Discovery Program 2006 and Missions Of Opportunity |
Discovery Program 2006 and Missions Of Opportunity |
Guest_AlexBlackwell_* |
Jan 3 2006, 10:19 PM
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#1
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Guests |
I'm not sure exactly which forum this fits in but NASA has just released the AO for Discovery Program 2006 and Missions of Opportunity. See the Discovery Program Acquisition Home Page for more details. Click on the "Discovery AO" link to download the PDF.
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Jan 4 2006, 10:05 AM
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#2
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Founder Group: Chairman Posts: 14448 Joined: 8-February 04 Member No.: 1 |
Yup - the maths could get quite interesting. Is it worth spending perhaps $10m upgrading to a slightly heavier version of your ELV to get larger solar arrays so you can have a more powerfull transmitter and thus get more kbps and thus fewer sessions.
Might have had my maths a bit wrong earlier.....but this is all very very 'ballpark guestimation' say 14 1hr passes of 35m coverage per week ( i.e. the daily uplink for MER plus beep back ) would be something like $2424/hr, or about $34k/week ( $1.7m/year ). The finances for doing MER Relay with Odyssey is probably quite interesting, I think it would probably be something like 1 hr of Odysseys downlink per day is MER related - so a similar figure. Voyager QUOTE (Voyager update in the middle of '05) There were 90.3 hours of DSN scheduled support for Voyager 1 of which 32.6 hours were large aperture coverage There were 76.5 hours of DSN scheduled support for Voyager 2 of which 25.9 hours were large aperture coverage Say it's 28 sessions a week, 7 on 70m, 21 on 35m $6745/hr for the 70m - $400k (as near as makes no difference) $527k for the 35m - so that week's Voyager DSN ops cost about $927K. Youch. Very rough maths - probably very wrong to be honest. 7 x 8hr 70m passes per week, at 5kbps is $377,220 per week, for 984 MBytes - or $552 per floppy disk Doug |
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Jan 4 2006, 10:23 AM
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#3
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Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
It just goes to show it's time to switch to optical telecoms. No matter how many watts you pump into your RF transmitter, the vast majority of the transmitted power is simply wasted. The only positive thing a radio comm-link does is loosen the required pointing accuracy, of course due to the same dispersal of the signal.
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