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Uhf Passes, Doppler and Data Dropout
djellison
post Dec 9 2005, 04:14 PM
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http://anserver1.eprsl.wustl.edu/anteam/me...b_resources.htm
I like little interesting data sets like this - they're wonderfull to look at.

These ones cover the off-baseline frequency of Odyssey during a UHF pass ( from a baseline of 400Mhz ) - and if data is good or not (0 - good data..no, I dont know why either)

They were used to help locate the rovers early on - but I think they also show a good profile of what a UHF pass is typically like. You can see the data drop out twice, one presumes as the Pancam Mast, and the LGA obstructed the line of sight from UHF mast to Odyssey - and again right towards the end briefly, perhaps because of HGA.

Interesting little graph anyway.
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djellison
post Dec 9 2005, 05:02 PM
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I remember seing the UHF mast for MSL being on top of the equiv. of the pancam mast, but recent drawings I've seen dont have that anymore.

Some of the other passes show fairly long blackouts - perhaps HGA getting in the way etc.

Doug
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