5 ms·
Looks like COSAC data is coming in! https://twitter.com/esaoperations/status/533387528376942592 https://twitter.com/esaoperations/status/533387528376942592 Thi
by Osmium 12y ago
Looks like COSAC data is coming in! https://twitter.com/esaoperations/status/533387528376942592 https://twitter.com/esaoperations/status/533387528376942592
This is an instrument that does analysis on whatever samples the drill picks up. We know the drill successfully deployed earlier, so hopefully that means it picked up something and we now have the data from that!
Looks like that's pretty much it for the battery though, unless last minute manoeuvrings result in the potential for a recharge in the future:
https://twitter.com/Philae2014/status/533403430489178112 https://twitter.com/Philae2014/status/533403430489178112
Edit: CONSERT data now coming in! CONSERT is an instrument to detect a radar pulse sent out by Rosetta that travels through the centre of the comet to tell us something about its internal structure. Also another ROLIS image (panorama) has been taken, though it's not clear to me if it's been transmitted yet. Very low battery now.
http://en.wikipedia.org/wiki/CONSERT http://en.wikipedia.org/wiki/CONSERT
Edit: I missed this before, but it looks like Ptolemy data has been received too! This is another instrument that's supplied with samples from the drill.
http://sci.esa.int/rosetta/31445-instruments/?fbodylongid=896 http://sci.esa.int/rosetta/31445-instruments/?fbodylongid=89...
- ajuc 12y agoTimes are in funny format: 2014.318.14.09.20.272 - 2014.318.22.31.05.464 It seems to be YYYY.dayOfYear.hh24.mi.ss.miliseconds
- kijin 12y agoI guess months don't mean much without the moon.
- erispoe 12y agoWhat about years without the Earth?
- lostlogin 12y agoWhen I think about this it gets progressively more amusing. Year 2014 is a time point when Jesus was between 4 and 6. That level of imprecision contrasts starkly with the time stamps being discussed. That Jesus even comes into it is fascinating. Maybe 2014 CE is less controversial, although somewhat dishonest as it uses the same time point as reference. http://en.m.wikipedia.org/wiki/Anno_Domini http://en.m.wikipedia.org/wiki/Anno_Domini http://en.m.wikipedia.org/wiki/Nativity_of_Jesus#Date_of_birth http://en.m.wikipedia.org/wiki/Nativity_of_Jesus#Date_of_bir...
- PhasmaFelis 12y agoEh, I think at this point the provenance and significance of the zero date is less important than just having a zero, any zero, that everyone can agree upon and that matches up with the standard used more-or-less globally for the last century at least. I don't think there's anything dishonest about CE using the same reference point as AD; it's just the most convenient one.
- kijin 12y agoThe beginning of the Holocene around 11700 BP might serve as a good objective reference point. Nearly every interesting thing that happened in the history of human civilization took place in the Holocene. No more negative years to worry about! "Present" in "before present" (BP) usually means 1950 AD [1], so this year would be Year 11764 of the Holocene epoch. Brb, gotta find some COBOL programmers to fix that Y10K problem. But then, the starting date of 11700 BP is also kinda arbitrary. No single short-term event defines the boundary between Pleistocene and Holocene, so we're still left with a sizable margin of error, probably even larger than the error in Jesus' date of birth. [1] https://en.wikipedia.org/wiki/Before_Present https://en.wikipedia.org/wiki/Before_Present
- HCIdivision17 12y agoI imagine it's either to make the date internationally unambiguous (re: interpreting yyyy.mm.dd vs yyyy/dd/mm) or to save two bytes per string. I'd bet it's to make better use of bandwidth, since these time stamps are likely sent enough to have some payoff for it.
- ajuc 12y agoIt it's for bandwidth then they should use miliseconds since start of mission. Maybe they do, BTW, maybe it's just display format.