a new animation visualising the spacecraft’s incredible adventure flying alongside the comet. The animation begins on 31 July 2014, during Rosetta’s final approach to the comet after...

Science on the surface of a comet

Complex molecules that could be key building blocks of life, the daily rise and fall of temperature, and an assessment of the surface properties and internal structure of the comet are just some of the highlights of...

Transmitting to the experts back home Credit: ESA

How we heard from Philae

I picked up the phone and said: 'This has to be bad news. We've got a safe mode, don't we?' He replied, 'Well, maybe not. Maybe it's good news!'

Tracking timeline: Critical times

The most important times extracted from the tracking station timeline for today's AOS: acquisition of signal. The usual disclaimer: All times subject to change! Today, CET = UTC +1 hour UTC Event 10:00 WAKE UP (2:00 am PST) 14:35 NASA DSS-14 (Goldstone 70m) BOT (Begin of track) – watching for signal just in case ~17:00 Rosetta turns on S-band transmitter (45 min OWLT – one-way light time for signal to reach Earth) After 17:30 – from this time on all Rosetta times estimated ~17:45 NASA DSS-14 captures carrier signal ~18:10 Uplink command to ROSETTA to turn on telemetry (i.e. start downloading data) 18:15 DSS-43 (Canberra 70m) BOT ~18:55 Rosetta turns on telemetry ~19:40 First telemetry...