[aprssig] Roundthe-world approaching Cancouver Island now!
pfbram at comcast.net
Tue Jul 22 20:59:53 CDT 2014
Is there a mathematical or path-hop basis to the larger 577 circle?
I'm still checking the site I found today
and it looks to me like my chance all hinges on how soon the balloon
swings east (assuming it does so). If it goes too far north first, I
predict it'll be too wide an arc to the north and east for me.
If this were a winter launch, things would be more in my favor. We here
in Minnesota frequently get alot of Canadian weather, the meteorologists
call it the so-called Alberta Clipper. It would send the balloon right
(Riding the Clipper would be an excellent winter balloon project for an
amateur group in Canada. But please send us hand-warmers and some
Unibroue, not -25 Fahrenheit...) :-D
Paul / KD0KZE
On 7/22/2014 7:21 PM, Lynn W. Deffenbaugh (Mr) wrote:
> From 41,600 feet, the radio footprint is about 251 miles in all
> directions (radius). In the following screen shot, the balloon is at
> the center. The smaller circle is the radio footprint (notice how all
> of the recent radio receptions are inside that circle?) and the larger
> circle is 577 miles in radius:
> APRSISCE/32 will show you radio footprints for stations flying at
> altitude as will aprs.fi, IIRC.
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> On 7/22/2014 7:48 PM, Paul Bramscher wrote:
>> I've not yet had the opportunity to track a balloon. Anyone know what
>> to expect for the radio footprint on this one, or high altitude balloons
>> in general?
>> On the http://spacenear.us/tracker/ site I'm curious about the blue
>> circles surrounding the various balloons. Do these represent the footprint?
>> Paul, KD0KZE
>> On 7/22/2014 11:58 AM, Robert Bruninga wrote:
>>> G6UIM reports a Balloon launched in the UK is approaching Washington
>>> state from across Asia and the Pacific right now.
>>> See:http://spacenear.us/tracker/ look for Balloon B-63
>>> It is being well received by the APRS network in Canada, Washington and
>>> Oregon as it approaches Vancoover Island as shown here:
>>> That image from Lynn, author of APRSIS32.
>>> Bob, Wb4APR
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