[amsat-bb] Re: volunteering (Mobile Satellite PAPER Predictor)

Steve Daniels steve at daniels270.eclipse.co.uk
Tue Oct 20 12:59:10 PDT 2009

Hi Bob,
I think the following site does pretty much what you are asking

If you register there and input your location one of the options is to
display a list of Amateur Satellites for a 24 hour period. It does list all
passes and not just the best. You can use the next button to select the
following days. The site developer Chris Peat is very helpful, I am sure he
could tweak the page to better suite our needs


-----Original Message-----
From: Robert Bruninga [mailto:bruninga at usna.edu] 
Sent: 20 October 2009 18:06
To: bruninga at usna.edu; 'Steve Daniels'; amsat-bb at amsat.org
Subject: RE: [amsat-bb] Re: volunteering (Mobile Satellite PAPER Predictor)

Actually, There is another similar WEB page project
That does the same thing for ALL mobile operators,
Not just those with APRS displays.  It is simpler 
And only has a single TEXT output:

Please see the idea on this web page:

PROJECT OBJECTIVE:  Develop a web page that any amateur radio
operator can go to that will print out this very simple PAPER
tracking device.  It is just a piece of paper with 5 columns for
each of 5 days, and on each of those five days, the TIME of the
best overhead pass for that users local area (morning and
evening).  For ECHO (AO51) this simple piece of paper with 10
times on it can be used for SHOWING the pass times of ALL
morning and evening passes for the next 2 or 3 months!  

You don't need no stinkin computer to always know when AO51 is
overhead while you are mobile!  Just look at the TIME on the
paper for today's date. (ECHO's pass times repeat every 5
days)...  Each other satellite has similar REPEATABILITY.  Just
pring one of these slips of papwer for your favorite satellite,
and you will never need to do a prediciton again, yet, will
always hve what you need in the car to predict each day's pass



> -----Original Message-----
> From: amsat-bb-bounces at amsat.org 
> [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Robert
> Sent: Tuesday, October 20, 2009 12:56 PM
> To: 'Steve Daniels'; amsat-bb at amsat.org
> Subject: [amsat-bb] Re: volunteering (Mobile Satellite
> > I would like to volunteer to help out 
> > in whatever capacity I can. I run my
> > own web server built by myself and a 
> > few websites.
> Seeing your message, caused me to stop and think, what is the
> next thing I think might be valuable to help the general
> radio operators to better operate the satellites?  Again, this
> might not be at all what you are interested in, but let me
> a go at defining a nice project for someone in case this fits
> anyone's talents.
> PROBLEM:  To play satellites, you need to have a tracking
> program and to WATCH it all the time or do PLANNING to know
> to go play satellites.  Actually, this is so... Past decade.
> OBJECTIVE:  What we need is a "service" that continuously
> SAT-IN-VIEW information to everyone in the field right there
> their radio front panel, whenever any AMSAT is in view.  This
> way, you can be mobile, or hiking, or anywhere on the planet,
> and right their even without ASKING, the information will be
> PUSHED to you.
> SOLUTION:  Actually, this capability has existed since about
> 1997 on the APRS channel, but it only works where a LOCAL
> individual runs either APRSdata or DIGI_NED in the local
> and maintains it.  In this case, mobiles, or anyone monitoring
> the national APRS channel will receive this INSTANT
> not only showing any SAT in view, but also its AZIMUTH,
> ELEVATION and FREQUENCY of both the uplink and downlink AND
> You can see examples of this system on
> http://www.aprs.org/localinfo.html .  Move your slider about
> down the page and look for the paragraph LOCAL SATELLITE
> This way you don't need any PC, or anything.  But if you are
> mobile and if a satellite comes above the horizon in your
> and you monitor APRS on your APRS mobile radio, then you will
> able to work the satellite (also mobile, since we only output
> the satellites that are easy to work from a mobile)...  The
> on the satellite is updated once each minute when it is above
> the horizon.
> Also, once each TEN minutes a SCHEDULE of any satellites
> up in the next 80 minutes is transmitted to the DX LIST inside
> your radio, so you can also check for any future passes.
> PROJECT:  Rather than having to have 1000 volunteers all over
> the world, one in the footprint of every APRS local area have
> operate and maintain one of these programs (which is why most
> people never see these alerts), it would be nice if there was
> just ONE central server that fed this data everywhere.  Then
> only one person would have to update the server when new
> satellites were launched and once every week or so to download
> new TLE element sets.
> ISSUES:  In one sense this would be a great step forward, in
> centralizing the generation of this data.  But the problem is,
> that it still will not go from the APRS-internet stream back
> local RF in each local area, unless a local Igate operator
> the "server" to his gate-to-RF list.  But at least that is
> simpler than having to maintain a program.
> Local AMSAT mobiles who want this feed, just ask their local
> Igate operator to add the server, and from then on, whenever
> mobile, they will see these alerts. 
> RESULT:  Every mobile everywhere that is in view of a
> even without any prior planning, will be alerted to a
> in view, its direction and elevation, its frequency and its
> Doppler, right there on the front panel of his APRS radio.
> See the web page for what these displays look like on an APRS
> radio:
> Bob, WB4APR 
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of 
> the author.
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