Bob:<div><br></div><div>My HYSPLIT prediction (just posted) was based on different lat/long that I pulled from APRS.fi with the same time stamp. I will re-run it based on the coordinates below.</div><div><br></div><div>73,</div>
<div>Robert<br><br><div class="gmail_quote">On Thu, Mar 29, 2012 at 11:24 PM, Bob Bruninga <span dir="ltr"><<a href="mailto:bruninga@usna.edu">bruninga@usna.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
It went over my horizon (from Annapolis) at about 0300z just about perfectly<br>
as predicted for aa 15,000' altitude and 180 miles range. Caught me by<br>
surprise, as I was working on plots and so did not try to decode the latest<br>
CW until I noticed I didn't hear it anymore. I think m y last TEMPERATURE<br>
might have been -25C which means it is higher than expected, -OR- the<br>
temperature is colder than the "standard Atmosphere model".<br>
<br>
I really don't know this balloon stuff well. SO we are flying by the seat<br>
of our pants.<br>
<br>
I got 0100z winds aloft for 5k, 10k and 18k feet and used that to back out<br>
an estimated track. Then DR'd that along. My best guesses are posted on<br>
the APRS-IS as objects. And then I updated an object "W3ADO-11" balloon at<br>
my best guess at that 0300z time at a LAT of 37.6N and 73.7W headed 120 at<br>
60 MPH.<br>
<br>
I hope it turns more easterly by morning.<br>
<br>
Everywone listen early as sun rises and maybe we will get some skip?<br>
<br>
Update soon on <a href="http://aprs.org/balloons.html" target="_blank">http://aprs.org/balloons.html</a><br>
<br>
Bob, WB4aPR<br>
<br>
-----Original Message-----<br>
From: Bob Bruninga [mailto:<a href="mailto:bruninga@usna.edu">bruninga@usna.edu</a>]<br>
Sent: Thursday, March 29, 2012 8:43 PM<br>
To: 'Bob Bruninga'; <a href="mailto:amsat-bb@amsat.org">amsat-bb@amsat.org</a><br>
Cc: 'TAPR APRS Mailing List'<br>
Subject: RE: [amsat-bb] Party Balloon Long Duration Mission (LAUNCHED!)<br>
<br>
Balloon was released at 2330z (1930EDT) and is headed SE from Annapolis at 6<br>
knots.<br>
<br>
Rising very slowly. But it reached Freezing (0C) at 0020z so that should be<br>
about 7500'<br>
<br>
See <a href="http://aprs.org/balloons.html" target="_blank">http://aprs.org/balloons.html</a><br>
<br>
-----Original Message-----<br>
Sent: Thursday, March 29, 2012 4:43 PM<br>
<br>
But We notice another Device with CW on nearly the same freq. Our dial freq<br>
will be 28.223 USB dial, but we hear another CW signal (Italian) down at<br>
28.222 USB dial.</B><br>
<P><br>
<br>
Filling balloons now.<br>
<br>
-----Original Message-----<br>
Balloon web page is up. Launch hopefully by sunset from Annapolis Maryland.<br>
<br>
Start here: <a href="http://aprs.org" target="_blank">http://aprs.org</a><br>
<br>
<br>
-----Original Message-----<br>
If we are lucky, we hope to launch our 6 party-balloon long duration payload<br>
Thursday evening around sunset EST. It has no APRS, just a 10m CW<br>
telemetry system. We will have to locate it by signal strength and beam<br>
headings only.<br>
<br>
If you have APRS you can uplink your beam heading via APRS so we can see the<br>
DF solution maybe...<br>
<br>
More tomorrow (again, if we are lucky). It will only be at 15,000 feet or<br>
so, vulnerable to weather and not so great winds...<br>
<br>
The battery could last 10 days....<br>
<br>
Bob, WB4APR<br>
<br>
<br>
<br>
<br>
<br>
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</blockquote></div><br></div>