These should have the correct check sum.

RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05

Let me know if they work for you. Also, make certain that both data lines are the same length when you put them into the file for your tracking program. Sometimes due to the font and standards conversion, extra spaces get added.

73,

Alan WA4SCA

<-----Original Message----- <From: John Brier [mailto:johnbrier@gmail.com] <Sent: Monday, January 18, 2021 06:49 <To: Joseph B. Fitzgerald jfitzgerald@alum.wpi.edu <Cc: AMSAT BB amsat-bb@amsat.org <Subject: [AMSAT-BB] Re: RadFxSat-2 TLE < <FYI, if the TLE doesn't load, TLE Doctor may help: < <http://oscar.ok2gz.eu/fox1d.php < < <73, John Brier KG4AKV < <On Sun, Jan 17, 2021, 23:29 Joseph B. Fitzgerald <jfitzgerald@alum.wpi.edu <mailto:jfitzgerald@alum.wpi.edu > wrote: < < < Current best estimate of TLEs < < RadFxSat-2 < 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 < 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05 < < de KM1P Joe < < ----------------------------------------------------------- < < Sent via AMSAT-BB(a)amsat.org http://amsat.org . AMSAT-NA makes this open <forum available < to all interested persons worldwide without requiring membership. Opinions <expressed < are solely those of the author, and do not reflect the official views of AMSAT-NA. < Not an AMSAT-NA member? Join now to support the amateur satellite program! < < View archives of this mailing list at < https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org < To unsubscribe send an email to amsat-bb-leave(a)amsat.org http://amsat.org < Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org <

Hi Alan,

It is lookin better with your corrected TLE.

Our ground software uses a combination of pyorbital and ephem libraries in python. All of the ephem software works with the new TLE, but we're having an odd issue with the TLE with pyorbital.

I'm not sure if you're familiar with python or the library, but the error is below:

self.orbit = int(self._line2[63:68]) ValueError: invalid literal for int() with base 10: '4 0'

But it seems to be having issues with the second line at the last segment, highlighted below:

RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05

Every other TLE we've tried seems to work just fine, even for other satellites and ISS. So any advice or help is greatly appreciated.

Sincerely, Rizwan Merchant KF5BNL

On Mon, Jan 18, 2021 at 8:58 AM Alan wa4sca@gmail.com wrote:

These should have the correct check sum.

RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05

Let me know if they work for you. Also, make certain that both data lines are the same length when you put them into the file for your tracking program. Sometimes due to the font and standards conversion, extra spaces get added.

73,

Alan WA4SCA

<-----Original Message----- <From: John Brier [mailto:johnbrier@gmail.com] <Sent: Monday, January 18, 2021 06:49 <To: Joseph B. Fitzgerald jfitzgerald@alum.wpi.edu <Cc: AMSAT BB amsat-bb@amsat.org <Subject: [AMSAT-BB] Re: RadFxSat-2 TLE < <FYI, if the TLE doesn't load, TLE Doctor may help: < <http://oscar.ok2gz.eu/fox1d.php < < <73, John Brier KG4AKV < <On Sun, Jan 17, 2021, 23:29 Joseph B. Fitzgerald < jfitzgerald@alum.wpi.edu <mailto:jfitzgerald@alum.wpi.edu > wrote: < < < Current best estimate of TLEs < < RadFxSat-2 < 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 07 < 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05 < < de KM1P Joe < < ----------------------------------------------------------- < < Sent via AMSAT-BB(a)amsat.org http://amsat.org . AMSAT-NA makes this open <forum available < to all interested persons worldwide without requiring membership. Opinions <expressed < are solely those of the author, and do not reflect the official views of AMSAT-NA. < Not an AMSAT-NA member? Join now to support the amateur satellite program! < < View archives of this mailing list at < https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org < To unsubscribe send an email to amsat-bb-leave(a)amsat.org < http://amsat.org%3E < Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org <

---

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The line of code above the error originates from the python library, so I'm hoping the answer is yes.

I've tried multiple different copy / pastes and had the same issue thus far.

Sincerely, Rizwan Merchant KF5BNL

On Mon, Jan 18, 2021 at 9:17 AM Zach Metzinger zmetzing@pobox.com wrote:

On 1/18/21 9:10 AM, Rizwan Merchant wrote:

...

self.orbit = int(self._line2[63:68]) ValueError: invalid literal for int() with base 10: '4 0'

While Python is not a language I use often, I might be able to answer this:

Are you sure that column 63 should be included in that text-to-integer conversion? I forget where I saw the TLE format specification, but I'd check that first.

In addition, when you cut/paste from email, make sure spaces aren't being missed somehow.

--- Zach N0ZGO

---

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View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

On 1/18/21 8:56 AM, Alan wrote:

These should have the correct check sum.

Ah ha!

RadFxSat-2 1 99995U 00000 21017.85640046 .00000000 00000-0 10000-4 0 03 2 99995 60.6849 134.0000 0012810 280.8458 55.7744 15.21152014 05

There is an extra space between 60.6849 and 134.0000 on line 2.

Delete this space and all should be good. Fixed-column punched cards strike again!

--- Zach N0ZGO