-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Kevin Fetter wrote: > It says they will do a East-West Station Keeping maneuver. Though I can't currently use data from GOES 12 (some of its Space Environment Monitor [SEM] subsystem is broken), it's always nice to know when things are moving. Thanks! http://www.swpc.noaa.gov/ftpdir/lists/xray/README http://www.ngdc.noaa.gov/stp/GOES/goes_legend.htm I do wonder if any of the SEM data could be used to predict modifications to the orbital elements? We know that the Sun has impact on the behavior of LEO birds' orbits. We detect that as changes in the mean motion of a few seconds of time over some period. I've got an archive of X-Ray, electron and proton data. I've also got archived orbital data for some vehicles going back to 25 October 2004 on a sporadic basis, and 1 August 2007 on a daily basis with a few gaps. Plus, there's easy access to other historical data. Can anyone suggest a likely test vehicle for me to satisfy some curiosity about? I think the data would be representative of solar wind changes. Correlation & covariance are your friends. :) I'd be after a vehicle like a rocket booster which is probably not actively maneuvering and has a high cross-section, plus is probably less than 500 miles (~4100 mile minor axis) up. I'll look for a few on my own, but it would be interesting to know if there are easy ones to examine which spring to the list's collective mind. John -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHZXUxThFRLa48rEYRAu5KAJ97WpeLP3LvlPrDJnZpidNpgoFCXQCfRnIr XY6dVn204ZIgPOKE5ED5RHU= =LKb1 -----END PGP SIGNATURE----- ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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