[aprssig] Forecast track for K6RPT-12

Mike Besemer (WM4B mwbesemer at cox.net
Mon Dec 3 16:36:18 EST 2012

With the footprint we’re seeing at-altitude, France shouldn’t be that big of
a problem.  

OF course, if it’s descending
 all bets are off.


From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf
Of Steve Daniels
Sent: Monday, December 03, 2012 4:24 PM
To: 'TAPR APRS Mailing List'
Subject: Re: [aprssig] Forecast track for K6RPT-12

You might be out of luck with France I don’t think they are allowed to
connect APRS to the internet, someone may prove me wrong there

Steve Daniels
Amateur Radio Callsign G6UIM
Torbay Freecycle  Owner
APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com
From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf
Of Mark Conner
Sent: 03 December 2012 20:49
To: aprssig at tapr.org
Subject: [aprssig] Forecast track for K6RPT-12

The usual jet charts won't be of much help, as CNSP-18 is flying well above
the jet stream.  The 100-110 kft winds will take a gradual turn to the west,
and I expect the balloon to cruise along roughly 50-52N across the Atlantic.

Float altitude has been key to the forward speed observed.  If the float had
occurred at 98,000 ft, the forward speeds would have been about half what
they are now.  The fact that today's float is in the 110,000 ft range has
put the European coast within reach before the balloon or batteries expire.
 At night the balloon should descend to about 100,000 ft and slow down, but
then rise again tomorrow morning.  I would expect the balloon to be within
range of Irish APRS stations (tuned to 144.39) by 10-12 UTC tomorrow (4th)
and over Germany or Poland by late evening on the 4th.

Unfortunately once we leave the range of Newfoundland stations this evening,
we won't have further updates until we approach Europe - we'll go well north
of the Azores this time.  Far western French and British stations may wish
to tune to 144.39 tomorrow morning as it's possible the balloon could drift
farther south than expected.

73 de Mark N9XTN

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