Extricating Spirit, Digging out from Troy |
Extricating Spirit, Digging out from Troy |
Guest_cassioli_* |
Oct 24 2010, 12:25 PM
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#991
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Guests |
Go here: http://www-mars.lmd.jussieu.fr/mars/time/martian_time.html Enter today's date, convert to Mars Date and Solar Longitude, and check out the explanation of Solar Longitude in the link at the top of the page. Phil Thanks, I also found this: http://users.zoominternet.net/~matto/Java/...rsion%202_0.htm But they give different result: first site says it's month 6 ("scorpius" month, as per table in second site), but second site gives day 10 of "Sagittarius" month , which is 7th. Does this mean june-equivalent?(or july-equivalent) Shouldn't it be march- or april-equivalent? |
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Oct 24 2010, 12:51 PM
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#992
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
There are a large number of different Mars calendars, and they divide months up in different ways- roughly equal number of sols, equal angle of solar longitude, etc. So you can't expect to find the same result, in month terms (or even in when the year starts, or which year it is), from different sites.
The site I gave is the only one in anything like common use among Mars researchers, and so it's the one I have used for Mars dates in a forthcoming book. But I ignore months and only refer to the Mars year and sol. As for the month for Spirit - I think they need to go into early summer to get it going, not just spring. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Oct 28 2010, 03:32 PM
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#993
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
From here, some dust storm activity over Spirit:
QUOTE Dust storm activity was observed in Terra Cimmeria on the 18th [of October], southwest of the MER-A (Spirit) rover, appeared to dissipate slightly on the 19th, but then picked up strength again on the 22nd and quickly moved toward the rover, persisting over the rover site on the 23rd and 24th. This could be good or bad news - cleaning events have been associated with dust storms before. |
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