Philae, Rosetta’ solar-powered lander has woken adult from a scarcely 7 months of hibernation. On Saturday, Jun 13, 2015 during 22.28 CET, Philae phoned home, promulgation initial information to Earth. More than 300 information packets are being evaluated. They especially enclose information about Philae’s “health” and have shown that a comet examine has an handling heat of -35 degrees Celsius and 24 watts of appetite available. For 85 seconds, Philae “spoke” to a group on Earth in a initial hit given going into hibernation. On Jun 14, a lander done follow-up hit with Earth, promulgation some serve information packets between 23.22 CET and 23.26 CET. This time, however, a tie was rather faint.
“We are assured that we will shortly again be means to lift out systematic measurements,” says Dr. Hermann Böhnhardt from a Max Planck Institute for Solar System Research, systematic executive of a alighting mission. In new months, a Philae group had grown strategies how Philae’s instruments could be operated with tiny energy. For this purpose, 24 watts would have been enough. “In addition, we design that some-more appetite could be accessible in a subsequent few weeks,” pronounced Böhnhardt.
The research of standing information during a weekend showed that Philae contingency have been watchful earlier. The information packets enclose information from prior days. However, apparently Philae was incompetent to make hit with Rosetta during a time.
Before a belligerent group is means to control a lander, approximately during a 304 million kilometers distance, here from Earth, fast and longer connectors contingency be done possible. Only afterwards a prepared instructions for a systematic work of a 10 instruments on house can be uploaded and a subsequent experiments begin.
The experts will not confirm a sequence in that a instruments should be used until they have information on Philae’s health. “Initially, a non-mechanical instruments will no doubt be used – i.e. instruments that do not cavalcade or hammer,” says Stephan Ulamec, Philae plan manager during a German Aerospace Center (DLR). Instruments that devour tiny appetite and contingency usually send tiny amounts of information to Earth will also be in a forefront.
Now a scientists and engineers are watchful for a subsequent contact. Philae’s mass memory contains some-more than 8000 information packets that should yield serve insights into how Philae fared on comet 67P/Churyumov-Gerasimenko.
Philae had left into puncture hibernation on Nov 15, 2015 during 1:15 CET, after it had been in operation for about 60 hours on a comet. Since Mar 12, 2015, a communication section on a orbiter Rosetta was regularly incited on to call a lander and accept a answer.