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CX2SA > SATDIG 28.11.13 05:40l 836 Lines 24333 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Antenna Check (Rolf Krogstad)
2. Re: a blast from the past (Rich/wa4bue)
3. Re: AO73 keps in NWF. (Cor .)
4. Re: FT-847 + MD-100 for sale! (Stefan Wagener)
5. Re: HumSat-D (Bill Ress) (Rob styles)
6. AMSAT-NA Keps Page (Clint Bradford)
7. Re: AMSAT-NA Keps Page (Stefan Wagener)
8. Re: HumSat-D (Alberto Gonz?lez Mui?o)
9. Re: AMSAT-NA Keps Page (Bryce Salmi)
10. Re: AMSAT-NA Keps Page (Clint Bradford)
11. Re: AMSAT-NA Keps Page (Clint Bradford)
12. Re: AMSAT-NA Keps Page (Alan)
13. Re: AMSAT-NA Keps Page (Stefan Wagener)
14. Re: AMSAT-NA Keps Page (Clint Bradford)
15. Re: AMSAT-NA Keps Page (Stefan Wagener)
16. Re: AMSAT-NA Keps Page (Joseph Armbruster)
----------------------------------------------------------------------
Message: 1
Date: Wed, 27 Nov 2013 14:06:02 -0600
From: Rolf Krogstad <rolf.krogstad@xxxxx.xxx>
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: "<AMSAT-BB@xxxxx.xxx>" <amsat-bb@xxxxx.xxx>, Jeff Kelly
<jkelly@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Antenna Check
Message-ID:
<CAJJyj=apVvZsCekZ1UU7fyoBZ5n4yv=qw7fWa=T=-F4YjqxZeA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Jeff
This may not be news to you in which case Delete the message.
Drew mentions feedline. Especially at 435 MHz, the loss of signal (both
received and transmitted) is something to consider. I have a 50 foot tower
and a total of about 95 feet of coax between the antenna and the rig.
A good quality coax such as Times Microwave 400 on two meters works well.
I put in hard line for 435 MHz as well as a mast mounted preamp because
the line loss at 100 ft is significant at UHF and higher frequencies.
Here is a link which will show how many dB of loss you will have at
different frequencies for different types of coax.
http://www.saarsham.net/coax.html
If you have 100 feet of RG-8 coax you will lose half your power in the
line. AND the received signal is similarly affected.
73
Rolf NR0T
On Wed, Nov 27, 2013 at 11:37 AM, Andrew Glasbrenner <
glasbrenner@xxxxxxxxxx.xxx> wrote:
> You'll get some polarity fading, abd the feedline type and length is very
> important, but yes, they will work.
>
> 73, Drew KO4MA
>
> Sent from my iPhone
>
> > On Nov 27, 2013, at 11:28 AM, "Jeff Kelly" <jkelly@xxxxxxx.xxx> wrote:
> >
> > I am planning on rebuilding my satellite station with smaller linear
> beam antennas.
> > I just don?t have room for the 22C and 40CX.
> >
> > The plan is to use a 3 element 2 meter M2 beam and a 6 element 435 M2
> beam on
> > a Yaesu rotator. I still have my 847 and a 2 meter amp if needed.
> >
> > Would these antennas work ok for FuneCubeSat?
> >
> > Thanks,
> >
> > Jeff
> > K2SDR
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 2
Date: Wed, 27 Nov 2013 15:14:51 -0500
From: "Rich/wa4bue" <richard.siff@xxxxxxx.xxx>
To: <kb2m@xxxxxxx.xxx>, "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: a blast from the past
Message-ID: <540D6448987A4BDAA272093328DCD2DB@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Great
----- Original Message -----
From: <kb2m@xxxxxxx.xxx>
To: "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Sent: Wednesday, November 27, 2013 9:30 AM
Subject: [amsat-bb] a blast from the past
>
>
> Here's an old link I found to my old KB2WQM QSL.net webpage. Check out the
> sat news banner. The background is a picture from one of the window's on
> MIR. Some of the links are still good! The time was before AO-40 went up,
> and just after RS-10/11 died. Very fond memories from my early sat op days
> :-)
>
> http://www.qsl.net/kb2wqm/index.html
>
> 73 Jeff KB2M
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 3
Date: Wed, 27 Nov 2013 21:55:22 +0100
From: "Cor ." <kenwoodtrx@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO73 keps in NWF.
Message-ID: <DUB124-W1250B0EC27BC07F9B49DEFC2EF0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello Jim,
You have to load AO73 keps manually into Nova for windows.
Read my posting earlier on amsat-bb
http://www.amsat.org/amsat/archive/amsat-bb/48hour/msg99759.html
73's Cor PD0RKC
------------------------------
Message: 4
Date: Wed, 27 Nov 2013 15:08:37 -0600
From: Stefan Wagener <wageners@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: FT-847 + MD-100 for sale!
Message-ID:
<CAKu8kHBuzZwVrmghgYg+UJENstEWxX6vMCL3x0Bvb3qCaTxmmg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
The radio and microphone has been sold.
Thanks!
Stefan, VE4NSA
On Tue, Nov 26, 2013 at 8:20 PM, Stefan Wagener <wageners@xxxxx.xxx> wrote:
> We have reduced the price!
>
> FT-847 plus Md-100 ready to be shipped, all boxed up!
>
> $850 shipped within US and Canada!
>
> Don't miss that one.
>
>
> On Sat, Nov 23, 2013 at 4:20 PM, Stefan Wagener <wageners@xxxxx.xxx>wrote:
>
>> Have a nice FT-847 and a beautiful MD-100 matching microphone for sale.
>>
>> Comes with the original box and power cord. Tested it on the local
>> repeater. Works fine. Condition 8 out of 10. Case is nice with very minor
>> wear. Display has a scratch. Power button works fine. It is a year 2000
>> model. The MD-100 microphone looks like new.
>>
>> These items were donated to our ARISS telebridge station and this is a
>> fundraising sale.
>>
>> Will sell both within continental US and Canada for $950 shipped (!) as
>> well as considering offers on the radio and the microphone separately.
>> Picture available.
>>
>> Please contact me directly if interested (my callsign at gmail.com).
>>
>> Thanks, Stefan VE4NSA
>>
>
>
------------------------------
Message: 5
Date: Wed, 27 Nov 2013 21:11:04 +0000
From: Rob styles <robpegs@xxxxxxx.xxx>
To: "=?utf-8?Q?amsat-bb@xxxxx.xxxxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: HumSat-D (Bill Ress)
Message-ID: <DUB407-EAS1225E76A646D6122AE60394B1EF0@xxx.xxx>
Content-Type: text/plain; charset="utf-8"
Many thanks Bill N6GHZ, I will try again tomorrow, good to know the TLE?s
are close.
Any one interested in HumSat-D should visit http://www.humsat.org/
Regards
Rob M0TFO
------------------------------
Message: 6
Date: Wed, 27 Nov 2013 14:33:26 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT-NA Keps Page
Message-ID: <65243F0B-FD58-4D4A-AB87-4CFB7A8053BE@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
Two hours ago, I went to the AMSAT.org site, and checked on the Keplerian
data files that were
available.
But I just now clicked on it, and it throws me to the 2005-era Keps page -
with the light blue
background ...
My browser's cache isn't THAT old ...
Clint
------------------------------
Message: 7
Date: Wed, 27 Nov 2013 17:42:26 -0600
From: Stefan Wagener <wageners@xxxxx.xxx>
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID:
<CAKu8kHA9D_hW6AutpjVt1wVuW52jngVa4f9+LpLxO78SgT7DOg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Clint,
help me understand why you would go to the AMSAT website for keps?
AMSAT will use keps that are available for download from another source be
it
celestrak
http://celestrak.com
or space-track
https://www.space-track.org
and someone at AMSAT (e.g. volunteer) has to publish those on the AMSAT
website. There will always be a delay since you add another step in the
process.
Use the most up to date source (see above). My point of view, AMSAT should
not be publishing keps (unless they are the only ones getting them directly
from the source for a brand new satellite and have a mechanism in place to
update them immediately once they change) but rather pointing to the best
source.
Stefan, VE4NSA
On Wed, Nov 27, 2013 at 4:33 PM, Clint Bradford <clintbradford@xxx.xxx>wrote:
> Two hours ago, I went to the AMSAT.org site, and checked on the Keplerian
> data files that were
> available.
>
> But I just now clicked on it, and it throws me to the 2005-era Keps page -
> with the light blue
> background ...
>
> My browser's cache isn't THAT old ...
>
> Clint
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 8
Date: Wed, 27 Nov 2013 19:22:53 +0100
From: Alberto Gonz?lez Mui?o <agmuino@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Cc: m0tfo@xxxxx.xxx
Subject: [amsat-bb] Re: HumSat-D
Message-ID:
<CANYWAz1Crpv392uhUELvHUok48fA6tQxaLm53Era=Q_fXD93Bg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Hi Rob,
I'm Alberto from the Humsat-D team. Humsat-D is working as expected, we
were commanding the satellite in every pass from the launch and it looks
healthy :)
Humsat-D has a CW / MSK-1200bps beacon in 437,325 MHz. More details can be
found in http://www.humsat.org/radio-amateurs/.
We don't have a NORAD TLE yet but we are generating a new TLE every day
taking into account AOS and LOS times and Doppler shift. We are publishing
it in the website as soon as it's verified.
Thank you for your interest and support, we really appreciate it.
73
Alberto - EC1DMA
2013/11/27 <m0tfo@xxxxx.xxx>
> Any news on HumSat-D ? HumSAT project last report was on the 22nd Nov
> -Anyone receiving beacons or telemetry Humsat-D (University of Vigo ?
> Spain) 437,325 MHz CW.
>
>
>
> 437,525 MHz GMSK-1200bps
>
>
> CW beacon with different parameters of the satellite (only in sunlight)
> TM every 150 seconds with all the housekeeping parameters (only in
> sunlight).
>
>
> The latest TLE?s I have are :-
>
> HUMSAT-D
> 1 99999U 99999 13329.00000000 .00007343 00000-0 87509-3 0 00055
> 2 99999 097.8049 041.5704 0032992 194.8244 256.4110 14.84000018000018
>
>
> Reports to humd.reports at humsat.org
>
>
>
>
>
> Rob
>
> M0TFO
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 9
Date: Wed, 27 Nov 2013 16:32:30 -0800
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: Stefan Wagener <wageners@xxxxx.xxx>
Cc: Clint Bradford <clintbradford@xxx.xxx>, AMSAT BB
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID:
<CAN5j0sox+g40xhe2BEChjYoGfJm9HHAw4_meqg=VSjNZPV9a-w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
We currently point to the old website (simply disabled the portions that
used the database causing errors earlier in the year). This way we can use
the information from the older website until it can be ported over to the
new website (which is actually very easy but someone needs to do it! hint
hint for any potential volunteers). Those of us volunteering for the
website over the Summer work pushed to get the functioning website up and
running on Wordpress but in cases such as mine I've refocused most of my
time to Fox-1 engineering (free time that is) to keep that moving along.
There's still valuable kep information regarding what they are and how they
are derived. I agree we need to figure out the actual element issue and
it's been a recent topic for the website volunteers since the AO-73 launch.
Suggestions are always welcome and help bring attention to something us
volunteers may be missing.
Bryce
KB1LQC
On Wed, Nov 27, 2013 at 3:42 PM, Stefan Wagener <wageners@xxxxx.xxx> wrote:
> Hi Clint,
>
> help me understand why you would go to the AMSAT website for keps?
>
> AMSAT will use keps that are available for download from another source be
> it
>
> celestrak
>
> http://celestrak.com
>
> or space-track
>
> https://www.space-track.org
>
> and someone at AMSAT (e.g. volunteer) has to publish those on the AMSAT
> website. There will always be a delay since you add another step in the
> process.
>
> Use the most up to date source (see above). My point of view, AMSAT should
> not be publishing keps (unless they are the only ones getting them directly
> from the source for a brand new satellite and have a mechanism in place to
> update them immediately once they change) but rather pointing to the best
> source.
>
> Stefan, VE4NSA
>
>
>
> On Wed, Nov 27, 2013 at 4:33 PM, Clint Bradford <clintbradford@xxx.xxx
> >wrote:
>
> > Two hours ago, I went to the AMSAT.org site, and checked on the Keplerian
> > data files that were
> > available.
> >
> > But I just now clicked on it, and it throws me to the 2005-era Keps page
> -
> > with the light blue
> > background ...
> >
> > My browser's cache isn't THAT old ...
> >
> > Clint
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
> >
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 10
Date: Wed, 27 Nov 2013 16:42:54 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
To: Stefan Wagener <wageners@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID: <7F7760B8-D004-415A-BE50-E2BE0CA3F944@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
Why AMSAT-NA for Keps?
It has been great using their .pdb copy that seems to get updated every
Thursday evening. It has worked out marvelously for me for years. And at
least one excellent program uses it - PocketSat.
Sent from my iPod touch.
On Nov 27, 2013, at 3:42 PM, Stefan Wagener <wageners@xxxxx.xxx> wrote:
> Hi Clint,
>
> help me understand why you would go to the AMSAT website for keps?
------------------------------
Message: 11
Date: Wed, 27 Nov 2013 17:18:51 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
To: Stefan Wagener <wageners@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID: <00633A9D-B4CE-4C66-81CC-1C7683C8192E@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... why you would go to the AMSAT website for keps?
I certainly hope you are not demeaning what AMSAT-NA has done for many years
for Kep data.
NO - it is not up-to-date to the moment. And with more than 60 birds
launched last week alone,
it will take time for AMSAT's particular delivery method to "catch up."
So it probably is not the primary source for data right now - if folks are
working these brand new
birds.
But for YEARS, it has proven to be a reliable source for the "established"
satellites. I know no one
would make light of that source for information.
Clint K6LCS
------------------------------
Message: 12
Date: Wed, 27 Nov 2013 19:21:45 -0600
From: Alan <wa4sca@xxxxx.xxx>
To: "'Clint Bradford'" <clintbradford@xxx.xxx>, "'AMSAT BB'"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID: <08600B4055B94B1387EA7D3655FFB0E9@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Clint,
True, and if you click on either of the Keps links, you get the latest AMSAT
Keps distribution. At
some point we need to update it to the new style, but the functionality is
there.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx
<[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Clint Bradford
<Sent: Wednesday, November 27, 2013 4:33 PM
<To: AMSAT BB
<Subject: [amsat-bb] AMSAT-NA Keps Page
<
<Two hours ago, I went to the AMSAT.org site, and checked on
<the Keplerian data files that were
<available.
<
<But I just now clicked on it, and it throws me to the 2005-era
<Keps page - with the light blue
<background ...
<
<My browser's cache isn't THAT old ...
<
<Clint
<_______________________________________________
<Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of
<the author.
<Not an AMSAT-NA member? Join now to support the amateur
<satellite program!
<Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
<
------------------------------
Message: 13
Date: Wed, 27 Nov 2013 19:40:02 -0600
From: Stefan Wagener <wageners@xxxxx.xxx>
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID:
<CAKu8kHBSuCNSBGB3_xLL0o_UsfQXgoF48eCDDcGfb35Hioxzjw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
No problem,
if that is so important to you, why are you complaining about it on this
board and "demeaning" it yourself:
"My browser's cache isn't THAT old ..."
Maybe next time you have the courtesy to ask the Amsat volunteers directly
about the status of the website and if you don't care for feedback don't
post it here.
Simple as that!
Stefan
On Wed, Nov 27, 2013 at 7:18 PM, Clint Bradford <clintbradford@xxx.xxx>wrote:
> >> ... why you would go to the AMSAT website for keps?
>
> I certainly hope you are not demeaning what AMSAT-NA has done for many
> years for Kep data.
>
> NO - it is not up-to-date to the moment. And with more than 60 birds
> launched last week alone,
> it will take time for AMSAT's particular delivery method to "catch up."
>
> So it probably is not the primary source for data right now - if folks are
> working these brand new
> birds.
>
> But for YEARS, it has proven to be a reliable source for the "established"
> satellites. I know no one
> would make light of that source for information.
>
> Clint K6LCS
>
>
------------------------------
Message: 14
Date: Wed, 27 Nov 2013 17:44:18 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
To: Stefan Wagener <wageners@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID: <B1D4BC8E-35B5-42DF-A2D6-00176FD5B01F@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
You missed my point entirely - OR I didn't express myself well ...
Mid-day today, I clicked on the Keps page at AMSAT-NA, and was sent to
a "new style" page - one with the same "look and feel" as the new home page.
But right now, when I go to the same link, I am sent to the "old style," light
blue background page, with the "Last Updated January 4, 2005" notation.
Just wondering what was up - that is all.
Clint K6LCS
------------------------------
Message: 15
Date: Wed, 27 Nov 2013 19:46:47 -0600
From: Stefan Wagener <wageners@xxxxx.xxx>
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID:
<CAKu8kHAHTbiJvJbtC7kX=rzJP+KRvgRrJLOT533DqWNLGeKYaA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Sounds good!
All is well and we are on the same page. Thanks for clarifying.
Stefan
On Wed, Nov 27, 2013 at 7:44 PM, Clint Bradford <clintbradford@xxx.xxx>wrote:
> You missed my point entirely - OR I didn't express myself well ...
>
> Mid-day today, I clicked on the Keps page at AMSAT-NA, and was sent to
> a "new style" page - one with the same "look and feel" as the new home
> page.
>
> But right now, when I go to the same link, I am sent to the "old style,"
> light
> blue background page, with the "Last Updated January 4, 2005" notation.
>
> Just wondering what was up - that is all.
>
> Clint K6LCS
------------------------------
Message: 16
Date: Wed, 27 Nov 2013 22:27:55 -0500
From: Joseph Armbruster <josepharmbruster@xxxxx.xxx>
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-NA Keps Page
Message-ID:
<CADkz4c-6MtzX2a+r8-OFJr9NFufB3NLaNmVdhcUDssWb4ht2gg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On a side-note, I figured I would offer-up a short, technical side-note for
anyone that is interested. I would like to address two common issues that
people run into:
a) obtaining the latest amateur radio keps from spacetrack (without having
to explicitly log into the website)
b) host your own keps on a local server, so you do not have to be dependent
on third party websites for keps (maybe you're out in the field?)
Both of these can be accomplished very easily using the Python snippet
below. For the record, this code is a rapid prototype that does not check
return values or catch exceptions. It is the bare-bones needed for
illustration purposes. This is the complete code snippet:
import urllib, urllib2
import SimpleHTTPServer, SocketServer
host = 'localhost'
port = 8000
auth_url = 'https://www.space-track.org/ajaxauth/login'
keps_url = '
https://www.space-track.org/basicspacedata/query/class/tle_latest/favorites/am
ateur/ORDINAL/1/EPOCH/%3Enow-30/format/3le
'
credentials = {
'identity':'YOUR_SPACETRACK_USERNAME',
'password':'YOUR_SPACETRACK_PASSWORD'
}
print 'downloading keps'
credentials = urllib.urlencode(credentials)
request = urllib2.Request(auth_url, credentials)
response = urllib2.urlopen(request)
cookie = response.headers.get('Set-Cookie')
request = urllib2.Request(keps_url)
request.add_header('cookie', cookie)
keps = urllib2.urlopen(request).readlines()
open('updated_keps.txt','w').writelines(keps)
print 'serving keps on %s port %d' % (host, port)
Handler = SimpleHTTPServer.SimpleHTTPRequestHandler
httpd = SocketServer.TCPServer((host, port), Handler)
httpd.serve_forever()
The first part of the script, downloads the keps from spacetrack and stores
them into a text file named "updated_keps.txt". This file is created from
the same path that the script is executed from (so that should be the
folder on the desktop). The second piece of code, hosts the keps via http
on your local machine, using a local-socket. To access the keps from your
browser or from a third-party app, simply specify the url:
http://localhost:8000/updated_keps.txt.
To use this code, all you need to do is:
- install python 2.7 (see http://www.python.org)
- drop this script into a folder on your desktop
- double click it
If you would like to expand upon this, let me know and I can help out.
Joseph Armbruster
On Wed, Nov 27, 2013 at 7:42 PM, Clint Bradford <clintbradford@xxx.xxx>wrote:
> Why AMSAT-NA for Keps?
>
> It has been great using their .pdb copy that seems to get updated every
> Thursday evening. It has worked out marvelously for me for years. And at
> least one excellent program uses it - PocketSat.
>
> Sent from my iPod touch.
>
> On Nov 27, 2013, at 3:42 PM, Stefan Wagener <wageners@xxxxx.xxx> wrote:
>
> > Hi Clint,
> >
> > help me understand why you would go to the AMSAT website for keps?
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
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End of AMSAT-BB Digest, Vol 8, Issue 428
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