My Assistant
Bit Rates, for orbiters |
Apr 12 2005, 11:19 AM
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Founder ![]() ![]() ![]() ![]() Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
For those like me who love the technical aspects of all this - I've been digging around a bit, and currently (or recently) - spacecraft are using the following DTE bitrates
MEX - 104857.6 bps Genesis - 16590 bps and 47400 bps MGS - 42666.7 bps and 8000 bps MER Cruise - 2212 bps and 7110 bps (via MGA) MODY - 124425 bps and 39816 bps In the case of two values - it is likely that the smaller value is using a 35m DSN dish, and the larger a 70m DSN dish. For info on MER UHF passes in the future - check out some ENORMOUS stats - http://mgsw3.jpl.nasa.gov/seq/relay/srpr/0...S00.apgen.notes April 1st was D.o.Y 91 - so these are April 20th and beyond - I believe 32 degrees elevation is the limit at which they'll do a 256kbps pass instead of a 128 kbps pass - but these stats confirmed what I thought - that the average sol will include 100 - 300 mbits of relay data - with as much as 158 mbits in a single pass and up to 4 passes per sol - but short passes are ignored as the downtime of operations to get the small ammount of data back doesn justify the interuption to MER and MODY ops. Doug |
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cIclops Next year MRO will blow all those away with its 4.... Apr 12 2005, 11:54 AM
djellison Oh hell yes - MRO will be fantastic - but remember... Apr 12 2005, 12:19 PM![]() ![]() |
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